40WAW007-018
High Wall Mount Indoor Unit for
Single-Phase Variable Refrigerant Flow (VRF) Systems
Installation and Maintenance Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . .1,2
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2,3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Step 1 — Unpack and Inspect Units. . . . . . . . . . . . . . 3
• PROTECTING UNITS FROM DAMAGE
• PREPARING JOBSITE FOR UNIT INSTALLATION
• IDENTIFYING AND PREPARING UNITS
Step 2 — Position the Unit . . . . . . . . . . . . . . . . . . . . . . . 4
Step 3 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 4
Step 4 — Connect Piping. . . . . . . . . . . . . . . . . . . . . . . . . 5
• GENERAL
• CONDENSATE PIPING
• REFRIGERANT PIPING
Step 5 — Complete Electrical Connections. . . . . . . 5
Step 6 — Position and Connect Controller . . . . . . . 8
• WIRELESS REMOTE CONTROLLER
• WIRED REMOTE CONTROLLER
(PROGRAMMABLE)
• WIRED REMOTE CONTROLLER
(NON-PROGRAMMABLE)
• CENTRAL CONTROLLER
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pre-Start Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
System Operation Check . . . . . . . . . . . . . . . . . . . . . . . . 9
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . .9,10
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
APPENDIX A — CONTROL SETTINGS . . . . . . . . . . . 11
which will result in severe personal injury or death.
WARNING signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices,
which would result in minor personal injury or product and
property damage.
Recognize safety information. This is the safety-alert
symbol ( ). When this symbol is displayed on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
WARNING
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work
is completed.
WARNING
When installing the equipment in a small space, provide
adequate measures to avoid refrigerant concentration
exceeding safety limits due to refrigerant leak. In case of
refrigerant leak during installation, ventilate the space
immediately. Failure to follow this procedure may lead to
personal injury.
WARNING
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or
other conditions which may cause death, personal injury or
property damage. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this
product.
Follow all safety codes. Wear safety glasses, protective
clothing, and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included
in literature and attached to the unit. Consult local building
codes and the current editions of the National Electrical Code
(NEC) ANSI/NFPA (American National Standards Institute/
National Fire Protection Association) 70. In Canada, refer to
the current editions of the Canadian Electrical Code CSA (Canadian Standards Association) C22.1.
Understand the signal words — DANGER, WARNING,
and CAUTION. DANGER identifies the most serious hazards
Manufacturer reserves the right to discontinue, or change at any time, specificatio ns or designs without not ice and without incurring obligations.
Catalog No. 04-53400030-01 Printed in U.S.A. Form 40WAW-2SI Pg 1 4-16 Replaces: 40WAW-1SI
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and goggles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from sys-
tem using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated. Refrigerant in contact with an open flame produces toxic
gases.
d. Cut component connection tubing with tubing cutter
and remove component from unit. Use a pan to catch
any oil that may come out of the lines and as a gage
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when nec-
essary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal
injury or death.
GENERAL
CAUTION
DO NOT re-use compressor oil or any oil that has been
exposed to the atmosphere. Dispose of oil per local codes
and regulations. DO NOT leave refrigerant system open to
air any longer than the actual time required to service the
equipment. Seal circuits being serviced and charge with
dry nitrogen to prevent oil contamination when timely
repairs cannot be completed. Failure to follow these procedures may result in damage to equipment. For information
about replacement oil type and viscosity, see the SinglePhase VRF Outdoor Unit installation instructions.
Table 1 — 40WAW Physical Data
UNIT 40WAW 007 009 012 015 018
POWER SUPPLY (V-Ph-Hz) 208/230-1-60
COOLING CAPACITY (Btuh) 7,500 9,500 12,000 15,000 19,000
HEATING CAPACITY (Btuh) 8,500 10,900 13,600 17,000 21,000
INDOOR FAN MOTOR
Type AC Motor
Input (W) 35 55
INDOOR COIL
Number of Rows 2
Fin Spacing (fins/in.) 16
Fin Type Aluminum with Hydrophilic Coating
Tube Diameter, OD (in.)
Tube Type Copper Tube with Inner Groove
Number of Circuits 36
INDOOR AIRFLOW (cfm)
Low 253 282.5 370.8
Medium 282.5 306 444
High 309 347 506
INDOOR NOISE LEVEL (dBA)
Low 29 34
Medium 32 38
High 35 40
UNIT DIMENSIONS (in.)
Width 36 42
Height 11 1/
Depth 99
PACKING DIMENSIONS (in.)
Width 40
Height 15 3/
Depth 12 1/
NET/GROSS WEIGHT (lb) 30/37 35/44
REFRIGERANT TYPE R-410A
EXPANSION DEVICE EXV (Integrated with the Evaporator)
DESIGN PRESSURE, H/L (psig) 650/250
REFRIGERANT PIPING (in.)
Liquid Side, OD
Suction Side, OD
CONNECTING WIRING
Power Wiring Sized per NEC and Local Codes Based on Nameplate Electrical Data 3 x 14 AWG
Signal Wiring 3-Core Shielded Wire x 20 AWG
DRAINAGE WATER PIPE DIAMETER, OD (in.)
LEGEND
EXV — Electronic Expansion Valve
NEC — National Electrical Code
The 40WAW high wall mount unit provides an efficient
way to heat or cool a space and an attractive appearance. The
equipment is initially protected under the manufacturer’s standard warranty; however, the warranty is provided under the
condition that the steps outlined in this manual for initial inspection, proper installation, regular periodic maintenance, and
everyday operation of the unit be followed in detail. This manual should be fully reviewed in advance before initial installation, start-up and any maintenance. Contact your local sales
representative or the factory with any questions BEFORE proceeding.
Table 1 lists physical data for each unit size. See Fig. 1 for
the model number nomenclature. Figure 2 shows the unit dimensions.
9
/
32
444
506
544
1
/
4
2
1
/
4
8
2
1
/
4
1
/
2
3
/
4
12 1/
46 1/
16 3/
12 1/
2
2
8
2
3
/
8
5
/
8
2
Fig. 1 — Model Number Nomenclature
LEGEND
VRF — Variable Refrigerant Flow
Equipment Type
C
D
A
B
a40-1733
Fig. 2 — 40WAW007-018 Dimensions
NOTE: All dimensions shown in inches.
40WAW UNIT SIZE
DIMENSION
ABCD
007-012 36 11
1
/
2
9 28 1/
4
015,018 42 1/
4
12 1/
2
9 35 1/
8
40 —
Indoor Unit
Product Type
WA — Single-Phase VRF
Model Type
W — High Wall Mount
40 WA W
A40-1918
007
---
3
Voltage (V-Ph-Hz)
3 — 208/230-1-60
Blank
Capacity (Btuh)
— 7,500
007
— 9,500
009
— 12,000
012
— 15,000
015
— 19,000
018
INSTALLATION
Step 1 — Unpack and Inspect Units —
packaged for shipment to avoid damage during normal transit
and handling. It is the receiving party’s responsibility to inspect
the equipment upon arrival. Any obvious damage to the carton
and/or its contents should be reported on the bill of lading and a
claim should be filed with the transportation company and the
factory. Unit should always be stored in a dry place, and in the
proper orientation as marked on the carton.
Units are
fully remove each unit from the carton and inspect for hidden
damage. Check to make sure that items such as thermostats,
controller etc. are accounted for whether packaged separately
or shipped at a later date. Any hidden damage should be recorded, a claim should be filed with the transportation company, and the factory should be notified. In the event a claim for
3
CAUTION
To avoid equipment damage, do not lift unit by the drain
pipe or refrigerant piping. Unit should be lifted using the
mounting brackets.
After determining the condition of the carton exterior, care-
shipping damage is filed, the unit, shipping carton, and all
6 in. MIN.
5 in.
MIN.
5 in.
MIN.
A40-1705
Fig. 3 — Required Clearances
Fig. 4 — Mounting Plate
NOTE: All dimensions in inches.
18-1/4
2-1/4
28
MOUNTING
PLATE
UNIT SIZES 007-012
31-3/8
28-3/4
2-5/8
UNIT SIZES 015-018
MOUNTING
PLATE
packing must be retained for physical inspection by the transportation company. All units should be stored in the factory
shipping carton with internal packaging in place until installation.
PROTECTING UNITS FROM DAMAGE — Do not apply
force or pressure to the coil, piping, or drain stub-outs during
handling. All units should be handled by the chassis or as close
as possible to the unit mounting point locations.
The unit must always be properly supported. Temporary
supports used during installation or service must be adequate to
hold the unit securely. To maintain warranty, protect units
against hostile environments (such as rain, snow or extreme
temperature), theft, vandalism, and debris on jobsite. Equipment covered in this manual is not suitable for outdoor installations. Do not allow foreign material to fall into drain pan. Prevent dust and debris from being deposited on motor, fan wheels
and coils. Failure to do so may have serious adverse effects on
unit operation and in the case of motor and blower assembly,
may result in immediate or premature failure. Failure of any
unit caused by deposits of foreign material on the motor or
blower wheels will not be covered by the manufacturer’s warranty. Some units and/or job conditions may require some form
of temporary covering during construction.
PREPARING JOBSITE FOR UNIT INSTALLATION —
To save time and to reduce the possibility of costly errors, set
up a complete sample installation in a typical room at jobsite.
Check all critical dimensions such as pipe, wire, and duct con-
nections requirements. Refer to job drawings and product
dimension drawings as required. Instruct all trades in their
parts of the installation. Units must be installed in compliance
with all applicable local code requirements.
IDENTIFYING AND PREPARING UNITS — Be sure
power requirements match available power source. Refer to
unit nameplate and wiring diagram. In addition:
• Check all tags on unit to determine if shipping screws are
to be removed. Remove screws as directed.
• Rotate the fan wheel by hand to ensure that the fan is
unrestricted and can rotate freely. Check for shipping
damage and fan obstructions. Adjust blower motor as
required.
Step 2 — Position the Unit
• The unit should not be positioned directly above any
obstruction.
• The unit must be installed square and level.
• The condensate drain should have sufficient downward
slope in the condensate flow direction.
Step 3 — Mount the Unit
CAUTION
When determining the unit mounting location, make sure
that there are no water, plumbing, or electrical lines running through the wall. Failure to follow this instruction
may result in property damage.
1. Detach the mounting plate from the unit.
2. Place the mounting plate on the wall where the unit will
be installed and mark the mounting holes. See Fig. 4.
Be sure the mounting hole marks are positioned over the
wall studs.
Units must not be installed where they may be exposed to
potentially explosive or flammable atmosphere. If this
instruction is not followed exactly, a fire or explosion may
result, causing property damage, injury, or loss of life.
Select the unit position with the following points in mind:
• The unit should be installed on wall studs that are strong
enough to support the total weight of the unit, refrigerant
piping, and condensate.
• The unit should be mounted 8 ft or more from the floor
and if possible, centrally located on the wall from both
ends.
• Proper clearance should be provided on the side and top
as shown in Fig. 3.
DANGER
3. Mark the condensate and refrigerant piping route. If necessary, cut hole in wall to route the piping.
4. Secure the mounting plate with screws that can support
the weight of the unit. For nominal weight of the unit, see
Table 1.
4
5. Make sure the mounting plate is leveled and flush with
CUSHIONING
MATERIAL
HOOK
A40-1707
Fig. 5 — Piping Connection
Fig. 6 — Condensate Piping, Poor Installation
RIGHT PIPING
RIGHT BACK PIPING
LEFT BACK PIPING
LEFT PIPING
A40-1709
Fig. 7 — Condensate Pipe Routes
the wall.
6. Secure the unit in position by lifting the unit over the
mounting plate. Make sure the hook on the mounting
plate aligns with the slot on the back of the unit. To ensure
proper fit, slide the unit sideways. If the unit is locked in
the correct position, it should not move.
Step 4 — Connect Piping
GENERAL
1. For condensate and refrigerant piping, lift the unit from
bottom, making sure the unit is still attached to the
mounting plate at the top. See Fig. 5.
2. Introduce temporary cushioning material to maintain the
space needed to connect the piping and to avoid damage
to unit and wall. See Fig. 5.
3. When the piping connections are completed, remove the
cushioning material and make sure the unit is flush with
the wall.
COND ENS ATE PIPI NG — The unit is supplied with a
3
/4-in. OD drain connection to connect copper or PVC drain
piping. When installing condensate piping, follow these recommendations:
• Condensate drain should slope downward in the direc-
tion of condensate flow.
• DO NOT install any U bends or dump the condensate
line in a sump filled with water. See Fig. 6.
a40-1708
• When multiple units are connected to a common conden-
sate drain, ensure that the drain is large enough to accommodate the volume of condensate from all units. It is also
recommended to have an air vent in the condensate piping to prevent any air locks.
• Condensate piping must not be installed where it may be
exposed to freezing temperatures.
• Condensate piping can be routed in one of the four direc-
tions shown in Fig. 7.
REFRIGERANT PIPING
CAUTION
When connecting from an indoor unit to an outdoor unit,
the isolation valve at the outdoor unit should be in closed
position throughout the refrigerant piping process. Failure
to follow this procedure may result in equipment damage.
When connecting from an indoor unit to an outdoor unit,
follow these procedures:
• Check maximum height drop and length of refrigerant
piping between the indoor and outdoor unit. If the difference between them is more than 33 ft, consider mounting
the outdoor unit above indoor unit.
• Refrigerant piping connection between indoor and outdoor units should be performed once the units are
secured at their respective installation locations.
• The refrigeration piping starts at the indoor unit and ends
at the outdoor unit.
• The number of bends in the refrigeration piping must be
fewer than 15.
• The refrigerant piping should be dry and free of dust and
other impurities.
• The bending angle of the refrigerant pipe should not
exceed 90 degrees and the bending radius should be as
large as possible to prevent any breakage in piping.
• Use proper cutting and flaring tools to avoid leakage.
• Before insulating the suction and liquid refrigeration
pipes, perform pressure and leak tests. For details, see
the outdoor unit installation manual. Insulating both suction and liquid refrigerant pipes is recommended.
• Vacuuming and charging of the system should be carried
out as described in the outdoor unit installation manual.
Step 5 — Complete Electrical Connections —
Installation of wiring must conform with local building codes
and with National Electric Code ANSI/NFPA 70, latest editions. Units must be electrically grounded in conformance with
the code. In Canada, wiring must comply with CSA C22.1,
Electrical Code.
WARNING
Electrical shock can cause personal injury and death. Disconnect power supply before making wiring connections.
There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until
work is completed.
5
WARNING
All units must be wired strictly in accordance with the wiring diagram furnished with the unit. Any wiring different
from the wiring diagram could result in personal injury and
property damage.
CAUTION
Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature rating of at least 105 C.
Ensure supply voltage to the unit, as indicated on the serial
plate, is not more than 10% over the rated voltage or 10%
under the rated voltage.
Failure to follow these recommendations may result in
equipment damage.
This equipment in its standard form is designed for an electrical supply of 208/230-1-60. Any damage to or failure of
units caused by incorrect wiring or voltage is not covered by
warranty.
Electric wiring must be sized to carry the full load amp
draw of the motor, starter, and any other controls that are used
with the unit. See Table 2 for electrical data.
Table 2 — 40WAW Electrical Data
UNIT
40WAW007 0.2 15
40WAW009 0.2 15
40WAW012 0.2 15
40WAW015 0.3 15
40WAW018 0.3 15
LEGEND
MCA — Minimum Circuit Amps
MOPD — Maximum Overcurrent
Protective Device
POWER SUPPLY
MCA MOPD
After the pipe work is complete, the electrical supply can be
connected by routing the cable through the appropriate casing
holes or knockouts and connecting the supply and ground
cables to the unit’s power terminal.
Be sure the power wiring and control wiring do not cross, as
this might cause disturbance on the controls side. See Fig. 8 for
wiring diagram.
6
GROUND
Fig. 8 — 40WAW007-018 Typical Wiring Diagram
LEGEND
ANION — Anion Generator
C—Fan Capacitor
CS — Water Level Switch
DM — Pump Motor
EEV — Electronic Expansion Valve
FM — Indoor Fan
GM — Swing Motor
HEAT — Auxiliary Heater
T1 — Inlet Air Temperature
T2 — Coil Temperature
T2B — Evap. Outlet Temperature in Cooling Mode
TR — Transformer
XP1-7 — Plug
XS1-7 — Jack
XT1-2 — Terminal Block
---------- Optional Component or Field Wiring
GROUND
REMOTE ON/OFF
GROUND
a40-1710
7
Step 6 — Position and Connect Controller —
REMOTE
CONTROLLER
MOUNTING
SCREWS
REMOTE CONTROLLER
HOLDER
A40-1712
Fig. 9 — Wireless Remote Controller
Fig. 10 — Wired Remote Controller
(Programmable) Wiring
SHIELDED
4-CORE
CABLE
BACK OF
CONTROLLER
INDOOR UNIT
ELECTRICAL BOX
CONTROL
BOARD
a40-1779
INDOOR UNIT
DISPLAY PANEL
5-CORE CABLE
5-CORE SHIELDED CABLE
INDOOR UNIT
ELECTRIC CONTROL BOX
INDOOR UNIT
ELECTRIC CONTROL
PANEL
WIRED CONTROLLER
BACK
A40-1714
5-CORE CABLE
Fig. 11 — Wired Remote Controller
(Non-Programmable) Wiring
Fig. 12 — Central Controller Wiring
Controllers are ordered separately.
Wired controllers should be installed in a position that
maintains good temperature control:
• Position the thermostat approximately 48 in. above floor
level.
• Do not position thermostat where it can be directly
affected by the unit’s discharge airstream.
• Avoid external walls and drafts from window and doors.
• Avoid positioning near shelves and curtains as these
restrict air movement.
• Avoid heat sources such as direct sunlight, heaters, dimmer switches, and other electrical devices.
WIRELESS REMOTE CONTROLLER — Before installation, operate the remote controller to determine the appropriate
location for reception range. Avoid direct sunlight exposure or
heating sources. Use proper mounting screws and controller
bracket to mount the controller on the wall (see Fig. 9). For setup instructions, refer to the controller installation manual.
WIRED REMOTE CONTROLLER (NON-PROGRAMMABL E) — To connect wired remote controller (thermostat)
to the indoor unit, use 5-core shielded cable and 5-pin connector from unit display panel (see Fig. 11). For setup instructions,
refer to the controller installation manual.
CENTRAL CONTROLLER — The central controller is
connected to the indoor unit through outdoor unit with 3-core
shielded cable (see Fig. 12). For setup instructions, refer to the
controller installation manual.
WIRED REMOTE CONTROLLER (PROGRAMMABLE) — To connect a wired remote controller (thermostat) to
the indoor unit, use 4-core shielded cable and 4-pin connector
from electrical box of indoor unit (see Fig. 10). For setup instructions, refer to the controller installation manual.
TO INDOOR UNIT
X,Y,E
DAISY CHAIN
X
NOT USED
F1F2E
FORCED ON EMG. STOP
FORCED
ON
SWITCH
R
C
24 VAC
EMERGENCY
STOP
SWITCH
a40-1774
Y
E
8
START-UP
OPERATION
TIMER
40WAW007-018
A40-1919
Pre-Start Check —
the following pre-start checks:
1. All indoor and outdoor units are properly installed.
2. All piping and insulation is complete.
3. All electrical connections (both power and control) are
properly terminated.
4. All condensate drains are installed correctly.
5. The power supply is of the right voltage and frequency.
6. The units are properly grounded in accordance with current electrical codes.
7. Suction and liquid line service valves are in the open
position.
Once installation is complete, make
System Operation Check — Once the installation
and pre-start checks are completed, follow these steps:
1. Using remote controller, select cooling or heating mode
to check the operation of the system.
2. While the system is in operation, check the following on
indoor unit:
a. Switches or buttons on remote controller are easy to
push.
b. Indicator light is showing normal operation and no er-
ror is indicated.
c. Swing mode of air louvers is working (if applicable to
unit).
d. Drain pump operation is normal (if applicable).
e. No abnormal vibration or noise is noticed.
3. While the system is in operation, check the following on
outdoor unit:
a. No abnormal vibration or noise is noticed.
b. Condenser fan is in operation.
c. Indicator light is showing normal operation and no er-
ror is indicated.
NOTE: If unit is turned off or restarted, there is a 3 minute time
delay for the compressor to start from the time power is
restored.
MAINTENANCE
CAUTION
When servicing or repairing this unit, use only factoryapproved service replacement parts. Refer to the rating
plate on the unit for complete unit model number, serial
number and company address. Any substitution of parts or
controls not approved by the factory will be at the owner’s
risk and may result in equipment damage.
CAUTION
To avoid equipment damage, do not attempt to reuse any
mechanical or electrical controllers that have been wet.
Replace defective controller.
EVERY 3 MONTHS:
• Check air filter condition. Clean or replace if necessary.
EVERY 6 MONTHS — Follow 3-month maintenance sched-
ule. In addition:
• Clean condensate tray with suitable cleaning agent.
• Clean the grille and panel.
EVERY 12 MONTHS — Follow 6-month maintenance
schedule. In addition:
• Be sure all electrical connections are secure.
• Check condensate pump operation.
• Check heating and cooling action for proper operation.
TROUBLESHOOTING
Figure 13 shows an LED display panel for the 40WAW007018 units. See Table 3 for a summary of display indicators. Table 4 lists problems, possible causes, and possible solutions.
Fig. 13 — 40WAW LED Display Panel
9
Table 3 — LED Display Indicators
Fig. 13 — Unit Serial Plate (Example)
ERROR CODE LED DISPLAY MODE/STATUS
Operation Light ON Starting
Operation Light OFF Shutdown
[NO ERROR]
Operation Light Flashing Slow* Standby
Timer Light ON Timing ON
Timer Light OFF Timing OFF
E1 Timer Light Flashing Fast† Communication Error Between Indoor and Outdoor Unit
E2
E3 Check Evaporator Temperature Sensor (T2)
Operation Light Flashing Fast
Check Indoor Ambient Temperature Sensor (T1)
E4 Check Evaporator Outlet Temperature Sensor (T2B)
FE Operation and Timer Lights Flashing Fast Indoor Unit Turned ON but does not have an Address
F0 Wired Remote Controller Only (40WA900023)
*Flashing Slow = Flashing once per second.
†Flashing Fast = Flashing twice per second.
Communication Error between Indoor Unit and Wired
Remote Controller
Table 4 — Troubleshooting
ERROR DISPLAY POSSIBLE CAUSES POSSIBLE SOLUTIONS
Timer Light Flashing Fast
E1
(Communication Error)
E2, E3, E4Operation Light Flashing Fast
(Sensor Error)
Operation and Timer Lights Flashing
FE
Fast Together
(Address Error)
F0 Wired Remote Controller Screen
Signal wires are short-circuited or
disconnected.
Signal wire order is incorrect. Correct signal wire order.
Signal wires crossing over high voltage
power wires.
Signal wire close to electromagnetic source.
Signal wire length exceeds 360 ft. Reduce the signal wire length.
PC board fault. Replace PC board.
Loose connection at port on PC board. Tighten the connection at port on PC board.
Sensor is short-circuited.
PC board fault. Replace PC board.
Indoor unit without address.
Incorrect signal wiring between indoor unit
and wired remote controller.
Check or reconnect signal wire.
Separate and distance the signal wire from high
voltage power wires.
Distance signal wires from electromagnetic
source.
Using multi-meter, measure resistance of the sensor. If the resistance is 100 ohms, change the
sensor.
Run automatic addressing option at the outdoor
unit.
Use remote wireless or wired controller to readdress indoor unit.
Correct signal wiring between indoor unit and
wired remote controller as per wiring diagram provided in installation manual.
Replacement Parts — Quote the unit model number
and unit serial number when ordering replacement parts or
contacting the factory about the unit. This information can be
found on the serial plate attached to the unit. See Fig. 14.
10
WALL MOUNTED UNIT
40WAW009---3
2115V40002
160208/230 0.14 151/50
7310 West Morris Street
Indianapolis, IN 46231 USA
a40-1717
APPENDIX A — CONTROL SETTINGS
POSITION 1 — START-UP
OFF — Auto Addressing Mode (Default)
ON — Factory Test Mode
POSITION 2 — FAN
OFF — AC Fan (Default)
ON — Do not set switch to ON
POSITION 3, 4 — Not Used
Fig. A — SW1 Settings
ON
OFF
123 4
A40-1929
ON
OFF
123 4
A40-1930
Fig. B — SW2 Settings
POSITION 1, 2 — COIL TEMPERATURE, HEATING MODE
OFF, OFF — Coil Temperature < 59 F, No Heat (Default)
OFF, ON — Coil Temperature < 68 F, No Heat
ON, OFF — Coil Temperature < 75.2 F, No Heat
ON, ON — Coil Temperature < 78.8 F, No Heat
ON
OFF
123 4
a40-1924
POSITION 3, 4 — MODE, FAN STATUS, SP REACHED
SP — Set Point
OFF, OFF — Cooling Mode/Fan On/SP Reached,
Heating Mode/Fan On/SP Reached (Default)
OFF, ON — Cooling Mode/Fan On/SP Reached,
Heating Mode/Fan Off/SP Reached
ON, OFF — Cooling Mode/Fan Off/SP Reached,
Heating Mode/Fan On/SP Reached
ON, ON — Cooling Mode/Fan Off/SP Reached,
Heating Mode/Fan Off/SP Reached
Fig. C — SW5 Settings
ON
OFF
12
a40-1925
POSITION 1, 2 — HEATING TEMPERATURE OFFSET
OFF, OFF — Temperature Offset is 1.8 F (Default)
OFF, ON — Temperature Offset is 3.6 F
ON, OFF — Temperature Offset is 7.2.F
ON, ON — Temperature Offset is 10.8 F
Fig. D — SW6 Settings
POSITION 1 — CONTROLS
OFF — Display Board (Default)
ON — Control Interface Module
ON
OFF
123
a40-1927
POSITION 2, 3 — Not Used
There are 4 DIP switches on the main board. Figures A-D
show the settings for each parameter controlled by a switch.
Switches are shown in the default settings.
v
ON
OFF
123 4
a40-1924
ON
OFF
a40-1926
123
ON
OFF
123 4
a40-1923
Terminals J1 and J2 are located on the main control board.
The default setting for J1 is no jumper, Auto Restart. When J1
jumper is in place, the setting is Manual Restart. Terminal J2 is
not used.
The manual button is located on the display board. The default display is Fahrenheit. To change from Fahrenheit to Celsius, press the button and hold for 5 seconds.
11
© Carrier Corporation 2016
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53400030-01 Printed in U.S.A. Form 40WAW-2SI Pg 12 4-16 Replaces: 40WAW-1SI
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