Single Duct Air Terminal Zone Controller
VAV Fan Terminal Zone Controller
Secondary Terminal Zone Controller
Installation, Start-Up and
Configuration Instructions
Part Numbers 33ZCFANTRM, 33ZCVAVTRM, 33ZCSECTRM
Service Configuration Selection Screen. . . . . . . . . 37
CONTENTS
• AIRFLOW SERVICE CONFIGURATION SCREEN
• TERMINAL SERVICE CONFIGURATION SCREEN
• OPTIONS SERVICE CONFIGURATION SCREEN
• SECONDARY DAMPER SERVICE
Page
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . 1
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Zone Controller Hardware . . . . . . . . . . . . . . . . . . . . . . . . 2
Field-Supplied Hardware . . . . . . . . . . . . . . . . . . . . . . . . . 2
• SPACE TEMPERATURE SENSOR
• PRIMARY AIR TEMPERATURE SENSOR
• SUPPLY AIR TEMPERATURE (SAT) SENSOR
• RELATIVE HUMIDITY SENSOR
• INDOOR AIR QUALITY (CO2) SENSOR
Mount Zone Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
• LOCATION
CONFIGURATION SCREEN
Maintenance Table Menu Screen . . . . . . . . . . . . . . . . 43
• LINKAGE MAINTENANCE TABLE
• OCCUPANCY MAINTENANCE TABLE
• ZONE AIR BALANCE/COMMISSIONING TABLE
• ZONE MAINTENANCE TABLE
SAFETY CONSIDERATIONS
SAFETY NOTE
Air-handling equipment will provide safe and reliable
service when operated within design specifications. The
equipment should be operated and serviced only by
authorized personnel who have a thorough knowledge
of system operation, safety devices and emergency
procedures.
• MOUNTING
Connect the Power Transformer. . . . . . . . . . . . . . . . . . 7
Connect Airflow Pickups . . . . . . . . . . . . . . . . . . . . . . . . . 7
Install Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
• SPACE TEMPERATURE SENSOR INSTALLATION
• PRIMARY AIR TEMPERATURE SENSOR
INSTALLATION
Good judgement should be used in applying any manu-
facturer’s instructions to avoid injury to personnel or dam-
age to equipment and property.
• SUPPLY AIR TEMPERATURE (SAT) SENSOR
INSTALLATION
• INDOOR AIR QUALITY SENSOR INSTALLATION
• HUMIDITY SENSOR (WALL-MOUNTED)
INSTALLATION
Remote Occupancy Contact. . . . . . . . . . . . . . . . . . . . . 26
Connect the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Modulating Baseboard Hydronic Heating. . . . . . . . 26
Connect the CCN Communication Bus . . . . . . . . . . 26
• COMMUNICATION BUS WIRE SPECIFICATIONS
• CONNECTION TO THE COMMUNICATION BUS
Disconnect all power to the unit before performing mainte-
nance or service. Unit may automatically start if power is
not disconnected. Electrical shock and personal injury
could result.
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-31
Perform System Check-Out . . . . . . . . . . . . . . . . . . . . . 29
Network Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Initial Operation and Test. . . . . . . . . . . . . . . . . . . . . . . . 30
Airflow Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Fan and Heat Configuration and Test. . . . . . . . . . . . 30
If it is necessary to remove and dispose of mercury contac-
tors in electric heat section, follow all local, state, and fed-
eral laws regarding disposal of equipment containing
hazardous materials.
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-50
Points Display Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Modify Controller Configuration. . . . . . . . . . . . . . . . . 32
• ALARM LIMIT CONFIGURATION SCREEN
• CONTROLLER IDENTIFICATION SCREEN
• HOLIDAY CONFIGURATION SCREENS
• LINKAGE COORDINATOR CONFIGURATION
SCREEN
• OCCUPANCY CONFIGURATION SCREEN
• SET POINT SCREEN
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 533-355 Printed in U.S.A. Form 33ZC-1SI Pg 1 303 11-99 Replaces: New
Book
1
4
Tab 11a 13a
CCN
SYSTEM
MONITORING
SOFTWARE
CCN PRIMARY BUS (BUS 0)
CC6400 OR CSAM
EQUIPPED
FULLY
COMPATIBLE
AIR HANDLER
NON-CCN
AIR HANDLER
BRIDGE
(RECOMMENDED)
COMFORTID
EQUIPPED
AIR TERMINAL
(1 OF UP TO 128)
ADDRESSED
SEQUENTIALLY
SECONDARY BUS
DATA
COLLECTION
OPTION
LEGEND
CCN — Carrier Comfort Network
CSAM — Comfort System AirManager
Fig. 1 — Typical Carrier Linkage System
3
DAMPER
SHAFT
ACTUATOR
CLAMP
ASSEMBLY
LOW PRESSURE
TUBING ROUTING
+24V
SPT
GND
SAT
RH/IAQ
GND
US
C
FAN AC
FAN
MECHANICAL
STOP
SECFLOW
+10V
24VAC
N/A
HEAT3
T56
GROMMET
DMPPOS
GND
GND
1
0
PAT
TEST
REMOTE
®
GND
HF23BJ042
Made in Switzerland
by Belimo Automation
ZONE Controller
®
35 in-lb (4 Nm)
80...110s
CW
COM
COW
+
+
LR 92800
NEMA 2
3art Number: 33ZCFANTRM
S/N:
Bus#:
LISTED
94D5
TENP IND
Element#:
Unit#:
&
ANTI-
REG. EQUIP.
ROTATION
TAB
Class 2 Supply
24VAC/DC
50/60 Hz
3VA 2W
J6
+
5K
COM
6
1
WIP
blu
1
2
3
ACTUATOR
RELEASE
BUTTON
yel
ora
red wht
blk
NOTE: Actuator clamp accepts dampers
shafts with the following characteristics:
Round — 1/4-in. to 5/8-in.
(6 to 16 mm)
HIGH
PRESSURE
TUBING
Square — 1/4-in. to 7/16-in.
(6 to 11 mm)
ROUTING
Damper shaft must be a minimum of 1.5-in.
(38 mm) long.
→
Fig. 2 — Zone Controller Physical Details (33ZCFANTRM Shown)
R E L AT I V E H U M I D I T Y S E N S O R — The
33AMSENRHS000 relative humidity sensor is required for
zone humidity control (dehumidification).
3. Press the release button on the actuator and rotate the
clamp in the same direction that was required to close
the damper in Step 2.
NOTE: The relative humidity sensor and CO2 sensor cannot
be used on the same zone controller.
4. Press the release button on the actuator and rotate the
actuator back one position graduation. Release the but-
ton and lock the actuator in this position.
5. Mount the zone controller to the terminal by sliding
the damper shaft through the actuator clamp assembly.
Secure the zone controller to the duct by installing
the screw provided through the grommet in the anti-
rotation tab. Be sure the floating grommet is in the
center of the slot. Failure to center the grommet may
cause the actuator to stick or bind.
INDOOR AIR QUALITY (CO2) SENSOR — An indoor air
quality sensor is required for optional demand control ventila-
tion. The CGCDXSEN002A00 CO2 Sensor is an indoor,
wall mounted sensor with an LED display. The
CGCDXSEN003A00 CO2 Sensor is an indoor, wall mounted
sensor without display.
NOTE: The relative humidity sensor and CO2 sensor cannot
be used on the same zone controller.
6. Tighten the actuator clamp assembly to the damper
shaft. Secure by tightening the two 10-mm nuts.
Mount Zone Controller
LOCATION — The zone controller must be mounted on the
air terminal’s damper actuator shaft. For service access, there
should be at least 12 in. of clearance between the front of the
zone controller and adjacent surfaces. Refer to Fig. 6.
MOUNTING — Perform the following steps to mount the
zone controller:
7. If the damper has less than 90 degrees of travel
between the fully open and fully closed positions, then
a mechanical stop must be set on the actuator. The
mechanical stop prevents the damper from opening
past the maximum damper position. To set the
mechanical stop, perform the following procedure:
1. Visually inspect the damper and determine the direc-
tion in which the damper shaft moves to open the
damper — clockwise (CW) or counterclockwise
(CCW). Refer to Fig. 7.
a. Press the actuator release button and rotate the
damper to the fully open position.
b. Using a Phillips screwdriver, loosen the appropri-
ate stop clamp screw.
c. Move the stop clamp screw so that it contacts the
edge of the cam on the actuator. Secure the stop
clamp screw in this position by tightening the
screw.
If the damper rotates CCW to open, it does not require
any configuration changes.
If the damper rotates CW to open, then the damper
actuator logic must be reversed. This is done in the
software when performing system start-up and damper
calibration test. Do not attempt to change damper rota-
tion by changing wiring. This will upset the damper
position feedback potentiometer readings.
8. Verify that the damper opens and closes. Press the
actuator release button and rotate the damper. Verify
that the damper does not rotate past the fully open
position. Release the button and lock the damper in the
fully open position.
2. Rotate the damper shaft to the fully closed position.
Note direction of rotation.
801
4
—
+24V
SPT
GND
SAT
RH/IAQ
GND
US
C
FAN AC
FAN
SECFLOW
+10V
24VAC
N/A
HEAT3
T56
DMPPOS
GND
GND
1
0
PAT
TEST
REMOTE
®
GND
HF23BJ042
Made in Switzerland
by Belimo Automation
ZONE Controller
®
35 in-lb (4 Nm)
80...110s
CW
COM
COW
+
+
LR 92800
NEMA 2
Part Number: 33ZCFANTRM
S/N:
Bus#:
LISTED
94D5
TENP IND
Element#:
Unit#:
&
REG. EQUIP.
Class 2 Supply
24VAC/DC
50/60 Hz
3VA 2W
J6
+
5K
COM
6
1
WIP
blu
1
2
3
yel
red wht
ora
blk
→
Fig. 3 — VAV Fan Terminal Zone Controller
+24V
RH/IAQ
GND
US
C
SPT
GND
SAT
T56
SECFLOW
+10V
DMPPOS
GND
GND
PAT
1
0
TEST
REMOTE
®
GND
HF23BJ042
Made in Switzerland
by Belimo Automation
ZONE Controller
®
35 in-lb (4 Nm)
80...110s
+
+
LR 92800
NEMA 2
Part Number: 33ZCVAVTRM
S/N:
Bus#:
LISTED
94D5
TENP IND
Element#:
Unit#:
&
REG. EQUIP.
Class 2 Supply
24VAC/DC
50/60 Hz
3VA 2W
J6
+
5K
COM
6
1
WIP
blu
1
2
3
yel
red wht
ora
blk
→
Fig. 4 — Single Duct Air Terminal Zone Controller
5
801
®
US
C
GND
OUT
+10V
CW
D
FLOW
TPUT
OV
1
0
COM
CCW
MMON
CW
®
HF23BJ042
ZONE Controller
J1
Made in Switzerland
by Belimo Automation
35 in-lb (4 Nm)
80...110s
LR 92800
Part Number: 33ZCSECTRM
S/N:
NEMA2
LISTED
94D5
TEMP. IND. & U
L
REG. EQUIP.
Unit#:
Class 2 Supply
24VAC/DC
50/60Hz
J2
3VA
2W
5K
COM
1
6
WIP
2
3
1
blk
blu ora
red wht
yel
Fig. 5 — Secondary Terminal Zone Controller
ALLOW 12” CLEARANCE FOR SERVICE
ACCESS TO CONTROL BOX
3” REF.
ZONE
CONTROLLER
END VIEW INLET
Fig. 6 — Service Clearance for Zone Controller Mounting
6
NOTE: Do not run sensor or communication wiring in the
same conduit with line-voltage wiring.
NOTE: An accessory conduit box (part no. 33ZCCONBOX) is
available for conduit wiring connections to the zone controller.
Perform the following steps to connect the power
transformer:
AIR
FLOW
1. Install the field-supplied transformer in an electrical
enclosure that conforms to NEC and local codes.
2. Connect 24 vac from the transformer as shown in the
CW TO OPEN, CCW TO CLOSE
applicable wiring diagram (Fig. 8A-J).
Connect Airflow Pickups — The zone controller de-
termines velocity pressure by obtaining the difference between
high and low duct pressure from two airflow pickups. The
pickups are connected to barb fittings on the zone controller
AIR
FLOW
1
with /4-in. polyethylene tubing. All piping for this purpose
must conform to local codes.
Figure 9 indicates the positions of the two barb fittings.
Perform the following steps to install and connect the air-
flow pickups:
CCW TO OPEN, CW TO CLOSE
1. Select a location on the air handler’s supply air duct
where the airflow pickups will be installed. The loca-
tion should be one where there are at least three duct
diameters of straight duct upstream of the pickups. If
this requirement is not met, stable airflow measure-
ments may not be possible.
Fig. 7 — Damper Configuration
Connect the Power Transformer — An individual,
field-supplied, 24 vac power transformer is recommended for
each zone controller. If multiple zone controllers are powered
from one power transformer (100 va maximum for UL [Under-
writers’ Laboratories] Class 2 conformance), maintain polarity
on the power input terminals. All transformer secondaries are
required to be grounded. Use only stranded copper conductors
for all wiring to the zone controller. Wiring connections must
be made in accordance with NEC (National Electrical Code)
and local codes. Ground the transformer at the transformer lo-
cation. Provide an 18-gage, green, chassis ground wire at the
terminal.
2. Mount the field-supplied airflow pickup(s) in the duct,
following the manufacturer's directions. Two individ-
ual pickups may be used, one for high pressure airflow
and one for low pressure airflow. A dual pickup, which
combines the two functions, may also be used. When
using individual pickups, make sure that the one for
high pressure airflow faces upstream, in the direction
the air is coming from, and the one for low pressure
airflow faces downstream, in the direction the air is
going to.
The power supply is 24 vac ± 10% at 40 va (50/60 Hz).
1
3. Use field-supplied /4-in. tubing (rated for the applica-
For 33ZCVAVTRM zone controllers, the power require-
ment sizing allows for accessory water valves and for electric
heat contactor(s). Water valves are limited to 15 va on both
two-position and modulating hot water. The electric heat con-
tactor(s) are limited to 10 va (holding) each.
For 33ZCFANTRM zone controllers, the power require-
ment sizing allows for accessory water valves and for the fan
contactor. Water valves are limited to 8 va on both two-position
and modulating hot water. The fan contactor is limited to
11 va (holding).
tion) to connect the high pressure airflow pickup to
barb fitting P1 on the pressure transducer. At the zone
controller, the P1 fitting is on the side with the filter
installed. Be careful to avoid sharp bends in the tubing,
because malfunctions may occur if the tubing is bent
too sharply. Use at least 2 ft of tubing for reading
stability.
4. Use field-supplied 1/4-in. tubing (rated for the applica-
tion) to connect the low pressure airflow pickup to
barb fitting P2 on the pressure transducer. Be careful to
avoid sharp bends in the tubing, because malfunctions
may occur if the tubing is bent too sharply. Use at least
2 feet of tubing for stability.
NOTE: If a water valve or electric heat contactor exceeds
these limits, or external contactors are required for electric
heat, then it is recommended a 60 va transformer be used.
The maximum rating for any output is 20 va.
7
303
8
9
303
O P
C L
C O M
10
303
11
801
12
303
13
801
801
14
24V*
OP
CL
COM
801
15
801
16
17
303
18
→
3. Connect the sensor cable as follows:
Install Sensors
a. Connect one wire from the cable (RED) to the
SPT terminal on the controller. Connect the other
end of the wire to the left terminal on the SEN ter-
minal block of the sensor.
b. Connect another wire from the cable (BLACK) to
the GND terminal on the controller. Connect the
other end of the wire to the remaining open termi-
nal on the SEN terminal block.
c. On 33ZCT56SPT thermostats, connect the re-
maining wire (WHITE/CLR) to the T56 terminal
on the controller. Connect the other end of the
wire to the right most terminal on the SET termi-
nal block.
d. In the control box, install a No. 6 ring type crimp
lug on the shield drain wire. Install this lug under
the mounting screw in the upper right corner of
the controller (just above terminal T1).
SPACE TEMPERATURE SENSOR INSTALLATION —
A space temperature sensor must be installed for each zone
controller. There are three types of SPT sensors available from
Carrier: the 33ZCT55SPT space temperature sensor with timed
override button, the 33ZCT56SPT space temperature sensor
with timed override button and set point adjustment and the
33ZCT58SPT with liquid crystal display. See Fig. 10.
The space temperature sensor is used to measure the build-
ing interior temperature and should be located on an interior
building wall. The sensor wall plate accommodates the NEMA
standard 2 x 4 junction box. The sensor can be mounted direct-
ly on the wall surface if accpectable by local codes.
Do not mount the sensor in drafty locations such as near air
conditioining or heating ducts, over heat sources such as base-
board heaters, radiators, or directly above wall mounted light-
ing dimmers. Do not mount the sensor near a window which
may be opened, near a wall corner, or a door. Sensors mounted
in these areas will have inaccurate and erratic sensor readings.
The sensor should be mounted approximately 5 ft from the
floor, in an area representing the average temperature in the
space. Allow at least 4 ft between the sensor and any corner
and mount the sensor at least 2 ft from an open doorway.
e. On 33ZCT56SPT thermostats install a jumper
between the two center terminals (right SEN and
left SET).
→
Wiring the Space Temperature Sensor (33ZCT58SPT) — The
T58 space temperature sensor is wired differently than other
conventional sensors. The T58 sends all its sensor information
through the CCN bus to the zone controller that is is associated
with. The SPT sensor wiring connections are not used. The T58
sensor does not need to be directly wired to the zone controller.
The T58 sensor may be powered by a separate 24-VAC pow-
er supply or may be connected to the J1 24 VAC power termi-
nals on the zone controller. Be sure that the polarity of the power
supply connections are consistent. For multiple devices wired to
the same power supply, all positive (+) and negative (–) termi-
nals should be wired in the same polarity.
Install the sensor as follows (see Fig. 11):
1. Locate the two Allen type screws at the bottom of the
sensor.
2. Turn the two screws clockwise to release the cover
from the sensor wall mounting plate.
3. Lift the cover from the bottom and then release it from
the top fasteners.
4. Feed the wires from the electrical box through the
opening in the center of the sensor mounting plate.
5. Using two no. 6-32 x 1 mounting screws (provided
with the sensor), secure the sensor to the electrical box.
Wire the T58 sensor to the CCN. Connect the CCN + termi-
nal to the RED signal wire (CCN+). Connect the CCN – termi-
nal to the BLACK signal wire (CCN–). Connect the GND
terminal to the WHITE/CLEAR signal wire (Ground). Refer to
the T58 sensor Installation Instructions for more information
on installing and wiring the sensor.
6. Use 20 gage wire to connect the sensor to the control-
ler. The wire is suitable for distances of up to 500 ft.
Use a three-conductor shielded cable for the sensor
and set point adjustment connections. The standard
CCN communication cable may be used. If the set
point adjustment (slidebar) is not required, then an
unshielded, 18 or 20 gage, two-conductor, twisted pair
cable may be used.
IMPORTANT: The T58 sensor must be configured with
the bus address and device type of the zone controller
before it will broadcast temperature to the zone control-
ler. Refer to the T58 sensor Installation Instructions for
more information on configuring the sensor.
The CCN network service jack requires a separate,
shielded CCN communication cable. Always use sepa-
rate cables for CCN communication and sensor wir-
ing. (Refer to Fig. 12 for wire terminations.)
Wiring the CCN Network Communication Service Jack —
See Fig. 12, 13, and 14. To wire the service jack, perform the
following:
1. Strip back the jacket from the CCN communication
cable(s) for at least 3 inches. Strip 1/4-in. of insulation
from each conductor. Remove the shield and separate
the drain wire from the cable. Twist together all the
shield drain wires and fasten them together using an
closed end crimp lug or a wire nut. Tape off any
exposed bare wire to prevent shorting.
7. Replace the cover by inserting the cover at the top of
the mounting plate first, then swing the cover down
over the lower portion. Rotate the two Allen head
screws counterclockwise until the cover is secured to
the mounting plate and locked in position.
8. For more sensor information, see Table 1 for ther-
mistor resistance vs temperature values.
NOTE: Clean sensor with damp cloth only. Do not use
solvents.
Wiring the Space Temperature Sensor (33ZCT55SPT and
33ZCT56SPT) — To wire the sensor, perform the following
(see Fig. 12 and 13):
2. Connect the CCN + signal wire(s) (RED) to
Terminal 5.
3. Connect the CCN – signal wire(s) (BLACK) to
Terminal 2.
1. Identify which cable is for the sensor wiring.
4. Connect the CCN GND signal wire(s) (WHITE/CLR)
to Terminal 4.
2. Strip back the jacket from the cables for at least
1
3-inches. Strip /4-in. of insulation from each conduc-
tor. Cut the shield and drain wire from the sensor end
of the cable.
801
19
LOW PRESSURE
TUBING
0
1
HF23BJ042
Made in Switzerland
by Belimo Automation
L
H
35 in-lb (4 Nm)
80...110s
L
R
9
2
8
0
0
NEMA2
LISTED
94D5
& U
TEMP. IND.
L
REG. EQUIP.
Class
2
Supply
24VAC/DC
50/60Hz
3VA
2W
5K
COM
1
WIP
2
3
wht
ora
yel blu
blk red
HIGH PRESSURE
TUBING
NOTE: Minimum length of tubing is 2 ft.
Fig. 9 — Airflow Pickup Installation
Warm
Cool
NOTE: Dimensions are in inches.
Fig. 10 — Space Temperature Sensor
Fig. 11 — Space Temperature Sensor and Wall
(P/N 33ZCT56SPT Shown)
Mounted Humidity Sensor Mounting
20
1
2
6
1
2
6
4
5
4
5
3
3
RED(+)
RED(+)
WHT(GND)
WHT(GND)
CCN COM
CCN COM
BLK(-)
BLK(-)
SET
SEN
SEN
SW1
SW1
WHT
(T56)
BLK (GND)
RED (SPT)
BLK (GND)
RED (SPT)
SENSOR WIRING
SENSOR WIRING
JUMPER
TERMINALS
AS SHOWN
Cool
Warm
Fig. 12 — Space Temperature Sensor Wiring
Fig. 13 — Space Temperature Sensor Wiring
(33ZCT55SPT)
(33ZCT56SPT)
Table 1 — Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Return-Air
Temperature Sensor, and Supply-Air Temperature Sensor
TEMP
(C)
TEMP
(F)
RESISTANCE
(Ohms)
–40
–35
–30
–25
–20
–15
–10
–5
–40
–31
–22
–13
–4
335,651
242,195
176,683
130,243
96,974
72,895
55,298
42,315
32,651
25,395
19,903
15,714
12,494
10,000
8,056
5
14
23
0
32
5
41
10
50
15
59
20
68
25
77
30
86
35
95
6,530
40
104
113
122
131
140
149
158
5,325
45
4,367
50
3,601
55
2,985
60
2,487
65
2,082
70
1,752
21
Wiring when distance between zone controller and space temperature sensor is 100 feet or less
CCN COMM BUS
100 FT. MAXIMUM
3 COND COMM CABLE (TYP)
2 COND TWISTED
CABLE OR 3 COND
CABLE (TEMP
SENSOR WIRING) (TYP)
ZONE
AIR TERMINAL
CONTROLLER
UNIT (TYP)
Cool
Warm
Cool
Warm
(TYP)
SPACE
TEMPERATURE
SENSOR
Wiring when distance between zone controller and space temperature sensor is greater than 100 feet
CCN COMM BUS
DISTANCE GREATER
THAN 100 FT.
2 COND TWISTED
CABLE OR 3 COND
CABLE (TEMP
SENSOR WIRING) (TYP)
ZONE
AIR TERMINAL
CONTROLLER
Cool
Warm
UNIT (TYP)
Cool
Warm
(TYP)
SPACE
TEMPERATURE
SENSOR
Fig. 14 — Communication Bus Wiring to Zone Controller
Before wiring the CCN connection, refer to the Connect to
the CCN Communication Bus section on page 26, for commu-
nication bus wiring and cable selection. The cable selected
must be identical to the CCN communication bus wire used for
the entire network.
The other end of the communication bus cable must be con-
nected to the remainder of the CCN communication bus. If the
cable is installed as a T-tap into the bus, the cable length cannot
exceed 100 ft. Wire the CCN service jack of the sensor in a
daisy chain arrangement with other equipment. Refer to the
Connect to the CCN Communication Bus section, page 26, for
more details.
22
PRIMARY AIR TEMPERATURE SENSOR INSTALLA-
TION — A primary air temperature (PAT) sensor is used on a
zone controller which is functioning as a Linkage Coordinator
for a non CCN/Linkage compatible air source. The part num-
ber is 33ZCSENPAT. See Fig. 15.
When used on a zone controller, try to select a zone control-
ler which will allow installation of the PAT sensor in the main
trunk, as close to the air source as possible. See Fig. 16.
If the unit is equipped with electric reheat, ensure that the
sensor is installed at least 2 ft downstream of the electric heater.
See Fig. 17 for the sensor location in this application.
If the unit has an octopus connected directly at the dis-
charge, install the sensor in the octopus. If the unit has an elec-
tric heater, the two foot minimum distance between the sensor
and the heater must be maintained. See Fig. 17 for the sensor
location in this application.
SUPPLY AIR TEMPERATURE (SAT) SENSOR INSTAL-
LATION — On terminals with heat, the SAT sensor is re-
quired. The SAT must be installed in the duct downstream
from the air terminal. The SAT sensor is also sometimes called
a duct temperature (DT) sensor. The part number is
33ZCSENSAT.
Disconnect electrical power before wiring the zone control-
ler. Electrical shock, personal injury, or damage to the zone
controller can result.
The SAT sensor probe is 6 inches in length. The tip of the
probe must not touch the inside of the duct. Use field-supplied
bushings as spacers when mounting the probe in a duct that is
6 in. or less in diameter.
Do not run sensor or relay wires in the same conduit or race-
way with Class 1 AC or DC service wiring. Do not abrade, cut,
or nick the outer jacket of the cable. Do not pull or draw cable
with a force that may harm the physical or electrical properties.
Avoid splices in any control wiring.
If the unit is a cooling only unit, the SAT is not required.
Perform the following steps to connect the SAT sensor to
the zone controller:
1. Locate the opening in the control box. Pass the sensor
probe through the hole.
2. Drill or punch a 1/4-in. hole in the duct downstream of
the unit, at a location that conforms to the require-
ments shown in Fig. 17.
3. Use two field-supplied, self-drilling screws to secure
the sensor probe to the duct. Use field-supplied bush-
ings as spacers when installing the sensor probe in a
duct 6 in. or less in diameter.
Perform the following steps if state or local code requires
the use of conduit, or if your installation requires a cable length
of more than 8 ft:
1. Remove the center knockout from a field-supplied 4 x
2-in. junction box and secure the junction box to the
duct at the location selected for the sensor probe.
1
2. Drill a /2-in. hole in the duct through the opening in
the junction box.
3. Connect a 1/2-in. nominal field-supplied conduit
between the zone controller enclosure and the junction
box.
4. Pass the sensor probe wires through the conduit and
insert the probe in the duct. Use field-supplied bush-
ings as spacers when installing the sensor probe in a
duct 6 in. or less in diameter.
5. Secure the probe to the duct with two field-supplied
self-drilling screws.
Fig. 15 — Primary Air Temperature Sensor
(Part Number 33ZCSENPAT)
6. If you are extending cable length beyond 8 ft, use ple-
num rated, 20 AWG, twisted pair wire.
7. Connect the sensor leads to the zone controller’s wir-
ing harness terminal board at the terminals labeled
SAT and GND.
8. Neatly bundle and secure excess wire.
INDOOR AIR QUALITY SENSOR INSTALLATION
—
→
The indoor air quality (IAQ) sensor accessory monitors carbon
dioxide levels. This information is used to modify the position
of the outdoor air dampers to admit more outdoor air as
required to provide the desired ventilation rate. Two types of
sensors are supplied. The wall sensor can be used to monitor
the conditioned air space; the duct sensor monitors the return
air duct. Both wall and duct sensors use infrared technology to
measure the levels of CO2 present in the air. The wall sensor is
available with or without an LCD readout to display the CO2
level in ppm. See Fig. 18.
The sensor part number is 33ZCSENCO2. To mount the
sensor, refer to the installation instructions shipped with the ac-
cessory kit.
Fig. 16 — Primary Air Temperature Sensor
Installation (Unit Discharge Location)
800
23
UNIT WITH ELECTRIC REHEAT
2 FT. MIN.
AIR
TERMINAL
UNIT
PRIMARY
AIR INLET
SAT
ZC
HEAT
UNIT WITH OCTOPUS
2 FT. MIN.
AIR
TERMINAL
UNIT
PRIMARY
AIR INLET
OCTOPUS
SAT
ZC
HEAT
ZC — Zone Controller
→ Fig. 17 — Supply Air Temperature Probe (Part No. 33ZCSENSAT) Locations
The CO2 sensors (33ZCSENCO2) factory set for a range of
0 to 2000 ppm and a linear voltage output of 0 to 10 vdc.
Figure 19 shows ventilation rates for various CO2 set points
when outside air with a typical CO2 level of 350 ppm is used.
Refer to the instructions supplied with the CO2 sensor for elec-
trical requirements and terminal locations. The zone controller
requires 24 vac 25 va transformer to provide power to the
sensor.
To convert the CO2 sensor into a duct-mounted CO2 sensor,
the duct-mounted aspirator (33ZCASPCO2) will need to be
purchased.
To accurately monitor the quality of the air in the condi-
tioned air space, locate the sensor near the return air grille so it
senses the concentration of CO2 leaving the space. The sensor
should be mounted in a location to avoid direct breath contact.
Do not mount the space sensor in drafty areas such as near
supply ducts, open windows, fans, or over heat sources. Allow
at least 3 ft between the sensor and any corner. Avoid mounting
the sensor where it is influenced by the supply air; the sensor
gives inaccurate readings if the supply air is blown directly
onto the sensor or if the supply air does not have a chance to
mix with the room air before it is drawn into the return air
stream.
To accurately monitor the quality of the air in the return air
duct, locate the sensor at least 6 in. upstream or 15 in. down-
stream of a 90 degree turn in the duct. The downstream loca-
tion is preferred. Mount the sensor in the center of the duct.
5.625
(14.3)
5
(12.7)
IMPORTANT: If the sensor is mounted in the return air
duct, readjust the mixed-air dampers to allow a small
amount of air to flow past the return air damper when-
ever the mixing box is fully open to the outside air. If the
damper is not properly adjusted to provide this mini-
mum airflow, the sensor may not detect the indoor-air
quality during the economizer cycle.
0.25
(0.8)
3.25
(8.3)
1.125
(2.9)
Fig. 18 — Indoor Air Quality (CO2) Sensor
(33ZCSENCO2)
303
24
The sensor must be mounted vertically on the wall. The
Carrier logo should be oriented correctly when the sensor is
properly mounted.
DO NOT mount the sensor in drafty areas such as near heat-
ing or air-conditioning ducts, open windows, fans, or over heat
sources such as baseboard heaters, radiators, or wall-mounted
light dimmers. Sensors mounted in those areas will produce in-
accurate readings.
Avoid corner locations. Allow at least 4 ft between the sen-
sor and any corner. Airflow near corners tends to be reduced,
resulting in erratic sensor readings.
Sensor should be vertically mounted approximately 5 ft up
from the floor, beside the space temperature sensor.
For distances up to 500 feet, use a 3-conductor, 18 or 20
AWG cable. A CCN communication cable can be used,
although the shield is not required. The shield must be removed
from the sensor end of the cable if this cable is used. See
Fig. 22 for wiring details.
The power for the sensor is provided by the control board.
The board provides 24 vdc for the sensor. No additional power
source is required.
Fig. 19 — Ventilation Rated Based on
CO2 Set Point
Indoor Air Quality Sensor Wiring — To wire the sensors
after they are mounted in the conditioned air space and return
air duct, see Fig. 20 and the instructions shipped with the sen-
sors. For each sensor, use two 2-conductor 18 AWG twisted-
pair cables (unshielded) to connect the separate isolated 24 vac
power source to the sensor and to connect the sensor to the con-
trol board terminals. To connect the sensor to the control board,
identify the positive (+) PIN-8 and ground (GND) PIN-7 termi-
nals on the sensor and connect the positive terminal to terminal
RH/IAQ and connect the ground terminal to terminal GND.
To wire the sensor, perform the following:
1. At the sensor, remove 4-in. of jacket from the cable.
1
Strip /4-in. of insulation from each conductor. Route
the cable through the wire clearance opening in the
center of the sensor. See Fig. 22.
HUMIDITY SENSOR (WALL-MOUNTED) INSTALLA-
TION — The accessory space humidity sensor is installed on
an interior wall to measure the relative humidity of the air with-
in the occupied space. See Fig. 21.
The use of a standard 2- x 4-in. electrical box to accommo-
date the wiring is recommended for installation. The sensor can
be mounted directly on the wall, if acceptable by local codes.
If the sensor is installed directly on a wall surface, install the
humidity sensor using 2 screws and 2 hollow wall anchors
(field-supplied); do not overtighten screws. See Fig. 11.
2. Connect the RED wire to the sensor screw terminal
marked (+).
3. Install one lead from the resistor (supplied with the
sensor) and the WHITE wire, into the sensor screw ter-
minal marked (–). After tightening the screw terminal,
test the connection by pulling gently on the resistor
lead.
4. Connect the remaining lead from the resistor to the
BLACK wire and secure using a closed end type crimp
connector or wire nut.
5. Using electrical tape, insulate any exposed resistor
lead to prevent shorting.
6. At the control box, remove the jacket from the cable
and route the RED conductor over to the left side of
the control board. Route the remaining conductors to
the right side of the control board.
Do NOT clean or touch the sensing element with chemical
solvents; they can permanently damage the sensor.
RH/IAQ
GND
21
87
0
1
HF23BJ042
Made in Switzerland
by Belimo Automation
35 in-lb (4 Nm)
80...110s
LR 92800
LINE
24 VAC
NEMA2
VOLTAGE
LISTED
94D5
TEMP. IND. & U
L
SEPARATE
REG. EQUIP.
Class Supply
2
ISOLATED
POWER
24VAC/DC
50/60Hz
3VA
2W
5K
SUPPLY
COM
REQUIRED
(24 VAC, 25 VA
MINIMUM)
WIP
2
3
1
blu ora
yel
red wht
blk
*Do not connect to the same transformer that supplies power to the zone controller.
→ Fig. 20 — Indoor Air Quality Sensor Wiring
25
303
Refer to the service configuration table and set the Heating
Loop parameters as follows:
Proportional Gain = 20.0
Integral Gain = 0.5
Derivative Gain = 0.0
Start Value = 102.0
Also, set the Ducted Heat decision to YES and set the Max-
imum Duct Temperature decision equal to the design (maxi-
mum) boiler water temperature minus 20 degrees, but not
greater than 200 degrees F.
Connect the CCN Communication Bus — The
zone controllers connect to the bus in a daisy chain arrange-
ment. The zone controller may be installed on a primary CCN
bus or on a secondary bus from the primary CCN bus. Con-
necting to a secondary bus is recommended.
At 9,600 baud, the number of controllers is limited to 128
zones maximum, with a limit of 8 systems (Linkage Coordina-
tor configured for at least 2 zones). Bus length may not exceed
4000-ft, with no more than 60 devices on any 1000-ft section.
Optically isolated RS-485 repeaters are required every 1000 ft.
At 19,200 and 38,400 baud, the number of controllers
is limited to 128 maximum, with no limit on the number of
Linkage Coordinators. Bus length may not exceed 1000 ft.
Fig. 21 — Wall Mounted Relative Humidity Sensor
(P/N 33AMSENRHS000)
The first zone controller in a network connects directly to
the bridge and the others are wired sequentially in a daisy chain
fashion. Refer to Fig. 25 for an illustration of CCN Communi-
cation Bus wiring.
The CCN Communication Bus also connects to the zone
controller space temperature sensor. Refer to the Install the
Sensors section for sensor wiring instructions.
7. Strip 1/4-in. of insulation from each conductor
1
and equip each with a /4-in. female quick connect
terminal.
8. Connect the RED wire to terminal +24v on the control
board.
9. Connect the BLACK wire to terminal GND on the
control board.
COMMUNICATION BUS WIRE SPECIFICATIONS —
The Carrier Comfort Network (CCN) Communication Bus
wiring is field-supplied and field-installed. It consists of
shielded three-conductor cable with drain (ground) wire. The
cable selected must be identical to the CCN Communication
Bus wire used for the entire network. See Table 2 for recom-
mended cable.
10. Connect the WHITE/CLEAR wire to terminal
RH/IAQ on the control board.
11. Connect shield to ground (if shielded wire is used).
→
Remote Occupancy Contact — The remote occu-
pancy input (J4 pin 2) has the capability to be connected to a
normally open or normally closed occupancy dry contact. Wire
the dry contact as show in Fig. 23 between J4 Pin 2 and
24 VAC J1 Pin 1. The 24 VAC necessary to supply the
ComfortID™ Controller remote occupancy contact input shall
be supplied using the existing ComfortID Controller.
Table 2 — Recommended Cables
MANUFACTURER
Alpha
American
Belden
CABLE PART NO.
2413 or 5463
A22503
Connect the Outputs — Wire the zone controller’s
outputs (fan, staged heat, valves) as shown in the applicable
wiring diagrams in Fig. 8A-J.
8772
Columbia
02525
NOTE: Conductors and drain wire must be at least 20 AWG
(American Wire Gage), stranded, and tinned copper. Individual con-
ductors must be insulated with PVC, PVC/nylon, vinyl, teflon, or
polyethylene. An aluminum/polyester 100% foil shield and an outer
jacket of PVC, PVC/nylon, chrome vinyl, or Teflon with a minimum
operating temperature range of –20° C to 60° C is required.
Modulating Baseboard Hydronic Heating — In-
stall the water valve on the leaving water end of the baseboad
heater. See Fig. 24. Observe the fluid flow direction when
mounting the valve. Be sure to properly heat sink the valve and
direct the flame away from the actuator and valve body when
sweating the valve connections. Install the leaving water tem-
perature sensor (33ZCSENCHG) on the hydronic heating coil
as shown. The sensor accommodates nominal copper pipe
from 1/2 to 1-in. (OD sizes from 5/8 to 1.125 in.). It should be
secured to the pipe with the clamp supplied. If piping is larger
than 1-in. nominal size, a field-supplied clamp must be used.
Use fiberglass pipe insulation to insulate the sensor assembly.
Refer to Fig. 8C and 8H to wire the modulating water valve
and the sensor to the zone controller. Connect the leaving water
temperature sensor to the controller using the wiring connec-
tions shown for the SAT sensor. (NOTE: The leaving water
temperature sensor replaces the SAT sensor in this application.)
Use 18 or 20 AWG wire for all connections. The water valve
actuator housing may be used as a junction box if the leaving
water temperature sensor cable is not long enough and the sen-
sor cable must be extended to reach the controller.
CONNECTION TO THE COMMUNICATION BUS
1. Strip the ends of the red, white, and black conductors
of the communication bus cable.
2. Connect one end of the communication bus cable to
the bridge communication port labeled COMM2 (if
connecting on a secondary bus).
When connecting the communication bus cable, a
color code system for the entire network is recom-
mended to simplify installation and checkout. See
Table 3 for the recommended color code.
Table 3 — Color Code Recommendations
CCN BUS WIRE
COLOR
PLUG PIN
NUMBER
SIGNAL TYPE
+
Red
White
Black
1
2
3
Ground
–
For modulating hydronic heating applications, the default
configuration must be changed to properly control the valve.
801
26
3. Connect the other end of the communication bus cable
to the terminal block labeled CCN in the zone control-
ler of the first air terminal. Following the color code
in Table 3, connect the Red (+) wire to Terminal 1.
Connect the White (ground) wire to Terminal 2. Con-
nect the Black (–) wire to Terminal 3.
4. Connect additional zone controllers in a daisy chain
fashion, following the color coded wiring scheme in
Table 3. Refer to Fig. 25.
NOTE: The communication bus drain wires (shield) must
be tied together at each zone controller. If the communica-
tion bus is entirely within one building, the resulting contin-
uous shield must be connected to ground at only one single
point. If the communication bus cable exits from one build-
ing and enters another building, connect the shields to
ground at a lightning suppressor in each building where the
cable enters or exits (one point only).
3 CONDUCTOR
20 AWG CABLE
RED
+
-
WHITE
BLACK
499
RESISTOR
(SUPPLIED
W/SENSOR)
SHIELD
(IF USED)
HUMIDITY SENSOR
RH/IAQ
GND
+24V
0
1
HF23BJ042
Made in Switzerland
by Belimo Automation
35 in-lb (4 Nm)
80...110s
LR 92800
NEMA2
LISTED
94D5
TEMP. IND. & U
L
REG. EQUIP.
Class Supply
2
24VAC/DC
50/60Hz
3VA
2W
5K
COM
WIP
2
3
1
blk
blu ora
yel
red wht
Fig. 22 — Humidity Sensor Wiring
27
303
28
33ZCSENCHG
(SENSOR)
FLOW
1/2” TUBE
3/4” TUBE
1” TUBE
→ Fig. 24 — Typical Water Valve and Sensor Installation
1000 FT. MAXIMUM
DRAIN WIRE (TYP)
BLK (TYP)
WHT (TYP)
RED (TYP)
GND
1
2
3
4
1
2
3
1
2
3
1
2
3
1
2
3
CCN
CCN
CCN
CCN
COMM 2
ZC
(TYP)
AIR TERMINAL
UNIT (TYP)
BRIDGE
(RECOMMENDED)
LEGEND
CCN
ZC
— Carrier Comfort Network
— Zone Controller
Fig. 25 — Communication Bus Wiring
3. Check that all air duct connections are tight.
START-UP
4. At the air terminals, check fan and system controls for
proper operation. Verify that actuator screws are prop-
erly tightened.
Use the Carrier network communication software to start up
and configure the zone controller.
All set-up and set point configurations are factory-set and
field-adjustable.
5. At the air terminals, check electrical system and con-
nections of any optional electric reheat coil. If hot
water reheat is used, check piping and valves against
job drawings.
6. At the air terminals, make sure that all balancing
dampers at box outlets are in the fully open position.
7. If using an air handler with field-installed controls,
make sure controls and sensors have been installed and
wired per manufacturer installation instructions.
8. At air handlers, verify that the motor starter and, if
applicable, the Hand/Off/Auto (HOA) switch are
installed and wired.
Changes can be made using the ComfortWORKS® soft-
ware, ComfortVIEW™ software, or Network Service Tool.
The Network Service Tool is a portable interface device that al-
lows the user to change system set-up and set points from a
zone sensor or terminal control module. During start-up, the
Carrier software can also be used to verify communication
with each zone controller.
For specific operating instructions, refer to the literature
provided with the software.
Perform System Check-Out
NOTE: The HOA switch must be in the Off position.
1. Check correctness and tightness of all power and com-
munication connections.
2. Check that all air terminals, ductwork, and zone con-
trollers are properly installed and set according to
installation instructions and job requirements.
29
800
9. Check to be sure the area around the air handler(s) is
clear of construction dirt and debris.
elliptical damper inlet is supplied, then enter the inlet
size in square inches in the Inlet Area decision.
10. Check that final filters are installed in the air han-
dler(s). Dust and debris can adversely affect system
operation.
11. Verify that the zone controller and the air handler con-
trols are properly connected to the CCN bus.
5. If the terminal damper closes in the CW direction, then
no adjustment is required. Otherwise, locate the
damper direction configuration decision (CW Rota-
tion) and toggle the value to OPEN by using the space
bar. This configuration decision is also located on the
Terminal Service Configuration screen.
6. After entering the area and rotation direction, verify
operation of the damper. From the service tool Diag-
nostic, Maintenance Screen, select the Zone Air
Balance/Commissioning Table and force the Commis-
sioning Mode point to Enable. Then select the
Damper/Transducer Cal point and force this point to
Enable. The controller automatically tests the actuator
by fully closing the damper.
Before starting the air source fan, make sure that dampers
at the system’s air terminals are not fully closed. Starting
the fan with dampers closed will result in damage to the
system ductwork.
12. Remember to utilize good duct design and to provide
sufficient straight duct at the inlet of the box. A mini-
mum of three times the inlet size is recommended.
It checks the fully closed position to determine if the
control was properly mounted. It then opens the
damper. The control scales the actual actuator travel
range used to a 0 to 100% open value. Finally the con-
trol will close the damper, test, and zero the pressure
transducer. When completed, the control automatically
removes the force from the Damper/Transducer Cal
point. If a failure occurs at any point during the testing,
the Auto-Calibration point at the bottom of the screen
will indicate ALARM and the test will be aborted.
Network Addressing — Use the following method
when all the zone controllers are installed and powered, and the
SPT sensors are wired and functioning properly. This method
can be used if no addresses have been set previously. The ad-
dress of an individual zone controller may be set by using the
address search function on the Service Tool software when it is
directly connected to the service port of the zone controller and
the CCN bus is disconnected. This is the standard method of
setting the address.
Addresses may also be set using the Service Tool Address
Search Function if the zone controller is isolated from the CCN
bus.
Each zone controller will default to an address of 0, 140
when its application software is initially loaded. Since multiple
controllers will be on the same bus, a unique address must be
assigned to each controller before the system can operate prop-
erly. The assignment of controller addresses will be performed
through software by using the Address Search function of the
Network Service Tool, as follows:
1. The software recognizes that the Zone Controller's ad-
dress, stored in the zone controller memory, has not been
written yet (this will be true when the unit is first powered
up on the job, or after a jumper-initiated reset).
2. Press the override button on the SPT (terminals J4-14 and
J4-12 are shorted) for 1 to 10 seconds.
3. The zone controller address changes from 0, 140 to 239,
239 for a period of 15 minutes.
4. Use Network Service Tool to change the address from
239, 239 to a valid system address within 15 minutes.
7. The actuator stroke has now been calibrated for the
proper rotation.
Airflow Check — After the damper transducer calibration
has been performed, the terminal is ready for an airflow check.
To perform airflow check, make sure Terminal Type, Primary
Inlet Size, and Probe Multiplier settings on the Terminal Ser-
vice Configuration screen are configured. If all of the terminals
were installed with the dampers open, it is acceptable to start
the fan at this time. If it becomes difficult for the air source to
provide the necessary static pressure for airflow testing, it may
be necessary to calibrate the damper transducer for a majority
of terminals and check temperatures and set points to be sure
most will be controlling to less than maximum CFM when the
air source is started.
When the system fan is running and the static pressure is
fairly stable access the Zone Air Balance/Commissioning table
and force the Commissioning Mode Point to Enable. The sys-
tem is now ready to enable maximum CFM and check if the
airflow controls correctly with the maximum CFM set point.
Read the Zone Air Balance/Commissioning table section on
page 47 which describes the Zone Air Balance/Commissioning
table and what adjustments can be made from this screen. If the
maximum airflow function is working properly, the user can
stop here and leave the rest of the airflow calibration for the air
balance contractor.
→
NOTE: If the address is not changed from 239, 239 to
a valid system address within 15 minutes, the control-
ler will revert to address 0, 140 and use of the override
button will cause the address function to repeat. The
operator MUST actively set the address even if the
final desired address is 0, 140.
If working with the air balance contractor, proceed with the
minimum airflow calibration at this time. If this terminal is fan
powered or the terminal was installed with heat, and the heat
configuration was already performed, continue with the fan
and heat test while the Zone Air Balance/Commissioning table
is still being displayed.
Initial Operation and Test — Perform the following
procedure:
1. Apply 24 vac power to the control.
2. Connect the service tool to the phone jack service port
of the controller.
3. Using the service tool, upload the controller from
address assigned in Network Addressing section
above.
4. From the Terminal Service Configuration screen,
properly configure the damper type and inlet size. If a
round inlet is used, then enter the size directly in the
Inlet Diameter decision. If a square, rectangular, or
Fan and Heat Configuration and Test — Per-
form the following procedure to configure and test the fan and
heat:
1. Display the Terminal Service Configuration screen to
make sure the proper Terminal Type and Heat Type are
configured. See the Configuration section to answer
questions about the individual configurations.
2. From the Diagnostics Maintenance Screen select the
Zone Air Balance/Commissioning table.
3. Force the Commissioning Mode to Enable.
501
30
4. If the terminal is a parallel or series powered fan box,
force the Fan Override to Enable. If the damper is open
it may have to be repositioned to the proper position
depending on the box type. Damper percent change
will be displayed. After the damper is positioned cor-
rectly, the fan relay should energize and the fan should
run for a few seconds.
5. Make sure the fan runs and the Fan Override decision
returns to disabled to ensure the fan is wired correctly
for proper operation.
6. Force the Heating Override to Enable. If the unit is a
single duct unit, this must be done with the primary
terminal at reheat set point. The damper will modulate
to maintain the terminal reheat CFM. The heat outputs
will be commanded to provide maximum heat. If the
unit is a fan powered terminal, the fan must be on.
TERMINAL TYPE — Terminal type is the confirmation of
the terminal type configuration in the SERVCONF Service
Config table.
Terminal Type: Display Units
Default value
ASCII
SINGLDUCT
SINGLDUCT, PAR
Display Range
FAN, SER FAN, DUALDUCT
Network Access Read only
→
CONTROLLING SETPOINT — Controlling Setpoint will
display either the heating master reference or the cooling mas-
ter reference depending upon what mode the terminal is in. The
display will default to the heating master reference and display
the last controlling master reference when in neither heating
nor cooling.
Controlling
Setpoint
Display Units
Default Value:
F (C)
NOTE: The CFM settings can be found under service con-
figuration in the table AIRFLOW.
–40
Display Range: –40 to 245
Network Access: Read only
CONFIGURATION
SPACE TEMPERATURE — Space temperature from 10 kΩ
thermistor (Type III) located in the space.
The following sections describe the computer configuration
screens which are used to configure the zone controller. The
screens shown may be displayed differently when using differ-
ent Carrier software.
Space
Temperature:
Display Units
Default Value
Display Range
F (C)
-40.0
-40.0 to 245.0
Network Access Read/Write
Points Display Screen — The Points Display screen
allows the user to view the status of the air terminal controller
points. See Table 4.
TERMINAL MODE — The terminal mode is determined by
the equipment mode as reported by linkage and space require-
ments determined by space temperature and set points. The
ZEROCAL and COMMISS modes are the result of the activat-
ing the commissioning maintenance table to perform terminal
testing and commissioning.
PRIMARY AIRFLOW — Volume of primary air calculated
for pressure reading from the velocity pressure pickup probe
located in the input collar of the air terminal.
Primary Airflow: Display Units
Default Value
cfm
0
Display Range
0 to 9999
Network Access Read/Write
PRIMARY DAMPER POSITION — Damper position per-
cent range of rotation determined by the transducer calibration
procedure. The zone controller is designed be used on dampers
with any range of rotation.
Terminal Mode: Display Units
Default Value
ASCII
COOL
Display Range
HEAT, COOL, VENT,
FAN AND VENT, DEHUMID, WARM-
UP, REHEAT, PRESSURE, EVAC, OFF,
ZEROCAL, COMMISS
Primary Damper
Position:
Display Units
Default Value
Display Range
% open
0
Network Access Read only
0 to 100
Network Access Read only
→ Table 4 — Points Display Screen
DESCRIPTION
Terminal Mode
Terminal Type
Controlling Setpoint
Space Temperature
Primary Airflow
Primary Damper Position
Supply Air Temperature
Local Heating Capacity
Terminal Fan
DEFAULT
COOL
SINGLDUCT
-40.0 F
-40.0 F
0 cfm
POINT NAME
MODE
TYPE
CNTSP
SPT
PRIFLO
DMPPOS
SAT
100 %
0.0 F
0 %
HCAP
FAN
Off
Relative Humidity
Air Quality (ppm)
Secondary Airflow
Primary Air Temperature
Heat
0 % RH
0 ppm
0 cfm
0.0 F
Dsable
RH
AQ
SECFLO
PATEMP
HEAT
801
31
SUPPLY AIR TEMPERATURE — Temperature of the air
leaving the zone controller downstream of any ducted heat
source. Measured by a 10 kΩ thermistor (Type III). This tem-
perature is used to control the maximum discharge air to the
space when local heat is active. The sensor is not required or
recommended for cooling only terminals. If supply air temper-
ature display is required by specification, on a cooling only
box, a heat type other than zero must be configured. This
will have no adverse affect on the operation of a cooling only
terminal.
Air Quality (ppm):Display units
None shown (parts per
million implied)
0
Default Value
Display range
Network Access Read/Write
0 to 5000
SECONDARY AIRFLOW — Airflow reading from the sec-
ondary pressure transducer, supplied with the secondary actua-
tor, intended for dual duct and pressure control applications.
Secondary
Airflow:
Display Units
Default Value
Display Range
cfm
0
0 to 9999
Supply
Air Temperature: Display Units
Default Value
F (C)
0.0
Network Access Read/Write
Display Range
-40.0 to 245.0
PRIMARY AIR TEMPERATURE — Primary air tempera-
ture from sensor (10 kΩ, Type III), located in main trunk of
ductwork for supply air provided by the air-handling equip-
ment. Used for linkage coordination.
Network Access Read/Write
LOCAL HEATING CAPACITY — When local heat at the
terminal is enabled the percent of heat being delivered is deter-
mined by the following formula for modulating (floating point)
type heat:
% Capacity = [(SAT - SPT)/(Maximum Duct Temp – SPT )]
The percent of heat delivered is determined by the follow-
ing for two-position hot water or staged electric heat:
Primary Air
Temperature:
Display Units
Default Value
Display Range
F (C)
0.0
-40.0 to 245.0
Network Access Read/Write
% Output Capacity = (# of active stages/Total stages) * 100
Local Heating
HEAT ENABLE/DISABLE — Provides enable/disable
function for local heat at the terminal. When enabled the Local
heat capacity function will run to operate the terminal heat.
Capacity:
Display Units
Default Value
Display range
% output capacity
0
Heat Display:
Display Units
Default Value
Display Range
Discrete ASCII
Dsable
0 to 100
Network Access Read only
Dsabe/Enable
Network Access Read/Write
TERMINAL FAN — The commanded output for the terminal
fan on a fan powered terminal.
Modify Controller Configuration — In Service
Tool software, select the desired zone controller and access the
Modify Controller Configuration Menu screen. This configura-
tion screen is also displayed under CONFIGURE when using
ComfortWORKS® and ComfortVIEW™ software.
Terminal Fan:
Display Units
Default Value
Display Range
Discrete ASCII
Off
Off/On
Network Access Read/Write
RELATIVE HUMIDITY — Space Relative Humidity read-
ing from the optional relative humidity sensor. Used by Hu-
midity control function if configured.
The Modify Controller Configuration Menu screen is used
to access the Alarm Limit Configuration screen, Controller
Identification screen, Holiday Configuration screen, Linkage
Coordinator Configuration screen, Occupancy Configuration
screen, and Set Point screen.
ALARM LIMIT CONFIGURATION SCREEN — The
Alarm Limit Configuration screen is used to configure the
alarm settings for the zone controller. See Table 5.
Relative
Humidity:
Display Units
Default Value
Display Range
% RH
0
0 to 100
Network Access Read/Write
AIR QUALITY — Indoor air quality reading from a CO2 sen-
sor installed in the space. Used by Air Quality control function
if configured.
→ Table 5 — Alarm Limit Configuration Screen
DESCRIPTION
Alarm Routing Control
Re-Alarm Time
DEFAULT
00000000
0
POINT NAME
ROUTING
RETIME
SPT Occupied Hysteresis
5.0 F
SPTHYS
Unoccupied SPT
Low Limit
High Limit
40 F
99 F
LOWLIM
HIGHLIM
Occupied RH
Low Limit
High Limit
10 %
99 %
LOWLIM
HIGHLIM
Unoccupied RH
Low Limit
High Limit
0 %
100 %
LOWLIM
HIGHLIM
Air Quality
Low Limit
High limit
250 ppm
1200 ppm
LOWLIM
HIGHLIM
High Velocity Pressure
1.2 in. wg
HIGHVP
32
801
→
→
Alarm Routing Control — This decision indicates which
CCN system software or devices will receive and process
alarms sent by the zone controller. This decision consists of
eight digits each can be set to zero or one. A setting of 1 indi-
cates alarms should be sent to this device. A setting of zero dis-
ables alarm processing for that device. Currently the corre-
sponding digits are configured for the following devices: first
digit - user interface software; second digit - autodial gateway
or Telink; fourth digit - alarm printer interface module; digits 3,
and 5 through 8 - unused.
Unoccupied Humidity Low Limit — This configuration de-
fines the lowest humidity that the unoccupied space can be
before an alarm is generated.
Unoccupied
Humidity Low
Limit:
Units
% humidity
0 to 100%
0
Range
Default Value
Unoccupied Humidity High Limit — This configuration de-
fines the highest humidity that the unoccupied space can be
before an alarm is genenerated.
Alarm Routing
Control:
Range
Default Value
00000000 to 11111111
00000000
Unoccupied
Humidity High
Limit:
Re-Alarm Time — This decision is used to configure the num-
ber of minutes the zone controller will wait before an alarm
condition which has not been corrected will be re-transmitted
on the communications network. Re-alarming of an alarm con-
dition will continue until the condition no longer exists.
Units
% humidity
0 to 100%
100
Range
Default Value
Indoor Air Quality Low Limit — This configuration defines
the lowest CO2 level that the occupied space can have before
an alarm is generated.
Alarm Re-Alarm
Time:
Units
Minutes
0 to 1440
0 (Disabled)
Indoor Air Quality
Low Limit:
Range
Units
PPM (implied)
0 to 5000
250
Default Value
Range
Space Temperature Occupied Hysteresis — This configura-
tion defines the range above the occupied high set point and be-
low the occupied low set point that the space temperature must
exceed for an alarm condition to exist during occupied hours.
Default Value
Indoor Air Quality High Limit — This configuration defines
the highest CO2 level that the occupied space can have before
an alarm is generated.
Space Temperature
Occupied
Indoor Air Quality
High Limit:
Units
PPM
0 to 5000 PPM
1200
Hysteresis:
Units
delta F (delta C)
0.0 to 99.9
5.0
Range
Range
Default Value
Default Value
High Velocity Pressure — This configuration defines the
maximum velocity pressure the zone controller should see at
the pickup mounted in the inlet of the terminal. This is also
used by the zone controller to calculate the maximum CFM the
terminal will be able to control to using the terminal inlet size
configured in the service configuration table.
Unoccupied Space Temperature Low Limit — This configu-
ration defines the lowest temperature that the unoccupied space
can be before an alarm is generated.
Unoccupied Space
Temperature
Low Limit:
Units
F (C)
0 to 255 F
40
High Velocity
Pressure:
Range
Units
in. wg
0.0 to 2.0 in. wg
1.2
Default Value
Range
Unoccupied Space Temperature High Limit — This configu-
ration defines the highest temperature that the unoccupied
space can be before an alarm is generated.
Default Value
CONTROLLER IDENTIFICATION SCREEN — The con-
troller identification screen displays the device information for
the zone controller.
HOLIDAY CONFIGURATION SCREENS — The zone
controller has configuration screens for up to 12 different holi-
day schedules. Highlight the holiday name on the screen and
press enter to configure the holiday schedule. A separate screen
is used to ENTER the Holiday schedule.
Unoccupied Space
Temperature
High Limit:
Units
F (C)
0 to 255 F
99
Range
Default Value
Occupied Humidity Low Limit — This configuration defines
the lowest humidity that the occupied space can be before an
alarm is generated.
Start Month — The start month is the month in which the hol-
iday starts. Months are represented by numbers with 1 repre-
senting January, 2 February, up to 12.
Occupied Humidity
Low Limit:
Units
% humidity
0 to 100%
10
Start Month:
Range
Default Value
1 to 12
1
Range
Default Value
Start Day — The start day is the day on which the holiday will
start.
Occupied Humidity High Limit — This configuration de-
fines the highest humidity that the occupied space can be be-
fore an alarm is generated.
Start Day:
Range
Default Value
1 to 31
1
Occupied Humidity
Duration — Length of time, in days, that the holiday will last.
High Limit:
Units
% humidity
0 to 100%
99
Range
Default Value
Duration:
Range
Default Value
0 to 365
0
33
801
LINKAGE
COORDINATOR
CONFIGURATION
Air Source Bus and Element Number — The Air Source Bus
and Element Number configurations define the address of the
air source providing conditioned air to the zones controlled by
the linkage coordinator. If the address is left at zero, the Link-
age coordinator will look for a primary air sensor to determine
the equipment mode. If no primary air sensor is installed, or the
sensor fails, the Linkage Coordinator will default the air source
mode to Cooling.
SCREEN — The Linkage Coordinator Configuration screen
allows the user to set the linkage coordinator configuration set-
tings. See Table 6.
Linkage Master Zone — This decision defines if the zone
controller will function as a Linkage Coordinator (Linkage
Master) for itself and other zones.
If the zone controller is to use a supply air sensor for stand-
alone operation, this configuration must be configured to No
and the number of Zones to 1.
If the zone controller will use its primary air sensor to deter-
mine the air handler mode for a number of zone controllers,
configure this configuration to Yes, input the number of zones,
and leave the air source decisions at the default values of zero.
Air Source
Bus Number:
Range
Default Value
0 to 240
0
Air Source
Element Number:
0 to 240
0
Default Value
If this zone controller will communicate linkage informa-
tion with an air source, configure this configuration to Yes. The
number of zones must be configured and the address of the air
source entered.
Static Pressure Reset — Air systems designed with diversity
(airflow required with all zones at maximum cfm exceeds de-
sign capacity of air handler) are capable of providing enough
CFM to all zones on days when conditions meet the demand at
design static. At other times, the air system does not require the
design static to meet the load requirements.
Static pressure reset allows the static pressure set point on
the air source to be reset whenever the system load is reduced
from the design maximum. The zone controller will then moni-
tor damper positions. When the system dampers are modulat-
ing at lower damper positions due to the higher static, the static
pressure will then be reset to a lower value allowing the damp-
ers to open more. This allows the system to automatically make
adjustments to the static pressure and optimize performance of
the fan which will reduce energy consumption.
The linkage coordinator monitors the position of all damp-
ers in its system. When any zone’s maximum damper position
reaches the Reset Maximum Damper Position, the linkage co-
ordinator will reduce the value of the reset variable.
The Maximum Damper Position and Static Pressure Reset
values can be viewed on the Linkage maintenance screen.
Linkage
Master Zone:
Range
Default Value
Yes/No
No
Number of Zones — This decision defines the number of zone
controllers (including itself) for the Linkage Coordinator to
scan and include as part of the average temperature, set points,
and occupancy information to the air source. The address of the
zone controller functioning as a Linkage Coordinator must be
larger than the number of zones configured. The zone control-
ler will scan addresses less than its own, including information
for as many zones as are configured. Other zone controller con-
figured as linkage coordinators will also be included, so it is
possible to have zones scanned by more than one linkage coor-
dinator. Therefore care must be taken in addressing to prevent
overlapping systems, unless overlapping systems is necessary.
In large buildings the use of bridges and multiple busses is rec-
ommended to improve communication and provide system
differentiation.
NOTE: The static pressure set point configured in the air
source should be the desired maximum (zero reset) static
pressure.
Number of
Zones:
Range
Default Value
1 to 128
1
→ Table 6 — Linkage Coordinator Configuration Screen
DESCRIPTION
DEFAULT
POINT NAME
Zone Linkage
Linkage Master Zone
Number of Zones
Air Source Bus Number
Air Source Element Number
Static Pressure Reset
No
1
0
MZENA
NSYSTZ
ASBUSN
ASELEMN
0
Reset Minimum Damper Position
Reset Maximum Damper Position
Maximum Reset
SP Reset Variable Name
CCN Linkage Data
50 %
80 %
0.0 in. wg
(blank)
MINDP
MAXDP
SPMAX
SPRVAR
CCN Variable Name
CCN Function Configuration
Data Transfer Rate
(blank)
3
10 minutes
(blank)
CCNVAR
CCNFUNC
DATARATE
CCNOUTP
DESTBUSN
DESTELEN
CCN Output Point
Destination Bus Number
Destination Element Number
Temperature Sensor Grouping
Temperature Sensor Mode
Temperature Sensor Configuration
Broadcast Device ID
0
0
1
1
1
BRD_RECV
SENSCFG
BRDDEVID
801
34
Reset Minimum
Damper Position: Units
Range
→ Temp Sensor Grouping — Each ComfortID™ controller has
the capability to broadcast the associated space temperature
sensor’s data or listen to another controller’s sensor data over
the network. All controllers sharing the same sensor must be
installed on the same CCN bus.
%
0 to 99
50
Default Value
Reset Maximum
Damper Position: Units
Range
%
0 to 99
80
in. wg
0.0 to 5.0
0.0
There are three configuration decisions that must be config-
ured in order to share sensors. The Temp Sensor Mode is used
to specify if a controller will use its own local sensor, broadcast
its local sensor, or listed to another controller’s sensor broad-
cast. The Temp Sensor Config is used to specify if the control-
ler is sharging the space temperature information only or the
space temperature and temperature offset slidebar information.
The Broadcast Device ID decision is used to specify which
controller number a zone will listen for when configured to
receive another controller’s broadcast.
Default Value
Maximum Reset: Units
Range
Default Value
Static Pressure Reset
Variable Name: Units
Range
ASCII (8 characters)
A-Z,0-9
*
Default Value
Temp Sensor
Mode:
*To use Static Pressure Reset with a Comfort System
AirManager, configure the variable name to SPRESET.
Units
Range
none
1 = Local Sensor,
Currently, to make use of the static reset information, a cus-
tom program must be written in a Comfort Controller to read
the reset value and change the set point of the static pressure
control in the air source. Use this configuration to create a vari-
able name (Static Pressure Reset Value). See the application
manual for information about creating this custom program.
The Comfort System AirManager™ control has an internal
SPRESET variable which functions to accept the static pres-
sure reset value from the linkage coordinator (refer to the Air
Manager manual for configuration setup).
CCN Linkage Data — A zone controller configured as a
Linkage master has the ability to poll its slaves and collect the
high, low or average value of any variable within its slaves.
Once the high, low or average is determined, the master can
then transfer that value to a configured bus number, element
number and point name. Typically this feature is used to deter-
mine a system’s highest indoor air quality reading.
In order to utilize this feature the CCN Variable Name being
collected from the slaves must be supplied. The data transfer
rate must be specified and whether the high, low, or average
value is being determined. After the value has been deter-
mined, a valid point name and CCN address to transfer the
value to must be entered.
2 = Broadcast, 3 = Listen
1
Default Value
Temp Sensor
Config:
Units
none
Range
1 = SPT, 2 = SPT and
offset
1
Default Value
Broadcast
Device ID:
Units
None
1-239
1
Range
→
Default Value
OCCUPANCY CONFIGURATION SCREEN — The Oc-
cupancy Configuration screen is used to set the occupied
schedule. See Table 7.
Manual Override Hours — The Manual Override Hours deci-
sion is used to command a timed override by entering the num-
ber of hours the override will be in effect.
If the occupancy schedule is occupied when this number is
downloaded, the current occupancy period will be extended by
the number of hours downloaded.
If the current occupancy period is unoccupied when the oc-
cupancy override is initiated, the mode will change to occupied
for the duration of the number of hours downloaded.
If the occupancy override will end after the start of the next
occupancy period, the mode will transition from occupancy
override to occupied without becoming unoccupied, and the
occupancy override timer will be reset.
An active occupancy override or a pending occupancy over-
ride may be canceled by downloading a zero to this configura-
tion. Once a number other than zero has been downloaded to
this configuration any subsequent downloads of any value oth-
er than zero will be ignored by the zone controller.
CCN Variable
Name:
Units
Range
ASCII (8 Characters)
A-Z, 0-9
(blank)
Default Value
CCN Function
Config:
Units
Range
none
0 = none, 1 = average,
2 = low, 3 = high
3
Default Value
Data Transfer
Rate:
Units
Range
minutes
1-15
10
Manual Override
Hours:
Units
hours
0 to 4
0
Default Value
Range
Default Value
CCN Output
Point:
Units
Range
ASCII (8 Characters)
A-Z, 0-9
(blank)
Occupancy Scheduling — For flexibility of scheduling, the
occupancy programming is broken into eight separate periods.
For each period the scheduling, the active days of the week,
occupied start time, and occupied stop time needs to be
configured.
Day of Week — This configuration consists of eight fields
corresponding to the seven days of the week and a holiday
field in the following order: Monday, Tuesday, Wednesday,
Thursday, Friday, Saturday, Sunday, Holiday. A separate con-
figuration screen is used.
Default Value
Destination Bus
Number:
Units
Range
none
0-239
0
Default Value
Destination
Element Number: Units
Range
none
0-239 (0 = disabled)
0
Default Value
35
801
Table 7 — Occupancy Schedule Information Screen
DESCRIPTION
Manual Override Hours
DEFAULT
0
POINT NAME
OVRD
Period 1: Day of Week
Period 1: Occupied From
Period 1: Occupied To
Period 2: Day of Week
Period 2: Occupied From
Period 2: Occupied To
Period 3: Day of Week
Period 3: Occupied From
Period 3: Occupied To
Period 4: Day of Week
Period 4: Occupied From
Period 4: Occupied To
Period 5: Day of Week
Period 5: Occupied From
Period 5: Occupied To
Period 6: Day of Week
Period 6: Occupied From
Period 6: Occupied To
Period 7: Day of Week
Period 7: Occupied From
Period 7: Occupied To
Period 8: Day of Week
Period 8: Occupied From
Period 8: Occupied To
11111111
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
00000000
00:00
24:00
DOW1
OCC1
UNOCC1
DOW2
OCC2
UNOCC2
DOW3
OCC3
UNOCC3
DOW4
OCC4
UNOCC4
DOW5
OCC5
UNOCC5
DOW6
OCC6
UNOCC6
DOW7
OCC7
UNOCC7
DOW8
OCC8
UNOCC8
If a 1 is configured in the corresponding place for a certain
day of the week, the related “Occupied from” and “Occupied
to” times for that period will take effect on that day of the
week. If a 1 is placed in the holiday field the related times will
take effect on a day configured as a holiday. A zero means the
schedule period will not apply to that day.
Occupied Cool — The Occupied Cool set point is used to con-
figure the cooling set point for the zone controller during Occu-
pied mode.
Occupied Cool: Units
Range
F (C)
45.0 to 99.9
74.0
Default Value
Period (1-8):
Day of Week:
Unoccupied Heat — The Unoccupied Heat set point is used to
configure the heating set point for the zone controller during
Unoccupied mode.
Range
0 or 1
Default Values
11111111 for period 1,
00000000 for periods 2-8.
Unoccupied Heat: Units
Range
F (C)
40.0 to 90.0
55.0
Occupied From — This field is used to configure the hour and
minute, in military time, when the mode for the zone controller
becomes occupied.
Default Value
Unoccupied Cool — The Unoccupied Cool set point is used to
configure the cooling set point for the zone controller during
Unoccupied mode.
Period (1-8):
Occupied from: Units
Range
Hours: Minutes
00:00 to 24:00
00:00
Unoccupied Cool: Units
Range
F (C)
45.0 to 99.9
90.0
Default Value
Occupied To — This field is used to configure the hour and
minute, in military time, when the occupied mode for the zone
controller becomes unoccupied.
Default Value
→
→
Occupied High Humidity — The Occupied High Humidity
set point is used to configure the humidity set point for the zone
controller if optional zone humidity control (dehumidification)
is used.
Period (1-8):
Occupied from: Units
Range
Hours: Minutes
00:00 to 24:00
24:00
Occupied High Humidity: Units
Range
% Humidity
0.0 to 100.0
Default Value
SET POINT SCREEN — The Set Point screen is used to
modify the zone controller set points. See Table 8.
Occupied Heat — The Occupied Heat set point is used to con-
figure the heating set point for the zone controller during Occu-
pied mode.
Default Value 60.0
Unoccupied High Humidity — The unoccupied high humidi-
ty set point is used to configure the unoccupied humidity set
point for the zone controller if optional zone humidity control
(dehumidification) is used.
Occupied Heat: Units
Range
F (C)
40.0 to 90.0
70.0
Unoccupied
High Humidity: Units
Range
% humidity
0 to 100
100
Default Value
Default Value
1001
36
Air Quality — The Air Quality set point is used to configure
the IAQ set point for the zone controller if optional controlled
ventilation support is used.
Cool Minimum (PI) — This configuration is the minimum
airflow the terminal will control to when the equipment is in
Cooling mode (or Fan Only mode) or free cooling. The space
requirements for cooling must be at a minimum, or the terminal
is a fan powered terminal and the space requirements are for
heat.
Air Quality
(ppm):
Units
none shown (ppm
implied)
0 to 5000
850
Range
Default Value
Cool Minimum: Units
Range
CFM
0 to 9999 (Limited by
Delta Airflow — The Delta Airflow set point is used to con-
figure the Delta Airflow set point for the zone controller if the
zone pressure control option is used. If a negative pressure is
desired, configure the value as a positive delta.
the High Velocity pressure limit alarm)
Default Value
0
Cool Maximum (PI) — This configuration is the maximum
airflow the terminal will control to when the equipment is in
Cooling mode (or Fan Only mode) or free cooling and the
space requirements for cooling are at a maximum.
Delta Airflow:
Units
cfm
-9999 to 9999
0
Range
Default Value
Cool Maximum: Units
Range
CFM
Service Configuration Selection Screen — The
Service Configuration Selection screen is a menu of Service
screens which can be accessed by the user. The following
screens are available: Airflow Service Configuration, Terminal
Service Configuration, Option Service Configuration, and Sec-
ondary Damper Service Configuration.
AIRFLOW SERVICE CONFIGURATION SCREEN —
The Airflow Service Configuration Table is used to configure
the pressure independent and backup pressure dependent set
points. See Table 9.
0 to 9999 (Limited by
the High Velocity pressure limit alarm)
Default Value
4000
Terminal Reheat (PI) — This configuration is for single duct
units with ducted reheat. The desired airflow is configured at
which the reheat will provide optimum performance. This val-
ue is compared to the Minimum Cool value and the greater of
the two values is used to determine the airflow set point.
Terminal Reheat: Units
Range
CFM
0 to 9999 (Limited by
Pressure Independent — Pressure Independent (PI) set points
should be configured for pressure independent operation
applications.
the High Velocity pressure limit alarm)
Default Value
0
→ Table 8 — Set Point Screen
DESCRIPTION
DEFAULT
POINT NAME
Set Points
Occupied Heat
Occupied Cool
70.0 F
74.0 F
55.0 F
90.0 F
60.0 %
100 %
850 ppm
0 cfm
OHSP
OCSP
UHSP
UCSP
ORHH
URHH
AQSP
DCFM
Unoccupied Heat
Unoccupied Cool
Occupied HIgh Humidity
Unoccupied High Humidity
Air Quality (ppm)
Delta Airflow
Table 9 — Airflow Service Configuration Screen
DESCRIPTION
Pressure Independent
Cool Minimum
Cool Maximum
Terminal Reheat
DEFAULT
POINT NAME
0 cfm
4000 cfm
0 cfm
COOLMIN
COOLMAX
REHEAT
Heat Minimum
0 cfm
HEATMIN
Heat Maximum
Parallel Fan On
4000 cfm
0 cfm
4000 cfm
HEATMAX
FNONCFM
DDCVFLOW
Dual Duct CV Airflow
Pressure Dependent
Cool Minimum Position
Cool Maximum Position
Reheat Minimum Position
Heat Minimum Positon
Heat Maximum Position
Deadband Percent
0 %
100 %
0 %
0 %
100 %
12.5 %
CMINPOS
CMAXPOS
REMINPOS
HMINPOS
HMAXPOS
DB_PCT
37
1001
Heat Minimum (PI) — This configuration is the minimum
airflow the terminal will control to when the equipment mode
is Warm-Up or Heat. If the terminal is not configured for VAV
central heating this is the only airflow the terminal will control
to for these equipment modes.
Reheat Minimum Position (PD) — This configuration is for
single duct units with ducted reheat. Configure the desired
damper position at which the reheat will provide optimum per-
formance. This value is compared to the Minimum Cool value
and the greater of the two values is used to determine the
damper position.
Heat Minimum: Units
Range
CFM
0 to 9999 (Limited by
Reheat Minimum
Position:
the High Velocity pressure limit alarm)
Units
%
0 to 100
0
Default Value
0
Range
Default Value
Heat Maximum (PI) — This configuration is used to config-
ure the maximum airflow at which the zone controller will op-
erate if VAV central heat is configured to yes. If the equipment
mode is heat or warm-up, and the demand in the space is for
heat, the zone controller will calculate the proper airflow need-
ed to achieve space temperature set point (operating between
the Heat Min and Heat Max).
Heat Minimum Position (PD) — This configuration is the
Minimum damper position the terminal will control to when
the equipment mode is Warm-Up or Heat. If the terminal is not
configured for VAV central heating this is the only position the
terminal will control to for these equipment modes.
Heat Minimum
Position:
Heat Maximum: Units
Range
CFM
Units
%
0 to 100
0
0 to 9999 (Limited by
Range
the High Velocity pressure limit alarm)
Default Value
Default Value
4000
Heat Maximum Position (PD) — This configuration is used
to configure the maximum damper position at which the zone
controller will operate if VAV central heat is configured to yes.
If the equipment mode is Heat or Warm-Up and the demand in
the space is for heat the zone controller will calculate the prop-
er damper position needed to achieve space temperature set
point, operating between the Heat Min and Heat Max.
Parallel Fan On (PI) — This configuration is used to define
the primary airflow setting below which a parallel fan terminal
should energize its fan. The setting should be used to allow a
low volume of primary airflow to be better diffused into the
space.
Parallel Fan On: Units
Range
CFM
0 to 9999 (Limited by
Heat Maximum
Position:
the High Velocity pressure limit alarm)
Units
%
0 to 100
100
Default Value
0
Range
Default Value
Dual Duct CV Airflow (PI) — This configuration defines the
Dual Duct, constant volume, total airflow set point.
Deadband Percent — This configuration is used to configure
the Deadband Percent that the airflow will operate with.
Dual Duct
Airflow:
Units
CFM
Deadband
Percent:
Range
0 to 9999 (Limited by
Units
%
the High Velocity pressure limit alarm)
Default Value
Range
0.0 to 100.0
12.5
4000
Default Value
Pressure Dependent — Pressure Dependent (PD) set points
should be configured for backup pressure dependent operation,
if an operating problem with the pressure transducer occurs.
TERMINAL SERVICE CONFIGURATION SCREEN —
The Terminal Service Configuration screen lists the main con-
figuration settings for the air terminal controller. See Table 10.
Terminal Type — This configuration is used to indicate the
terminal type that the zone controller is installed on. A 1 is for
Single Duct terminals, a 2 is for Parallel Fan terminals, a 3 is
for Series Fan terminals, and a 4 is for Dual Duct applications.
IMPORTANT: Pressure dependent settings are
included for use only in the event of a pressure trans-
ducer failure. The inclusion of these configuration set-
tings does not indicate that Carrier is endorsing this
product for pressure dependent operation. In the case
of a pressure sensor failure, the zone controller will
broadcast a pressure sensor failure message on the
CCN bus. These configurations may be used by a ser-
vice technician to put the terminal in pressure depen-
dent mode until the zone controller can be replaced.
Terminal Type: Range
Default Value
1 to 4
1
Primary Inlet Size — The Primary Inlet Size configuration is
used to input the inlet diameter of the terminal if used with a
round inlet. The Inlet Area configuration is used for oval or
rectangular inlets. The zone controller will use the larger value
for CFM calculations if both values are configured.
Cool Minimum Position (PD) — This configuration is the
minimum damper position the terminal will control to when
the equipment mode is Cooling (or Fan Only), or free cooling
and the space requirements for cooling are at a minimum.
NOTE: Carrier sizes 12, 14, and 16 are oval.
Primary Inlet Size
(Inlet Diameter): Units
Range
Inches
3.0 to 24.0
6.0
Cool Minimum
Position:
Default Value
Units
%
0 to 100
0
Inlet Area — The Inlet Area configuration is used if the termi-
nal has an oval or rectangular inlet. The Primary Inlet Size
configuration is used for round inlets. The zone controller will
use the larger value for CFM calculations if both values are
configured.
Range
Default Value
Cool Maximum Position (PD) — This configuration is the
maximum damper position the terminal will control to when
the equipment mode is cooling (or fan only), or free cooling
and the space requirements for cooling are at a maximum.
Inlet Area:
Units
Square Inches
0.0 to 500.0
0.0
Range
Default Value
Cool Maximum
Position:
Units
%
0 to 100
100
Range
Default Value
38
Table 10 — Terminal Service Configuration Screen
DESCRIPTION
DEFAULT
POINT NAME
COOLING
Terminal Type
1
TERMTYPE
Primary Inlet Size
Inlet Diameter
Inlet Area
6.0 in.
0.0 in.
RNDSZ
SQA
Probe Multiplier
Calibration Gain
Offset
2.443
1.000
0 cfm
PMF
CAL_GAIN
OFFSET
Damper
Proportional Gain
Integral Gain
Derivative Gain
Starting Value
30.0
5.0
KP
KI
0.0
KD
20 %
STARTVAL
CW Rotation
Pressure Independent
HEATING
Close
Yes
DMPDIR
PRESIN D
Heat Type
VAV Central Heating
0
Yes
HEATTYPE
CENHEAT
Heating
Proportional Gain
Integral Gain
Derivative Gain
Starting Value
8.0
3.0
KP
KI
0.0
KD
80 F
STARTVAL
Ducted Heat
Yes
110 F
1
2
2
Normal
0.0 F
0.0 F
Close
DUCTHEAT
MAXTEMP
STAGES
HONDEL
FNOFFD
HEATYPE
SPTTRIM
SATTRIM
RMTCFG
Maximum Temperature
Number of Electric Heat Stages
Heat On Delay
Fan Off Delay
2-Position Heat Logic
SPT Trim
SAT Trim
Remote Contact Configuration
→ Probe Multiplier — This configuration is used to input a factor
for the velocity pressure probe installed in the terminal inlet.
Most inlet probes will have some aerodynamic characteristics
that will affect the differential pressure output from the probe.
The formula used by the ComfortID™ controller for calculat-
ing the airflow (cfm) is based on measuring velocity with a
Pitot tube probe. A PMF (Pitot measurement factor) is required
in the calculation for different probes. Because various probe
characteristics are different, the PMF is used to determine the
correct airflow based on the type of probe installed. The PMF
will compensate for the difference between Pitot-type probes
and the actual probe installed.
that gives an airflow value of 820 cfm at a velocity pressure
reading of 1 in. wg. To determine the PMF for the terminal:
1. Determine duct area.
radius of duct = diameter of duct/2
radius = 8-in./2-in.
radius = 4-in.
Area of circular duct = Πr2
Area = 3.14159 x 42
Area = 3.14159 x 16
Area = 50.26-in.2
Area must be in ft2
50.26-in.2/(144-ft2) = 0.34906 ft2
The default PMF value of 2.273 is the correct value to use
when the zone controller is used with a Carrier probe in a
Carrier air terminal. For terminals and probes supplied by other
manufacturers, the PMF must be calculated and entered into
the zone controller configuration in order to correctly measure
airflow.
2. Determine K factor.
K factor = (820 cfm/0.34906 ft2)
K factor = 2349 fpm
3. Determine PMF.
PMF = (4005 fpm/2349 fpm)2
PMF = 2.907
To determine the correct PMF value, there are several meth-
ods depending on the data supplied by the terminal manufac-
turer. The manufacturer may supply a “K factor” or may sup-
ply a chart of velocity pressure vs. airflow for the terminal. The
K factor is the actual airflow velocity at a velocity pressure
reading of 1 in. wg for the probe. This value is in ft/min and
can be used to calculate the PMF. When the K factor is entered
into the following equation, it is compared to the value of 4005,
which is the K factor for a Pitot tube probe:
PMF = (4005/K FACTOR)2
If a chart is supplied by the manufacturer instead of the K
factor, then the K factor can be calculated from the chart using
the following formula:
Another way to determine the probe constant for a probe
without documentation is to measure the velocity pressure with
a Magnahelic gage. Open the damper and adjust the static pres-
sure or open the damper until you have one inch of velocity
pressure on the Magnahelic gage. Measure the total CFM of air
being delivered. The CFM just measured divided by the inlet
area in square feet should equal the K factor for the formula.
Now use the K factor that was empirically derived to determine
the probe multiplier.
Probe Multiplier: Range
Default Value
0.250 to 9.999
2.443
Calibration Gain — Air terminal testing by industry standards
is done with straight duct, upstream of the terminal. Since some
applications do not get installed in this manner, the actual air-
flow from the terminal at balancing may not equal the reading
from the zone controller.
K FACTOR = (cfm at 1-in. wg)/(duct area ft2)
As an example, an air terminal with an 8-in. round inlet is
used. The terminal manufacturer has provided an airflow chart
39
303
The calibration gain is used for the fine tuning adjustments
which might need to be made to the airflow calculation. This
number is calculated automatically by the zone controller after
input to the air balance maintenance screen, or it can be input
manually at this screen. For ease of use it is recommended to
use the Air Balance Maintenance screen to determine this num-
ber. The Air Balancing Maintenance screen will cause the val-
ue to be updated during the balancing procedure.
If the Calibration Gain must be configured manually, it is
determined as a percentage up or down that the CFM indicated
will be offset. A number of .95 will cause the maximum air-
flow calculated to be reduced to 95% of the value. A Calibra-
tion Gain of 1.00 will cause no change. A number of 1.05
would cause readings to become 5% higher.
The Calibration Gain is adjusted on the Air Balance Mainte-
nance screen when performing the Maximum Airflow calibra-
tion and will have the greatest effect on the airflow at maxi-
mum CFM. Any error in reading at minimum airflow is adjust-
ed by calculating the Offset configuration value. After
performing the air balance using the Air Balance Maintenance
screen it is a good idea to upload and save the Calibration Gain
and Offset values.
Start Value:
Units
%
0 to 100
20
Range
Default Value
Clockwise Rotation — This configuration is used to define
what effect a clockwise rotation of the actuator will have on the
damper. If the actuator rotates clockwise to closed position, the
configuration should be set to Close. If the actuator rotates
clockwise to open, the configuration should be set to open.
This configuration is used to change the rotation of the actuator
so that the damper transducer calibration will work properly.
The actuator does not have to be re-installed nor any switches
changed to reverse the action.
Clockwise
Rotation:
Range
Default Value
Close/Open
Close
Pressure Independent — This configuration defines if the ter-
minal will function in the pressure independent or pressure de-
pendent mode.
NOTE: Pressure dependent mode should only be used in an
emergency, if the pressure sensor is not functioning.
Pressure
Independent:
Range
Default Value
No/Yes
Yes
Calibration Gain: Range
Default Value
0.000 to 9.999
1.000
→
Heat Type — This configuration is used to define the type of
heat installed on the terminal. A 0 is equal to None. A 1 is
equal to Modulating/VAV. A 2 is equal to Two Position. A 3 is
equal to staged Electric. A 4 is equal to Modulating/CV.
Offset — The Offset configuration is included for precision
applications where the minimum airflow is critical and not ze-
ro. This configuration indicates the amount of CFM the trans-
ducer is off by, at minimum airflow, during the minimum air-
flow test on the air balance screen. This configuration should
not be used to zero the airflow transducer since an auto zero
test is included on the air balance screen and is also automati-
cally performed each time the equipment fan is disabled (or
every 72 hours for systems which run the fan continuously).
After performing the air balance testing using the Air Balance
Maintenance screen it is a good idea to upload and save the
Calibration gain and Offset values. The cfm will be offset by
the value entered in the Minimum Cfm variable and will zero
at the value entered in the Maximum Cfm variable. There will
be a linear relationship between the two set points.
Heat Type:
Range
Default Value
0 to 4
0
VAV Central Heating — The VAV Central Heating configura-
tion is used if the air source has the ability to provide heat and
the terminal is required to modulate, using the heat minimum
and heat maximum airflows, when the air source is in the heat
mode. If this variable is set to No, the terminal will use its
available local heat to heat the zone at all times.
VAV Central
Heating:
Range
Default Value
No/Yes
Yes
Offset:
Units
cfm
-250 to 250
0
Heating Loop Parameters — The heating loop gains and start
value define how the terminal will respond to deviations in
measured space temperature in order to control to the heat set
point.
The Proportional Gain is calculated each time the space
temperature is compared to the heat set point. As the error
from set point goes to zero, the Proportional Gain will also go
to zero.
The Integral Gain is a running summation of all integral
terms since the loop started. This has the affect of trimming off
any offset from set point which might occur if only the Propor-
tional Gain existed. Normally a proportional loop with no Inte-
gral Gain would require frequent adjustments of the starting
value to eliminate the offset as loading conditions on the room
change.
The Derivative Gain is not needed. This term tends to nulli-
fy large changes in the Proportional Gain for dampened
response.
Range
Default Value
Damper Loop Parameters — The loop gains and start value
define how the terminal will respond to deviations in measured
CFM in order to control to the airflow set point.
The Proportional Gain is calculated each time the airflow is
compared to the active airflow set point. As the error from set
point goes to zero, the proportional term will also go to zero.
The Integral Gain is a running summation of all integral
terms since the loop started. This has the effect of trimming off
any offset from the set point which might occur, if only the pro-
portional term existed. Normally a proportional loop with no
integral term would require frequent adjustments of the starting
value to eliminate the offset as static pressure and other condi-
tions change.
The Derivative Gain is not needed. The Derivative Gain
would tend to nullify large changes in the Proportional Gain for
dampened response. These large changes in the Proportional
Gain do not tend to happen for this type of control.
Heating Loop Parameters
Proportional Gain: Range
00.0 to 99.9
8.0
Damper Loop Parameters
Default Value
Proportional Gain:Range
00.0 to 99.9
30.0
Default Value
Integral Gain:
Range
Default Value
00.0 to 99.0
3.0
Integral Gain:
Range
Default Value
00.0 to 99.0
5.0
Derivative Gain: Range
00.0
0.0
Default Value
Derivative Gain: Range
00.0
0.0
Default Value
40
801
Start Value:
Units
F (C)
40 to 125
80
Space Temperature Trim — This configuration is used to trim
a space sensor which might need calibration. For example, if
the temperature displayed is two degrees above the value mea-
sured with calibrated test equipment, input a value of –2.0.
Range
Default Value
Ducted Heat — The Ducted Heat configuration is used to con-
figure the terminal for ducted heat. If a local heat source is in
the duct and requires airflow to provide heat, set the Ducted
Heat configuration for yes.
Space Temperature
Trim:
Units
delta F (delta C)
–9.9 to 9.9
0.0
Range
Default Value
Ducted Heat
Range
Default Value
No/Yes
Yes
Supply Air Temperature Trim — This configuration is used
to trim a supply air sensor which might need calibration. For
example, if the temperature displayed is two degrees above the
value measured with calibrated test equipment, input a value of
–2.0.
Maximum Duct Temperature — This configuration is used to
configure the maximum supply-air temperature desirable for
heating the space. This will cause the heat to be modulated or
cycled using this value as the maximum temperature of the air
to be supplied.
Maximum Duct
Temperature:
Supply Air Temperature
Trim:
Units
delta F (delta C)
–9.9 to 9.9
0.0
Range
Default Value
Units
Range
Default Value
F (C)
40 to 200
110
Remote Contact Config — The remote timeclock contact in-
put can be configured as a normally open or normally closed
contact. When the timeclock input is ‘On’ the zone will follow
it’s local occupancy schedule. When the timeclock input is
‘Off’ the zone will be forced into unoccupied state.
→
Number of Electric Stages — This configuration is used to
define the number of stages of electric heat controlled by the
zone controller.
Number of
Electric Stages: Range
Remote Contact
Config:
1 to 3
1
Range
Default Value
Close/Open
Close
Default Value
Heat On Delay — The Heat On Delay configuration is used to
define a delay from the time a parallel terminal fan is started
until the heat is activated.
Heat On Delay: Units
Range
OPTIONS SERVICE CONFIGURATION SCREEN —
The Options Service Configuration screen is used to configure
the service options of the air terminal controller. See Table 11.
Occupancy Schedule Number — The Occupancy Schedule
Number defines what Occupancy schedule the zone controller
will use. Occupancy Schedule 64 is a local schedule. Occupan-
cy Schedules 65 to 99 are global schedules.
minutes
1 to 60
2
Default Value
Fan Off Delay — The Fan Off Delay configuration is used to
define a delay time. The delay time is from when the heat is de-
activated (in a parallel terminal) until the parallel fan is deacti-
vated. This allows the fan to circulate air and remove the resid-
ual heat from the heat source.
Occupancy Schedule
Number:
Range
64 to 99
64
Default Value
Global Schedule Master — The Global Schedule Master con-
figuration allows the Occupancy Schedule to be used as a Glo-
bal Schedule Master (Occupancy Schedules 65-99).
Fan Off Delay: Units
Range
minutes
1 to 15
2
Default Value
Global Schedule
Two-Position Heat Logic — This configuration is used for
controlling a normally closed or normally open valve for hot
water. Use normal logic if the valve is normally closed. Use in-
verted logic if the valve is normally open.
Master:
Range
No/Yes
No
Default Value
Two Position
Heat Logic:
Range
Default Value
Normal/Invert
Normal
Table 11 — Options Service Configuration Screen
DESCRIPTION
DEFAULT
POINT NAME
SCH
Occupancy Schedule Number
Global Schedule Master
Override
Broadcast Acknowledge
Set Point Group Number
Global Set Point Master
Maximum Offset Adjust
Control Options
64
No
00:00
No
0
No
2 F
0
GSM
OVR
BCACK
SETT
GSTM
LIMT
CTLOPT
Humidity
Proportional Gain
Integral Gain
1.5
0.30
100.0 cfm
KP
KI
MAXOUT
Maximum Output Value
Air Quality
Proportional Gain
Integral Gain
0.10
0.03
100.0 cfm
KP
KI
MAXOUT
Maximum Output Value
AQ Low Voltage
0.0
10.0
0 ppm
2000 ppm
AQINLO
AQINHI
AQLO
AQ High Voltage
AQ Low Reference
AQ High Reference
AQHI
41
801
Override — The Override parameter is used to configure the
number of hours and minutes the override will be in effect. The
user initiates override by pressing the override button on the
space temperature sensor. This will cause the schedule to enter
into the Occupied mode. If global scheduling is used, all zones
using the global schedule will enter Occupied mode. Pushing
the override button during Occupied mode will have no effect.
Integral Gain:
Range
0.00 to 9.99
0.30
Default Value
Maximum Output
Value:
Range
0.0 to 100.0% (max cool
cfm)
100.0
Default Value
If the occupancy override is due to end after the start of the
next occupancy period, the mode will transition from occupan-
cy override to occupied without becoming unoccupied, and the
occupancy override timer will be reset.
NOTE: If using the tenant billing function, the override
hours set point must be configured between 1 and 3 hours.
Indoor Air Quality Control — These configuration values de-
fine the calculation parameters for determining the airflow
needed to correct a high incidence of air pollution contami-
nants in the space, such as CO2. The Maximum Output Value is
measured in percentage of nominal terminal cfm.
Proportional Gain:Range
Default Value
0.00 to 9.99
0.10
Override:
Units
Hours: Minutes
00:00 to 24:00
00:00
Range
Integral Gain:
Range
Default Value
0.00 to 9.99
0.03
Default Value
Broadcast Acknowledger — This configuration defines if the
zone controller will be used to acknowledge broadcast messag-
es on the CCN bus. One broadcast acknowledger is required
per bus, including secondary busses created by the use of a
bridge.
Maximum Output
Value:
Range
0.0 to 100.0% (max cool
cfm)
Default Value
100.0
→ IAQ Sensor Low Voltage — This configuration defines the
lowest voltage which should be read from the air quality
sensor.
Broadcast
Acknowledger: Range
No/Yes
No
Default Value
IAQ Sensor
Set Point Group Number — The Set Point Group Number is
used to define the current zone controller as a part of a group of
zone controllers which share the same set points. All zone con-
trollers with the same Set Point Group Number will have the
same set points. The set points are broadcast to the group by the
zone controller defined by the Global Set Point Master config-
uration. A value of 0 is a local schedule. Values 1 to 16 are used
for global scheduling.
Low Voltage:
Range
00.0 to 10.0
0.0
Default Value
IAQ Sensor High Voltage — This configuration defines the
highest voltage which should be read from the air quality sen-
sor.
IAQ Sensor
High Voltage:
Range
Default Value
00.0 to 10.0
10.0
Set Point
Group Number: Range
0 to 16
0
IAQ Low Reference — This configuration defines the value
in parts per million which correlate to the low voltage reading
from the air quality sensor.
IAQ Low
Reference:
Default Value
Global Set Point Master — This configuration defines if the
current zone controller will broadcast its set point values to the
other zone controllers which are made part of the same group
by configuring the Set Point Group Number.
Units
Range
Default Value
ppm (parts per million)
0 to 5000
0
Global Set Point
Master:
Range
Default Value
No/Yes
No
IAQ High Reference — This configuration defines the value
in parts per million which correlate to the high voltage reading
from the air quality sensor.
IAQ High
Reference:
Maximum Offset Adjustment — This configuration deter-
mines the maximum amount that the set point will be biased
(up or down), by adjusting the slide bar on the space tempera-
ture sensor (if installed).
Units
Range
Default Value
ppm (parts per million)
0 to 5000
2000
Maximum Offset
Adjustment:
Units
delta F (delta C)
0 to 15
2
Range
SECONDARY DAMPER SERVICE CONFIGURATION
SCREEN — The Secondary Damper Service Configuration
screen is used to configure the secondary damper settings. See
Table 12.
Zone Pressure Control — The Zone Pressure Control config-
uration determines whether the primary and secondary control-
lers will be configured for zone pressure control.
Default Value
Control Options — The Control Options configuration deter-
mines whether the zone controller will use a humidity sensor or
an indoor air quality sensor. A configuration of 0 means no
sensors are used. A configuration of 1 means a Humidity Sen-
sor is used. A configuration of 2 means an IAQ Sensor is used.
Control Options: Range
Default Value
Humidity Control — These configuration values define the
calculation parameters for determining the airflow needed to
correct a high humidity problem in the space. The Maximum
Output Value is measured in percentage of nominal terminal
cfm.
0 to 2
0
Zone Pressure
Control:
Range
Default Value
Dsable/Enable
Dsable
Dual Duct Type — The Dual Duct Type setting configures the
secondary controller for the correct dual duct type. A value of 0
configures the type to None. A value of 1 configures the type to
Second Inlet (Hot Deck). A value of 2 configures the duct to
Total Probe (terminal outlet).
Dual Duct Type: Range
Default Value
Proportional
Gain:
Range
0.0 to 9.9
1.5
0 to 2
0
Default Value
800
42
Table 12 — Secondary Damper Service Configuration Screen
DESCRIPTION
Zone Pressure Control
Dual Duct Type
DEFAULT
Dsable
0
POINT NAME
ZPCNTL
DDTYPE
Secondary Duct Size
Inlet Diameter
Inlet Area
6.0 in.
0.0 sq. in.
SRNDSZ
SSQA
Probe Multiplier
Calibration Gain
Offset
2.443
1.000
0 cfm
Close
SPMF
CAL_GAIN
SOFFSET
DMPDIR
CW Rotation
Secondary Duct Size — The Secondary Duct Size setting is
used to input the inlet diameter of the terminal, if used with a
round inlet. The Inlet Area configuration is used for oval or
rectangular inlets. The zone controller will use the larger value
for CFM calculations if both values are configured.
will be offset. A number of .95 will cause the maximum air-
flow calculated to be reduced to 95% of the value. A Calibra-
tion Gain of 1.00 will cause no change. A number of 1.05
would cause readings to become 5% higher.
Any error in reading at minimum airflow is adjusted by cal-
culating the Offset configuration value.
Secondary Duct Size
(Inlet Diameter): Units
Range
Inches
3.0 to 24.0
6.0
Calibration Gain: Range
Default Value
0.000 to 9.999
1.000
Default Value
Offset — The Offset configuration is included for precision
applications where the minimum airflow is critical and not
zero. The cfm will be offset by the value entered in the Mini-
mum Cfm variable and will zero at the value entered in the
Maximum Cfm variable. There will be a linear relationship be-
tween the two set points.
Inlet Area — The Inlet Area configuration is used if the termi-
nal has an oval or rectangular inlet. The Primary Inlet Size
configuration is used for round inlets. The zone controller will
use the larger value for CFM calculations if both values are
configured.
Inlet Area:
Units
Square Inches
0.0 to 500.0
0.0
Offset:
Units
cfm
Range
Range
–250 to 250
Default Value
Default Value
0
Probe Multiplier — This configuration is used to input a fac-
tor for the velocity pressure probe characteristics installed in
the inlet. All averaging probes will have some aerodynamic
characteristics which will amplify the pressure difference read
at the inlet of the terminal. The default of 2.443 is the correct
value to use if the probe is a Carrier probe in a 35 or 45 Series
terminal.
Clockwise Rotation — This configuration is used to define
what effect a clockwise rotation of the actuator will have on the
damper. If the actuator rotates clockwise to closed position, the
configuration should be set to Close. If the actuator rotates
clockwise to open, the configuration should be set to open.
This configuration is used to change the rotation of the actuator
so that the damper transducer calibration will work properly.
The actuator does not have to be reinstalled nor any switches
changed to reverse the action.
The formula for calculating velocity using an Ideal probe is:
Velocity = 4005* SQRT (Velocity Pressure)
Most manufactures will provide a probe constant for the
probe supplied. For example, Velocity = 2213*SQRT(Velocity
Pressure). To calculate the number to input in this decision
(Probe Multiplier) use the formula. (4005/2213)2 = 3.3. So you
would use 3.3 in place of 2.443 for a probe with a probe con-
stant of 2213.
An easy way to determine the probe constant for a probe
without documentation is to measure the velocity pressure with
a Magnahelic gage. Open the damper and adjust the static pres-
sure until you have one inch of velocity pressure on the Magna-
helic gage. Measure the total CFM of air being produced. The
CFM just measured divided by the inlet area in feet should
equal the probe constant for the formula. Velocity = (CFM just
measured/inlet area) * SQRT (1.0). Now use the constant that
was empirically derived to determine the probe multiplier
(4005/(CFM at 1.0 Inch/Inlet area))2 = Probe Multiplier.
Clockwise
Rotation:
Range
Close/Open
Close
Default Value
Maintenance Table Menu Screen — The Mainte-
nance Table Menu screen allows the user to select one of 4
available maintenance tables: the Linkage Maintenance Table,
the Occupancy Maintenance Table, the Zone Air Balance
Table, and the Zone Maintenance Table.
LINKAGE MAINTENANCE TABLE — The Linkage
Maintenance table is used to view the zone linkage variables.
See Table 13.
Air Source Bus Number — This variable will display the bus
number of the air source that the zone controller will be com-
municating Linkage to, if this zone is the Linkage Master.
Air Source
Bus Number:
→
→
Range
Default Value
Network Access None
0 to 239
0
Probe Multiplier: Range
Default Value
0.250 to 9.999
2.443
Calibration Gain — Air terminal testing by industry standards
is done with straight duct, upstream of the terminal. Since most
applications do not get installed in this manner, the actual air-
flow from the terminal at balancing may not equal the reading
from the zone controller.
Air Source Element Number — This variable will display the
Element Address of the Air Source that the zone controller
will be communicating Linkage to, if this zone is the Linkage
Master.
Air Source
Element Number: Display Range
Default Value
The calibration gain is used for the fine tuning adjustments
which might need to be made to the airflow calculation.
If the Calibration Gain must be configured manually. It is
determined as a percentage up or down that the CFM indicated
1 to 239
0
Network Access None
501
43
Master Zone Element Number — This variable will display
Average Unoccupied Cool Set Point — This variable dis-
plays the weighted average of the unoccupied cool set point,
calculated by the linkage coordinator, from the information re-
ceived from polling its associated zones. The set points are
weighted by the maximum airflow capacities of the zone con-
trollers scanned by the linkage coordinator.
the element address of the zone which is the Linkage Master.
Master Zone
Element Number: Display Range
Default Value
1 to 239
0
Network Access Read only
Average Occupied
Operating Mode — This variable will display the current op-
erating mode of the air source, if Linkage is available, or the
mode determined by the Linkage Master using the primary air
sensor, if available. If the primary air sensor has failed or was
not installed, the Linkage master will assume the default mode
of cooling.
Cool Set Point: Display Units
Display Range
F (C)
0.0 to 99.9
0.0
Default Value
Network Access None
Average Zone Temperature — This variable displays the
weighted average of the space temperatures, collected by the
linkage coordinator, from polling its associated zones. The
temperatures are weighted by the maximum airflow capacities
of the zone controllers scanned by the linkage coordinator.
Operating Mode: Display Range
COOLING, HEATING,
WARM-UP, FREECOOL, PRESSURE,
EVAC, OFF
Default Value
OFF
Average Zone
Temperature:
Network Access Read only
Display Units
Display Range
Default Value
F (C)
0.0 to 99.9
0.0
Air Source Supply Temperature — This variable displays the
supply temperature reading of the air source.
Air Source Supply
Temperature:
Network Access Read Only
Units
F (C)
-40 to 245
0
Average Occupied Zone Temperature — This variable dis-
plays the weighted average of the space temperatures of occu-
pied zones, collected by the linkage coordinator, from polling
its associated zones. The temperatures are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Display Range
Default Value
Network Access None
Start Bias Time — This variable displays the Start Bias Time,
in minutes, calculated by the air source. The Start Bias Time is
calculated to bring the temperature up or down to the set point
under the optimum start routine. This value will be sent to all
associated zones for optimum start of zone controllers. This
function is supported by all Carrier equipment which perform
linkage.
Average Occupied
Zone Temperature:Display Units
Display Range
F (C)
0.0 to 99.9
0.0
Default Value
Network Access Read Only
Start Bias Time: Display Units
Display range
minutes
0 to 185
0
→
Composite CCN Value — This variable displays the high, low
or average of the CCN variable collected from each zone as
configured in the Linkage Coordinator Configuration Screen.
The value is sent to the CCN address and variable specified
within that configuration table.
Default Value
Network Access None
Average Occupied Heat Set Point — This variable displays
the weighted average of the occupied heat set point, calculated
by the linkage coordinator, from the information received from
polling its associated zones. The set points are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Composite
CCN Value:
Display Range
Default Value
0-65535
0
Network Access Read Only
Occupancy Status — This variable displays a “1” when at
least one of the associated zone controllers (that are being
scanned) is in the occupied mode.
Average Occupied
Heat Set Point: Display Units
Display Range
F (C)
0.0 to 99.9
0.0
Occupancy Status:Display Range
Default Value
0 or 1 (1 = occupied)
0
Default Value
Network Access None
Network Access Read only
Average Occupied Cool Set Point — This variable displays
the weighted average of the occupied cool set point, calculated
by the linkage coordinator, from the information received from
polling its associated zones. The set points are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Next Occupied Day — This variable displays the day when
the next associated zone is scheduled to change from unoccu-
pied to occupied mode. This point is read in conjunction with
the next occupied time to allow the user to know the next time
and day when a zone will become occupied.
Next Occupied
Day:
Average Occupied
Cool Set Point: Display Units
Display Range
Display Range
Default Value
MON, TUE, WED,
THU, FRI, SAT, SUN
No display (Blank)
F (C)
0.0 to 99.9
0.0
Default Value
Network Access None
Network Access None
Next Occupied Time — This variable displays the time of day
when the next associated zone is scheduled to change from un-
occupied to occupied mode. This point is read in conjunction
with the next occupied day to allow the user to know the next
time and day when a zone will become occupied.
Average Unoccupied Heat Set Point —This variable displays
the weighted average of the unoccupied heat set point, calculat-
ed by the linkage coordinator, from the information received
from polling its associated zones. The set points are weighted
by the maximum airflow capacities of the zone controllers
scanned by the linkage coordinator.
Next Occupied
Time:
Display Range
Default Value
00:00 to 24:00
0:00
Average Unoccupied
Heat Set Point: Display Units
Display Range
F (C)
0.0 to 99.9
0.0
Network Access None
Default Value
Network Access None
801
44
→ Table 13 — Linkage Maintenance Screen
DESCRIPTION
Air Source Bus Number
Air Source Element Number
Master Zone Element Number
Operating Mode
DEFAULT
0
POINT NAME
ASBUSNUM
ASDEVADR
MZDEVADR
ASOPMODE
ASTEMP
STRTBIAS
AOHS
0
0
OFF
0 F
Air Source Supply Temperature
Start Bias Time
0 minutes
0.0 F
Average Occupied Heat Set Point
Average Occupied Cool Set Point
Average Unoccupied Heat Set Point
Average Unoccupied Cool Set Point
Average Zone Temperature
Average Occupied Zone Temperature
Composite CCN Value
Occupancy Status
Next Occupied Day
Next Occupied Time
Next Unoccupied Day
0.0 F
0.0 F
AOCS
AUHS
0.0 F
0.0 F
AUCS
AZT
0.0 F
0
AOZT
CCCNVAL
OCCSTAT
NXTOCCD
NXTOCCT
NXTUNOD
NXTUNOT
PREVUNOD
PRVUNOT
MAXDMPOS
PRESVAL
PRESDECR
PRESINCR
0
(blank)
00:00
(blank)
00:00
(blank)
00:00
0.0 %
0.0 in. wg
0.000 in. wg
0.000 in. wg
Next Unoccupied Time
Previous Unoccupied Day
Previous Unoccupied Time
Maximum Damper Position
Static Pressure Reset
Pressure Decrease Value
Pressure Increase Value
Next Unoccupied Day — This variable displays the day when
the next associated zone is scheduled to change from occupied
to unoccupied mode. This point is read in conjunction with the
next unoccupied time to allow the user to know the next time
and day when a zone will become unoccupied.
Maximum Damper Position — This variable displays the
damper position of the zone controller in the system with the
damper in the most open position. This is used by the linkage
coordinator to calculate the static pressure reset.
Maximum Damper
Next Unoccupied
Day:
Position:
Display Units
Display Range
Default Value
% (open)
0.0 to 100.0
0.0
Display Range
Default Value
MON, TUE, WED,
THU, FRI, SAT, SUN
No display (Blank)
Network Access Read/Write
Network Access None
Static Pressure Reset — This variable displays the current
static pressure reset calculated, using the maximum damper po-
sition and the configuration information from the linkage con-
figuration table.
Next Unoccupied Time — This variable displays the time of
day when the next associated zone is scheduled to change from
occupied to unoccupied mode. This point is read in conjunction
with the next unoccupied day to allow the user to know the
next time and day when a zone will become unoccupied.
Static Pressure
Reset:
Display Units
Display Range
Default Value
in. wg
0.0 to 5.0
0.0
Next Unoccupied
Time:
Display Range
Default Value
00:00 to 24:00
0:00
Network Access Read/Write
Network Access None
Pressure Decrease Value — If the maximum damper position
in the system goes below the minimum configuration setting,
the linkage coordinator will calculate an amount that the static
pressure should be decreased. This is used to open the system
dampers more so that they will modulate between their mini-
mum and maximum settings.
Previous Unoccupied Day — This variable displays the day
when the last associated zone changed from occupied to unoc-
cupied mode. This point is read in conjunction with the previ-
ous unoccupied time to allow the user to know the last time and
day when a zone became unoccupied.
Previous Unoccupied
This number is rounded to the nearest tenth of an inch and
will be added to the static pressure reset value unless the static
pressure reset value has reached maximum reset.
Day:
Display Range
MON, TUE, WED,
THU, FRI, SAT, SUN
No display (Blank)
Default Value
Network Access None
Previous Unoccupied Time — This variable displays the time
of day when the last associated zone changed from occupied to
unoccupied mode. This point is read in conjunction with the
previous unoccupied day to allow the user to know the last time
and day when a zone became unoccupied.
Pressure Decrease
Value:
Display Units
Display Range
Default Value
in. wg
0.000 to 5.000
0.000
Network Access Read/Write
Pressure Increase Value — If the maximum damper position
in the system goes above the maximum configuration setting,
the linkage coordinator will calculate an amount that the static
pressure should be increased. This is used to close the system
dampers more so that they will modulate between their mini-
mum and maximum settings.
Previous Unoccupied
Time:
Display Range
Default Value
Network Access None
00:00 to 24:00
0:00
801
45
This number is rounded to the nearest tenth of an inch and
will be subtracted to the static pressure reset value unless the
static pressure reset value has reached zero.
Unoccupied Start Time — This variable displays the time that
the current occupied mode will end (the beginning of the next
unoccupied mode). If the current mode is unoccupied or the
zone controller is following a global schedule, the value dis-
played by this point will be 0:00.
Pressure Increase
Value:
Display Units
Display Range
Default Value
in. wg
0.000 to 5.000
0.000
Unoccupied Start
Time:
Display Range
Default Value
00:00 to 24:00
0:00
Network Access Read/Write
Network Access None
OCCUPANCY MAINTENANCE TABLE — The Occu-
pancy Maintenance table is used to view the occupancy set
points. See Table 14.
Mode — This variable displays the current occupied mode for
the zone controller. If the zone controller is following its own
local schedule, this is the result of the local schedule status. If
the zone controller is configured to follow a global schedule,
this point displays the mode last received from a global sched-
ule broadcast.
Next Occupied Day — This variable displays the day when
the next occupied period is scheduled to begin. This point is
read in conjunction with the next occupied time to allow the
user to know the next time and day when the next occupied pe-
riod will occur. If the zone controller is following a global
schedule this point will remain at default.
NOTE: If the current mode is occupied, this point makes refer-
ence to the next occupied period and, in most cases, may not
be the same as the current occupied start time.
Mode:
Display Range
Default Value
0 or 1 (1 = occupied)
0
Next Occupied
Day:
Network Access None
Display Range
Default Value
MON, TUE, WED,
THU, FRI, SAT, SUN
No display (Blank)
Current Occupied Period — If the zone controller is config-
ured to determine occupancy locally, this variable will display
the current period determining occupancy.
Network Access None
→
Next Occupied Time — This variable displays the time of day
when the next occupied period will occur. This point is read in
conjunction with the next occupied day to allow the user to
know the next time and day when the zone will become occu-
pied. If the zone controller is following a global schedule this
point will remain at default.
NOTE: If the current mode is occupied, this point makes
reference to the next occupied period and, in most cases,
may not be the same as the current occupied start time.
Next Occupied
Current Occupied
Period:
Display Range
Default Value
1 to 8
0
Network Access None
Override in Progress — If an occupancy override is in
progress, this variable will display a yes.
Override In
Progress:
Display Range
Default Value
Yes/No
No
Network Access None
Time:
Display Range
Default Value
00:00 to 24:00
0:00
Override Duration — This variable displays the number of
minutes remaining for an occupancy override which is in
effect. If the number of override hours was downloaded, the
value will be converted to minutes.
Network Access None
→ Next Unoccupied Day — This variable displays the day when
the next unoccupied period is scheduled to begin. This point is
read in conjunction with the next unoccupied time to allow the
user to know the next time and day when the zone will become
unoccupied. If the zone controller is following a global sched-
ule this point will remain at default.
Override
Duration:
Display Units
Display Range
Default Value
minutes
0 to 1440
0
Network Access None
NOTE: If the current mode is unoccupied, this point makes
reference to the next unoccupied period and, in most cases,
may not be the same as the current unoccupied start time.
Occupied Start Time — This variable displays the time that
the current occupied mode began. If the current mode is unoc-
cupied or the zone controller is following a global schedule, the
value displayed by this point will be 0:00.
Next Unoccupied
Day:
Display Range
Default Value
MON, TUE, WED,
THU, FRI, SAT, SUN
No display (Blank)
Occupied Start
Time:
Display Range
Default Value
00:00 to 23:59
0:00
Network Access None
Network Access None
Table 14 — Occupancy Maintenance Screen
DESCRIPTION
DEFAULT
0
POINT NAME
MODE
Mode
Current Occupied Period
Override in Progress
Override Duration
Occupied Start Time
Unoccupied Start Time
Next Occupied Day
Next Occupied Time
Next Unoccupied Day
Next Unoccupied Time
Last Unoccupied Day
Last Unoccupied Time
0
PERIOD
No
0
OVERLAST
OVERDURA
OCCSTART
UNSTART
NXTOCCD
NXTOCCT
NXTUNOD
NXTUNOT
PRVUNOD
PRVUNOT
00:00
00:00
(blank)
00:00
(blank)
00:00
(blank)
00:00
501
46
→
Next Unoccupied Time — This variable displays the time of
day when the next unoccupied period is scheduled to begin.
This point is read in conjunction with the next unoccupied day
to allow the user to know the next time and day when the zone
will become unoccupied. If the zone controller is following a
global schedule this point will remain at default.
Maximum Cooling Airflow Calibration — By enabling the
Maximum Cooling Airflow Calibration, the Maximum Cool-
ing Airflow from the set point schedule will be made the Air-
flow CFM Set Point. The zone controller will modulate the
damper to control to this set point. The actual airflow, damper
position, and velocity pressure readings will be displayed.
NOTE: If the current mode is unoccupied, this point makes
reference to the next unoccupied period and, in most cases,
may not be the same as the current unoccupied start time.
If the set point is not correct, it may be changed from this
screen by forcing the airflow set point to the desired value. The
value will be written to the set point schedule in the Maximum
Cool CFM set point, and the zone controller will begin to con-
trol to the new value.
The airflow can be measured using test and balance equip-
ment and compared to the actual reading on the screen. If the
value measured requires adjustment to the value on the screen,
force the value on the screen to the value measured. The zone
controller will take the value and calculate a new calibration
gain which will be shown at the bottom of the screen. The new
value will be automatically loaded into the Service Configura-
tion table.
Next Unoccupied
Time:
Display Range
Default Value
00:00 to 24:00
0:00
Network Access None
→
Last Unoccupied Day — This variable displays the last day
when the zone changed from occupied to unoccupied mode.
This point is read in conjunction with the last unoccupied time
to allow the user to know the last time and day when the zone
became unoccupied. If the zone controller is following a global
schedule this point will remain at default.
Maximum Cooling
Airflow
Last Unoccupied
Day:
Display Range
Default Value
MON, TUE, WED,
THU, FRI, SAT, SUN
No display (Blank)
Calibration:
Display Range Dsable/Enable
Default Value Dsable
Network Access Read /Write
Network Access None
→
Last Unoccupied Time — This variable displays the last time
of day when the zone changed from occupied to unoccupied
mode. This point is read in conjunction with the last unoccu-
pied day to allow the user to know the last time and day when a
zone became unoccupied. If the zone controller is following a
global schedule this point will remain at default.
Minimum Cooling Airflow Calibration — Enabling the Min-
imum Cooling Airflow Calibration will cause the airflow CFM
set point to change to the Minimum Cooling set point. The ac-
tual airflow, damper position, and velocity pressure readings
will be displayed.
If the set point is not correct, it may be changed from this
screen by forcing the Airflow set point to the desired value.
The value will be written to the set point schedule in the Mini-
mum Cool CFM set point, and the zone controller will begin to
control to the new value.
Last Unoccupied
Time:
Display Range
Default Value
00:00 to 24:00
0:00
Network Access None
ZONE AIR BALANCE/COMMISSIONING TABLE —
The Zone Air Balance/Commissioning Table is used to display
the air balance variables. See Table 15.
Commissioning Mode — This variable is used to put the zone
controller into the commissioning mode. Force this point to en-
able. The zone controller will be ready to accept a command to
perform the tests and functions on this screen.
The airflow can be measured using test and balance equip-
ment and compared to the actual reading on the screen. If the
value measured requires adjustment to the value on the screen,
force the value on the screen to the value measured. The zone
controller will take the value and calculate a new offset.
The Offset configuration is included for precision applica-
tions where the minimum airflow is critical and not zero. The
Offset configuration should not be used to zero the airflow
transducer since an auto zero test is included in the normal
function of the zone controller and is automatically performed
each time the equipment fan is disabled (or every 72 hours for
systems which run the fan continuously). After performing air
balance testing using the Air Balance Maintenance screen, it is
a good idea to upload and save the Airflow set points, Calibra-
tion Gain, and Offset values.
NOTE: Commissioning mode will automatically be dis-
abled after one hour.
Commissioning
Mode:
Display Range
Default Value
Dsable/Enable
Dsable
Network Access Read /Write
Damper Actuator/Transducer Calibration — The Damper
Actuator Transducer calibration is the first calibration which
should be performed on a newly installed actuator. The zone
controller will command the actuator to close and read the
feedback potentiometer to determine the zero position of the
damper. It will then command the damper to fully open. The
zone controller will read the potentiometer to determine the
maximum open position. Damper positions from closed to
maximum open will be scaled to read 0 to 100% for the damp-
er position.
The zone controller will then close the damper and open it
once more to zero calibrate the airflow sensor. The entire
calibration procedure can take up to 3 minutes. If the damper
fails the test or the airflow calibration is unable to be complet-
ed, the Auto-Calibration point will indicate an Alarm.
Minimum Cooling
Airflow
Calibration:
Display Range Dsable/Enable
Default Value Dsable
Network Access Read /Write
Fan Override — This variable can be used to test the fan on se-
ries and parallel fan powered terminals. Enabling this point will
cause the terminal fan to run until this point is disabled or the
commissioning mode is ended.
Fan Override:
Display Range
Default Value
Dsable/Enable
Dsable
Network Access Read /Write
Damper Actuator
Transducer
Calibration:
Display Range Dsable/Enable
Default Value Dsable
Network Access Read /Write
501
47
→ Table 15 — Zone Air Balance/Commissioning Table
DESCRIPTION
Commissioning Mode
Damper/Transducer Calibration
Maximum Cooling
Minimum Cooling
Heating Override
Fan Override
CFM Set Point
Actual Airflow
Primary Damper Position
Measured Velocity Pressure
Supply Air Temperature
Auto-Calibration
DEFAULT
Dsable
Dsable
Dsable
Dsable
Dsable
Dsable
0 cfm
0 cfm
100 %
0.000 in. wg
0.0 F
Normal
1.000
POINT NAME
CMODE
CALIBRAT
MAXCOOL
MINCOOL
HEATOVER
FANOVER
COMCFM
AIRFLOW
DMPPOS
MVP
SAT
CAL
CAL_GAIN
Calibration Gain
Heating Override — This variable can be used to test the heat
outputs. Enabling this variable will cause the heat to be modu-
lated or staged to full heat until this point is disabled or the
force released. Ducted reheat operation will be controlled so as
not to exceed the configured maximum duct temperature. The
supply-air temperature is included on this screen to verify that
the heat is operating.
Display Range
by velocity pressure transducer high alarm
limit)
Default Value
Network Access Read Only
0.000 to 2.000 (Limited
0.000
Supply-Air Temperature — This variable displays the supply-
air temperature for ease of verifying the heat operation during
the heat test.
Heating Override: Display Range
Default Value
Dsable/Enable
Dsable
Supply-Air
Temperature:
Network Access Read /Write
Display Units
Display Range
Default Value
F (C)
-40.0 to 245.0
0.0
Airflow CFM Set Point — This variable displays the current
airflow set point that the zone controller is controlling to. Dur-
ing the calibration tests this value can be forced, which will
change the set point configuration for the value being tested.
Network Access Read /Write
Auto-Calibration — This variable will display “Normal” if the
actuator and airflow transducer calibrations are successful. If
damper or transducer calibration was not successful, this point
will display “Alarm” and the zone controller will broadcast the
appropriate alarm (if configured to transmit alarms).
Airflow CFM
Set Point:
Display Units
Display Range
CFM
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Auto-Calibration: Display Range
Default Value
Normal/Alarm
Normal
Default Value
0
Network Access Read /Write
Network Access Read Only
Actual Airflow Display — This variable shows the actual air-
flow being measured, based on the inlet size configured. Dur-
ing the Maximum and Minimum Cooling Airflow calibration
tests this value can be forced, which will correct the multiplier
or offset used to calculate the airflow.
Calibration Gain — Air terminal testing by industry standards
is done with straight duct, upstream of the terminal. Since most
applications are not installed in this manner, the actual airflow
from the terminal, at balancing, may not equal the reading from
the zone controller.
The Calibration Gain is used for making fine tuning adjust-
ments to the airflow calculation. This number is calculated au-
tomatically by the zone controller after input to the air balance
maintenance screen. The Calibration Gain can also be entered
manually in the service configuration CONFIG screen.
Actual Airflow: Display Units
Display Range
CFM
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Default Value
Network Access Read /Write
0
A number of .95 entered into the Calibration Gain variable
will cause the maximum airflow to be reduced to 95% of the
calculated value. A number of 1.05 would cause readings to
become 5% higher. The Calibration Gain is adjusted on the Air
Balance maintenance screen when performing the Maximum
Airflow Calibration and will have the greatest affect on the air-
flow at maximum CFM.
After performing the air balance procedure using the air bal-
ance maintenance screen, it is recommended to upload and
save the Airflow Configuration, Calibration Gain, and Offset
settings.
Primary Damper Position — This variable displays the cur-
rent damper position. During CFM Balancing, this variable is
used to display the position of the damper. This value can
be used to see if the damper is fully open and the system air is
sufficient.
Primary Damper
Position:
Display Units
Display Range
Default Value
% (open)
0 to 100
100
Network Access Read Only
Measured Velocity Pressure — This variable displays the
measured velocity pressure, which is used to check accuracy
during test and balancing of the terminal. If the pressure
appears to be much different than that measured with a Magna-
helic gage, the transducer can be forced to recalibrate its zero
by enabling the Damper/Transducer Calibration.
Calibration Gain: Display Range
Default Value
0.000 to 9.999
1.000
Network Access Read Only
Measured Velocity
Pressure:
Display Units
in. wg
501
48
ZONE MAINTENANCE TABLE — The Zone Maintenance
table is used to display zone set points and variables. See
Table 16.
Occupied — This variable indicates if the zone controller is
operating in the occupied mode.
unoccupied mode. This variable will display any space temper-
ature sensor slidebar offset that is being applied.
Cool Master
Reference:
Display Units
Display Range
Default Value
F (C)
45.0 to 99.9
90.0
Occupied:
Display Range
Default Value
No/Yes
No
Network Access Read/Write
Network Access Read Only
Primary Damper Airflow Reference — This variable dis-
plays the current controlling airflow set point.
→
Linkage Slave — This variable displays if air source linkage is
in effect.
Primary Damper
Airflow
Display Units
Display Range
CFM
Linkage Slave: Display Range
Default Value
No/Yes
No
Reference:
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Network Access Read Only
Linkage Master — This variable displays if this zone control-
ler is functioning as a linkage master.
Default Value
0
Network Access Read /Write
Linkage Master: Display Range
Default Value
No/Yes
No
Primary Damper Position — This variable displays the cur-
rent damper position.
Network Access Read Only
Primary Damper
Position:
Timed Override in Effect — This variable indicates if a timed
override is in effect.
Display Units
Display Range
Default Value
% (open)
0 to 100
100
Timed Override
in Effect:
Display Range
Default Value
No/Yes
No
Network Access Read/Write
Secondary Damper Airflow Reference — This variable dis-
plays the current controlling airflow set point for the secondary
damper.
Network Access Read Only
Set Point Offset (T-56) — This variable displays the degrees
of offset when using a 33ZCT56SPT space temperature sensor
with set point adjustment. The slidebar on the sensor will adjust
the desired temperature in that zone, up or down, when it is
moved. The Set Point Offset (T-56) variable can disable set
point offset (set to 0).
Secondary Damper
Airflow
Display Units
Display Range
CFM
Reference:
0 to 9999 (Limited by
velocity pressure transducer high alarm
limit)
Default Value
Network Access Read /Write
Set Point
Offset (T-56):
0
Display Units
Display Range
Default Value
delta F (delta C)
0.0 to 15.0
0.0
Heat Enable — This variable displays the demand for heat in
the space. The space temperature must be below the appropri-
ate heat set point.
Network Access Read Only
Cool Master Reference — This variable displays the cooling
master reference from the set point schedule. This should be
the occupied cool set point when the zone is in occupied
mode or the unoccupied cool set point when the zone is in
Heat Enable:
Display Range
Default Value
Dsable/Enable
Dsable
Network Access Read Only
→ Table 16 — Zone Maintenance Table
DESCRIPTION
DEFAULT
No
POINT NAME
ZONEOCC
DAVCTL
LINKMAST
TIMOV
T56OFF
CCMR
PISMR
PDSMR
SDSMR
HEATENA
HCMR
HSMR
TCA
RHA
Occupied
Linkage Slave
Linkage Master
No
No
No
Timed Override in Effect
Set Point Offset (T-56)
Cool Master Reference
PI Primary Damper Reference
PD Primary Damper Reference
Secondary Damper Reference
Heat Enable
Heat Master Reference
Heat Submaster Reference
Temperature Control Airflow
Relative Humidity Airflow
Air Quality Airflow
0.0 F
90.0 F
0 cfm
100 %
0 cfm
Dsable
55.0 F
0 F
100 %
0 %
0 %
AQA
Cooling in Effect
Heating in Effect
RH in Effect
AQ in Effect
Unoccupied Dehumidification
Cooling Energy
Heating Energy
Yes
No
No
No
No
0 Btu
0 Btu
COOLFLAG
HEATFLAG
RHFLAG
AQFLAG
UNOCCDH
COOLBTUS
HEATBTUS
49
801
Heat Master Reference — This point displays the occupied
heat set point if occupied, or the unoccupied heat set point if
unoccupied. This variable will display any space temperature
sensor slidebar offset that is being applied.
Cooling in Effect — This variable displays if the air source is
in the Cooling mode and if the terminal is using the cooling air-
flow set points.
Cooling In Effect: Display Range
Default Value
No/Yes
Yes
Heat Master
Reference:
Display Units
Display Range
Default Value
F (C)
Network Access Read Only
40.0 to 90.0
55.0
Network Access Read/Write
Heating in Effect — This variable displays if the air source is
in the Heat mode and if the terminal is using the heating air-
flow set points.
Heat Submaster Reference — If heat is enabled, this variable
displays the desired supply air temperature calculated to heat
the space. This is a result of the heating PID loop calculation.
Heating In Effect: Display Range
Default Value
No/Yes
No
Network Access Read Only
Heat Submaster
Reference:
Relative Humidity Control in Effect — This variable indi-
cates if the relative humidity control is active.
Relative Humidity
Control In Effect: Display Range
Default Value
Network Access Read Only
Air Quality Control in Effect — This variable indicates if the
air quality control is active.
Air Quality
Control In Effect: Display Range
Default Value
Display Units
Display Range
Default Value
F (C)
0 to 240
0
No/Yes
No
Network Access Read/Write
Temperature Control Airflow — This variable displays the
airflow set point determined from the temperature loop calcula-
tion. The zone controller compares the Temperature, Relative
Humidity, and Air Quality loop. The greatest of the three will
become the primary damper airflow reference.
No/Yes
No
Temperature
Control Airflow: Display Units
Display Range
%
0 to 100
100
Network Access Read Only
Unoccupied Dehumidification — This variable indicates if
unoccupied dehumidification control is in effect.
→
Default Value
Network Access Read Only
Unoccupied
Dehumidification: Display Range
Default Value
Relative Humidity Control Airflow — This variable dis-
plays the airflow set point determined from the relative
humidity loop calculation. The zone controller compares the
Temperature, Relative Humidity, and Air Quality loop. The
greatest of the three will become the primary damper airflow
reference.
Yes/No
No
Network Access Read Only
Cooling Energy — This variable displays the amount of pri-
mary air source cooling BTUs being provided to the space by
the terminal. A CCN compatible air source or PAT sensor on a
linkage master is required.
Cooling Energy: Display Units
Display Range
Relative Humidity
Control Airflow: Display Units
Display Range
%
0 to 100
0
Btu
0 to 999999
0
Default Value
Network Access Read Only
Default Value
Network Access Read Only
Air Quality Control Airflow — This variable displays the air-
flow set point determined from the air quality loop calculation.
The zone controller compares the Temperature, Relative
Humidity, and Air Quality loop. The greatest of the three will
become the primary damper airflow reference.
Heating Energy — This point displays the amount of primary
air source heating BTUs being provided to the space by the ter-
minal. This value will not include zone level heating. A CCN
compatible air source or PAT sensor on a linkage master is
required.
Heating Energy: Display Units
Display Range
Air Quality
Control Airflow: Display Units
Display Range
%
0 to 100
0
Btu
0 to 999999
0
Default Value
Default Value
Network Access Read Only
Network Access Read Only
801
50
Copyright 1999 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 533-355 Printed in U.S.A. Form 33ZC-1SI Pg 52 303 11-99 Replaces: New
Book 1
4
Tab 11a 13a
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