Gree GRS-2.4/D270ANbA-K Service Manual
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Gree GRS-2.4/D270ANbA-K Service Manual

Air source heat pump water heater
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AIR SOURCE HEAT PUMP WATER HEATER
Capacity: 1.5~2.4kW
Rated Frequency: 50Hz
Operation Range : -7℃~45℃

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Summary of Contents for Gree GRS-2.4/D270ANbA-K

  • Page 1 AIR SOURCE HEAT PUMP WATER HEATER Capacity: 1.5~2.4kW Rated Frequency: 50Hz Operation Range : -7℃~45℃...

  • Page 2: Table Of Contents

    Contents PRODUCT ................................2 1 MODELS LIST ................................2 2 NOMENCLATURE ..............................3 3 FUNCTION ................................3 4 PRODUCT PARAMETERS ............................. 4 ..............................7 ORKING RINCIPLE ............................8 PTIONAL CCESSORIES CONTROL ................................10 ................................10 ONTROL ..............................11 IRED ONTROLLER ..............................
  • Page 3 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL PRODUCT...

  • Page 4: Product

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL PRODUCT 1 MODELS LIST Product Heating capacity Product type Model Outline diagram Code 2400+1500 GRS-2.4/D270ANbA-K ER02100050 (electric heating) GRS-1.5/D150ANbA-K ER02100070 1500+1500 GRS-1.5/D200ANbA-K ER02100080 (electric heating) Integral type GRS-1.5/TD150ANbA-K ER02100100 1500+1500 GRS-1.5/TD200ANbA-K...

  • Page 5: Nomenclature

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 2 NOMENCLATURE 10 11 Description Options Product code GRS—heat pump water heater Heating capacity code Nominal heating capacity (Unit: kW) Compressor system Null for single compressor; S—two compressors P— inverter; Pd—DC inverter; M—modular for fixed speed; PM—AC Functions 1 inverter modular;...

  • Page 6: Product Parameters

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 4 PRODUCT PARAMETERS 4.1 Product Parameters Model GRS-2.4/D270ANbA-K Rated Heating Capacity 2400 Rated Input Power 3.50 Capacity Load Profile 2.61 Energy Efficiency Class Water Heating Energy Efficiency 105% Annual electricity consumption...
  • Page 7 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Model GRS-1.5/D150ANbA-K GRS-1.5/D200ANbA-K Rated Heating Capacity 1500 1500 Rated Input Power 3.50 3.50 Capacity Load Profile (**) 2.47 2.47 (**) Energy Efficiency Class (**) Water Heating Energy Efficiency 103.9% 103.9% Annual electricity consumption...
  • Page 8 Under Rapid function, electric heater helps to heating water. ⑤ Please always see the nameplate for the exact data as this table is subject to change. 4.2 Work Temperature Range Models GRS-1.5/D150ANbA-K GRS-1.5/TD150ANbA-K GRS-2.4/D270ANbA-K GRS-1.5/D200ANbA-K GRS-1.5/TD200ANbA-K Heating -7~45° C 0~45° C 0~45° C Note: The above value range indicates the outdoor ambient temperate range for normal operation of the unit.

  • Page 9: Working Principle

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 5 Working Principle 5.1 Brief Introduction to Working Principle As the refrigerant has different phase-transition temperature under varied pressure, it enables the heat pump to transfer heat of low-temperature heat source to the high-temperature heat source. The air...

  • Page 10: Optional Accessories

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 6 Optional Accessories The Gree air source water heater unit supports the following accessories: Item Model/Coding Remark Intelligent preheat water return device HS-01 (transient heat up module) Self-regulation heating belt 76612816...
  • Page 11 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL CONTROL...

  • Page 12: Control

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL CONTROL 1 Unit Control 1.1 Overall Control Logic (1) High pressure switch When the detected voltage exceeds the preset value, a fault will be displayed and the unit will stop or not start.

  • Page 13: Wired Controller

    In the Off state, if water temperature in the water tank detected by the system based on the ambient temperature is too low, the unit starts the freeze-proofing function immediately. 2 Wired Controller (1) Controller for GRS-2.4/D270ANbA-K: i-know button Timer button...
  • Page 14 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Display of Common Operation Modes: Display of defrost, antifreeze running, and HOTWATER, SAVE, PRESET and e-heater running (or display of the Special NIGHT mode. E-HEATER Mode). Display of hot water volume (this function is Display of RAPID and i-know function.

  • Page 15: Query Parameters

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Display of Common Operation Modes: HOTWATER, SAVE, PRESET and Display of Keypad Lock function. NIGHT mode. Display of actual water temperature, temperature setpoint, error codes, and Display of defrost running running parameters.

  • Page 16: Operation Instructions

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 4 Operation Instructions 4.1 On/Off Setting The unit will be started or stopped by pressing the ―On/Off ‖ button. Note: After energization and under normal communication, the LCD will display the water temperature, time, and hot water volume (for models with dual temperature sensor) under both On and Off states of the unit.
  • Page 17 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL aftersales service immediately. The E-HEATER mode is shown in the following figure. In the E-HEATER mode, users can press the MODE button to switch to the HOTWATER mode. Note that the E-HEATER mode will be cancelled automatically and the HOTWATER mode will be started upon restart of the water heater in the case of blackout.
  • Page 18 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 4.5.2 Timer Setting Timer setting: Under the HOTWATER or SAVE mode or under the Off state, press the TIMER button to enter the timer setting interface. The TIMER and ON icons are on and the hour value blinks.
  • Page 19 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL circularly in the flowing sequence: PRESET 1 – PRESET 2 – PRESET 3 – PRESET 1. Preset time setting: Press the TIMER button to select PRESET 1. Then the PRESET 1 icon is on and the hour value blinks.
  • Page 20 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL PRESET 1 or Press ▲ or ▼ to select Press the PRESET 1 Main interface PRESET 3 TIMER button. blinks. PRESET X blinks. The minute The hour value value of Press the...
  • Page 21 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL blinks. Then users can press ▲ or ▼ to start or cancel this function. If no operation is performed within 5s, it will be regarded that this function is not required. If this function is started, the function icon is displayed without blinking.
  • Page 22 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL sterilization, the preset circular sterilization function still works.) OFF reminder for sterilization failure: If the OFF icon is displayed at the clock position after the STERILIZATION function is started, sterilization fails and the water temperature required for sterilization cannot be reached. The OFF reminder can be canceled when any button is pressed.
  • Page 23 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL During this period, the following operations can be performed: Press ▲ or ▼ to start or cancel the VACATION function. After this function is started, the VACATION icon will be displayed without blinking and the water heater runs based on the preset number of vacation days;...
  • Page 24 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL configurable parameter codes and values. Press ▲ or ▼ to select P5 and press the MODE button. Then item value 00 or 01 blinks under the parameter code P5. Press ▲ or ▼ to select the item value and press the MODE button to confirm setting (00: ℃...
  • Page 25 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL INSTALLATION...

  • Page 26: Installation

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL INSTALLATION 1 Engineering Installation Flowchart Design submission Materials procurement Review the installation position onsite Install the unit Connect the power cable or control circuit Check engineering installation Exhaust air in water tank...

  • Page 27: Preparations

    2.1.2 Importance of Engineering Installation The installation process of a Gree air source water heater involves installation of various parts, such as that of the unit and water tank, water pipe or copper pipe between the unit and water tank, pipes between the water tank and indoor cool/hot water pipes, wired controller, power cable, and control circuit.
  • Page 28 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Installation Problem Adverse Effect City water is unavailable or the water The unit fails to work and complaints are generated due pressure is too low or too high while no to unavailability of hot water.
  • Page 29 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Items to be checked during drawing review: Item Check Result The unit is provided with a condensate water drainage pipe. The unit installation position meets space requirements for heat exchange and maintenance.

  • Page 30: Installation Of The Unit Of Water Heater

    0℃. If the ambient air temperature falls lower than 0℃, the condensate water drainage may be freezing. (3) If it needs to install and move the air source water heater, please contact with Gree appointed local maintenance center. If the air source water heater is installed by unappointed unit, Gree won’t take the responsibilities for the malfunction and other problems due to the installation.
  • Page 31 If the product is installed at below places, it may cause malfunction for the air source water heater. If it’s unavoidable, please contact local Gree appointed maintenance center to purchase special models. (1) There are thermal sources, steam, flammable gas and explosive or volatile substances.
  • Page 32 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 3.4 Installation space requirement and installation drawing 3.4.1 Main size Figure 3-1 Sketch map for main size of GRS-2.4/D270ANbA-K Model GRS-2.4/D270ANbA-K A (mm) 1958 B (mm) C (mm) 235.5 D (mm)
  • Page 33 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Figure 3-2 Sketch map for main size of GRS-1.5/D150ANbA-K, GRS-1.5/D200ANbA-K Model GRS-1.5/D150ANbA-K GRS-1.5/D200ANbA-K Parameter Φ540 Φ540 D(mm) Φ591 Φ591 D1(mm) H(mm) 1685 1935 G(mm) 1167 1417 E(mm) F(mm) 1217...
  • Page 34 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Figure 3-3 Sketch map for main size of GRS-1.5/TD150ANbA-K, GRS-1.5/TD200ANbA-K Model GRS-1.5/TD150ANbA-K GRS-1.5/TD200ANbA-K Parameter Φ540 Φ540 A(mm) B(mm) 1760 2030 C(mm) 1206 1476 D(mm) E(mm) 1032 1302 3.4.2 Installation requirement (1) Do not point the air outlet of water heater at the upwind direction.
  • Page 35 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL to the drawing tightly and then lead to drainage hose to proper place for discharge. 3.5 Water pipe connection (1) Pipeline preparation Adopt the special pipe for the hot water exit pipe of water heater. S2.5 series PPR pipe with the external diameter of dn20 are suggested.
  • Page 36 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL water which is resulted from improper connection of water pipe, water tank and safety valve shall not be installed inside the room or balcony which is without discharge floor drain. （a）Installation method 1 （b）Installation method 2...
  • Page 37 Don't use the accessory of any third party and replace the accessory by yourself, any losses thereof for normal operation and usage of heat pump water heater result from personal injury and improper installation, Gree shall not be liable.
  • Page 38 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 3.6 Installation sketch map Figure 3-5 Installation sketch map of GRS-2.4/D270ANbA-K Figure 3-6 Installation sketch map of GRS-1.5/D150ANbA-K; GRS-1.5/D200ANbA-K...
  • Page 39 AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Figure 3-7 Installation sketch map of GRS-1.5/TD150ANbA-K; GRS-1.5/TD200ANbA-K 3.7 Installation Instruction of Wired Controller (*GRS-2.4/D270ANbA-K) (1) Fig. A is the standard installation way of wired controller. The wired controller is installed on the unit before ex-factory;...
  • Page 40 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL ③ Remove the 6 fixing screws on the front outer case subassembly; ④ Remove the front outer case subassembly; ⑤ Remove the 3 fixing screws of the gland of wired controller ;...
  • Page 41 Figure 3-8 Sketch map for Installation Instruction of Wired Controller 3.8 Thermal insulation for air outlet to prevent condensate water (*GRS-2.4/D270ANbA-K) (1) When installing the unit with air duct, please conduct thermal insulation for air outlet and air duct to prevent condensate water;...

  • Page 42: Pipe Insulation

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL (2) When installing the unit without air duct, please install the equipped thermal insulating foam at the air outlet to prevent condensate water at air outlet. See below Figure 4 Pipe Insulation 4.1 Thermal Insulation Measures for Water Pipes...
  • Page 43 5.2.2 Selection of Power Cable Diameter and Air Circuit Breaker Table 5-1 Minimum Cross-sectional Area (mm Capacity of the Air Model Power Supply Circuit Breaker Live Line Neutral Line Ground Line GRS-2.4/D270ANbA-K GRS-1.5/D150ANbA-K GRS-1.5/D200ANbA-K 220-240V~ 50Hz GRS-1.5/TD150ANbA-K GRS-1.5/TD200ANbA-K...
  • Page 44 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 5.3 Circuit Diagram (1) The circuit diagram of GRS-2.4/D270ANbA-K unit is shown in the following figure:...
  • Page 45 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL (2) The circuit diagram of GRS-1.5/D150ANbA-K; GRS-1.5/D200ANbA-K unit is shown in the following figure:...

  • Page 46: Check For Acceptance After Installation

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL (3) The circuit diagram of GRS-1.5/TD150ANbA-K; GRS-1.5/TD200ANbA-K unit is shown in the following figure: 6 Check for Acceptance After Installation Check Item Check Result The distance between the coil unit and water tank is smaller than 10 m.
  • Page 47 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL COMMISSIONING and TRIAL RUN...

  • Page 48: Commissioning And Trial Run

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL COMMISSIONING and TRIAL RUN 1 Commissioning Flowchart Check before commissioning Outdoor unit Water tank Electric connection Start the unit for commissioning. Set unit parameters. Accept after commissioning. 2 Precautions on Safety...
  • Page 49 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 3.2 Document Preparation for Commissioning Running Parameters for Commissioning of Household Air Source Water Heaters Project name: Unit model: Commissioning performed by: Water tank model: Rated capacity of the outdoor Capacity of the...
  • Page 50 Minimum Cross-sectional Area (mm Capacity of the Air Model Power Supply Circuit Breaker Live Line Neutral Line Ground Line GRS-2.4/D270ANbA-K GRS-1.5/D150ANbA-K 220-240V ~ GRS-1.5/D200ANbA-K 50Hz GRS-1.5/TD150ANbA-K GRS-1.5/TD200ANbA-K Note: ① The power cable of the unit must be a copper-core cable. The work temperature must meet the related requirement.

  • Page 51: Commissioning And Trial Run

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 4 Commissioning and Trial Run 4.1 Precautions for Commissioning Before commissioning, ensure that the power supply model, possible usage range (pipe distance, indoor and outdoor high and low voltage difference, and power supply voltage), and installation space meet user requirements.
  • Page 52 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL (3) If the unit will not be used for a long period, power off the unit and drain the water in the water tank and pipe through the drain valve. Drain the water by following the steps below: Turn off the water inlet cut-off valve of the water tank.

  • Page 53: Check Before Acceptance

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 5 Check Before Acceptance Checklist for Commissioning of Household Air Source Water Heaters Check Item Pass The heat exchange space for unit installation meets the related requirement. A drainage ditch or outlet is available near the installation position to facilitate water drainage.

  • Page 54: Unit Function Setting

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Running Parameters for Commissioning of Household Air Source Water Heaters Project name: Unit model: Commissioning performed by: Water tank model: Capacity of Rated capacity of the outdoor the water Date unit (kW)
  • Page 55 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL MAINTENANCE...

  • Page 56: Maintenance

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL MAINTENANCE 1 Fault Code Symptom Fault Description The water heater stops and the wired controller displays E1. System high pressure protection. The water heater stops and the wired controller displays E4.

  • Page 57: Troubleshooting

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 2 Troubleshooting 2.1 E1 High Pressure Protection Fault code: Applicable mode: HOTWATER; SAVE; PRESET; NIGHT Fault judgment condition and method: E1 is displayed on the wired controller. The troubleshooting method is shown in the flowchart below.
  • Page 58 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 2.2 E4 Air Exhaust Protection Fault code: Applicable mode: HOTWATER; SAVE; PRESET; NIGHT Fault judgment condition and method: E4 is displayed on the wired controller. The troubleshooting method is shown in the flowchart below.
  • Page 59 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL E6 Communication fault Check whether the Re-connect the Communication cable is communication cable. correctly connected. Check whether the Replace the Communication cable is Communication cable. accessible. Check whether the wired Replace the wired Replace the wired controller is normal.

  • Page 60: Repair Of Key Components

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL thermo-bulb fault F3、F4、F6、Fd、FE、FL Check whether the thermo- Re-connect the bulb is correctly connected. thermo-bulb. Check whether the thermo- Replace the bulb resistance exists or thermo-bulb. whether the resistance is normal. Y for other options Replace the mainboard.
  • Page 61 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 3.2 Disassembly of Key Components 3.2.1 Disassembly of Key Components of the Outdoor Unit (1) Disassembly of Compressor Disassembly of Compressor Procedure Description ● Unscrew the power cable using a screwdriver.
  • Page 62 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL (2) Disassembly of Four-Way Valve Disassembly of Four-Way Valve Procedure Description ● Record direction of the four-way valve before disconnecting it as the direction for two systems of a dual-system unit may differ.
  • Page 63 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 3.2.2 Disassembly of Key Components of the Water Tank (1) Procedure for replacing the water tank temperature sensor 1) Screw off threading coil of the temperature sensor. 2) Remove the temperature sensor cover.

  • Page 64: Exploded View And Parts List

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 4 Exploded View and Parts List  Model: GRS-2.4/D270ANbA-K Exploded Views and spare parts list: GRS-2.4/D270ANbA-K Name of Part Product Code ER02100050 Part Code Quantity Top Cover 26909400058 Nozzle for Adding Freon...
  • Page 65 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Water tank bottom feet 26902848 Front Panel 26909400059 Gasket 70412804 Electric Box Assembly (Tank) 01392800141 Electric heater 32110000009 Thermostat 45048003 Gasket 7041280401 Magnesium rod Subassembly 0406280000202 Water Tray 26909400057 Cabinet (Front)
  • Page 66 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL  Model: GRS-1.5/D150ANbA-K、GRS-1.5/D200ANbA-K Exploded Views and spare parts list: GRS-1.5/D150ANbA-K GRS-1.5/D200ANbA-K Name of Part Product Code ER02100070 ER02100080 Part Code Part Code Quantity Front Grill 26902800031 26902800031 Cabinet 26902800025S 26902800025S Front Grill...
  • Page 67 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL GRS-1.5/D150ANbA-K GRS-1.5/D200ANbA-K Name of Part Product Code ER02100070 ER02100080 Part Code Part Code Quantity Chassis Sub-Assy 01192800008P 01192800008P Temperature Sensor 390000598 390000598 Temperature Sensor 3900020615G 3900020615G Temperature Sensor 390002073G 390002073G Temperature Sensor...
  • Page 68 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL  Model: GRS-1.5/TD150ANbA-K、GRS-1.5/TD200ANbA-K Exploded Views and spare parts list: GRS-1.5/TD150ANbA-K GRS-1.5/TD200ANbA-K Name of Part ER02100100 ER02100090 Product Code Part Code Part Code Quantity 26902800026 26902800026 Top cover Cabinet 26902800025S01 26902800025S01 Front Grill...
  • Page 69 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL GRS-1.5/TD150ANbA-K GRS-1.5/TD200ANbA-K Name of Part ER02100100 ER02100090 Product Code Part Code Part Code Quantity Drain Pipe 05230022 05230022 Drainage Pipe(Rubber) 05332800002 05332800002 Strainer 07412802 07412802 Relief Valve 07382801 07382801 Electric heater...
  • Page 70 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL UNIT MAINTENANCE...

  • Page 71: Unit Maintenance

    Gree authorized maintenance centers. The possible causes of this problem are as follows: The safety check valve is damaged; the water replenishment pressure is higher than the maximum working pressure (0.7MPa) of the water tank, which occurs generally when pressure...

  • Page 72: Maintenance Of The Unit

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL MPa. If a booster pump is used to replenish water, the water replenishment pressure may exceed 0.7 MPa. In this case, a pressure reduction valve needs to be added to the tap water replenishment pipe to reduce water replenishment pressure.

  • Page 73: Attachment: Mapping Table Of The Temperature Sensor Resistance And Temperature

    GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Attachment: Mapping Table of the Temperature Sensor Resistance and Temperature The following tables lists the mapping relationship between resistance of different temperature sensors and temperature. The resistance for different temperature can be queried during maintenance.
  • Page 74 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Resistance (kΩ) Resistance (kΩ) Temperature (° C) Temperature (° C) 28.51 0.952 27.18 0.925 25.92 0.898 24.73 0.873 23.6 0.848 22.53 0.825 21.51 0.802 20.54 0.779 19.63 0.758 18.75 0.737 17.93 0.717...
  • Page 75 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Resistance (kΩ) Resistance (kΩ) Temperature (° C) Temperature (° C) 4.986 0.33 4.802 0.322 4.625 0.314 4.456 0.307 4.294 0.299 4.139 0.292 3.99 0.286 3.848 0.279 3.711 0.273 3.579 0.266 3.454 0.261...
  • Page 76 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Resistance (kΩ) Resistance (kΩ) Temperature (° C) Temperature (° C) 129.9 2.265 2.194 116.5 2.125 110.3 2.059 104.6 1.996 99.13 1.934 1.875 89.17 1.818 84.61 1.763 80.31 1.71 76.24 1.658 72.41 1.609...
  • Page 77 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Resistance (kΩ) Resistance (kΩ) Temperature (° C) Temperature (° C) 18.32 0.7099 17.55 0.6915 16.8 0.6736 16.1 0.6563 15.43 0.6395 14.79 0.6232 14.18 0.6074 13.59 0.5921 13.04 0.5772 12.51 0.5627 0.5487 11.52...
  • Page 78 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Mapping between the temperature and resistance of 50 kΩ (upper and lower temperature sensors in the water tank and air exhaust temperature sensor) Resistance (kΩ) Resistance (kΩ) Temperature (° C) Temperature (° C) 911.56...
  • Page 79 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Resistance (kΩ) Resistance (kΩ) Temperature (° C) Temperature (° C) 107.96 3.4128 102.85 3.3147 98.006 3.22 93.42 3.1285 89.075 3.0401 84.956 2.9547 81.052 2.8721 77.349 2.7922 73.896 2.715 70.503 2.6404 67.338 2.5682...
  • Page 80 GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL Resistance (kΩ) Resistance (kΩ) Temperature (° C) Temperature (° C) 19.061 1.1969 18.34 1.1694 17.651 1.1476 16.99 1.1166 16.358 1.0913 15.753 1.0667 15.173 1.0429 14.618 1.0197 14.085 0.9971 13.575 0.9752 13.086 0.9538...
  • Page 81 JF00303641...

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Grs-1.5/d150anba-kGrs-1.5/td150anba-kGrs-1.5/td200anba-kGrs-1.5/d200anba-k

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