Haier H2SM-14HC03/R2 Service Manual
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Haier H2SM-14HC03/R2 Service Manual

Domestic air conditioner
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See also: Operating Manual
Domestic Air Conditioner

SERVICE MANUAL

Features
Comfortable:wide-angle airflow
Health air purifying
Quiet operation
Engergy efficient
Wide variety of functions
Serial Number:
Versio n:00.00
Models :
H2SM-14HC03/R2
H2SM-18HC03/R2
Edition: 2005-3-25

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Summary of Contents for Haier H2SM-14HC03/R2

  • Page 1: Service Manual

    Domestic Air Conditioner SERVICE MANUAL Models : H2SM-14HC03/R2 H2SM-18HC03/R2 Features Comfortable:wide-angle airflow Health air purifying Quiet operation Engergy efficient Wide variety of functions Serial Number: Versio n:00.00 Edition: 2005-3-25...

  • Page 2: Table Of Contents

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Content 1. Description of product model coding and series introduction 2. Specifications 3. Curves of performance 4. Description,net dimensions and functions of main component s and accessories 5. Brief introduction to electrical control functions 6.

  • Page 3: Description Of Product Model Coding And Series Introduction

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Description of product model coding and series introduction...
  • Page 4 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 A. Description of coding rules of unit model The type of power supply Developing sequence C-cooling only H-heat pump Function code e-electric aided heating numbers based on thousand unit The structure code of indoor & outdoor unit...
  • Page 5 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 C.Series brief introduction 1.comfortable:wide-angle airflow The vertical dual-flap and horizontal wide-angle louvers ensure the cool(warm air reaches every corner of the room. 2.Health air purifying and negative ion function An air purifying filter with deodorizing and disinfecting functions keeps the air clean and users healthy.The negative ion generator can produce the negative ion that make the air fresher and cleaner.

  • Page 6: Specifications

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Specifications...

  • Page 9: Curves Of Performance

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 CURVES OF PERFORMANCE OF COMPRESSOR...

  • Page 10: Performance Curve

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Performance Curve Return Gas Temperature 39A173A Model Subcooling 220-230V / 50Hz / 1PH Power Supply 25 μF / 370 VAC Ambient Temperature Run Capacitor Cond. Temperature 2500 2330 2160 1990 1820 1650 1480 1310 1140 4.00...
  • Page 11 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Performance Curve Return Gas Temperature 44A233A Model Subcooling 220-230V / 50Hz / 1PH Power Supply 40 uF / 370 VAC Ambient Temperature Run Capacitor Cond. Temperature 3500 3300 3100 2900 2700 2500 2300 2100...
  • Page 12 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 DESCRIPTION, DIMENSION & FUNCTION OF MAIN COMPONENTS AND ACCESSORIES...
  • Page 13 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Description and function of main components and accessories...
  • Page 14 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Net dimensions for indoor unit Net dimensions for outdoor unit 319.5...
  • Page 15 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 BRIEF INTRODUCTION TO ELECTRICAL CONTROL FUNCTION...
  • Page 16 one. Temperature Control Function In temperature control function, the operation frequency of outdoor unit is determined based on room temperature and the set temperature. In automatic fan speed mode, indoor fan is controlled based on the need of temperature control In heating mode, indoor fan is controlled based on the temperature of coil.
  • Page 17 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 two. Indoor Fan Control 2-1. Heating 2-1-1. Warm Start Two. Cold Air Control in Heating Mode Heat Exchange Temperature: THHOT3 37.0 THHOT2 35.2 THHOT1 25.2 4mins THHOTR Stop SLO SLO Stop Conduct indoor fan control as per the above diagram and the heat exchange temperature.
  • Page 18 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Fan will stop if compressor stops Fan is at super low level upon the end of 3 mins standby. Compressor is on after 3 mins standby. 2-3-2. Compressor is on. When airflow is set at high, mid or low level, fan will operate as per the setting.
  • Page 19 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Eight . EEPROM Control When outdoor unit is supplied with power, if there is any inconsistency between EEPROM parameter and checksum, EEPROM error. When indoor unit receives EEPROM error signal from outdoor unit, it will display outdoor unit EEPROM error.
  • Page 20 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Eleven . Error Presentation Mode 11.1 Three Indicator Error Code Error Display PS Timer Operation Error Conditions Cause Operation Heating Cooling Indoor Senistor Error 1. Connector loose contact or ambient temperature sensor error. Indoor Heat Exchange 1.
  • Page 21 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Outdoor PCB Function Manual 1. Single-unit cooling operation 1.1When the single unit’s indoor unit gives a cooling signal, the corresponding outdoor compressor carries out cooling operation. During the operation, the outdoor fan operates 1 second before the compressor operates.
  • Page 22 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 2.4 When the outdoor ambient temperature T1 30 , the outdoor fan runs at the high speed. There is a return difference for the change between high and medium speed; When the outdoor ambient temperature T1 23 , the outdoor fan runs at the low speed.
  • Page 23 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 High temperature cut-off protection: When the indoor coil temperature higher than T_CPS (68 ) and maintains for 10 seconds, both the compressor and outdoor fan stop, and the indoor fan operates as the thermostat is Off. The compressor will not restart in 3 minutes until the coil temperature lower than T_CP R(50 ).
  • Page 24 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 based on the value of the coil temperature it has received. If the conditions for high load protection are met, the outdoor fan stops immediately. It will restart 45 seconds later if the signal for the outdoor heat load disappears. Otherwise, the outdoor fan will continue to stop until the signal for the outdoor heat load disappears.
  • Page 25 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 coil temperature lower than T_CP R(50 ). 7.2 When the outdoor single-unit gives out the heat load signal, the outdoor fan stops immediately, 45 minutes later, the heat load signal disappears, and the outdoor fan operates.
  • Page 26 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 C=0.8 TA 0 C=0.6 In the place where it tends to frost, it is preferred to choose H. In the place where it does not intend to frost, it is preferred to choose L. It is set M at delivery.
  • Page 27 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 be turned off until the outdoor defrosting lasts more than 2 minutes. When the double units are activated for defrosting, the activation of compressor B is 20 minutes later than that of compressor A.

  • Page 28: Abnormity Diagnose

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 ABNORMITY DIAGNOSE...

  • Page 29: Codes And Description

    H2SM-14/18C03/R2 Codes and Description Code indication Outdoor led1 Description blinks times indoor Power timer operate Operate heating cooling ¡ï Room temperature sensor failure ¡ ö ¡ ö ¡ï Heat-exchange sensor failure ¡ õ ¡ õ Indoor Indoor EEPROM error ¡ ï ¡...
  • Page 30 H2SM-14/18C03/R2 : Indoor EEPROM error: ¡ï Replace the PCB of indoor unit ¡ õ ¡ ï :Indoor fan motor malfunction ¡ö ¡ õ ¡ ï whether terminal CN7 Pull out and reinsert the terminals and CN11 on indoor PCB well inserted or not? Electrify the machine again and turn it on in the cooling operation, positions 1 (...
  • Page 31 H2SM-14/18C03/R2 outdoor EEPROM error: Replace the PCB of outdoor unit, LED1 of outdoor pcb flashes once ¡ï ¡ õ ¡ ö Outdoor ambient Sensor failure LED1of outdoor pcb flashes twice whether terminal CN1 on Pull out the terminals on the outdoor mainboard and outdoor PCB contact well? reinsert them Pull the sensor out of the mainboard...
  • Page 32 H2SM-14/18C03/R2 ¡ ö ¡ ö ¡ ï :Communication fault between indoor and outdoor system Check whether the linking cable between the indoor and outdoor Reconnect the linking cable; is not well connected If unit A have error , please turn please reverse outdoor...
  • Page 33 H2SM-14/18C03/R2 failure CN2 LED1 of outdoor pcb flashes 5 or 9 times outdoor unit A or B’s coi sensor whether terminal CN2 on Pull out the terminals on the outdoor mainboard and outdoor PCB contact well? reinsert them Pull the sensor out of the mainboard Measure the value of resistance Between its two jumpers Measure the temperature of...

  • Page 34: Wiring Diagram

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 WIRING DIAGRAM...
  • Page 35 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 36 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...

  • Page 37: Circuit Diagram

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 CIRCUIT DIAGRAM 4 36...
  • Page 38 H2SM-14/18C03/R2 BEEP-PKM13EPY - 4002 BUZ1 +12v 104/50v 1N4007 R13 10K D1-D4 FUSE 7805 3.15A 104/275V 561K IN4007 4.7k 2SC2412 2SC2412 2SC2412 R27 10K 103/50v 470UF/16V 2200UF/25V R66 27 2SC2412 0-171825-3 RTB-1.5-2P B2P3-VH-A +12V 104/50V 4.7K 100u/25v R41 1K 02 IRQ R9 4.7K R28 1K C5 102...
  • Page 39 43 38...

  • Page 40: Trouble Shooting

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 TROUBLE SHOOTING 44 39...
  • Page 41 Model: H2SM-14HC03/R2 Model: H2SM-14HC03/R2 Model: H2SM-14HC03/R2 Domestic Air Conditioner Domestic Air Conditioner Domestic Air Conditioner H2SM-18HC03/R2 H2SM-18HC03/R2 H2SM-18HC03/R2...

  • Page 42: Refrigerating Cycle Diagram

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 REFRIGERATING-CYCLE DIAGRAM 46 41...
  • Page 43 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 Warning and cautions : 1.1 The multi-mounted split unit adopts double separated cooling systems (A and B) that are not connected together. If the refrigerant leaks, the leaking system of them must be determined. So we can solute the abnormality. And refill the system that lacks refrigerant.

  • Page 44: Air Velocity Distribution

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 NOISE LEVEL TEST CHART & AIR VELOCITY DISTRIBUTION 48 43...
  • Page 45 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 46 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 B.Air velocity distribution...
  • Page 47 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 INSTALLATION & MAINTENANCE...
  • Page 48 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 49 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 50 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 51 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...

  • Page 52: Outdoor Unit

    Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2 YEL/GRN YEL/GRN Indoor unit A YEL/GRN YEL/GRN Indoor unit B YEL/GRN Outdoor unit...
  • Page 53 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 54 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 55 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...
  • Page 56 Model: H2SM-14HC03/R2 Domestic Air Conditioner H2SM-18HC03/R2...

This manual is also suitable for:

H2sm-18hc03/r2

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