Cooling Model
DFS2A318J2A
DFS2A324J2A
Heat Pump
51302618919-A 0606
DFS2H318J2A
DFS2H324J2A
DFS2A/H 2 X 09, 2 X 12
Duct Free Systems
R-22
Installation, Start-Up and Service Instructions
•
Consult local building codes and National Electrical Code
(NEC, U.S.A.) for special installation requirements.
CONTENTS
Page
SAFETY CONSIDERATIONS................................ 1
GENERAL...........................................................1-4
INSTALLATION ................................................ 4-11
Indoor Unit Installation ........................................ 4
Outdoor Unit Installation ..................................... 6
Power Supply ....................................................... 7
Leak Test ............................................................... 7
Wiring Diagrams..............................................9-10
START-UP ........................................................... 11
System Checks................................................... 11
CARE AND MAINTENANCE............................... 11
Outdoor Units ..................................................... 11
Indoor Units ........................................................ 11
To Clean the Indoor Unit Front Panel ............... 11
To Clean Indoor Coil .......................................... 11
Air Filters for Indoor Units ................................ 11
SERVICE ............................................................. 11
TROUBLESHOOTING....................................12-15
Max. cable length. Total voltage drop should not exceed 1V.
Therefore max. length:
For #18 AWG
For #16 AWG
For #14 AWG
24.3 Feet (7.4 m)
37.7 Feet (11.5 m)
50.0 Feet (18 m)
•
Use only type "G" or "C" fuses. Use single length power
cable without extension. Allow sufficient space for airflow
clearance on condensing units for wiring, refrigerant piping,
and servicing unit. See Fig. 1 and 2 for minimum required
distances between unit and walls or ceilings.
•
•
Indoor and outdoor units should be installed at a
Minimum length of 10 ft. apart.
Maximum line length of 50 ft. and
vertical separation of 30 ft.
Do not install indoor units near a direct source of heat such as
direct sunlight, steam or flame.
CAUTION
Do not bury more than 36 in. of refrigerant pipe in the ground. If
any section of pipe is buried, there must be a 6 in. vertical rise to
the valve connections on the outdoor units. If more than the rec-
ommended length is buried, refrigerant may migrate to the cooler
buried section during extended periods of system shutdown. This
causes refriger-ant slugging and could possibly damage the com-
pressor at start-up.
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equip-
ment can be hazardous due to system pressures, electrical compo-
nents, and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should
install, start-up, and service this equipment.
Untrained personnel can perform basic maintenance func-
tions such as cleaning coils. All other operations should be per-
formed by trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the equip-
ment.
TOP (min.)
2" (0.6m)
Follow all safety codes. Wear safety glasses and work gloves.
Keep quenching cloth and fire extinguisher nearby when brazing.
Use care in handling, rigging, and setting bulky equipment.
WARNING
LEFT (min.)
6" (0.15m)
Before installing or servicing system, always turn off main power
to system and install lockout tag on disconnect. There may be
more than one disconnect switch. Electrical shock can cause
personal injury.
FRONT (min.)
2" (0.6m)
REAR (min.)
6" (0.15m)
GENERAL
These instructions cover the installation, start-up and servic-
ing of DFC2A/DFC2H outdoor and DFF2A/DFF2H indoor units cool-
ing only and heat pump duct free systems. See Table 1 for parts
included. See Tables 2 and 3 for Physical Data.
RIGHT(min.)
2" (0.6m)
System Requirements
IMPORTANT: The Indoor units & the inter units cable
voltage is 30 VDC.
IMPORTANT: Each refrigerant line must be insulated
Separately. See line sizing requirements in tabel 2.
Fig. 1 — 38BCC/BCQ 018, 024 Outdoor Unit Clearances
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without inc.
Printed in Israel
Pg 1
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Table 2 - Physical Data - Cooling Only
INDOOR UNIT
2 X DFF2AH09J1A
2 X 9,000
13.0
2 X DFF2AH12J1A
COOLING CAPACITY (Btuh)
SEER
2 X 11,400
13.0
SYSTEM CHARGE (Ib)*
2 X 2.4
2 X 3.1
MOISTURE REMOVAL (pt/hr)
AIRFLOW (3 Speeds)
High / Med. / Low Cfm
DIMENSIONS LxHxW (in.)
REFRIGERANT TYPE
NET WEIGHT (Ib)
2 X 2.6
2 X 4.5
2 X 350 / 2 X 280 / 2 X 220 2 X 370 / 2 X 280 / 2 X 220
32 3/32x10 15/64x7 9/32 32 3/32x10 15/64x7 9/32
R-22
R-22
2 X 19.0
2 X 19.0
OUTDOOR UNIT
DFC2A318J2A
DFC2A324J2A
TUBE CONNECTIONS
Vert Lift/Vert Drop/Max Length (ft)
NOMINAL LINE SIZING
Mixed Phase...Suction (in.)
COMPRESSOR TYPE
30/30/50
30/30/50
1/4...1/2
1/4...1/2
Panasonic-2R13S126A6F Panasonic-2P17SR126B1A
DIMENSIONS LxHxW(in.)
NET WEIGHT (Ib)
35.5 X 49.5 X 12.6
226
35.5 X 49.5 X 12.6
228
METERING TYPE
Piston (Accurator)
Piston (Accurator)
LEGEND
SEER — Seasonal Energy Efficiency Ratio
*Units are shipped with a factory charge based on 25 ft of refrigerant lines.
Table 3 - Physical Data - Heat Pump
INDOOR UNIT
2 X DFF2HH09J1A
2 X 9,000
13.0
2 X DFF2HH12J1A
2 X 11,400
13.0
COOLING CAPACITY (Btuh)
SEER
HEATING CAPACITY (Btuh)
HSPF
17,200
7.7
23,600
7.7
SYSTEM CHARGE* (Ib)
2 X 2.4
2 X 3.1
MOISTURE REMOVAL (pt/hr)
AIRFLOW (3 Speeds)
2 X 2.6
2 X 4.5
2 X 350 / 2 X 280 / 2 X 220 2 X 370 / 2 X 280 / 2 X 220
High / Med. / Low Cfm
DIMENSIONS LxHxW (in.)
32 3/32x10 15/64x7 9/32 32 3/32x10 15/64x7 9/32
REFRIGERANT TYPE
NET WEIGHT (Ib)
R-22
R-22
2 X 19.0
2 X 19.0
OUTDOOR UNIT
DFC2H318J2A
DFC2H324J2A
TUBE CONNECTIONS
Vert Lift/Vert Drop/Max Length (ft)
NOMINAL LINE SIZING
Mixed Phase...Suction (in).
COMPRESSOR TYPE
30/30/50
30/30/50
1/4...1/2
1/4...1/2
Panasonic-2R13S126A6F Panasonic-2P17SR126B1A
DIMENSIONS LxHxW (in.)
SHIPPING WEIGHT (Ib)
35.5 X 49.5 X 12.6
226
35.5 X 49.5 X 12.6
228
METERING TYPE
LEGEND
Piston (Accurator)
Piston (Accurator)
HSPF - Heating Seasonal Performance Factor
SEER - Seasonal Energy Efficiency Ratio
*Units are shipped with a factory charge based on 25 ft of refrigerant lines.
NOTE: Standard Ambient Operating Limitations - 55 °F to 125 °F (12.7 °C to 51.6 °C).
3
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min.
6" (0.15m)
8"
(0.2m)
min.
8"
(0.2m)
min.
3
2
1
4
6'-8'3" (1.8-2.5m)
Fig. 3 — Refrigerant Lines
Fig. 2 — Indoor Unit Clearances
INSTALLATION
Plan the installation carefully to avoid component failures
and make installation easier.
Indoor Unit Installation
REFRIGERANT LINE ROUTING — The refrigerant lines may
be routed in any of the four directions shown in Fig. 3.
Fig. 4 — Mounting Bracket DFF2A/DFF2H 09, 12
INSTALL THE MOUNTING BRACKET
1. Carefully remove the mounting bracket, which is
connected to the back of the indoor unit's base with screws.
2.5-IN.
2. Position the mounting bracket on the wall and level it
using a spirit level (see Fig. 2 for minimum required
clearance distances).
3. Mark the four drilling holes on the wall, as they appear in
Fig. 4.
4. Drill the holes, insert the wall plugs and use four long
screws to attach the mounting bracket to the wall.
Fig. 5 — Drill Holes
5. Check that the bracket is leveled and securely fastened to
the wall.
DRILL A HOLE IN THE WALL FOR DRAINAGE
AND INTER-UNIT CONNECTIONS-
To make the connections between the indoor and outdoor units,
drill a 2.5-in. hole through the wall for the refrigerant lines, drain-
age hose and control cable passage as shown in Fig. 5.
1. Mark the center of the hole to be drilled according to the
refrigerant line routing used and dimensions shown in Fig.
4.
2. Make sure to drill outwards and downwards, so that the
opening in the outside wall is at least 1/2" lower than the
opening on the inside.
3. Make sure the drainage hose is at the bottom side of the
hole.
4 . If refrigerant line route no. 1,2 or 4 are used, use a small
saw blade to carefully remove the corresponding plastic
covering on the side panel.
5. Run the outdoor sensor cable, electrical cable, refrigerant
lines, and drainage tube through the hole.
6. Fill the remaining wall hole gap with an appropriate
sealant material.
4
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WIRE THE INDOOR UNIT
REASSEMBLE
1. Strip the cables back 1/4 inch.
1. Connect the display connector to the display panel printed
circuit board.
2. Remove the unit's front panel by lifting the lower part and
pulling it gently outward and upward. See Fig. 6.
2. Put the control box cover and grille frame back on using the
appropriate screws (Steps 3 and 4 of Wire the Indoor Unit
section). Put the grille insert back on.
3. Remove the two screws from the control box cover and take
off the cover. See Fig. 7. Save the screws to reassemble.
NOTE: In general wiring the indoor unit does not require the
removal of the grille frame but in case of need do as follow:
4. Remove the two screws from the air discharge opening.
Save the screws to reassemble. See Fig. 7A.
•
•
Pull downwards and outwardston the bottom of the grille
and gently raise the frame of the top of the unit.
Once all covers are off, mount the unit onto the wall
mounting bracket. See Fig. 8 .
NOTE: Leave covers off until after the Making Drainage Con-
nections section.
Fig. 6 — Remove Grille Insert
•
Route the interconnecting unit's electric cable and the
outdoor sensor cable towards the lower right hand corner of
the indoor unit.
AUTO/OFF
FILTER RESET
FUSE
AUTO/OFF
FILTER RESET
SERVICE LED
SERVICE LED
•
Make sure that the wires are connected in accordance with
the wiring diagram on the inside of the unit front cover or
within this instruction manual.
POWER/AIRCOND
TIMER
FILTER
IR
RECEIVER
•
•
Secure the control cables to the strain relief.
For heat pump systems only, connect the outdoor sensor
TH3 to its mating black terminal. See Fig. 9.
Fig. 7 — Remove Control Cover
CAUTION
Make sure that all wires and screws are firmly fastened. Loose
wires or connections can cause damage and present a fire
hazard.
Fig. 7A - Remove the screws from the air
discharge opening.
Mount the indoor unit on the mounting bracket
MAKE DRAINAGE CONNECTIONS
1. Connect the unattached end of the drainage tube to the
drainage hose outlet.
1
2. Seal the drainage connection to prevent leakage.
3. Make sure there are no kinks, "U" bends or flattened sections
in the tube.
4. Check that the drainage functions properly. Fill the pan below
the unit's coil with water and observe that it freely drains out.
5. Make sure the drainage hose is at the bottom side of the wall
through-hole (see Fig. 5).
2
Gently push with the arrow direction
Fig. 8 — Indoor Unit Mounting
Standard Dip Switches
status from the factory
HEAT PUMP
Model-2 X12 DIP Switches location
(on the Control Box side)
Inter unit
terminal block
30VDC
HEAT PUMP
Models-2 X 09 DIP Switches location
(on the Control Box side)
Display
Connection
COOLING ONLY
Model-2 X12 DIP Switches location
(on the Control Box side)
TH1
TH2
COOLING ONLY
Models-2 X09 DIP Switches location
(on the Control Box side)
TH3
(Heat Pump Only)
Inter unit cable clamp
Fig. 9 — Outdoor Sensor Connection
5
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MAKE REFRIGERANT PIPING CONNECTIONS (OUTDOOR
UNIT) — To connect the refrigerant lines:
Make sure to properly identify and separate between the pip-
ing and control cables coming from indoor unit No. 1 and the pip-
ing and cables coming from indoor unit No. 2
ATTACH THE REMOTE CONTROLLER
MOUNTING BRACKET
1. Use the two screws supplied with the controller to attach the
mounting bracket to the wall in the location selected by the
customer (see Fig. 10 ).
Use only "L" type sealed, dehydrated copper refrigerant tub-
ing. No other type of tubing may be used. Use of other types of
tubing will void the manufacturer's warranty.
2. Install batteries in the remote control.
3. Place remote control into remote control mounting bracket.
Do not open service valves or remove protective caps from
tubing ends until all the connections are made.
4. For remote control operation, refer to the unit Owner's
Manual.
Bend tubing with special bending tools to avoid the forma-
tion of sharp bends. Take care to avoid kinks or flattening of the
tubing.
REMOTE CONTROL
Keep the tubing free of dirt, sand, moisture, and other con-
taminants to avoid damaging the refrigerant system.
REMOTE CONTROL
MOUNTING BRACKET
Avoid sags in the suction line to prevent the formation of oil
traps.
ECONOMY
TURBO-JET
Insulate each tube with 3/8-in. walled thermal pipe
insulation. Inserting the tubing into the insulation before making
the connections will save time and improve installation The
suction and mixed-phase lines should never come in direct
contact.
Fig. 10 — Attach Mounting Bracket to the Wall
(OPTIONAL)
INTER UNIT
TERMINAL BLOCK
POWER SUPPLY
TERMINAL BLOCK
N
L1
115 VAC
1
FAN (H)
2
FAN (L)
3
R.V.S
4
COMP.
5
COMMON
1
2
Fig. 11 —Wall Mounted Unit - RTX
Outdoor Unit Installation
NOTE: The outdoor unit must be installed on a solid surface
(mounting base).
HIGH/LOW
VOLTAGE METAL
BARRIER
1
N
L1
AC
115
V
FAN (H)
2
1
F
A
N
(
H
)
FAN (L)
2
F
A
N
(
L
)
3
R.V.S
3
4
COMP
.
R.V.S
5
COMMON
1
2
4
COMP
.
1
F
A
N
(
H
)
2
F
A
N
(
L
)
5
3
R.V.S
COMMON
4
COMP
.
5
COMMON
1
FAN (H)
2
FAN (L)
3
R.V.S
4
COMP
.
5
TH3 SENSOR
(HEAT PUMP ONLY)
1. Place the rubber absorption cushions (supplied with the
outdoor unit) under the unit's feets to prevent vibrations.
COMMON
2. Fasten the outdoor unit legs to the mounting base, as shown
in Fig. 12. The cushion goes between the legs and the
mounting base.
METAL CONDUIT
CONNECTION PLATE
POWER SUPPLY
CABLE
3. Be sure that the unit is leveled.
INTER UNIT CABLE
4 ABSORPTION CUSHION TO
BE PUT UNDER EACH LEG
Fig. 12 — Legs Mounting Base and Wiring
Outdoor Units Models:
DFC2A/H318J2A, DFC2A/H324J2A
6
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Operation push button for
automatic operation (23°C),
turning the a/c OFF, canceling
the malfunction indication,
and resetting the filter LED.
INDOOR UNIT 2 X 09, 2 X 12
OFF ON
TIMER
SERVICE LED
PLASTIC CONTROL
COVER
FILTER
IR RECEIVER
Fig. 12A — Indoor unit LED’s and Wiring
FLARING AND CONNECTING REFRIGERANT LINES
1. Remove the protective cap from the flare fitting.
3. Disconnect the vacuum pump. Unit should maintain 500
microns for 5 minutes.
2. Remove the protective cap from the tubing and cut to the
required length. Be sure that the cut is perpendicular and
clean, without burrs.
4. Remove the service port caps from the mixed-phase valve
and suction line valve
3. Slip the flare nut on the tubing and flare the tube end using
standard flaring tools.
5. Open the mixed-phase valve (small valve) with an Allen
wrench.
4. Tighten the nut until resistance is met. Mark the nut and the
fitting. Using a suitable wrench tighten an additional 1/4
turn. Use the following specified torque, according to
connection size:
6. Open the suction line valve (large valve) with an Allen
wrench.
7. To evacuate and charge unit No. 2 repeat steps 1 thru 6.
8. The outdoor unit is supplied with sufficient R-22
refrigerant for up to 25 ft. lineset length. Add 0.9 oz. of
refrigerant for each additional 3 ft. of tubing length.
Mixed-Phase line: Suction line:
1/4 in.-(12.3 ft-lb.) 1/2 in.-(36 ft-lb.)
Both refrigerant lines
need to be insulated separatly
9. Make sure that the valves are properly opened. Be careful not
to open them more than required as this may damage the
thread.
10. Replace the service port cap. Using refrigerant oil, lubricate
the cap beam and hand tighten until resistance is met. Use a
suitable wrench to tighten the cap by an additional 1/2 turn.
NOTE: The service valves on the outdoor unit must remain closed
until all 4 connections have been made.
EVACUATE TUBINGAND CHARGE THE SYSTEM — When
all the fittings are connected, air must be expelled, then refriger-
ant charge must be checked and adjusted. Follow the steps below.
Power Supply — See Tables 4 and 5 for electrical data and
Fig. 13-14 for system wiring diagrams.
1. Open the service port cap on the suction line valve (large
valve of unit No. 1).
Leak Test — Leak test all fittings with appropriate test equipment.
2. Connect the vacuum pump to the service port of unit No. 1
via the pressure gage and evacuate to 500 microns to
eliminate contamination and moisture.
7
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Table 4 — Electrical Data, Indoor Units — 30VDC
UNIT
VOLTAGE
30VDC
MCA*
N/A
MOCP*
N/A
FULL LOAD
AMPS
FAN MOTOR COMPRESSOR COMPRESSOR LOCKED
AMPS
AMPS
ROTOR AMPS
09J1A
12J1A
1.8
1.8
1.1
N/A
N/A
DFF2AH
30VDC
N/A
N/A
1.5
N/A
N/A
DFF2HH
LEGEND
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
*If indoor unit is powered from outdoor terminal block, the MOCP for
the outdoor unit is for both sections
NOTE: Specifications and performance data are subject to change without notice.
3095897
Table 5 — Electrical Data, Outdoor Units — 115, 1-60
UNIT
VOLTAGE
MCA*
MOCP*
FULL LOAD
AMPS
FAN MOTOR COMPRESSOR COMPRESSOR LOCKED
AMPS
AMPS
ROTOR AMPS
318J2A
324J2A
115VAC
115VAC
19.8
25
18.0
1.00
7.2
42
DFC2A
DFC2H
24.6
30
22.2
1.00
9.3
58
LEGEND
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
*If indoor unit is powered from outdoor terminal block, the MOCP
for the outdoor unit is for both sections
NOTE: Specifications and performance data are subject to change without notice.
3095897
8
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* * * R E D
K L B *
R B *
R B *
E U L B *
T H W
N R B
T H
W
N R B
D E R
L E Y / R G
L E Y / R G
K L B
K L B
G R / Y E L
G R / Y E L
K L B
K L B
L E Y / R G
R / G L E Y
D E R
N R B
N R B
T H W
T H
W
E U L B *
K L B *
R B *
R B *
* * * R E D
9
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* * * R E D
K L B *
R B *
R B *
E U L B *
T H W
N R B
T H
W
N R B
D E R
L E Y / R G
L E Y / R G
K L B
K L B
G R / Y E L
G R / Y E L
K L B
K L B
L E Y / R G
R / G L E Y
D E R
N R B
N R B
T H W
T H
W
E U L B *
K L B *
R B *
R B *
* * * R E D
10
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Indoor Units
START-UP
CAUTION
System Checks
1. Conceal the tubing where possible.
To avoid the possibility of electric shock, before performing any
cleaning and maintenance operations, always turn off power to
the system by pressing the ON/OFF button on the remote con-
trol and turn off the separate disconnect switch located near the
unit.
If the indoor unit is on a separate switch, be sure to turn this
disconnect off as well.
2. Make sure that the drainage tube slopes downward along its
entire length.
3. Ensure all tubing and connections are properly insulated.
4. Fasten tubes to the outside wall.
5. Seal the hole through which the cables and tubing pass.
CAUTION
6. Connect the air conditioner to the power source and turn it
on.
Do not wash filter in water over 120°F (to avoid shrinkage). Do
not expose filter to fire (to avoid fire damage). Do not expose
filter to direct sunlight. Clean filter more frequently when air is
extremely dirty.
7. Check all air conditioner operating modes. Refer to Owner's
Manual for operating details.
INDOOR UNIT
1. Do all the remote controller buttons function properly?
2. Do the display panel lights work properly?
3. Does the air deflection louver function properly?
4. Does the drainage work?
CAUTION
Do not attempt to clean or service components in controlbox.
To Clean the Indoor Unit Front Panel — if the front panel of the
unit becomes dirty or smudged, wipe the out-side of the panel with
a soft dry cloth. Use a mild liquid deter-gent and wipe off carefully
with a dry cloth.
OUTDOOR UNIT
1. Are there unusual noises or vibrations during operation?
2. Is noise, drain water or airflow from the unit likely to disturb
the neighbors?
To Clean Indoor Coil — To clean the coil, remove indoor unit
front panel and vacuum the coil fins, using care not to bend or dam-
age fins.
3. Are there any gas leaks?
LUBRICATION — The indoor-fan, automatic air sweep, and the
outdoor-fan motors are factory lubricated and require no oiling.
EXPLAIN THE FOLLOWING ITEMS TO THE CUSTOMER,
WITH THE AID OF THE OWNER'S MANUAL:
1. How to turn the air conditioner on and off; selecting cooling,
heating and other operating modes; setting a desired tempera-
ture; setting the timer to automatically start and stop air
conditioner operation; and the other features of the remote
controller and display panel.
Air Filters for Indoor Units
CAUTION
Operating your system with dirty air filters may damage the in-
door unit and, in addition, can cause reduced perfor-mance, in-
termittent system operation, frost build up on the indoor coil,
and blown fuses. Inspect and clean or replace the air filters
monthly.
2. How to remove and clean the air filter.
3. How to set the air deflection louver.
4. Explain care and maintenance.
5. Present the Owner's Manual and installation instructions to
the customer.
TO REMOVE AIR FILTERS — Open the unit's front panel by
lifting the lower part and pulling it gently outward and upward.
Pull out the filters.
CARE AND MAINTENANCE
TO CLEAN OR REPLACE FILTERS — Filters can be vac-uumed
or washed in warm water. Shake filter to remove any excess water,
and replace it back. If the filter has begun to break down or is torn,
replace it. Replacement filters are available through a local dealer.
The following may be performed by the equipment owner.
Outdoor Units
WARNING
Before performing recommended maintenance, be sure unit main
power switch is turned off. Failure to do so may result in electric
shock or injury from rotating fan blade.
SERVICE
The following should be performed by a qualified service techni-
cian.
CLEANING COILS — Coil should be washed out with wa-
ter or blown out with compressed air. Clean coil annually or as
required by location and outdoor air conditions. Inspect coil monthly
and clean as required. Fins are not continuous through coil sec-
tions. Dirt and debris may pass through first section, become trapped
Clean Condensate Drains — Clean all drains and drain pans at
the start of each cooling season. Check the flow by pouring water
into the drain.
between the row of fins and restrict outdoor unit airflow. Use a Clean or Replace Drain Pan — The drain pan should only be
flashlight to determine if dirt or debris has collected between coil cleaned or replaced by a qualified service technician.
sections. Clean coil as follows:
1. Place a plastic sheet on the floor to catch any water that may
spill from the drain pan.
1. Turn off unit power and install lockout tag.
2. Remove the intake grille and distribution assembly.
2. Using a garden hose or other suitable equipment, flush coil
from the outside to remove dirt. Be sure to flush all dirt and
debris from drain holes in base of unit. Fan motors are
waterproof.
3. Remove the condensate water in the drain pan by letting
water drain into a 3-gallon bucket.
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TROUBLESHOOTING (Tables 6-8, and Fig. 19)
WARNING
Be sure to check for broken wires or loose cable lugs
before troubleshooting system.
Table 6 — Service Indicators
LAMP STATUS
INDICATION
CORRECTION ACTION
Check the TH1 thermistor for correct resistance.
Check for proper connection.
1 Flash
Faulty TH1 Sensor
Replace thermistor if necessary.
Check the TH2 thermistor for correct resistance.
Check for proper connection.
2 Flashes
3 Flashes
4 Flashes
Faulty TH2 Sensor
Low Pressure
Replace thermistor if necessary.
Check system pressures.
Check refrigerant charge.
Check thermistors (TH1 and TH2) for correct resistance.
Check system pressures.
High Pressure
Check refrigerant charge.
Check thermistors (TH1 and TH2) for correct resistance.
Check operating voltage.
5 Flashes
6 Flashes
Low Voltage
High Voltage
Check electrical connections.
Check operating voltage.
Check electrical connections.
OPERATION LED.
INDICATES ERROR
POWER LED.
OFF WHEN SYSTEM IS
OPERATING AND FLASHES
WHEN SYSTEM IS IN ERROR.
(DOES NOT INDICATE ERROR CODE)
CLEAN FILTER INDICATOR
FLASHED AFTER 250 HOURS
OF OPERATION
Fig. 19— Indicator Lights
12
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Table 7 -DFS2A/DFS2H Thermistor TH-1, TH-2, and TH-3 Temperature to Resistance Conversion
TEMPERATURE
TOLERANCE
(0F)
TEMPERATURE
TOLERANCE
(0C)
MINIMUM
MEAN
MAXIMUM
TEMPEATURE
TEMPERATURE
RESISTANCE
RESISTANCE
RESISTANCE
(0F)
(0C)
(K
Ω
)
(K
)
(K
Ω
)
Ω
–4.0
–2.2
–0.4
1.4
3.2
5.0
–20
–19
–18
–17
–16
–15
–14
–13
–12
–11
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0
±2.0
±2.0
±2.0
±2.0
±2.0
±2.0
±2.0
±2.0
±2.0
±2.0
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.6
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±1.8
±2.0
±2.0
±1.1
±1.1
±1.1
±1.1
±1.1
±1.1
±1.1
±1.1
±1.1
±1.1
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±0.9
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.0
±1.1
±1.1
30.89
29.46
28.12
26.84
25.64
24.49
23.40
22.38
21.40
20.47
19.59
18.74
17.94
17.17
16.44
15.75
15.10
14.47
13.87
13.31
12.77
12.25
11.75
11.28
10.83
10.40
9.986
9.595
9.222
8.866
8.526
8.197
7.883
7.583
7.296
7.022
6.761
6.510
6.271
6.042
5.822
5.611
5.408
5.214
5.028
4.850
4.675
4.508
4.347
4.193
4.046
3.904
3.767
3.637
3.511
3.391
3.275
3.164
32.44
30.93
29.51
28.16
26.88
25.66
24.52
23.43
22.39
21.41
20.48
19.59
18.74
17.93
17.16
16.43
15.74
15.08
14.46
13.86
13.29
12.74
12.22
11.73
11.25
10.80
10.370
9.960
9.569
9.196
8.840
8.496
8.167
7.853
7.553
7.267
6.993
6.731
6.481
6.242
6.013
5.793
5.581
5.379
5.185
5.000
4.821
4.650
4.486
4.329
4.179
4.033
3.894
3.760
3.631
3.508
3.390
3.276
34.05
32.45
30.94
29.51
28.15
26.87
25.66
24.50
23.41
22.38
21.40
20.45
19.56
18.71
17.90
17.13
16.40
15.71
15.05
14.42
13.83
13.25
12.70
12.18
11.68
11.21
10.76
10.33
9.921
9.530
9.157
8.797
8.453
8.125
7.812
7.513
7.227
6.954
6.693
6.444
6.205
5.975
5.755
5.544
5.343
5.150
4.968
4.793
4.626
4.466
4.312
4.163
4.020
3.884
3.752
3.626
3.505
3.389
6.8
8.6
10.4
12.2
14.0
15.8
17.6
19.4
21.2
23.0
24.8
26.6
28.4
30.2
32.0
33.8
35.6
37.4
39.2
41.0
42.8
44.6
46.4
48.2
50.0
51.8
53.6
55.4
57.2
59.0
60.8
62.6
64.4
66.2
68.0
69.8
71.6
73.4
75.2
77.0
78.8
80.6
82.4
84.2
86.0
87.8
89.6
91.4
93.2
95.0
96.8
98.6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
NOTE: Resistance tolerance ± 3%.
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Table 7 -DFS2A/DFS2H Thermistor TH-1, TH-2, and TH-3 Temperature to Resistance Conversion (Cont.)
TEMPERATURE
TOLERANCE
(0F)
TEMPERATURE
TOLERANCE
(0C)
MINIMUM
MEAN
MAXIMUM
TEMPEATURE
TEMPERATURE
RESISTANCE
RESISTANCE
RESISTANCE
(0F)
(0C)
(K
Ω
)
(K
)
(K
Ω)
Ω
100.4
102.2
104.0
105.8
107.6
109.4
111.2
113.0
114.8
116.6
118.4
120.2
122.0
123.8
125.6
127.4
129.2
131.0
132.8
134.6
136.4
138.2
140.0
141.8
143.6
145.4
147.2
149.0
150.8
152.6
154.4
156.2
158.0
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
±2.0
±2.0
±2.0
±2.0
±2.0
±2.2
±2.2
±2.2
±2.2
±2.2
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.3
±2.5
±2.5
±2.5
±2.5
±2.5
±2.5
±2.7
±2.7
±2.7
±2.7
±2.7
±2.9
±2.9
±2.9
±2.9
±2.9
±1.1
±1.1
±1.1
±1.1
±1.1
±1.2
±1.2
±1.2
±1.2
±1.2
±1.3
±1.3
±1.3
±1.3
±1.3
±1.3
±1.3
±1.4
±1.4
±1.4
±1.4
±1.4
±1.4
±1.5
±1.5
±1.5
±1.5
±1.5
±1.6
±1.6
±1.6
±1.6
±1.6
3.058
2.956
2.857
2.762
2.671
2.583
2.498
2.417
2.339
2.264
2.192
2.122
2.055
1.990
1.928
1.867
1.809
1.753
1.699
1.647
1.597
1.549
1.503
1.458
1.414
1.372
1.332
1.293
1.255
1.219
1.184
1.150
1.117
3.167
3.062
2.961
2.864
2.770
2.679
2.593
2.509
2.429
2.352
2.227
2.206
2.137
2.070
2.006
1.943
1.883
1.826
1.770
1.717
1.665
1.615
1.567
1.521
1.476
1.432
1.391
1.350
1.311
1.274
1.237
1.202
1.168
3.277
3.169
3.066
2.966
2.870
2.777
2.688
2.602
2.520
2.441
2.364
2.291
2.220
2.151
2.085
2.021
1.959
1.900
1.842
1.787
1.734
1.683
1.633
1.585
1.539
1.494
1.451
1.409
1.369
1.330
1.292
1.256
1.221
NOTE: Resistance tolerance ± 3%.
14
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Table 8 — General System Troubleshooting Guide
SYMPTOM
PROBABLE CAUSE
Power supply from outdoor unit to indoor
unit is not connected.
CORRECTIVE ACTION
Check for proper connection of power at disconnect.
Power supply to unit not connected
(POWER LED Off).
Unit Fails to Start.
Fuse blown (POWER LED Off).
Reset circuit breaker or replace line fuse.
ON/SEND button has not been pressed.
Indoor unit does not receive transmitted commands.
Press ON/SEND button on remote control.
Make sure that nothing is blocking the remote control transmission to the unit.
Only Indoor Fan
The selected mode is Fan Only, or Cool when
heating is desired.
Check if the remote control is in the desired mode. If not, select the
correct mode (refer to User manual). Also note that every 15 minutes
(maximum) the compressor will be switched minimally on for 3 minutes.
Works when Cooling
or Heating is Desired.
NOTE: Indoor fan runs
continuously in
Temperature is set to a value which is
too high (in Cool mode).
Observe the temperature setting on the remote control. Also note that
each 15 minutes (maximum), the compressor will be switched on
minimally for 3 minutes.
cooling mode.
Only Indoor Fan Motor
and Outdoor Fan Motor
are Working. No Cooling
Overload safety device on compressor is cut out
due to high temperature.
Compressor run capacitor is burnt.
Switch off power and try again after one hour.
Replace compressor run capacitor.
Replace compressor.
and/or Heating Takes
Place.
Compressor winding shorted.
No Air Supply at
Indoor Unit
Indoor fan motor is blocked or turns slowly.
Indoor fan motor capacitor is burnt.
1. Check voltage. Repair wiring if necessary.
2. Check indoor fan wheel if tight on motor shaft. Tighten if necessary.
Replace indoor fan motor capacitor.
(Compressor Operates).
Indoor fan motor winding is burnt.
In Heat mode: Delayed start for indoor fan motor.
Clogged air filters.
Replace indoor fan motor.
Normal software delay (maximum of 20 sec).
Clean filters.
Lack of refrigerant. Ice formation on the evaporator coil.
gas leak.
Clogged air filters.
Unit must be charged (according to the nameplate) after localizing the
Clean filters.
Low Capacity.
In Heat Mode, Only
Compressor Runs.
Outdoor and Indoor
Fan Motors are Stopped.
A/C operating in defrost cycle.
Wait 10 minutes (maximum) until the unit resumes normal operation.
Water Accumulates and
Overflows from
Drain pan pipe or hose is clogged or the spout of drain
pan is clogged.
Disassemble plastic drain pipe from spout of evaporator drain pan.
Flush with clean water.
Evaporator Drain Pan.
The unit is in the Auto, (emergency) mode.
Faulty remote control settings.
Push button once to cancel Auto, (emergency) mode.
1. If remote control symbols respond to the commands correctly, check
the unit ID Code (Standard or Alternative). Refer to “Changing Unit
ID Code" in the Owner’s Manual.
Unit Does Not Operate in
Desired Mode.
2. If Cool commands are OK, but Heat symbol is skipped on LCD, refer
to setting the remote to cooling or heat pump on the Owner’s Manual.
3. Replace remote control.
Remote control low battery.
Common Infrared Code.
Replace remote control batteries.
The Unit Receives
Interference from
Other Remote Control
or the Remote Control
Interferes with Other
Instruments.
Modify the Remote Control IR transmission code.
Refer to “Changing Unit ID Code" in the Owner’s Manual.
Copyright 2006 ICP International Comfort Products
Manufacturer reserves the right to discontinue, or change at anytime, specifications or designs without notice and without incurring obligations.
Printed in Israel
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