Y8150 Fresh Air Ventilation System,
W8150 Fresh Air Ventilation Control
PRODUCT DATA
FEATURES
•
Designed to help meet local ventilation codes and
standards, including ASHRAE 62.2-2010 standard,
“Ventilation and Acceptable Indoor Air Quality in
Low-Rise Residential Buildings.”
•
•
•
Microcontroller optimizes the air delivery schedule to
make efficient use of normal HVAC run times.
Easy-to-use input dials allow customized ventilation
for each installation.
Test mode that includes immediate feedback to
installer to confirm that air delivery requirements of
selected ventilation standard are being met.
•
•
Economical supply-only ventilation; works with forced
air system.
Can be used with other equipment, such as an HRV/
ERV, for balanced ventilation.
APPLICATION
IMPORTANT
Please read these instructions and keep them in your
records.
The Y8150 Fresh Air Ventilation System, W8150 Fresh Air
Ventilation Control provide fresh air to a home. The control
operates a fresh air intake damper and, when necessary,
activates the main HVAC blower to efficiently meet ASHRAE
ventilation rates.
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
XFMR
1
2
G
F
R
C
20
19
RC
CC
3
C
H
4
18
17
W
5
GT
6
7
16
15
8
9
10
14
11
12
BEDROOMS
AREA (SQFT)
VENT AIRFLOW (CFM)
13
M19990
W8150 QUICK GUIDE
No.
Name
Description
Function
1
GF
Equipment fan
Allows W8150 to pass thermostat calls and, when necessary, turn on
system fan for ventilation. This should be the only connection to G on the
HVAC equipment.
2
3
4
RC
CC
CH
24 Vac cooling system
power
Provides power to GF terminal to operate system fan, when necessary.
24 Vac cooling system
common
Allows W8150 to monitor when system fan is energized.
24 Vac heating system
common
Allows W8150 to monitor thermostat heat calls when W is energized.
Allows W8150 to monitor when heating is energized.
5
6
W
Heating
GT
Thermostat (or other
control) fan terminal
Allows W8150 to monitor when GT is energized. All external equipment that
controls the system fan should be wired to this terminal.
7
Switch
On (optimal ventilation)
Override
Off (Remote Only)
On (optimal ventilation) – W8150 ventilates, based on control settings.
Override – W8150 runs ventilation continuously.
Off (Remote Only) – W8150 supplies ventilation only when there is a
remote call.
8
9
Light
Light
DIP1
DIP2
Green
Indicates device is powered and operating normally. Used in Test Mode to
signal if dial settings meet chosen standard.
Red
Indicates the device is not operating normally. Used in Test Mode to signal
if dial settings do not meet chosen standard.
10
11
Ventilation limit
Ventilation standard
Choose between 60% (default) and 100% maximum fan run time allowed
by W8150 for ventilation.
Choose between ASHRAE 62.2 (default) and 62-1999 ventilation
standards.
12
13
BEDROOMS Number of bedrooms
Used to calculate amount of ventilation necessary.
Used to calculate amount of ventilation necessary.
AREA
Square footage of
conditioned space
(SQ FT)
14
15
VENT
AIRFLOW
(CFM)
Air delivery rate through Used to calculate amount of ventilation necessary.
fresh air duct.
Test
Test button
W8150 checks dial and switch settings, activates ventilation for up to three
minutes and provides feedback to validate if chosen standard can be met.
3
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
No.
Name
Description
Function
16
REMOTE
Remote switch (two
terminals)
24 Vac powered contacts allow a remote switch closure to call for
ventilation.
17
AUX
Auxiliary (two terminals) 24 Vac dry contacts allow W8150 to control an auxiliary device, such as
exhaust fan or HRV/ERV, with a call for ventilation.
18
19
DAMPER
XFMR C
Damper (two terminals) 24 Vac powered contacts control fresh air damper.
24 Vac ventilation control Supplies power to W8150 and damper from transformer provided.
common
20
XFMR R
24 Vac ventilation control Supplies power to W8150 and damper from transformer provided.
power
Choosing a location…
INSTALLATION
When choosing locations for equipment, duct connections,
and fresh air intake, be sure to consult local code
requirements.
A fresh air duct and damper must be installed between the
outdoors and the return side of the HVAC equipment. The
W8150 control will be mounted near the HVAC system and
wired between the thermostat and the fan control.
Device
Number Component
Location
You will need…
1
2
3
Fresh air intake Install away from known sources
of pollutants such as auto
•
•
•
•
•
•
•
•
W8150 Fresh Air Ventilation Control.
damper.
exhaust, dryer vent exhaust or
chimney smoke.
transformer.
insulated ductwork.
outdoor weather hood.
starting collar.
access to 120 Vac power.
airflow measuring tool.
Fresh air duct
Damper
Install between weather hood and
upstream of equipment filter and
downstream of any duct-mounted
sensor.
Install damper in fresh air duct,
where convenient. Optionally,
install heat recovery ventilator.
TIPS:
•
•
•
To meet ASHRAE 62.2-2010, system must have at least a
MERV 6 filter installed.
In cold climates, balanced ventilation is recommended. An
exhaust fan or heat recovery ventilator can be used.
Humid climates may require additional dehumidification
equipment.
4
5
6
Control
Locate the control for convenient
access and for easy wire routing.
Transformer
Filter
Locate where convenient for line
voltage connection.
Locate filter downstream of fresh
air intake.
TYPICAL ATTIC
INSTALLATION
3
4
2
5
6
1
3
3
2
2
HRV/ERV
1
1
4
4
tt
Ctr
t
onnou
e
o
l
TYPICAL BASEMENT
INSTALLATION
TYPICAL HRV/ERV
INSTALLATION
e
t
a
6
6
M19993
68-0282—07
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
Installing fresh air damper, ducting,
Wiring the control…
and control…
1. Disconnect power from HVAC system.
2. Install the weather hood, ducting, and damper following
local practices. Be sure all duct and insulation seams
are tightly sealed.
CAUTION
Can cause personal injury or equipment damage.
Disconnect power to all systems before beginning
installation.
Electrical Hazard.
3. Mount the transformer and control.
TIPS:
1. Wire the control. See wiring diagrams in Fig. 1-10 as
listed below. All wiring must comply with local codes,
ordinances, and regulations.
•
In general, larger ducting allows higher airflow, minimizes
additional fan run time and may be needed for larger
homes.
Installing a damper directly to the return duct may be
convenient to support the damper and reduce ducting.
Fresh air connection should be downstream of sensors
(such as a humidistat) in return air plenum.
The EARD6 end stops can be used to reduce the amount
of airflow in the duct. To prevent complete opening, loosen
(but do not remove) the wing nut and move the upper lever
until the desired position is reached. Tighten the wing nut.
Keep the lower lever in the position shown.
2. Reapply power to system and control.
•
•
•
TIP:
•
Control package allows wire routing through side slots and
bottom openings.
System Hookup Diagrams
Fig. No. Page No.
Single transformer, conventional
Dual transformer, conventional
Multi-stage, conventional
1
2
3
4
5
10
10
10
10
11
Heat pump without emergency heat
Heat pump with emergency heat
UPPER LEVER
WING NUT
Accessory Hookup Diagrams
Wiring with a PC8900 Thermostat
Wiring with a remote switch/timer
Wiring to an HRV/ERV
Fig. No. Page No.
6
7
11
11
11
11
12
8
Wiring an exhaust fan
9
LOWER LEVER
M20155
Wiring a fan for a steam humidifier
10
5
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
Measuring airflow…
About the control settings…
1. Make sure all HVAC system air filters are clean and
installed.
2. Push Test button:
Dial Settings
These settings allow the installer to customize the control to
meet the ventilation requirements for the home.
•
•
Control opens damper and turns on HVAC fan for
three minutes.
A red or green light is flashing; you can now measure
airflow.
Ventilation Standard
Building codes are different everywhere. The W8150
3. Follow instrument instructions for measuring airflow.
Ventilation Control can be configured to operate based on:
TIPS:
•
•
ASHRAE 62.2.
ASHRAE 62-1999
•
•
•
•
You can exit the test mode at any time by pressing the test
button again.
See Conversion Table (located after wiring diagrams) for
quick area and airflow setting conversions.
For future reference, record the air flow on the inside of the
device cover.
Pitot Tubes and flow measuring stations are commonly
used airflow measuring devices.
TIP:
•
Clear understanding of local codes and practices is
required to make sure the ventilation system is installed
and configured correctly. Generally, ASHRAE 62.2 control
method is recommended and can meet many existing local
codes.
Code/Standard
Setting
General Ventilation
Requirements
ASHRAE 62.2
Washington State Energy
Code
ASHRAE 62.2
Canadian Building Code*
Minnesota Energy Code
ASHRAE 62.2
62-1999
2002 International
Residential Code
62-1999
*In Canada, interlocking exhaust equipment
may be required for balanced ventilation.
Ventilation Limit
This setting determines the maximum amount of time that the
fan runs for ventilation.
Ventilation Limit*
60%
ASHRAE 62.2
1
2
100%
62-1999
Ventilation
Standard
BEDROOMS
M22009
Setting ventilation limit and ventilation standard.
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
TIPS:
Setting the control...
•
Ventilation control reads new dial setting only when test
button is pushed or power is cycled. To ensure dial settings
are read, push test button after any changes are made.
For single bedroom homes, set the bedrooms dial to 2 (this
may result in more ventilation than the minimum required).
For homes having more than five bedrooms and only a
single ventilation system, set the bedrooms dial to 5 (this
may result in less ventilation than the minimum required).
For conditioned square feet, set area (sq ft) dial to the
nearest value.
For airflow, set airflow (cfm) dial to the nearest value.
Vaulted ceilings do not need to be considered when setting
this control.
For homes with multiple systems: Honeywell recommends
a ventilation control and fresh air intake for each system.
Measure ventilation airflow for each system independently.
Refer to Multi-system Setup Example for further details.
1. Be sure power is turned on.
2. Set the Ventilation Standard on the control.
3. Set the bedrooms dial.
4. Set the area (sq ft) dial.
5. Set the airflow (cfm) dial.
6. Press the test button and observe the lights:
•
•
Green light is flashing.
The dial settings meet the chosen standard.
Red light is flashing.
There is not enough fresh air delivered to meet the
requirements of the selected standard. See
Troubleshooting section.
•
•
•
7. Record settings on the label inside the cover as shown
•
in the diagram.
Date installed:________________________
W8150A 1001
Ventilation Limit*
G
F
R
24 VAC
XFRM
R
C
C
C
C
H
C
60%
ASHRAE 62.2
1
2
100%
62-1999
HVAC
Stat
DMP
DMP
AUX
AUX
REM
REM
Damper
Ventilation
Standard
Installer
Test
W
ERV/Fan
GT
Timer/Switch
_________
bedrooms
_________
area (sq. ft.)
Record settings above
_________
airflow (cfm)
Date installed:________________________
Ventilation Limit*
W
8150A 1001
GF
RC
R
C
24 VAC
XFRM
60%
ASHRAE 62.2
1
2
100%
62-1999
HVAC CC
CH
DMP
DMP
AUX
AUX
REM
REM
Damper
Ventilation
Standard
Installer
Test
W
ERV/Fan
Stat GT
Timer/Switch
_________
bedrooms
_________
area (sq. ft.)
_________
airflow (cfm)
Reco
r
d
setting
Para espa
*See Instructions Voir mode d'emploi en français inclus
s
above
Honeywell
Golden Valley, MN 55422
or call 1-800-468-1502
ñol ver las instrucciones
50001159-001 Rev.
A
M19991
Customizing the ventilation control.
7
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
CHECKOUT
In this section, make sure the ventilation system is operating
correctly.
TIP:
•
W8150 Ventilation Control automatically exits test mode
after three minutes.
1. On thermostat, set Fan switch to Auto and System
switch to Off.
2. Set any remote switches throughout the house in the
Off position.
3. On the W8150, set the control switch to Off (remote
only).
4. Press Test button for two seconds to enter test mode:
•
•
•
A light on the control begins flashing.
The HVAC system fan comes on.
The damper moves to the Open position.
5. Press the Test button again to exit test mode:
•
•
•
No lights on the control are on.
The HVAC system fan turns off.
The damper returns to the closed position.
6. Return the thermostat, ventilation control, and remote
switches to the original settings.
7. Refer to Troubleshooting section, if needed.
TROUBLESHOOTING
Problem
Possible cause
What to do
Flashing red light
during test mode
Not enough airflow
•
•
Measure airflow and check dial setting.
See Problem: Not enough airflow.
Ventilation on-time limit
setting
•
If the device is set to 60%: Set the ventilation control to 100% maximum
on time. This allows the HVAC fan to run up to 100% of the time. It may be
preferable to increase airflow.
If the device is set to 100%: There is not enough airflow through the
fresh air duct.
Ventilation continues to occur according to the settings but chosen
standard may not be met.
(The current settings
do not meet the
selected ventilation
requirement)
•
•
Flashing red light
during normal
operation
Low voltage
•
Check the voltage from the transformer for at least 20 Vac. If voltage is
OK, replace W8150 Control. If voltage is not OK, disconnect damper and
remote switch connections and check again. If voltage does not return to
at least 20 Vac, replace transformer.
No light on ventilation No power to control
control when switch
set to:
•
•
Verify 24 volt input to R and C terminals on ventilation control.
Check wiring connections per appropriate system diagram and replace
transformer, if necessary.
•
•
•
On
Override Off/
Remote Only and a
remote switch is on.
Device malfunction
Wiring
•
•
•
Cycle power off to control for ten seconds and recheck. If control does not
recover, replace ventilation control.
HVAC fan does not
come on after pressing
Test button.
Check wiring connections per appropriate system diagram.
HVAC system does not
have power
Restore power to the HVAC system.
68-0282—07
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
Problem
Possible cause
What to do
HVAC fan is running all Device is set to override
•
•
Move switch to On position to allow for automatic operation.
the time
Remote switch is on
Adjust remote switch to desired position.
Thermostat Fan switch is • Normal operation.
in On position
HVAC system is running
to satisfy heating or
•
Normal operation.
cooling requirements.
Ventilation limit is set to
100% ventilation limit.
•
Set ventilation limit to 60%. The control may not be able to meet the
recommended ventilation requirements.
Increase ventilation airflow through fresh air duct and adjust settings.
•
•
Low ventilation air flow.
See Problem: Not enough airflow.
•
•
Damper does not
open during
checkout or
Damper does not
close.
Incorrectly wired.
•
•
•
Check wiring connections per appropriate wiring diagram.
Verify 24 Vac applied to actuator.
Transformer output.
Damper actuator motor
failure or mechanical
failure.
Manually open damper and verify free movement; damper should return
to closed position when no power is applied.
If damper moves freely but does not operate when 24 volts is applied,
replace damper actuator.
•
•
If damper does not move freely, replace fresh air damper.
Cooling compressor
comes on when there
is no cooling call from
the thermostat.
Incorrectly wired.
•
•
Check wiring connections per appropriate system diagram.
An isolation relay may be required when appliances are connected to the
GT terminals on the ventilation control. (For an example, see wiring a fan
for a steam humidifier diagram.)
Not enough airflow
Obstruction or duct size
•
•
•
•
•
•
Check for obstructions in the fresh air duct and weather hood.
Check for kinks in ductwork.
Make sure all manual dampers are fully open.
Make sure the stops on the EARD damper allow it to open fully.
Increase duct size.
Add a booster fan to the fresh air duct.
NOTE: After any changes to the ductwork, repeat the Measuring Airflow
section.
9
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
WIRING DIAGRAMS
Consult thermostat Installation Instructions for alternate
terminal designations.
HVAC
HVAC
R
C
W1
W2
Y1
Y2
G
R
C
W
Y
G
W8150A
G
R
C
C
F
C
C
H
W8150A
GF
RC
CC
CH
W
G
T
W
G
T
R
RC
C
W1
W2
Y1
Y2
G
System
Heat
AM
Fan
Tue
Wake
Room
DST
Auto
R
RC
W
Y
G
System
Heat
AM
Fan
Tue
Wake
Room
M19996
DST
Auto
Fig. 3. Multi-stage conventional system.
M19994A
Fig. 1. Single transformer, conventional system.
HVAC
HVAC
R
C
Y
G
O
HEATING
COOLING
W8150A
R
C
W
R
C
Y
G
G
R
C
C
F
C
C
H
W8150A
GF
RC
CC
CH
W
G
T
W
G
T
R
RC
W
Y
G
O/B
System
Heat
AM
Fan
Tue
Wake
Room
DST
Auto
NOTE:
REMOVE FACTORY
INSTALLED JUMPER
BETWEEN CC AND CH
ON W8150.
R
RC
W
Y
G
M19997A
System
Heat
AM
Fan
Tue
Wake
Room
DST
Auto
Fig. 4. Wiring heat pump without emergency heat.
M19995A
Fig. 2. Dual transformer, conventional system.
68-0282—07
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
HVAC
W2
AT120
EARD-6
R
C
Y
E
G
O
XFMR
FAN TIMER
R
W8150A
W8150A
GF
RC
CC
CH
C
V
e
n
t
il
a
t
i
o
n
Control
Auto
Continuous
Off
(Remote Only)
Service
V
e
nt
il
a
t
i
o
n
Control
W
G
T
M22000
R
C
W1
Y1
W
2
E
G
O/B
System
Heat
AM
Fan
Tue
Wake
Room
DST
Auto
Fig. 7. Using a remote switch or timer.
M19998A
AT120
HR150/ER150
Fig. 5. Wiring heat pump with emergency heat.
XFMR
R
EARD-6
W8900
AT120
W8150A
C
RED
BLACK
V
e
n
tila
tio
n
Control
Auto
1
Continuous
Off
(Remote Only)
FAN TIMER
Service
XFMR
V
e
nt
ila
t
io
n
Control
®
R
C
W8150A
RH
RC
NOTES:
– BALANCE THE HRV/ERV TO 160 CFM OR LOWER.
– SET VENTILATOR SPEED KNOB TO 0.
HUM
HUM
VNT
VNT
M22001
1
EARD DAMPER NOT USED WITH HRV/ERV.
NOTE:
Fig. 8. Wiring to an HRV/ERV.
CONFIGURE PC8900 SO ALL VENT PROGRAM
SETTINGS ARE OFF; THE VENT BUTTON ON THE
PC8900 THEN SERVES AS A REMOTE AND THE W8150
CONTROLS BACKGROUND VENTILATION.
M19999
EARD-6
AT120
EXHAUST FAN
120 VAC
Fig. 6. Wiring with a PC8900.
XFMR
R
C
W8150A
L1
V
e
n
t
il
a
t
i
o
n
Control
R8222
Auto
120
VAC
BLUE
RED
Continuous
Off
(Remote Only)
Service
V
e
nt
ila
ti
o
n
Control
L2
BLUE
BLACK
AT120
FAN TIMER
M22002
Fig. 9. Wiring an exhaust fan.
11
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Y8150 FRESH AIR VENTILATION SYSTEM, W8150 FRESH AIR VENTILATION CONTROL
•
100 cfm.
HVAC
CONVERSION TABLE
R
C
W1
W2
Y1
Y2
G
W8150A
GF
RC
CC
CH
Area
Airflow
sq ft
1000
1300
1600
1900
2200
2500
2800
3100
3400
3700
4000
4300
4600
sq m
93
cfm
40
lps
19
24
28
33
38
42
47
52
57
61
66
71
76
HE440
FAN
W
121
149
177
204
232
260
288
316
344
372
399
427
50
G
T
60
RED
BLACK
R8222
70
80
90
BLUE
BLUE
100
110
120
130
140
150
160
R
RC
C
W1
W
2
Y1
Y2
G
System
Heat
AM
Fan
Tue
Wake
Room
DST
Auto
M22021A
Fig. 10. Wiring fan for a steam humidifier.
Airflow
Multi-System Setup Example
6 in. duct
(15.2 cm)
7 in. duct
(17.8 cm)
Total square feet and bedrooms should be proportionately
split between the ventilation controls based on sq ft served by
each system regardless of where the bedrooms are located.
cfm
fpm
ms
1.0
1.3
1.6
1.8
2.1
2.3
2.6
2.8
3.1
3.4
3.6
3.9
4.1
fpm
ms
40
50
204
255
306
357
407
458
509
560
611
662
713
764
815
150
187
225
262
299
337
374
412
449
486
524
561
599
0.8
1.0
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.0
Example: 5,000 sq ft, six bedrooms:
System 1:
60
•
•
•
serves 3200 sq ft,
two bedrooms.
fresh air intake measured at 127 cfm.
70
80
System 2:
90
•
•
•
serves 1800 sq ft,
four bedrooms
fresh air intake measured at 98 cfm.
100
110
120
130
140
150
160
Set W8150 for System 1:
•
•
•
3100 sq ft,
four bedrooms
130 cfm.
Set W8150 for System 2:
•
•
1900 sq ft,
two bedrooms
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
® U.S. Registered Trademark
© 2011 Honeywell International Inc.
68-0282—07 T.D. Rev. 02-11
Printed in U.S.A.
Toronto, Ontario M1V 4Z9
customer.honeywell.com
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