Carrier 53KLE Service Maintenance Manual
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Carrier 53KLE Service Maintenance Manual

Carrier 53KLE Service Maintenance Manual

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SERVICE & MAINTENANCE MANUAL
2005

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Summary of Contents for Carrier 53KLE

  • Page 1 SERVICE & MAINTENANCE MANUAL 2005...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS PAGE NO. 1. Precautions for Service & Maintenance 2. Split System Description 3. Unit Model Designation & Identification 4. Unit Models & Part Numbers 5. System Operating Limits 6. System Safety Protections 7. Exploded View of Indoor Unit 8.

  • Page 3: Precautions For Service & Maintenance

    8- Refrigerant normal noise, wear and tear of deterioration. 9- Inconvenience or commercial loss is not covered. The decision of Carrier in ascertaining the same will be final. Any such repairs will be carried out at the expense of the purchaser.

  • Page 4: Split System Description

    • Drains the water condensated in the indoor unit during cooling operation to the outside. Fig. (1) CONSOLE & UNDERCEILING SPLIT SYSTEM 53KLE-H SERIES HEAT PUMP (b) OUTDOOR UNIT 53KLE-E SERIES COOL/ELECTRIC HEAT 53KLE-C SERIES COOL ONLY • Mounted outside the space to be air-conditioned.

  • Page 5: Unit Model Designation & Identification

    3. UNIT MODEL DESIGNATION & IDENTIFICATION UNIT MODEL DESIGNATION IDENTIFICATION (ID) 42 = Indoor Unit Compressor Unit Family Unit Type 38 = Outdoor Unit Cooling Capacity H = Heat Pump in MBTU/HR E = Cool/Electric Heat at ASHARE C = Cool Only Conditions 4.

  • Page 6: System Operating Limits

    5. SYSTEM OPERATING LIMITS COOLING HEATING Dry Bulb Wet Bulb Dry Bulb Wet Bulb Difference Difference Temp. C° Temp. C° Temp. C° Temp. C° Indoor temperature Indoor temperature Maximum Maximum Minimum Outdoor temperature Outdoor temperature Maximum Maximum Minimum MAIN POWER SUPPLY Nominal Minimum Maximum...

  • Page 7: Exploded View Of Indoor Unit

    7. EXPLODED VIEW OF INDOOR UNIT 12/1 12/4 12/5 & 12/3 12/2 Pour 42KLE39...

  • Page 8: Part List Of Indoor Unit

    8. PART LIST OF INDOOR UNIT QTY./UNIT PART DESCRIPTION 42KLE-H 42KLE-E 42KLE-C NUMBER Chassis Subassy 363-13331 363-13332 363-13333 1.1 Chassis Side LH Subassy 363-13327 1.2 Chassis Back 063-01800 063-01801 063-01802 1.3 Fan Deck Support 028-02318 1.4 Plug 028-02319 1.5 Chassis Side RH Subassy 363-13329 1.6 Motor Capacitor 1.6.1 Capacitor 3MFD +/- 5 % , 450 VAC...
  • Page 9 PART LIST OF INDOOR UNIT (Cont.) QTY./UNIT PART DESCRIPTION 42KLE-H 42KLE-E 42KLE-C NUMBER Electrical Box Subassy 363-13338 363-13364 Main PCB 025-03019 Room Sensor 530 ± 30 mm 025-03102 Indoor Coil Sensor 530 ± 30 mm 025-03119 Cable Main PCB – Led PCB 025-01566 Cable Main PCB Step Motor 025-01567...
  • Page 10 EXPLODE VIEW AND PARTS LISTOF INDOOR UNIT (Cont.) (A) EXPLODED VIEW 18.1 18.2 SEE DETAILS 18.3 DETAILS 4 & 6...
  • Page 11 Step Motor MP35EAM 024-00167 Motor Support 028-02314 Gear 028-02315 Spacer For Step Motor 063-01839 Support RH – Flap 028-02311 Carrier Logo 035-00092 Cabinet Side LH 028-02304 Holder Support 028-02321 Support LH – Flap 028-02309 Bearing LH – Flap 028-02316 Flap Subassy...

  • Page 12: Exploded View Of Outdoor Unit

    9. EXPLODED VIEW OF OUTDOOR UNIT 19/1 19/5 19/2 19/4 19/8 19/3 19/3...

  • Page 13: Part List Of Outdoor Unit

    7.1 Motor 1/10 HP-880 RPM 02400154 7.2 Motor 1/5 HP-860 RPM 02400179 PROPELLER C/W SOCKET SCREW 8X8MM 02600441 ORIFICE PROPELLER 02803112 COND. SHROUD 08107406 06307435 CARRIER LOGO 02900615 HANDLE 02803110 GUARD PROPELLER 02803113 COND. BACK PANEL 06307409 06307434 COUPLING PANEL 06307410...
  • Page 14 PART LIST OF OUTDOOR UNIT (Cont.) QTY./UNIT DESCRIPTION PART NUMBER 38KLE-H 38KLE-C ELECTRICAL BOX SUBASSY 36314064 36314019 36314020 36314045 36313908 36313904 36314021 36314022 36313907 19.1 DUAL CAPACITOR 19.1.1 Dual Capacitor 35 + 5 MFD/370 VAC 02400376 19.1.2 Dual Capacitor 45 + 5 MFD/370 VAC * 02400644 19.1.3 Dual Capacitor 50 + 5 MFD/440 VAC 02400379...

  • Page 15: Wiring Diagrams

    11. WIRING DIAGRAM INDOOR UNIT 42KLE-H SERIES HEAT PUMP WIRING DIAGRAM INDOOR UNIT 42KLE-C SERIES COOL ONLY WIRING DIAGRAM...
  • Page 16 WIRING DIAGRAM (CONT.) INDOOR UNIT 42KLE39-E COOL/ELECTRIC HEAT WIRING DIAGRAM...
  • Page 17 WIRING DIAGRAM (CONT.) OUTDOOR UNIT 38KLE-H SERIES HEAT PUMP WIRING DIAGRAM OUTDOOR UNIT 38KLE-C SERIES COOL ONLY WIRING DIAGRAM...

  • Page 18: Field Electrical Connections Matching

    12. FIELD ELECTRICAL CONNECTIONS MATCHING HEAT PUMP SYSTEM COOL ONLY SYSTEM LEGEND ➊ Outdoor Unit ➋ Indoor Unit ➌ Main Switch ➍ Time-delay fuse or circuit breaker Earth Live power supply. Neutral power supply. Live connection indoor/outdoor unit. Neutral connection indoor/outdoor unit. Compressor control.

  • Page 19: Refrigeration Cycle

    13. REFRIGERATION CYCLE HEAT PUMP SYSTEM...
  • Page 20 REFRIGERATION CYCLE (Cont.) COOL ONLY SYSTEM...

  • Page 21: Self Diagnostic Function

    14. SELF-DIAGNOSTIC FUNCTION 14-1 INTRODUCTION - Self-diagnostic function is the key for success of air conditioner. - The printed circuit boards existing inside the indoor unit are equipped with self-diagnostic function to detect malfunction and automatically stops the operation at the air conditioner. 14-2 EXPLAINATION OF SELF-DIAGNOSTIC FUNCTION Once a malfunction is detected, the diagnostic control section will force the system mode to OFF for 3 minutes.

  • Page 22: Replacing Batteries Of Remote Control

    15. REPLACING BATTERIES OF REMOTE CONTROL (a) Mount Batteries (b) Close the cover of the battery compartment Remove the cover of battery compartment at the bottom back of the remote control by sliding it out in the direction of the arrow. Mount the two-battery size AAA 1.5 Volt supplied with (c) Press the RESET button of the wireless remote control the remote control.

  • Page 23: Air Filter Cleaning

    17. AIR FILTER CLEANING - The air filters supplied with the unit are high-efficiency washable and recyclable filters. - To establish, how frequently these should be cleaned, the operating conditions must be taken in to account. - REMOVAL OF AIR FILTERS FOR CLEANING: Open the return grille without removing the two screws and the central clamp from their position.

  • Page 24: Periodical Checks

    18. PERIODICAL CHECKS For a good operation of the air conditioner it is recommended to carry out checks and maintenance as indicated. Recommended maintenance intervals may very depending on the installation environment, e.g. dusty zones, etc. Indoor Unit Every Month Every 4 Months Every Year Clean air filter...

  • Page 25: Trouble Shooting

    19. TROUBLE SHOOTING TROUBLE REASON ACTION Compressor and outdoor fan will not Power failure Call power company start Fuse blown or / and circuit breaker tripped Replace fuse or reset circuit breaker Detective contactor Replace Low line voltage Determine cause and eliminate Incorrect or loose wiring Check wiring diagram and rewire correctly Temp.
  • Page 26 TROUBLE SHOOTING (Cont.) TROUBLE REASON ACTION Head pressure too low Low refrigerant charge Check for leaks, repair and recharge Restriction in liquid tube Remove restriction Indoor section air filter dirty Clear filter Excessive section pressure Reversing valve hung up or internal leak Replace Internal pressure relief open Check for source and eliminate...
  • Page 27 TROUBLE CHART (Cont.) TROUBLE REASON ACTION When pressing stop button, unit does Remote control batteries are exhausted. Replace batteries. not acknowledge signal with a beep. Remote control has not been pointed Turn remote control OFF and repeat the correctly to the receiver of indoor unit. operation in the correct direction.
  • Page 28 TROUBLE CHART (Cont.) TROUBLE REASON ACTION Air conditioner is not supplying Air flow cannot circulate freely Remove obstructions. enough cooling. Dirty filters reduce air quantity circulating. Clean air filters Doors and/or windows are open. Close doors and windows Fan speed has been set to “Low” Set fan speed at high speed.
  • Page 29 TROUBLE CHART (Cont.) TROUBLE REASON ACTION Strange noises coming from the Occasionally the indoor unit can emit Normal operation indoor unit. some strange short noises during operation or when it has stopped. These are generally due to the of temperature changes on the plastic parts. Starting in heating mode for heat If the system starts at low ambient Normal operation...

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