Koldfront WTC8001W Service Manual
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Koldfront WTC8001W Service Manual

Through the wall air conditioner
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See also: Owner's Manual
Document Type: Service Manual
Version: V1.0 04112018

SERVICE MANUAL

Koldfront Through the Wall Air Conditioner
MODELS COVERED:
WTC8001W
WTC12001W
WTC8002WCO
WTC10002WCO115V
WTC10012WCO230V
WTC12002WCO115V
WTC12012WCO230V
WTC14012WCO230V
CAUTION: READ ALL SAFETY PRECAUTIONS IN THIS
MANUAL BEFORE SERVICING THE UNIT
EdgeStar, 8606 Wall St, Suite 1800, Austin, TX 78754
support.edgestar.com • service@edgestar.com • edgestar.com
*Warranty service should be performed by an authorized service representative only.

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  • Page 1: Service Manual

    Document Type: Service Manual Version: V1.0 04112018 SERVICE MANUAL Koldfront Through the Wall Air Conditioner MODELS COVERED: WTC8001W WTC12001W WTC8002WCO WTC10002WCO115V WTC10012WCO230V WTC12002WCO115V WTC12012WCO230V WTC14012WCO230V CAUTION: READ ALL SAFETY PRECAUTIONS IN THIS MANUAL BEFORE SERVICING THE UNIT EdgeStar, 8606 Wall St, Suite 1800, Austin, TX 78754 support.edgestar.com •...

  • Page 2: Table Of Contents

    SAFETY PRECAUTIONS ........................2 ELECTRICAL SAFETY ........................3 GENERAL SAFETY ......................... 4 1 EXPLODED DIAGRAMS AND PART LISTS ..................5 1.1 WTC8001W AND WTC12001W ..................... 5 1.2 WTC WCO MODELS ....................... 7 1.3 DIMENSIONS ......................... 9 2 WIRING DIAGRAM (ALL MODELS) ....................10 3 MAIN COMPONENTS........................

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS WARNING: This manual and the information contained herein is intended for use by certified technicians. The manufacturer or seller is not responsible for the interpretation or misuse of the information provided, nor does it assume any liability in connection with its use. The safeguards and warnings indicated in this manual do not cover all possible conditions which may occur.

  • Page 4: Electrical Safety

    Electrical Safety  Do not exceed the power outlet ratings.  It is recommended that the unit be connected to its own circuit.  A standard electrical supply that is properly grounded in accordance with the National Electrical Code and all state and local codes and ordinances is required. ...

  • Page 5: General Safety

    General Safety  Always unplug an appliance from the power supply before attempting any service. Disconnect the power cord by grasping the plug, not the cord.  Do not allow children or pets to play on or in the appliance. ...

  • Page 6: Exploded Diagrams And Part Lists

    1 Exploded Diagrams and Part Lists 1.1 WTC8001W and WTC12001W...
  • Page 7 Part Name Part Name Display assembly Electric heater Front panel Electronic control box assembly Air outlet assembly 23.1 Capacitor for fan motor Air outlet 23.2 Electronic control box Horizontal louver 23.3 Transformer Connecting rod for louver 23.4 Bracket for main control board Horizontal louver 23.5 Main control board assembly...

  • Page 8: Wtc Wco Models

    1.2 WTC WCO Models...
  • Page 9 Part Name Part Name Display assembly Electrical heating box (for units with heat) Front panel Electronic control box assembly Air outlet assembly 23.1 Capacitor Air outlet 23.2 Electrical control box Horizontal louver 23.3 Transformer Connecting rod for louver 23.4 Mounting rack for main control panel Horizontal louver 23.5 Main control board...

  • Page 10: Dimensions

    1.3 Dimensions WTC Wall Unit Wall Sleeve Model: WTCSLV Width Height Depth WTC UNIT 24-1/4” (615 mm) 14-1/2” (369 mm) 20-1/4” (515 mm) WTC SLEEVE 25-5/8” (649 mm) 15-1/4” (388 mm) 17-1/2” (445 mm)

  • Page 11: Wiring Diagram (All Models)

    2 Wiring Diagram (All Models) Note: This wiring diagram is for illustration purposes only. The actual shapes of components may be different. @ indicates optional components that are not included in all models.

  • Page 12: Main Components

    3 Main Components 3.1 Major Parts 3.2 Electronic Control Box and Main PCB 4 Operating Instructions 4.1 Display Panel Controls...

  • Page 13: Unit Operation

    4 Unit Operation 4.1 Display Panel Controls On-Off Button Press to turn on or off the unit. NOTE: The Energy Saver feature will automatically turn on in Cool, Dry, and Auto mode. Up and Down Button Press or hold either Up or Down button until desired temperature is seen on the digital display.
  • Page 14 Fan speed Button To select the speed of the fan press Fan Speed which cycles through four steps- Auto, Low, Medium, or High. Each time the button is pressed the fan speed mode is shifted. NOTE: The fan speed is automatically set to low and cannot be adjusted in Dry mode. Energy Saver Button To start the Energy Saver feature, press the Energy Saver button.

  • Page 15: Remote Control

    4.2 Remote Control  The remote control has an operating range of 16 ft. from the appliance.  The remote signal receiver/sensor is located on the control panel of the air conditioner.  Reception of signal commands is confirmed by an audible beep. ...

  • Page 16: Installation And Cleaning

    5 Installation and Cleaning 5.1 Proper Installation and Drainage Older Koldfront window air conditioners included a drain plug that could be removed to assist with water drainage in excessively humid operating environments. Current models DO NOT use drain plugs. WAC series air conditioners were modified to increase unit operating efficiency and as a result the drain hole and plug have been removed.

  • Page 17: Cleaning The Filter

    5.2 Cleaning the Filter In order to maintain energy efficiency and prolong the life of the unit the air filter should be checked at least once a month to see if cleaning is necessary. In addition, trapped particles in the filter can quickly build up and cause frost on the evaporator.

  • Page 18: Modes And Operating Conditions

    6 Modes and Operating Conditions 6.1 Terms and Definitions 1. TA: Temperature of indoor ambient. 2. TE: Temperature of evaporator. 3. TS: The set temperature. 4. DAHT: Heater sensor. 6.2 Protection Functions  The compressor restart protection has a delay of 3 minutes. ...

  • Page 19: Cooling Mode

    6.5 Cooling Mode  The cooling temperature can be set from 62 to 86℉ (17 to 30℃.)  Sleep, Timer and Energy Saver functions work in cooling mode.  The compressor will run when the difference between the set temperature and the actual ambient room temperature conforms to the chart below: Operation conditon (TA-Ts) ℉...

  • Page 20: Dry Mode

    6.7 Dry Mode  In this mode, the air conditioner will operate as a dehumidifier. Because the conditioned space is closed or sealed, some degree of cooling will continue to occur.  The dry mode temperature can be set from 62 to 86℉ (17 to 30℃.) ...

  • Page 21: Troubleshooting

    7 Troubleshooting 7.1 Troubleshooting Guide Problem Possible Cause Solution Wall plug is disconnected. Insert plug firmly into proper wall outlet. House fuse blown or circuit Replace fuse with time delay type or reset breaker tripped. circuit breaker. Power cord is tripped. Press the RESET button on the power cord.

  • Page 22: Error Codes And Sensor Malfunctions

    Front of unit is blocked by drapes, blinds, furniture, etc. Clear blockage in front of unit. and is restricting air distribution. Doors, windows, registers, etc. are open and cold air is Close doors, windows, registers. escaping. Unit recently turned on in hot Allow additional time for unit to remove stored room.

  • Page 23: Temperature Sensor Resistance Test Table

    7.3 Temperature Sensor Resistance Test Table Temp. Temp. Resistance Temp. Temp. Resistance Temp. Temp. Resistance KΩ KΩ KΩ ℃ ℉ ℃ ℉ ℃ ℉ 62.2756 62.6 14.6181 111.2 4.3874 15.8 58.7079 64.4 13.918 4.2126 17.6 56.3694 66.2 13.2631 114.8 4.0459 19.4 52.2438 12.6431...
  • Page 24 DATE REVISION NOTES 04/11/2018 INITIAL DOCUMENT EdgeStar, 8606 Wall St, Suite 1800, Austin, TX 78754 support.edgestar.com • service@edgestar.com • edgestar.com *Warranty service should be performed by an authorized service representative only.

This manual is also suitable for:

Wtc10002wco115vWtc10012wco230vWtc12012wco230vWtc12002wco115vWtc12001wWtc14012wco230v ... Show all

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