Haier HPU-42CV03 Service Manual
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Haier HPU-42CV03 Service Manual

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Commercial Air Conditioning
SERVICE MANUAL
Features
Long distribution pipe and high drop
The outdoor can match with multiple types indoor unit of the same capacity
The indoor unit is identical for heat pump and cooling only unit
Infra red remote controller
Central control and full automation, if connected with a central controller
Optional safety devices and much more precision control device
Auto-restart function
Manual code: SYJS-016-06REV.0
Model
HPU-42CV03
HPU-42HV03
Edition: 2006-06-12

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Summary of Contents for Haier HPU-42CV03

  • Page 1 Commercial Air Conditioning SERVICE MANUAL Model HPU-42CV03 HPU-42HV03 Features Long distribution pipe and high drop The outdoor can match with multiple types indoor unit of the same capacity The indoor unit is identical for heat pump and cooling only unit...

  • Page 2: Table Of Contents

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 CONTENTS Contents………………………………………………………...1 1. Description of products & features………………………..2 2. Specification…………………………………………………4 3. Safety precaution……………………………………………7 4. Net dimension of indoor and outdoor……………………..9 5. Installation instructions………..……………………………10 6. Parts and functions…………………………………………21 7. Infrared controller functions………………………………..22 8. Refrigerant diagram..………………………………………39 9.

  • Page 3: Description Of Products & Features

    Product type : “B” stands for cassette type, “C” stands for convertible type, ”D” stands for duct, “S” stands for split type, ”P” stands for cabinet system, "E" stands for ceiling concealed type. Haier Brand Air Conditioner 1.2 Brief Introduction for T1、T2、T3 working condition Climate type Type...
  • Page 4 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 1.5 Product features 1.5.1 Outdoor unit Flexible and easy installation The outdoor can meet the higher request of installation. From the specifications, you will find for each unit, how long and how high the piping will be, which will be convenient for design and installation.

  • Page 5: Specification

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 2. SPECIFICATION item Model HPU-42CV03 Function cooling heating Capacity BTU/h 41000 ---- 12.0 Capacity Sensible heat ratio ---- Total power input 3700 ---- Max. power input 4400 ---- 3.24 ---- EER or COP Dehumidifying capacity 10‐³×m³/h...
  • Page 6 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 item Model HPU-42HV03 Function cooling heating 41000 44000 Capacity BTU/h Capacity 12.0 13.0 Sensible heat ratio Total power input 3700 4000 Max. power input 4400 4900 3.24 3.25 EER or COP Dehumidifying capacity 10‐³×m³/h...
  • Page 7 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction. Testing method: standing-on-floor unit: If the unit cooling capacity is over 28000W, the noise level should be measured at the front, left, right directions respectively.

  • Page 8: Safety Precaution

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 3. Safety precaution of indoor and outdoor Carefully read the following information in order to operate the airconditioner correctly. WARNING! CAUTION! INSTRUCTIONS: The Safety Cautions should be at hand so that they can be checked at any time when needed.
  • Page 9 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 WARNING! No goods or nobody is permitted to Installed electrical-leaking circuit placed on or stand on outdoor unit. breaker. Air-conditioner can't be installed in the environment with inflammable gases because the inflammable gases near to air-conditioner may cause fire hazard.

  • Page 10: Net Dimension Of Indoor And Outdoor

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 4. Net dimension of indoor and outdoor Screw Hole (M10) Power wiring Terminal...

  • Page 11: Installation Instructions

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 5. Installation Instructions 5.1 Outdoor unit installation Necessary Tools: 1.Screwdriver 2.Hacksaw 3.70mm diameter hole drill 4.Spanner(dia.17,27mm) 5.Spanner(dia.14,17,27mm) 6.Pipe cutter 7.Flaring tool 8.Knife 9.Nipper 10.Gas leakage detector or soap water 11.Tape measure 12.Reamer 13.Refrigerant oil Installation Position ●Place strong enough to support the unit weight, and will not cause vibration and noise.
  • Page 12 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Installation Space Installation where the area with strong winds. Installation dimension of outdoor unit(mm) Refrigerant piping Outline piping Piping size...
  • Page 13 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Piping connection Air discharging method...
  • Page 14 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Piping connection Air discharging method...
  • Page 15 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03...
  • Page 16 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03...
  • Page 17 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 5.2 Indoor unit installation...
  • Page 18 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 045 .. 5-10 1* 05- * .. 2. 5 045 .. 5-10 1* 4, 2 / 5 . -2-0+ 100 5-10 ¿ “ / „ ˜ £ ˚ ‰ • ¸ ˛ ´ ¶ ¨ + ˛...
  • Page 19 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03...
  • Page 20 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 53- 7-3-0+...
  • Page 21 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Indoor & outdoor unit connection...

  • Page 22: Parts And Functions

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 6. Parts and Functions...

  • Page 23: Infrared Controller Functions

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 7. Infrared controller functions Remote controller YR-H49...
  • Page 24 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Operation instructions Clock set Remote controller's operation Loading of the battery Confirmation indicator: Auto Mode...
  • Page 25 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Cooling Mode...
  • Page 26 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Dry Mode Fan Mode...
  • Page 27 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Heating Mode Note: For cooling only type, this function is invalid.
  • Page 28 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Air flow adjustment SLEEP Mode Remote control unit...
  • Page 29 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Usage of the Sleep function Run mode 1. In cooling and dry 2. In heating 3. In automatic running 4. In Fan running Timer on/off operation (1) After unit start, select your desired operation mode.
  • Page 30 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 (3) Timer setting (4) Confirming your setting To cancel TIMER mode Hints Timer on-off function Remote controller operation TIMER ON-OFF (1) After unit start, select your desired operation mode. (2) TIMER mode selection (3) Timer setting for TIMER ON...
  • Page 31 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 (6) Time confirming for TIMER OFF To cancel TIMER mode Health & Fresh Air operation Health operation About Health operation Auto restart function Setting method (to be applied for a necessary situation) : Setting Method:...
  • Page 32 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Weekly timer YCS-A001 Instruction: Number Program Holiday Hour Cancel Min. Confirm Week Time ON/OFF 15 - 16 - 17 - 18 -...
  • Page 33 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Haier 2. Use weekly timer to realize weekly timing function, Program Holiday Number Hour Cancel Min. Confirm Time Week ON/OFF 3. Use weekly timer to realize two units auto-changeover function,...
  • Page 34 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Program Holiday Number Hour Cancel Min. Confirm Time Week...
  • Page 35 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 " " " " " " CENTRAL R EMOTE MONITER UNIT TEMP AUTO TIMER ON EVERY DAY TIMER OFF ROOM TEMP CENTRAL MODE FAN TIME TIMER SELECT REMOTE TEMP. TIME CONFIRM LOCK Note:...
  • Page 36 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 1. Communication function 2. LCD display function: 3. Key input function: 4. Unit number setting function: 5. Realizing central control function with the central controller 6. Central control system + Group control system...
  • Page 37 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Haier...
  • Page 38 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Installation procedure 91.5mm Note: MONITER CENTRAL R EMOTE UNIT TEMP AUTO TIMER ON EVERY DAY TIMER OFF ROOM TEMP CENTRAL MODE FAN TIME TIMER SELECT REMOTE TEMP. TIME CONFIRM LOCK...
  • Page 39 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 As illustrated: (Figure 1 is the front view and Figure 2 is the side view) The central controller is 180mm long, 120mm wide and 64.4 mm thick.

  • Page 40: Refrigerant Diagram

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 8. Refrigerant Diagram 8.1 HPU-42CV03...
  • Page 41 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 8.2 HPU-42HV03...

  • Page 42: Electrical Control Functions

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 9. Electrical Control Functions For indoor unit 1.Indoor AUTO FAN control A. During cooling program. If the unit enters AUTO FAN for the first time, when Tr＞Ts+2, select high speed; when Tr≤Ts, select low speed; or it will select med speed; If the present fan speed is AUTO HIGH, when Tr＜Ts+2, fan speed will change to AUTO MED.
  • Page 43 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 2. Automatic run 1). Cooling-heating type After the machine being started and running mode changes to AUTO, the system will decide running mode according to difference between the present room temperature and setting temperature, then runs as the decided mode. In the following selections, Tr means room temperature and Ts means setting temperature.
  • Page 44 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Tr≥Ts+3, the mode will be changed to cooling mode. cool Ts+3℃ cool ventilation Ts-3℃ ventilation 3. COOL mode control 4-way valve being powered off, compressor run/stop will depends on the temperature difference between the room temperature and the set temperature.
  • Page 45 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 system is in Area C, when Tr > Ts, change to Area B; If the system is in Area B, when Tr> Ts＋３, change to Area A; When Tr＜Ts－１, change to Area C. Area A Area A Ts＋3...
  • Page 46 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 the fan blade can swing or be fixed on one position. You can set TIMER or SLEEP mode. Overheat protection In heating mode, compressor has started up and indoor motor has run for over 30 seconds, if indoor coil temperature Tg>56℃, outdoor motor will chenge to LOW;...
  • Page 47 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Setting temperture Ts+2 Ts+1 SLEEP time In heating mode, after running at SLEEP mode for 1 hour, the set temperature reduces 2℃, another 1 hour later, the set temperature will reduce 2℃, and another 3 hours later, the set temperature rises 1℃;...

  • Page 48: Diagnostic Information (Troubleshooting)

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 10. Diagnostic information (troubleshooting) 10.1 Failure code 10.1.1 For outdoor units Fault code Failure description E3 / flash 3 times Outdoor ambient temp. sensor failure E4/ flash 4 times Outdoor coil temp. sensor failure E4/ flash 4 times Fault in discharging temp.
  • Page 49 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 10.2 Troubleshooting 1) Troubleshooting (before replacement of PCB) Service call Fault confirmation For example: no cooling, etc. 1.Is supply voltage acceptable? Confirm operating 2.Is temperature setting correct? (e.g. too high) conditions 3.Is system in TIMER mode? 4.Is user aware of product features, etc.
  • Page 50 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 2) Sensor failure check if the wiring is correct according to reconnect wiring diagram if sensor is fixed Relocate well Is sensor short-circuit Replace sensor or open-circuit? Is sensor resistance Replace sensor acceptable? Is DC voltage between...
  • Page 51 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 4) Communication error between indoor and outdoor units Confirm commumication failure according to the fault code list Confirm the fault indicator is communication failure Are communication wire Does indoor communication P, Q connected contrarily...
  • Page 52 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 6) Temperature cutoff protection confirm the malfunction according to the fault code list Does small relay coil Is outdoor four-way valve Relay is broken. of four-way valve have in good condition during Replace PCB...
  • Page 53 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 7) Pressure protection Confirm the fault according to the fault code list Does system have Are CN17 and CN18 Replace PCB pressure switch? in PCB cut off? Make them in short circuit Is actual pressure detected by...

  • Page 54: Electrical Data

    Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 11. Electric data 11.1 Wiring diagram CIRCUIT DIAGRAM OF INDOOR UNIT 0010578081 TRANSFORMER CN24 ROOM TEMP SENSOR T3.15A/250VAC CN25 PIPING TEMP SENSOR CN23 CONTROL PANEL CN22 CN11 CN12 CN13 CN10 ONE-OFF FUSE SWING MOTOR...
  • Page 55 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 11.2 Circuit diagram For indoor unit 892-1CC-12V 892-1CC-12V 892-1AC-12VDC CD110 4.7uf/50V CD110 4.7uf/50V CD110 4.7uf/50V RJ15 0.5W/10K RJ15 0.5W/10K...
  • Page 56 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 For outdoor unit of HPU-42CV03 sent IN4007 892-1AC-C 892-1AC-C 892-1AC-C 892-1CC-C...
  • Page 57 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03...
  • Page 58 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 For outdoor unit of HPU-42HV03 sent IN4007 892-1AC-C 892-1AC-C 892-1AC-C 892-1CC-C...
  • Page 59 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03...
  • Page 60 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 11.3 Printed diagram For indoor unit Port Function Fuse T3.15A 250VAC Central controller B2B-XH-R Live wire (L)-250 Neutral wire (N)-250 Primary side of transformer RTB-1.5-2P Second side of transformer B3B-XH-A Sensor B4B-XH-A CN10 Operation panel B4B-XH-A...
  • Page 61 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 For outdoor unit of HPU-42CV03 Port Function 3-phase L1-250 3-phase L1-250 3-phase L1-250 Neutral wire of three phase N-250 Communication between indoor and outdoor units -250 Second side of transformer B3B-XH High pressure switch B2B-VH Primary side of transformer RTB-1.5-2P...
  • Page 62 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 For outdoor unit of HPU-42HV03 Port Function 3-phase L1-250 3-phase L1-250 3-phase L1-250 Neutral wire of three phase N-250 Communication between indoor and outdoor units -250 Second side of transformer B3B-XH High pressure switch B2B-VH Outdoor ambient temp.
  • Page 63 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 11.4 Sensor characteristic Model Part code Name Characteristic R25=10KΩ±3%， 0010401922 indoor coil temp. sensor B25/50=3700K±3% R25=23KΩ±2.5%， HPU-42CV03(in) 001A3900159 indoor ambient temp. sensor B25/50=4200K±3% HPU-42HV03(in) R80=50KΩ±3%， 0010450398 discharging sensor B25/80=4450K±3% HPU-42CV03(out) R80=50KΩ±3%， 0010450398 discharging sensor B25/80=4450K±3%...
  • Page 64 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 R25=23KΩ±2.5% R80=50KΩ±3% B25/50=4200K±3% B25/80=4450K±3% T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) T(℃) Rnom(KΩ) -20℃ 281.34 23℃ 25.3 11600 933.4 127.3 -19℃ 263.56 24℃ 24.12 10860 886.4 122.1 -18℃ 247.04 25℃ 10170 841.9 117.2 -17℃...
  • Page 65 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 R25=5KΩ±1% B25/50=3450K±1% Rnom(KΩ) Rnom(KΩ) Rnom(KΩ) T(℃) T(℃) T(℃) -20℃ 47.12 10℃ 10.35 40℃ 2.633 45.17 9.837 2.536 -19℃ 11℃ 41℃ 43.24 9.351 2.432 -18℃ 12℃ 42℃ -17℃ 41.35 13℃ 8.892 43℃ 2.339 39.49 8.458 2.25...
  • Page 66 Commercial Air Conditioner Model: HPU-42CV03 HPU-42HV03 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

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