Friedrich CP05 Service Manual

Friedrich CP05 Service Manual

Friedrich air conditioning company room air conditioner owner's manual

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Service Manual

2006
Room Air Conditioners
RAC-Svc-06 (3-06)
Exhaust
EFFICIEN CY
PM
SUPER HIGH
Power
On/Off
Cool
MoneySav er
®
Fan
Mode
Fan Only
Speed
Clock
Set
Start
Timer
Hour
Stop
On/Off
Temp/Ho ur
Vent shut

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Summary of Contents for Friedrich CP05

  • Page 1: Service Manual

    Service Manual 2006 Room Air Conditioners RAC-Svc-06 (3-06) Exhaust EFFICIEN CY SUPER HIGH Power On/Off Cool MoneySav er ® Mode Fan Only Speed Clock Start Timer Hour Stop On/Off Temp/Ho ur Vent shut...
  • Page 2: Table Of Contents

    If you install or perform service on equipment, you must assume responsibility for any bodily injury or property damage which may result to you or others. Friedrich Air Conditioning Company will not be responsible for any injury or property damage arising from improper installation, service, and/or service procedures.
  • Page 3: Warranty

    ROOM AIR CONDITIONERS ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from date of original purchase, FRIEDRICH will repair the product at no charge, provided room air conditioner is reasonably accessible for service.
  • Page 4: Routine Maintenance

    NOTE: Units are to be inspected and serviced by qualifi ed service personnel only. Routine maintenance is required annually or semi-annually, depending upon annual usage. Clean the unit air intake fi lter at least every 250 to 300 fan hours of operation or when the unit’s indicator light is on if so equipped.
  • Page 5: Unit Identifi Cation / Nomenclature

    1st Digit – Function S = Straight Cool, Value Series Y = Heat Pump E = Electric Heat K = Straight Cool R = Straight Cool X = Straight Cool W = Thru-the Wall, WallMaster Series 2nd Digit C = Casement Q = Q-Star S = Small Chassis M = Medium Chassis...
  • Page 6: Performance Data

    PERFORMANCE DATA CONDENSER EVAPORATOR AIR TEMP °F TEMP °F Model Temp Discharge Drop °F Q-Chassis XQ05L10-A XQ06L10-A XQ08L10-A XQ10L10-A XQ12L10-A EQ08L11-A S-Chassis SS08L10-B KS10L10-A RS10L10-A SS10L10-B KS12L10-A RS12L10-A SS12L10-B KS15L10-A RS15L10-A SS14L10-B KS12L30-A SS12L30-B SS16L30-B RS16L30-A ES12L33-A ES16L33-A YS09L10-A YS09L10-B YS09L10A-A YS13L33-A M-Chassis...
  • Page 7: Electrical Data

    The consumer - through the AHAM Room Air Conditioner Certifi cation Program - can be certain that the AHAM Certifi cation Seal accurately states the unit’s cooling and heating capacity rating, the amperes and the energy effi...
  • Page 8: Functional Component Defi Nitions

    FUNCTIONAL COMPONENT DEFINITIONS MECHANICAL COMPONENTS Bellows condensate valve Temperature-sensitive valve that opens up to drain off condensate water when the outside temperature falls below 40°F and closes when the outside temperature reaches 58°F. Vent door Allows introduction of fresh air into the room and/or exhausts stale room air outside (on select models.) Plenum assembly Diffuser with directional louvers used to direct the conditioned airfl...
  • Page 9: Electronic Controls

    ELECTRONIC CONTROLS TESTING THE ELECTRONIC CONTROL XQ/WS BOARDS & QME BOARDS Activating Test Mode: Activate test mode by pressing at the same time the “MODE” button and the temperature “DOWN” button on XQ & WS models. LEDs for Hour, Start, and Stop will blink 1 bps while Test Mode is active.
  • Page 10: Refrigeration System Sequence Of Operation

    REFRIGERATION SYSTEM SEQUENCE OF OPERATION A good understanding of the basic operation of the refrigera- tion system is essential for the service technician. Without this understanding, accurate troubleshooting of refrigeration system problems will be more diffi cult and time consuming, if not (in some cases) entirely impossible.
  • Page 11: Hermetic Component Replacement

    EQUIPMENT REQUIRED Voltmeter Ammeter Ohmmeter E.P.A. Approved Refrigerant Recovery System. Vacuum Pump (capable of 200 microns or less vacuum.) Acetylene Welder Electronic Halogen Leak Detector (G.E. Type H-6 or equivalent.) Accurate refrigerant charge measuring device such as: a. Balance Scales - 1/2 oz. accuracy b.
  • Page 12: Refrigerant Charging

    REFRIGERANT CHARGING NOTE: BECAUSE THE RAC SYSTEM IS A SEALED SYSTEM, SERVICE PROCESS TUBES WILL HAVE TO BE INSTALLED. FIRST INSTALL A LINE TAP AND REMOVE REFRIGERANT FROM SYSTEM. MAKE NECESSARY SEALED SYSTEM REPAIRS AND VACUUM SYSTEM. CRIMP PROCESS TUBE LINE AND SOLDER END SHUT. DO NOT LEAVE A SERVICE VALVE IN THE SEALED SYSTEM.
  • Page 13 REFRIGERANT CHARGING cont’d UNDERCHARGED REFRIGERANT SYSTEMS An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. Whenever you service a unit with an under charge of refrigerant, always suspect a leak. The leak must be repaired before charging the unit.
  • Page 14: Refrigerant Charging

    REFRIGERANT CHARGING cont’d RESTRICTED REFRIGERANT SYSTEM A quick check for either condition begins at the evaporator. With a partial restriction, there may be gurgling sounds at the metering device entrance to the evaporator. The evaporator in a partial restriction could be partially frosted or have an ice ball close to the entrance of the metering device.
  • Page 15: Troubleshooting

    TROUBLESHOOTING TOUCH TEST CHART: TO SERVICE REVERSING VALVES VALVE OPERATING CONDITION Cool Normal Cooling Cool as (2) Normal Heating Cool as (1) Check Electrical circuit and coil Check refrigeration charge Cool Cool, Valve will not as (2) shift from cool to heat.
  • Page 16 COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Problem Low voltage T-stat not set cold enough or inop- erative Compressor hums but cuts off on B10 overload Compressor Open or shorted compressor wind- does not run ings Open overload Open capacitor Inoperative system switch Broken, loose or incorrect wiring Problem...
  • Page 17: Wiring Diagrams

    Problem Possible Cause Fuse blown or circuit tripped Power cord not plugged in Unit does not run System switch in "OFF" position Inoperative system switch Loose or disconnected wiring at switch or other components Problem Possible Cause Dirty fi lter Restricted airfl...
  • Page 18 Instruct customer of waiting period Check voltage with unit operating. Check for other appliances on circuit. Air conditioner should be in separate circuit for proper voltage & fused separately Refer to appropriate wiring diagram...
  • Page 19 Problem Possible Cause Sublimation: When unconditioned saturated, outside air mixes with conditioned air, condensation forms on the cooler surfaces Water "spitting" into room Downward pitch of installation is too steep Restricted coil or dirty fi lter Problem Possible Cause Insuffi cient air circulation thru area to be air conditioned Oversized unit Excessive moisture...
  • Page 20 HEAT / COOL ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Problem Heat anticipator (resistor) shorted (on applicable models) Room temperature uneven Wide differential - partial loss of (Heating cycle) t-stat bulb charge Incorrect wiring Problem Incorrect wiring Defrost control timer motor not advancing (applicable models) Defrost control out of calibration (applicable models)
  • Page 21 Problem Incorrect wiring Defective solenoid coil Unit cools when heat is called for Reversing valve fails to shift Inoperative system switch Problem Heating capillary tube partially restricted Cooling adequate, Check valve leaking internally but heating insuffi cient Reversing valve failing to shift completely;...
  • Page 22 TROUBLESHOOTING CHART — HEATING REFRIGERANT SYSTEM DIAGNOSIS – HEATING Low Suction Pressure Low Airfl ow Across Outdoor Coil Refrigerant System Restriction Undercharged Moisture in System ELECTRICAL TROUBLESHOOTING CHART — HEAT PUMP Is Line Voltage Present at the Solenoid Is the Solenoid Coil Good? Reversing Valve Stuck Replace the Reversing Valve High Suction Pressure...
  • Page 23 MODEL SC06H10D...
  • Page 24 MODELS XQ05L10-A,B; XQ06L10-A,B,C,D; XQ08L10-A,B; XQ10L10-A,B; XQ12L10-A,B...
  • Page 25 MODELS KS10L10-A, RS10L10-A, KS12L10-A, KS12L30-A, KS15L10-A, RS15L10-A, RS16L30-A, RM18L30-A, KM18L30-A, KM21L30-A, RM24L30-A, KM24L30-A...
  • Page 26 MODELS SS08L10-A/B, SS10L10-A/B, SS12L10-A/B; SS12L30-A/B, SS14L10-A/B, SS16L30-A/B, SM18L30-A/B, SM21L30-A/B, SM24L30-A/B...
  • Page 27 MODEL SL36L30-A...
  • Page 28 MODEL SL28L30-A...
  • Page 29 MODELS SL36L30-B...
  • Page 30 MODEL EQ08L11-A...
  • Page 31 MODELS ES12L33-A, ES16L33-A, EM18L34-A, EM24L35-A...
  • Page 32 MODEL EL36L35-A...
  • Page 33 MODEL YS09L10-A, YS09L10-B...
  • Page 34 MODELS YS13L33-A, YM18L34-A...
  • Page 35 MODELS YL24L35-A...
  • Page 36 Friedrich Air Conditioning Co. Post Office Box 1540 • San Antonio, Texas 78295-1540 4200 N. Pan Am Expressway • San Antonio, Texas 78218-5212 (210) 357-4400 • FAX (210) 357-4480 www.friedrich.com Printed in the U.S.A. RAC-Svc-06 (3-06)

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