Carrier 40WAW009, 40WAW012, 40WAW015, 40WAW018, 40WAW024 Installation And Maintenance Instructions Manual

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40WAW007-024

High Wall Mount Indoor Unit for

Mini Variable Refrigerant Flow (VRF) Systems

Installation and Maintenance Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS ..................... 1,2

GENERAL ...................................... 2-4

INSTALLATION ................................. 4-9

Step 1 -- Unpack and Inspect Units .............. 4

• PROTECTING UNITS FROM DAMAGE

• PREPARING JOBSITE FOR UNIT INSTALLATION

• IDENTIFYING AND PREPARING UNITS

Step 2 -- Position the Unit ....................... 4

Step 3 -- Mount the Unit ......................... 5

Step 4- Connect Piping ......................... 5

• GENERAL

• CONDENSATE PIPING

• REFRIGERANT PIPING

Step 5 -- Complete Electrical Connections ....... 6

Step 6 -- Position and Connect Controller ....... 9

• WIRELESS REMOTE CONTROLLER

• WIRED REMOTE CONTROLLER

(PROGRAMMABLE)

• WIRED REMOTE CONTROLLER

(NON-PROGRAMMABLE)

• CENTRAL CONTROLLER

START-UP ....................................... 10

Pre-Start Check ................................. 10

System Operation Check ....................... 10

MAINTENANCE ................................. 10

TROUBLESHOOTING ......................... 10-12

Replacement Parts ............................. 12

WARN1NG signifies hazards that could result in personal inju- ry 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 (z_)- When this symbol is displayed on the unit and in instructions or manuals, be alert to the potential for personal injury.

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 discon- nect locations to alert others not to restore power until work is completed.

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 ilmnediately. Failure to follow this procedure may lead to

personal injury.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, main- tenance, 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 op- erations. Have fire extinguisher available. Read these instruc- tions 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 (Ca- nadian Standards Association) C22.1.

Understand the signal words -- DANGER. WARN1NG, and CAUTION. DANGER identifies the most serious hazards

which will result in severe personal injury or death.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53400008-01 Printed in U.S.A. Form 40WAW-1SI Pg 1 6-15 Replaces: New

DO NOT USE TORCH to remove any component. System contains oil and refrigerant under pressure.

To remove a component, wear protective gloves and gog- gles 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. Refrig- erant 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.

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 proce- dures may result in damage to equipment. For information about replacement oil type and viscosity, see the Mini VRF

Outdoor Unit installation instructions.

Table I -- 40WAW Physical Data

UNIT 40WAW POWER SUPPLY (V-Ph-Hz) COOLING CAPACITY (Btuh)

HEATING CAPACITY (Btuh) INDOOR FAN MOTOR

Type Input (W)

INDOOR COIL

Number of Rows

Fin Spacing (fins/in.) Fin Type

Tube Diameter, OD (in.) Tube Type

Number of Circuits

INDOOR AIRFLOW (cfm)

Low

Medium High

INDOOR NOISE LEVEL (dBA)

Low

Medium High

UNIT DIMENSIONS (in.)

Width Height

Depth

PACKING DIMENSIONS (in.)

Width Height

Depth

NET/GROSS WEIGHT (Ib) REFRIGERANT TYPE

EXPANSION DEVICE DESIGN PRESSURE, H/L (psig) REFRIGERANT PIPING (in.)

Liquid Side, OD

Suction Side, OD

CONNECTING WIRING

Power Wiring

Signal Wiring

DRAINAGE WATER PIPE DIAMETER, OD (in.)

LEGEND

EXV -- Electronic Expansion Valve NEC -- National Electrical Code

GENERAL

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 stan- dard warranty; however, the warranty is provided under the condition that the steps outlined in this manual for initial in- spection, proper installation, regular periodic maintenance, and everyday operation of the unit be followed in detail. This man- ual should be fully reviewed in advance before initial installa- tion, start-up and any maintenance. Contact your local sales representative or the factory with any questions BEFORE pro- ceeding.

Table 1lists physical data for each unit size. See Fig. 1 for model number nomenclature. Figures 2and 3 show unit dimen-

sions.

007 I 009 I o12 I o15 I o18 I 024

208/230-1-60

7,500 J. 9,500 12,000 15,000 19,000 24,000 8,500 | 10,900 13,600 17,000 21,000 27,000

AC Motor

35 I 55 I 100

16 ] 19

Aluminum with Hydrophilic Coating

9/32

Copper Tube with Inner Groove

3 ] 6

253 282.5 370.8 444 400

282.5 306 444 506 518 309 347 506 544 700

29 34 41

32 38 42 35 40 45

36 42 1/4 49 1/4

11 1/2 121/2 123/4

9 9 9 5/8

40 1/4 46 1/2 53

15 3/8 16 3/8 17 12 1/2 12 1/2 13 1/4

30/37 35/44 44/55

R-410A

EXV (Integrated with the Evaporator)

650/250

1/4 3/8

1/2 %

Sized per NEC and Local Codes Based on Nameplate Electrical Data

3-Core Shielded Wire

3/4

Equipment Type

40 -- indoor Unit

Product Type

WA-- Mini VRF

Model Type W -- High Wail Mount

LEGEND

VRF -- Variable Refrigerant Flow

Fig. 1 -- Model Number Nomenclature

WA W

i Voltage (V-Ph-Hz)

3 -- 208/230-1-60

Blank

Capacity (Btuh)

007-- 7,500 009-- 9,500 012 -- 12,000

015 -- 15,000 018 -- 19,000

024 -- 24,000

40WAW UNIT SIZE

007-012 015,018

42 1/4

NOTE: All dimensions shown in inches,

D A

DIMENSION

B C

11 1/2 9 12 1/2 9

28 1/4 35 1/8

Fig. 2- 40WAWO07-018 Dimensions

,-,

3-1/2

9-5/8

NOTE: All dimensions shown in inches.

r------q

44-1/2 49-1/4

Fig. 3 -- 40WAW024 Dimensions

• " d

I-I

INSTALLATION

Step 1 -- Unpack and Inspect Units -- Units are

packaged for shipment to avoid damage during nonnal 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.

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- 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 re- corded, a claim should be filed with the transportation compa- ny, and the factory should be notified. In the event a claim for shipping damage is filed, the unit, shipping carton, and all packing must be retained for physical inspection by the trans- portation company. All units should be stored in the factory shipping carton with internal packaging in place until installa-

tion. 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 enviromnents (such as rain, snow or extreme temperature), theft, vandalism, and debris on jobsite. Equip-

ment covered in this manual is not suitable for outdoor installa- tions. Do not allow foreign material to fall into drain pan. Pre-

vent 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 ilrunediate 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 war- ranty. 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 dfinensions 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

Units must not be installed where they may be exposed to

potentially explosive or flmmnable 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. 4.

t 6 in. MIN.

5in (

5 in.

MIN.

Fig. 4 -- Required Clearances

• 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 E Mount the Unit

When determining the unit mounting location, make sure that there are no water, plumbing, or electrical lines run- ning 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. 5.

Be sure the mounting hole marks are positioned over the wall studs.

3. Mark the condensate and refrigerant piping route. If nec- essary, 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.

Make sure the mounting plate is leveled and flush with the wall.

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 E 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. 6.

2. Introduce temporary cushioning material to maintain the space needed to connect the piping and to avoid damage to unit and wall. See Fig. 6.

CUSHIONING

HOOK

MATERIAL

Fig. 6 -- Piping Connection

UNIT SIZES 007-012 PLATE

28-3/4 _,

311-3/8 MOUNTING

UNIT SIZES 015-018

28-1/4

_ 3_ TING

UNIT SIZE 024

NOTE: All dimensions in inches,

Fig. 5 -- Mounting Plate

I [

3. When the piping connections are completed, remove the cushioning material and make sure the unit is flush with

the wall.

CONDENSATE PIPING- 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 recom-

MOUNTING

mendations:

• 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. 7.

PLATE

Fig. 7 -- Condensate Piping, Poor Installation

• When multiple units are connected to a colmnon conden- sate drain, ensure that the drain is large enough to accom-

PLATE

modate the volume of condensate from all units. It is also recolmnended to have an air vent in the condensate pip-

ing 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. 8.

LEFT BACK PIPING

LEFT PIPING

RIGHT BACK PIPING RIGHT PIPING

Fig. 8 -- Condensate Pipe Routes

REFRIGERANT PIPING

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 differ- ence between them is more than 33 ft, consider mounting

the outdoor unit above indoor unit.

• Refrigerant piping connection between indoor and out- door 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 suc- tion and liquid refrigerant pipes is recmmnended.

• 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 edi-

tions. Units must be electrically grounded in conformance with the code. In Canada, wiring must comply with CSA C22.1, Electrical Code.

All units must be wired strictly in accordance with the wir- ing diagram furnished with the unit. Any wiring different from the wiring diagram could result in personal injury and

property damage.

Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rat- ing 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 recolnmendations may result in

equipment damage.

This equipment in its standard form is designed for an elec- trical 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 40WAW009 40WAW012 40WAW015 40WAW018 40WAW024

LEGEND

MCA -- Minimum Circuit Amps MOPD -- Maximum Overcurrent

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. 9

and 10 for wiring diagrams.

Protective Device

POWER SUPPLY

MCA MOPD

02 15 02 15

02 15 0,3 15 0,3 15 0,6 15

C JS

Electrical shock can cause personal injury and death. Dis- connect power supply before making wiring connections. There may be more than one disconnect switch. Tag all dis- connect locations to alert others not to restore power until work is completed.

II _ GROUND

" I--] I D| / I x T_ ,w,....

ANION C CS DM EEV FM GM HEAT T1 T2 T2B TR XP1-7 XS1-7 XT1-2

ON7

....... ]

0N24 aa

I_EAIN _IEAILa

RED CNI

(WHI TE}

(WHITE) i

MAIN CONTROL

I I

........ J

INDOOR POWER

LEGEND

-- Anion Generator

-- Fan Capacitor

-- Water Level Switch

-- Pump Motor

-- Electronic Expansion Valve

-- Indoor Fan

-- Swing Motor

-- Auxiliary Heater

-- Inlet Air Temperature

-- Coil Temperature

-- Evap. Outlet Temperature in Cooling Mode

-- Transformer

-- Plug

-- Jack

-- Terminal Block Optional Component or Field Wiring

CNIO (WHITE)

,j_o4[

BOARD IJ_°_l[

0N17 I

(wHI[E)

ON16 F

oN oN oN (R_L

SWl SW2 J1J2 SW5

(WHITE} 0N8

CN19

[}......................t__,_ozo_,_,L:

XS1 XP1 IWEEKL Y TIMER II

?Z_L°_°.°w__w_°k___w_,,

CONNECT TO " CONNECT TO

W!RE.ECONTROLLE.R: OUTO00_UNIT

Fig. 9- 40WAWO07-018 Typical Wiring Diagram

REMOTE ON/OFF i

V_ ....................................

]x_ (_

0. _

POWER_S

SW6 END1 2

ON10 (WHITE)

xP P7

xs_ Xxs7yxs6 3

IT2" T21T1=

_1_"_1I_"_I- I _--_,R_-,

ON'OFF I [ =CONT=R=OL LE,=RI

(YELL0W) _=

(WHI T E)[_--]

"-'_'_ XS XP1r ..............

"WEEKLYTIMER ',

2_.?.c°".L%_.%

AL C CS DM EEV -- FM GM HEAT -- T1 T2 T2B -- TR

XP1-7 --

XS1-7 -- XT1-2 --

,.... -,MAIN

m m

'FD-I'

0N24 1

;(w"=,2_)J

L_ (RED)

TR RED ==--==-1(BLUE)

-- -- = __.l

............... i

(YELLn' " HEAT N HEAT L I

: ?? :

m ¥/_

I k :0( -)J _

INDOOR POWER

LEGEND

Alarm

Fan Capacitor

Water Level Switch

Pump Motor Electronic Expansion Valve

Indoor Fan

Swing Motor Auxiliary Heater

Inlet Air Temperature

Coil Temperature

Evap. Outlet Temperature in Cooling Mode

Transformer

Plug

Jack Terminal Block

Optional Component or Field Wiring

CONTROL BOARD

) SWl SW2 SW5 dld2

(R ED)_o_'=1

(BLUE)

(WHITE) E

WIRED CONTROLLER',OUTDOOR UN IT

II_ CONNECT TO

XT2

' CONNECT TO

Fig. 10- 40WAW024 Typical Wiring Diagram

Step 6 -- Position and Connect Controller

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, dim- mer switches, and other electrical devices.

WIRELESS REMOTE CONTROLLER -- Before installa- tion, 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. 11). For setup instructions, refer to the controller installation manual.

MOUNTING

ca [Z] cs

SCREWS__ __

WIRED REMOTE CONTROLLER (NON-PROGRAM- MABLE) -- To connect wired remote controller (thermostat)

to the indoor unit, use 5-core shielded cable and 5-pin connec- tor from unit display panel (see Fig. 13). For setup instructions,

refer to the controller installation manual.

INDOOR UNIT ELECTRIC CONTROL BOX

INDOOR UNIT DISPLAY PANEL

5-CORE CABLE

'_" 5-CORE SHIELDED CABLE

5-CORE CABLE

WIRED CONTROLLER

Fig. 13 -- Wired Remote Controller

(Non-Programmable) Wiring

CENTRAL CONTROLLER-- The central controller is connected to the indoor unit through outdoor unit with 3-core

shielded cable (see Fig. 14). For setup instructions, refer to the controller installation manual.

REMOTE CONTROLLER

REMOTE

CONTROLLER

HOLDER

Fig. 11 -- Wireless Remote Controller

WIRED REMOTE CONTROLLER (PROGRAMMA- BLE) -- 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. 12). For setup in- structions, refer to the controller installation manual.

INDOOR UNIT

ELECTRICAL BOX-_

I LL_ CABLE

Fig. 12 -- Wired Remote Controller

(Programmable) Wiring

o o

Y°

TO INDOOR UNIT i i I L_ 24 VAC

X2KE _ _ FORCED L EMERGENCY

DAISY cHAi2oT USED_ sOwNITCH sS;IOT%H

Fig. 14 -- Central Controller Wiring

START-UP

Pre-Start Check -- Once installation is complete, make

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 drams are installed correctly.

5. The power supply is of the right voltage and frequency.

6. The units are properly grounded in accordance with cur-

rent electrical codes.

7. Suction and liquid line service valves are in open posi-

tion.

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 m operation, check the following on indoor umt:

Switches or buttons on the remote controller are easy to push.

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. Dram pump operation is normal (if applicable). e. No abnormal vibration or noise is noticed.

While the system is m 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 the unit is turned off or restarted, there is a time delay of 3 minutes for the compressor to start from the time the

power is restored.

MAINTENANCE

When servicing or repairing this unit, use only factory- approved 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.

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 the air filter condition. Clean or replace if neces- sary.

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 the heating and cooling action to confirm proper operation.

TROUBLESHOOTING

Figure 15 shows shows the LED display panels for

40WAW007-018 and 40WAW024 units. See Table 3 for a smmnary of display indicators. Table 4 lists problems, possible

causes, and possible solutions.

OPERATION TIMER

TIMER

Fig. 15 -- 40WAW LED Display Panel

40WAWO07-O 18

OPERATION

DEE/FAN

40WAW024

ERROR CODE MODE/STATUS

Operation Light ON Operation Light OFF Operation Light Flashing Slow*

[NO ERROR]

E0 E1

E2 E3 E4

E7 Ed

*Flashing Slow = Flashing once per second. tFlashing Fast = Flashing twice per second.

ERROR DISPLAY

Defrost Light Flashing Fast (Heating/

Cooling Mode Conflict Error) (40WAW024 only)

Timer LightFlashing Fast

(Communication Error)

E2, E3,

Operation Light Flashing Fast

(Sensor Error)

(EEPROM Error) (40WAW024 only)

Alarm Light Flashing Slow (Outdoor

Unit Error)

(40WAW024 only)

Alarm Light Flashing Fast (Water

Level Error)

(40WAW024 only)

Operation and Timer Lights Flashing

Fast Together

(Address Error)

Timer Light ON Timer Light OFF

Defrost / Fan Light ON (40WAW024 only) Defrost / Fan Light OFF (40WAW024 only)

Defrost / Fan Light Flashing Fastt

40WAW024 only)

Timer Light Flashing Fast

Operation Light Flashing Fast

Defrost / Fan Light Flashing Slow

40WAW024 only) Alarm Light Flashing Slow (40WAW024 only) Outdoor Unit Error Alarm Light Flashing Fast (40WAW024 only) Water Level Error

Operation and Timer Lights Flashing Fast Indoor Unit Turned ON But Does Not Have An Address

Table 3 -- LED Display Indicators

LED DISPLAY

Starting Shutdown

Standby

Timing ON Timing OFF

System Defrost ON System Defrost OFF

Heating / Cooling Mode Conflict Error Communication Error Between Indoor and Outdoor Unit

Check Indoor Ambient Temperature Sensor (T1) Check Evaporator Temperature Sensor (T2) Check Evaporator Outlet Temperature Sensor (T2B)

EEPROM Error (Data Storage)

Table 4 -- Troubleshooting

POSSIBLE CAUSES

System is in cooling or fan only mode and heating signal is received from a unit on the system,

System is in heating mode and cooling sig- nal is received from a unit on the system,

Signal wires are short-circuited or disconnected,

Signal wire order is incorrect, Signal wires crossing over high voltage

_ower wires.

Signal wire close to electromagnetic source.

Signal wire length exceeds 360 ft.

PC board fault. Loose connection at port on PC board.

Sensor is short-circuited.

PC board fault.

Chip or PC board fault.Defrost Light Flashing Slow

Outdoor unit fault. Refer to outdoor unit troubleshooting guide.

Loose connection or disconnected at port

on PC board. Water level float is stuck.

Trap slope is too steep.

Drain pipe is too long. Drain pump faulty.

Indoor unit without address.

All units should be in cooling mode for system to stay in cooling mode,

All units should be in heating mode.

Check or reconnect signal wire.

Correct signal wire order. Separate and distance the signal wire from high

voltage power wires.

Distance signal wires from electromagnetic

source.

Reduce the signal wire length. Replace PC board.

Tighten the connection at port on PC board.

Using multi-meter, measure resistance of the sen-

sor. If the resistance is < 100 ohms, change the sensor.

Replace PC board. Replace PC board.

Tighten the connection or reconnect at port on PC

board.

Inspect the float. Adjust the trap slope. Adjust the length of drain pipe.

Replace the drain pump.

Run automatic addressing option at the outdoor

unit.

Use remote wireless or wired controller to re- address indoor unit.

POSSIBLE SOLUTIONS

Replacement Parts E 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. 16.

MODEL 4OWAWOOg---3 USE ONLY REFRIGERANT- R410A SERIAL 2115V40002

FAN MOTOR VOLTS PH HZ FL._ HP WOUT Carder Corporation

._" WALL MOUNTED UNIT CONDENSING UNIT ISREQUIREDTO COMPLETETHE ¢_!'_. f_lgJu_ _o _ 1t50 15 7310 West Morris Street

iNSTALLATIONSUITABLEFOR iNDOOR _I

Indianapo{is, IN 46231 USA

MADEINCHINA 340802-202REV,B

Fig. 16 -- Unit Serial Plate (Example)

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-534OO008-01 Printed in U.S.A. Form 40WAW-ISI Pg 12 6-15 Replaces: New

Carrier 40WAW009, 40WAW012, 40WAW015, 40WAW018, 40WAW024 Installation And Maintenance Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual