Cooper & Hunter CH-HP30MFNM Service Manual
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Cooper & Hunter CH-HP30MFNM Service Manual

Direct & circulating air source heat pump water heater technical
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Direct & Circulating Air Source
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Summary of Contents for Cooper & Hunter CH-HP30MFNM

  • Page 1 Direct & Circulating Air Source Heat Pump Water Heater Technical Service Manual Service Manual Air Conditioners Thank you for choosing Commercial Air Conditioners, please read this service manual carefully before operation and retain it for future reference.

  • Page 2: Table Of Contents

    CONTENTS PRODUCT...................... 2 1 Product List ........................ 2 2 Rule of naming......................2 3 Product characteristics....................3 4 Technical data table ....................4 5 Capacity correction chart ................... 5 6 Operating principle....................11 CONTROL....................13 1 Unit Control ......................13 2 Wired controller ....................... 16 3 Dial code operation instructions of water heater mainboard........
  • Page 3 Direct & Circulating Air Source Heat Pump Water Heater PRODUCT...

  • Page 4: Product

    Direct & Circulating Air Source Heat Pump Water Heater PRODUCT 1 Product List Hot Water Heating Unit Model Product Code Output Power Supply Refrigerant Outline Photo Capacity (kW) Volume (L/h) 380-415V ER01000080 R410A 50Hz HP30MFNM 380-415V ER01000090 R410A HP40MFNM 50Hz 380-415V ER01000100 1300...

  • Page 5: Product Characteristics

    Direct & Circulating Air Source Heat Pump Water Heater 3 Product characteristics The direct heating circulating air to water heat pump water heater uses an advanced waterway automatic- control system. After entering the unit, cold water is heated to 55°C, and directly enters the heat accumulation tank to be used by the user.

  • Page 6: Technical Data Table

    Direct & Circulating Air Source Heat Pump Water Heater 4 Technical data table CH-HP30MFNM CH-HP40MFNM CH-HP60MFNM Model Heating capacity Heating power input Heating current input 14.5 3.83 Rated power input 10.5 Rated current input 35.4 Nominal hot water output 1300 1.Set temperature for direct heating outlet water:...

  • Page 7: Capacity Correction Chart

    27.86 32.47 32.45 36.25 Capacity(kW) 9.23 15.02 21.79 27.41 31.85 32.17 36.01 6.11 7.35 7.18 7.61 7.96 7.39 7.74 CH-HP30MFNM Heating Power 6.53 8.05 8.10 8.41 8.60 8.10 8.41 Input(kW) 6.85 8.42 9.04 9.31 9.30 8.78 9.07 1.59 2.12 3.06 3.69...
  • Page 8 23.39 31.57 34.47 33.32 41.01 6.39 7.45 7.66 7.84 8.24 7.63 7.57 6.61 7.33 7.85 8.08 8.26 7.69 7.74 CH-HP30MFNM Heating Power Input(kW) 6.70 7.65 8.03 8.19 8.32 7.82 7.81 7.06 7.71 8.05 8.32 8.66 7.85 7.99 1.44 2.20 3.04 3.90...
  • Page 9 Water inlet temperature(°C) -7/-8 20/15 30/22 35/24 46/28 23.35 30.66 23.69 31.21 Heating Capacity(kW) 23.63 31.07 23.27 31.72 9.24 9.60 CH-HP30MFNM 9.55 9.86 Heating Power Input(kW) 9.63 10.05 9.78 10.05 2.53 3.19 2.48 3.17 performance(W/W) 2.45 3.09 2.38 3.16 /h,Outdoor ambient temperature(DB/WB°C) Model Water inlet temperature(°C)
  • Page 10 Direct & Circulating Air Source Heat Pump Water Heater Water outlet temperature 55°C,Outdoor ambient temperature(DB/WB°C) Model Water inlet temperature(°C) -7/-8 20/15 30/22 35/24 46/28 12.61 22.47 34.10 40.43 46.16 46.08 52.10 13.18 22.21 33.49 40.22 46.20 45.01 51.21 Heating Capacity(kW) 13.08 22.10 32.47...
  • Page 11 Direct & Circulating Air Source Heat Pump Water Heater /h,Outdoor ambient temperature(DB/WB°C) Model Water inlet temperature(°C) -7/-8 20/15 30/22 35/24 46/28 19.20 28.04 40.52 52.53 61.92 60.96 64.68 Heating 19.23 27.87 40.23 51.78 61.00 60.44 64.44 Capacity(kW) 19.17 27.71 39.69 50.85 59.54 59.30...
  • Page 12 Direct & Circulating Air Source Heat Pump Water Heater Water outlet temperature 60°C,Outdoor ambient temperature(DB/WB°C) Model Water inlet temperature(°C) -7/-8 20/15 30/22 35/24 46/28 28.83 48.19 59.62 67.72 67.25 28.72 48.21 59.41 67.56 67.22 Heating Capacity(kW) 28.54 48.23 59.23 67.51 67.17 28.46 47.94...

  • Page 13: Operating Principle

    Direct & Circulating Air Source Heat Pump Water Heater 6 Operating principle Air-source heat pump water heater is based on Inverse Kano circulation principle, driven by a small amount of electrical power, with refrigerant as carrier, continuously absorbs low grade heat (-26~46°C) in the air, and transforms them into usable high grade heat, which is then released into water so as to generate and secure domestic hot water (with default temperature of 55°C, and 70°C at most), and finally transports hot water through hot water pipes to users.
  • Page 14 Direct & Circulating Air Source Heat Pump Water Heater CONTROL...

  • Page 15: Control

    Direct & Circulating Air Source Heat Pump Water Heater CONTROL 1 Unit Control 1.1 Overall Control Thought of Unit 1.1.1 Schematic Diagram of Unit Control Output control 4-way Electronic Compressor Water pump valve expansion valve Power supply 485 communication Output control Retur nWate r Outle...
  • Page 16 Direct & Circulating Air Source Heat Pump Water Heater 1.2 Overview of Key Control Logics 1) Compressor control (1) The tank water level is at a low level. a. In the water heating status, the compressor shuts down when the water tank reaches the high water level.
  • Page 17 Direct & Circulating Air Source Heat Pump Water Heater 1.3 Unit Operating Flowchart Power on the main board Start the unit Judge the fault Handle the fault Each load starts successively Operate automatically accordingto water level of the water tank Judge the fault Handle the fault Shut down and...

  • Page 18: Wired Controller

    Direct & Circulating Air Source Heat Pump Water Heater 2 Wired controller 2.1 Outline and installation size 2.1.1 Outline size 22.5 Outlet Wat er Circulating Wat er Retur nWat er E-heater Inquiry Temp Temp Timer Timer/Temp Lev e l Res e t Exi t Clock Lev e l...
  • Page 19 Direct & Circulating Air Source Heat Pump Water Heater 2.1.3 Connection of wired controller 2.1.4 Disassembly and assembly of wired controller Tools are necessary to disassemble the wired controller. Manual disassembly can break the wired controller buckle. Stretch straight screwdriver into the slot at the upper side of the wired controller, rotate the screwdriver and the buckle will uncouple.
  • Page 20 Direct & Circulating Air Source Heat Pump Water Heater 2.2 Operations of wired controller 2.2.1Panel and button instructions Wired controller is as shown below. All items are displayed on the LED for illustration. tlet W ater urnW ater Circu lati n gW ater E-he a ter Inquiry Te mp...
  • Page 21 Direct & Circulating Air Source Heat Pump Water Heater 2.2.2 Selection of control patterns This wired controller can control 16 main units at most. This wired controller has two types of control patterns: Single unit control Multiple unit control Wired controller connects to the main board correctly, power is connected Wired controller...
  • Page 22 Direct & Circulating Air Source Heat Pump Water Heater 3) When the unit is under multiple unit control, the related parameters displayed (such as terminal temperature / user side temperature, malfunction code, timing status and so on) are information for No.1 unit. 4) When corresponding modules are under ON status, corresponding unit numbers are displayed blinkingly.
  • Page 23 Direct & Circulating Air Source Heat Pump Water Heater tlet Wa ter turnWa ter Circul atin gWa ter E-heat er Inqu iry Temp Temp Timer Timer/T emp/ Le vel Re set Exit Clock Le vel Diagn os e Sing le/M ulti Lo ck Fig.2 3) Cyclic water temperature setting (Fig.3)
  • Page 24 Direct & Circulating Air Source Heat Pump Water Heater 5) Parameter checking (Fig.5) When the wired controller displays the main interface, press “Inquiry” button to enter inquiry interface. After inquiry. As shown in Fig.5, the code 02 indicates that the outlet water temperature is 38°C. ur n Wa ter tlet Wa ter CirculatingWa ter...
  • Page 25 Direct & Circulating Air Source Heat Pump Water Heater letWater Ci r culatingWater Return Water E-he a ter Inqu i ry Temp Temp Timer Ti m er/Temp/ Level Reset Ex it Clock Level Diag no se Single/Mul ti Lo ck Fig.7 8) User parameter setting (Fig.8) When the wired controller displays the main interface, press “Outlet Water Temp”...
  • Page 26 Direct & Circulating Air Source Heat Pump Water Heater 9) Water level setting (Fig.9) When the wired controller displays the main interface, press “Level” button to enter water level setting water level modes that can be selected. When a certain water level mode is selected, the corresponding water level will be displayed blinkingly.
  • Page 27 Direct & Circulating Air Source Heat Pump Water Heater 11) Backwater timing setting (Fig.11) When the wired controller displays the main interface, press “Return Water Timer” button for 5 seconds to enter backwater timing setting interface. ur n Wa ter tlet Wa ter Circulat ingWa ter Temp...
  • Page 28 Direct & Circulating Air Source Heat Pump Water Heater Home page Select the time period Set the time period to be ON or OF Timer on hour setting Timer on hour setting Timer off minute setting Timer off minute setting Timing period Timer on hour Timer on minute...
  • Page 29 Direct & Circulating Air Source Heat Pump Water Heater 13) Timer setting/temperature setting/water level setting (Fig.13) When the wired controller displays the main interface, press “Timer/temperature setting/water level setting” button for 5 seconds to enter timer setting/temperature setting/water level setting interface. tlet W ater urnW ater Circula tingW ater...
  • Page 30 Direct & Circulating Air Source Heat Pump Water Heater Process drawing of timer / temperature setting / water level setting: Home Page Select the timer period Set the timer period to be ON or OF Timer On Timer Off Select Timer On or Timer Off Timer on hour setting Timer off hour setting...
  • Page 31 Direct & Circulating Air Source Heat Pump Water Heater tletWater Return Water Circ ulating Water E-heater Inq uiry Temp Timer Temp Timer/Temp/ Ex it Clock Level Level Reset Diagno se Sing le/Mu lti Lo ck Fig.14 Water heater controller malfunction code Code Malfunction cause Malfunction signal source...

  • Page 32: Dial Code Operation Instructions Of Water Heater Mainboard

    Direct & Circulating Air Source Heat Pump Water Heater 16) Historical malfunction checking (Fig.15) When the wired controller displays the main interface, press “Diagnose” button for 5 seconds to enter historical malfunction inquiry interface, and then press “Diagnose” button to shift the historical malfunctions for units that needs inquiry (direct heating icon means direct heating type and cyclic icon means cyclic type).
  • Page 33 Direct & Circulating Air Source Heat Pump Water Heater Unit address code look-up table: (black is lever) Dial Code Position Address Remarks When the lever is dialed near to ON, the status is ON, and the opposite direction is OFF. Address code diagram:...
  • Page 34 Direct & Circulating Air Source Heat Pump Water Heater MAINTENANCE...

  • Page 35: Maintenance

    Direct & Circulating Air Source Heat Pump Water Heater MAINTENANCE Regular cleaning and maintenance must be conducted in order to guarantee unit’s service life and reliable operation and also lower the malfunction rate. 2 Regular Maintenance Items 1) Cleaning of water system Water system may generate scale deposit after a long-time operation, therefore, it is necessary to clean the water system regularly.

  • Page 36: Winter Anti-Freezing Solution

    Drain off the water inside the tube. After water is all drained out from the water. Make sure water is all drained away. 1) Figure for water drainage of CH-HP30MFNM and CH-HP40MFNM: drainage valve 2) Figure for water drainage of CH-HP60MFNM:...
  • Page 37 Direct & Circulating Air Source Heat Pump Water Heater INSTALLATION...

  • Page 38: Installation

    Direct & Circulating Air Source Heat Pump Water Heater INSTALLATION 1 List of Unit errors Error Signal Error Code Error Name Control Logic Source Water pump overload protection is a function used by the water pump to protect itself. It protects the water pump from being impaired when the load is too large and Water pump Water pump the water pump may operate in an overloading status.
  • Page 39 Direct & Circulating Air Source Heat Pump Water Heater Fault Signal Fault Code Fault Name Control Logic Source The discharge temperature sensor is used to prevent unit failure or damage arising from oil decomposition and carbonization of the compressor when the system Discharge Discharge operates at an abnormal state and the discharge temperature is too high.

  • Page 40: Typical Troubleshooting

    Direct & Circulating Air Source Heat Pump Water Heater 2 Typical Troubleshooting 2.1 System Troubleshooting 1) High pressure protection High pressure protection Adjust the line and Wire connection error or eliminate the line interference. Check and interference. replace the line. Replace the Check whether the pressure switch is damaged.
  • Page 41 Direct & Circulating Air Source Heat Pump Water Heater 2) Low pressure protection Low pressure protection Use a pressure gauge to Check whether short circuit Wire connection error or line Check whether the pressure occurs to the main board protection measure whether the pressure is low interference;...
  • Page 42 Direct & Circulating Air Source Heat Pump Water Heater 3) High discharge temperature protection High discharge temp. protection Replace the discharge Measure whether the discharge temp. Measure whether the sensor temperature sensor. reaches 130°C resistance is correct. The main board fails. Replace the main board Check whether the electronic Replace the expansion valve coil or the valve.
  • Page 43 Direct & Circulating Air Source Heat Pump Water Heater error 4) Water level switch of the unit Water level switch error Replace the 2-digit 2-digit water water level switch level switch fails Check which float ball The switch signal cable falls off. of liquid level fails.
  • Page 44 Direct & Circulating Air Source Heat Pump Water Heater Waterf low switch error Disconnect power. Turn The switch signal cable falls off. power on after cable is reconnected. Adjust the butt piece The butt piece is clamped angle and size. between pipe walls.
  • Page 45 Direct & Circulating Air Source Heat Pump Water Heater 8) Temperature sensor error Temperature sensor error Check whether the temperature Confirm the positions sensor plug and the socket on of the plug and socket. the main board are connected correctly. Remove the sensor.
  • Page 46 Direct & Circulating Air Source Heat Pump Water Heater 2.3 Other Common Faults and Causes Symptom Cause Solution A. The power supply fails. connected. The compressor does not B. The connection line gets loose. start up. C. The relay or fuse fails. D.

  • Page 47: Power Distribution Of Unit

    Direct & Circulating Air Source Heat Pump Water Heater 3 Power Distribution of Unit 3.1 Logic of power distribution 380V 3 N~50 Hz power terminal plate Phase reverse protector Water pump Mini circuit breaker contactor contactor Main board The terminal plate is Compressor used for the pressure switch, Wired controller...
  • Page 48 Providing over-current AC protector protection for compressor Providing phase loss and Phase reverse protector phase reverse protection 3.3 Circuit Diagrams of Units 1) Circuit diagram of CH-HP30MFNM Power A(11) C(14) A P 1 sketch of electric parts K M 3...
  • Page 49 Direct & Circulating Air Source Heat Pump Water Heater 2) Circuit diagram of CH-HP40MFNM Power A(11) C(14) sketch of electric parts A P 1 KM1-A2 K M 3 K M 1 K M 2 AP1-X1 A P 2 F A 1 X T 1 X T 3 X T 2...

  • Page 50: Removal/Installation Of Unit Parts

    Direct & Circulating Air Source Heat Pump Water Heater 4 Removal/Installation of Unit Parts 4.1 Key Parts Picture Name Function It uses power as driving force, compresses refrigerant into high temperature and Compressor high pressure gas, and makes it overcome resistance in the cooling system to The gas-liquid separator is used to separate gas from liquid of refrigerant and Gas-liquid separator prevent liquid impact because the compressor takes in liquid refrigerant.
  • Page 51 Direct & Circulating Air Source Heat Pump Water Heater 4.2 Removing/Installation of Key Parts 1) CH-HP30MFNM Removal/ Installation of the compressor Remarks: Before removing the compressor, make sure there is no refrigerant in unit’s pipeline system and power supply is cut off.
  • Page 52 Direct & Circulating Air Source Heat Pump Water Heater Removal/ Installation of 4-way valve Remarks: Before replacing, cut off the power and reclaim refrigerant. Step Figure Operation Instructions and electric box. 1. Remove the front valve, please remember the panel and electric box. installed direction of the valve.
  • Page 53 Direct & Circulating Air Source Heat Pump Water Heater Remarks: Check the refrigerant system and each circuit. After making sure that it is necessary to Step Figure Operation Instructions Electronic expansion valve Solenoid valve Liquid spread EXV 1.Retrieve refrigerant. 2.Remove the electronic it with wet cloth during welding.
  • Page 54 Direct & Circulating Air Source Heat Pump Water Heater a spanner or other tools. tube condenser and then remove the tube in tube condenser. condenser from the base plate. condenser on the base plate. 3.Replace with a new tube in tube condenser and then secure the nuts.
  • Page 55 Direct & Circulating Air Source Heat Pump Water Heater weld the pipes quickly to prevent pipeline from overburning. integrity of compressor and for 3.Disconnect compressore furture disassembly analysis, do from its connection pipe by not damage the compressor. nuts of compressor and be careful not to damage remove the compressor.
  • Page 56 Direct & Circulating Air Source Heat Pump Water Heater Removal/ Installation of 4-way valve Remarks: Before replacing, cut off the power and reclaim refrigerant. Step Figure Operation Instructions 1.Remove the front panel and electric box according to valve, please remember the 4-way valve the removal and installation installed direction of the valve.
  • Page 57 Direct & Circulating Air Source Heat Pump Water Heater Removal/ Installation of gas-liquid separator Remarks: Reclaim refrigerant properly. Prepare related devices and tools. Make sure power is off. Step Figure Operation Instructions 1.Remove the front panel and electric box according to the previous instructions.
  • Page 58 Direct & Circulating Air Source Heat Pump Water Heater Removal/ Installation of electronic expansion valve Remarks: Check the refrigerant system and each circuit. After making sure that it is necessary to replace electronic expansion valve, disconnect power and reclaim the refrigerant. Step Figure Operation Instructions...
  • Page 59 Direct & Circulating Air Source Heat Pump Water Heater Remarks: Check the refrigerant system and each circuit. After making sure that it is necessary Step Figure Operation Instructions 1.Retrieve refrigerant. Filter it with wet cloth during welding. Filter the soldering gun. that is of the same model.
  • Page 60 Direct & Circulating Air Source Heat Pump Water Heater of tube in tube condenser a spanner or other tools. and then remove the tube in tube condenser. condenser from the base plate. 3.Replace with a new tube condenser on the base plate. in tube condenser and then secure the nuts.Weld other pipes properly.
  • Page 61 Direct & Circulating Air Source Heat Pump Water Heater weld the pipes quickly to prevent pipeline from overburning. 3.Disconnect compressor from its connection pipes. integrity of compressor and for furture disassembly analysis, do not damage the compressor. be careful not to damage compressor’s rubber grommet.
  • Page 62 Direct & Circulating Air Source Heat Pump Water Heater valve should be the same as the replaced one. In special cases 2.Clean the system where same model cannot be accordingly. Replace the guaranteed, please ask professional 4-way valve witha same 4-way valve model.
  • Page 63 Direct & Circulating Air Source Heat Pump Water Heater 4.Retain system degree reaches -1.0bar. pressure, vacuumize and recharge refrigerant in. should accord with requirements on unit’s nameplate. Removal/ Installation of electronic expansion valve Remarks: Check the refrigerant system and each circuit. After making sure that it is necessary to replace electronic expansion valve, disconnect power and reclaim the refrigerant.
  • Page 64 Direct & Circulating Air Source Heat Pump Water Heater Remarks: Check the refrigerant system and each circuit. After making sure that it is necessary Step Figure Operation Instructions filter 1.Retrieve refrigerant. filter it with wet cloth during welding. the soldering gun. filter that is of the same model.
  • Page 65 Direct & Circulating Air Source Heat Pump Water Heater Removal/ Installation of tube in tube condenser Remarks: Check the refrigerant system and each circuit. After making sure that it is necessary to replace the tube in tube condenser, disconnect power and reclaim the refrigerant. Step Figure Operation Instructions...

  • Page 66: Common Maintenance Operations

    Direct & Circulating Air Source Heat Pump Water Heater 5 Common Maintenance Operations 5.1 System Leak Check Usually the system should be checked for leakage with soapy water. Respectively apply the soapy water to possible leak points (welding point, valve core and process joint) and any buble going out indicates the leakage and touch-up or repair is required.

  • Page 67: Unit Explosion View And Parts List

    Direct & Circulating Air Source Heat Pump Water Heater 6 Unit Explosion View and Parts List 1) Model: CH-HP30MFNM Explosion view:...
  • Page 68 Direct & Circulating Air Source Heat Pump Water Heater Parts List of CH-HP30MFNM for ER01000080: Item Code Quantity Rear Grill 01574100012 Coping 0126423001 Diversion Circle 1047410001 Axial Flow Fan Sub-Assy 10338702 Fan Motor 15703202 Evaporator Assy 01022800017 Rear Grill 0157601301P...
  • Page 69 Direct & Circulating Air Source Heat Pump Water Heater 2) Model: CH-HP40MFNM Explosion view:...
  • Page 70 Direct & Circulating Air Source Heat Pump Water Heater Parts List of CH-HP40MFNM for ER01000090: Item Code Quantity Rear Grill 01574100012P Coping 01264100030P01 Diversion Circle 1047410001 Axial Flow Fan Sub-Assy 10338702 Fan Motor 15703202 Right Side Plate 01314713P01 Electronic hot water valve 07302801 Electromagnetic water valve 07332800024...
  • Page 71 Direct & Circulating Air Source Heat Pump Water Heater 3) Model: CH-HP60MFNM Explosion view:...
  • Page 72 Direct & Circulating Air Source Heat Pump Water Heater Parts List of CH-HP60MFNM for ER01000100: Item Code Quantity Rear Grill 01574100013P Coping 01264100006P01 Diversion Circle 1047410000201 Axial Flow Fan Sub-Assy 15402800011 Fan Motor 15703202 Pressure Protect Switch 4602001580 Magnet Coil 430004009 4-way Valve 43000412...
  • Page 73 Designed by Cooper&Hunter International Corporation, Oregon, USA www.cooperandhunter.com E-mail: info@cooperandhunter.com...

This manual is also suitable for:

Ch-hp40mfnmCh-hp60mfnmEr01000080Er01000090Er01000100

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