Gree GRS-1.5/D150ANbA-K Service Manual Download

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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)

26909400061

Display Board

30296000028

Electric Box Assembly

01392800167

Capacitor CBB61S

3301074704

Transformer

43118000001

Terminal Board

4201115404

Capacitor CBB65

3300008101

Terminal Board

42011147

Main Board

30222000026

Above data is subject to change without notice, please reference the SP in global service website.

Summary of Contents for GRS-1.5/D150ANbA-K

Page 1: ...AIR SOURCE HEAT PUMP WATER HEATER Capacity 1 5 2 4kW Rated Frequency 50Hz Operation Range 7 45 ...

Page 2: ...40 6 CHECK FOR ACCEPTANCE AFTER INSTALLATION 44 COMMISSIONING AND TRIAL RUN 46 1 COMMISSIONING FLOWCHART 46 2 PRECAUTIONS ON SAFETY 46 3 PREPARATIONS 46 4 COMMISSIONING AND TRIAL RUN 49 5 CHECK BEFORE ACCEPTANCE 51 6 UNIT FUNCTION SETTING 52 MAINTENANCE 54 1 FAULT CODE 54 2 TROUBLESHOOTING 55 3 REPAIR OF KEY COMPONENTS 58 4 EXPLODED VIEW AND PARTS LIST 62 UNIT MAINTENANCE 69 1 WATER REPLENISHMENT ...

Page 3: ...GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 1 PRODUCT ...

Page 4: ...pecifications of the air source water heater series product for static heat up The product standard is EN16147 2011 EU No 814 2013 EN 12102 2008 Conditions for testing heating capacity of the unit outdoor ambient temperature 20 C DB 15 C WB Initial ending water temperature in the water tank 15 C 55 C For units with a water tank equipped with an electrical heater that is the model of which includes...

Page 5: ...for rotundity F squareness 11 Inner tank number Null for one inner tank 2 two inner tank 12 Refrigerant Null for R22 R407c N R410A Na R134a Nb R417A Ne 13 Design Serial number A B C or A1 A2 B1 B2 14 Cycle function H cycle function Null for no cycle function 15 Power supply code M 380 415V 3PH 50Hz K 220V 240V 1PH 50Hz D 220V 240V 1PH 60Hz 3 FUNCTION No Name Function 1 Compressor Increases pressur...

Page 6: ...me R134a Charge kg 1 10 Outline Dimensions W x D x H mm 660 667 1958 Package Dimensions W x D x H mm 813 813 2100 Net Weight kg 114 Sound Power Level dB A 60 Operating Range C 7 45 Notes Value obtained with the following conditions Outdoor temperature 20 C DB 15 C WB Water tank temperature start end 15 C 55 C Value obtained with an air temperature of 7 C and a water inlet at 10 as per EN16147 2011...

Page 7: ...tection of Ingression ⅠPX4 ⅠPX4 Refrigerant Name R134a R134a Charge kg 0 8 0 8 Outline Dimensions W D H mm 591 591 1685 591 591 1935 Package Dimensions W D H mm 703 703 1765 703 703 2015 Gross Net Weight kg 88 0 73 5 95 5 79 0 Sound Power Level dB A 61 61 Operating Range C 0 45 0 45 Notes Value obtained with the following conditions Outdoor temperature 20 C DB 15 C WB Water tank temperature start ...

Page 8: ...110 Gross Net Weight kg 112 0 92 0 122 5 102 5 Sound Power Level dB A 62 62 Operating Range C 0 45 0 45 Notes Value obtained with the following conditions Outdoor temperature 20 C DB 15 C WB Water tank temperature start end 15 C 55 C Value obtained with an air temperature of 7 C and a water inlet at 10 as per EN16147 2011 EU No 814 2013 Value obtained indoor placement as per EN 12102 2008 EU No 81...

Page 9: ...o high temperature and high pressure gas After entering the condenser the water tank coil of a water heater in static heat up mode the gaseous refrigerant transfers its heat to water as its saturation temperature is higher than the water temperature and leaves the condenser after condensing into liquid The liquid refrigerant enters the throttling device generally the electronic expansion valve for...

Page 10: ...heater unit supports the following accessories Item Model Coding Remark Intelligent preheat water return device transient heat up module HS 01 Self regulation heating belt 76612816 Pressure stabilizing valve 07382812 Note If any of the preceding accessories is required contact with the local sales company ...

Page 11: ...GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 9 CONTROL ...

Page 12: ... fault detection and handling Once the temperature sensor for the ambient temperature air discharge air inhaling pipe temperature or water tank is open circuited or short circuited the corresponding fault code will be displayed and all loads will be cut off After the fault is rectified the unit automatically runs again 1 2 Key Control Logics 1 Control on compressor After power is connected start t...

Page 13: ...utdown status at low level 3 Control on defrosting When the compressor is initially powered on and started it determines the defrosting condition after running for the preset duration If the defrosting condition is met the system defrosts before running in hot water mode including freeze proofing operation of compressor After defrosting is over the compressor starts for heat up When the cumulative...

Page 14: ...ACATION and ONCE function the STERILIZE function may not work for models without an electrical heater 8 Display of operating standby 4 Display of Keypad Lock function 9 Display of actual water temperature temperature setpoint error codes and running parameters 5 Display of system time preset time timer setting and running parameters 10 Display of the sub controller This function is reserved 2 Cont...

Page 15: ...lay of RAPID and i know function 3 Query Parameters This function is provided for the debugging personnel to query running status of the unit After pressing and holding MODE button for 5s the parameter display area blinks 00 is displayed by default The and buttons can be pressed to switch the query item Query codes are described in the following table Query Code Query Parameter 00 00 by default 01...

Page 16: ...state if the LCD does not display the running mode as shown in the following figure 4 2 Common Modes Setting In the On state of the unit press the MODE button to switch the operation modes in the following sequence HOTWATER SAVE PRESET NIGHT The HOTWATER mode is shown in the following figure 4 3 Special Modes Setting If the heat pump of a water heater equipped with an electrical heater is faulty u...

Page 17: ...s The system time setting interface is displayed The clock icon is on and the hour value blinks Press or to adjust the hour value and press the TIMER button to confirm setting Then the minute value flickers Press or to adjust the minute value and press the TIMER button to confirm setting After system time setting is saved the main interface is displayed In the setting process if no button is press...

Page 18: ...inute value flickers Press or to adjust the minute value and press the TIMER button to confirm setting After the scheduled on off time setting is saved the main interface is displayed In the setting process if no button is pressed within 15s the main interface will be displayed and setting will not be saved Timer cancelling After the scheduled on off time is set press the TIMER button to cancel it...

Page 19: ... for setting PRESET 3 is the same as that for PRESET 2 After setting is saved the ON and OFF icons are not displayed in the main interface as these icons are available in the setting process In the time presetting process if no button is pressed within 15s the preset interface will switch to the main interface automatically and setting will not be saved If the time preset for PRESET 1 PRESET 2 and...

Page 20: ...starts to heat up water based on the preset time and ambient temperature and stops one hour after the preset time 4 6 Function Setting 4 6 1 i know In the on state press the i know button to select the i know function To cancel this function press the i know button again 4 6 2 RAPID In the on state press the RAPID button to select the RAPID function The electrical heater is started for heat up To ...

Page 21: ...he preset d and h value If this function is canceled the STERILIZE icon is not displayed If no operation is performed within 5s it will be regarded that this function is not required After this function is started and when sterilization is being performed the function icon blinks 2 Press the TIMER button to enter the sterilization parameter setting interface Press or to select the d value and then...

Page 22: ...erformed operations such as sterilize function resetting and day interval adjusting for sterilization will also cause recalculation of the day interval After the circular sterilization function is set the water heater can still precisely calculate the day interval for sterilization accumulatively and the circular sterilization function can still work in the case of short term power failure If the ...

Page 23: ...the number of vacation days is adjusted in the vacation function setting interface the number of vacation days will be recalculated accumulatively Even when the VACATION function is being performed operations such as vacation function resetting and vacation day adjusting will also cause recalculation of the number of vacation days After the VACATION function is set the water heater can still preci...

Page 24: ...be modified otherwise operation exception will be caused 4 8 Errors Display When some errors occur during operation the error codes will be displayed on the controller Meanwhile the unit is in the Off state and the controller supports only the on off and query functions If multiple errors occur to the water heater simultaneously the corresponding error codes will be displayed circularly If the con...

Page 25: ...GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 23 INSTALLATION ...

Page 26: ...N 1 Engineering Installation Flowchart Materials procurement Design submission Review the installation position onsite Install the unit Connect the power cable or control circuit Check engineering installation Exhaust air in water tank and water pipe Unit commissioning ...

Page 27: ...s abrasion Under a serious case the unit may fail to work and the compressor may get burned 2 Vacuum degree of the refrigerant pipe system of the coil unit is insufficient The heating effect declines Protection is frequently started and the unit cannot normally run Under a serious case key components such as the compressor may get damaged 3 Moisture or water enters the refrigerant system of the co...

Page 28: ...on must be prepared The installation position for the unit must meet requirements on weight bearing ventilation and maintenance 3 If no holes are reserved holes can be drilled when required Hole drilling on the spandrel girder or load bearing wall is prohibited 2 1 3 2 Collaboration with Decoration Engineering 1 Indoor pipes for cool water and hot wate must be laid in advance Interfaces for cool w...

Page 29: ...report must be provided for materials and devices used for installation 3 A fire proof inspection certificate must be provided for products with fire proof requirement and these products must comply with national regulations and mandatory standards 4 When environmental friendly materials are required by the user all materials shall meet national environment protection requirements and relevant cer...

Page 30: ...s chapter 3 Installation of the Unit of Water Heater 3 1 Important hint 1 The air source water heater must be installed by professional person according to national wiring regulation and this instruction manual 2 Although the heat pump can operate when the ambient temperature is above 7 the water heater can only be put indoors and must be installed at the places where the ambient temperature is ab...

Page 31: ...places 3 3 Selection for installation positions 1 Suggest to install the unit indoors But do not make the wind blowing to the living room 2 The noise and discharge air won t disturb neighbours animals or plants 3 Make sure the good ventilation for the water heater air inlet and air outlet of water heater can t be blocked 4 The installation position should bear the weight and vibration for the wate...

Page 32: ...WATER HEATER SERVICE MANUAL 30 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 984 C mm 235 5 D mm 620 ...

Page 33: ...R SERVICE MANUAL 31 Figure 3 2 Sketch map for main size of GRS 1 5 D150ANbA K GRS 1 5 D200ANbA K Model Parameter GRS 1 5 D150ANbA K GRS 1 5 D200ANbA K D mm Φ540 Φ540 D1 mm Φ591 Φ591 H mm 1685 1935 G mm 1167 1417 E mm 243 243 F mm 967 1217 ...

Page 34: ...treatment protection for the hot water pipeline to reduce heat loss 3 The distance between water heater and surrounding wall or other shelter objects can t be too small The installation space should satisfy the drawing requirement 4 If install a rain shed for protecting the water heater please make sure that it won t affect the heat radiation and absorption for the heat exchanger 5 The water heate...

Page 35: ...should be lower than the bottom part of water tank otherwise the water can t drained completely A cut off valve must be installed at the drainage pipeline and the cut off valve must be installed at the position where is convenient for the operation 4 Installation of Safety valve The safety vale indicates the direction to the water tank supplied with the unit shall be connected to the inlet of the ...

Page 36: ... 4 Safety valve installation diagram of water inlet pipe in water tank Material code Name Specification pressure Quantity 07382801 Safety valve G1 2 0 7Mpa 1 5 Installation of Antifreezing tracing belt If the water tank shall inevitably be installed in places with temperature below 0 to avoid the pipeline getting frozen due to bad insulation of water system pipeline antifreezing tracing belt for p...

Page 37: ...Stabilizing valve direction shall accord with the water tank direction shall be installed between safety valve and filter Notices To ensure water safety the PPR pipe length at the water inlet and outlet is determined as per the formula L 70 R2 wherein L indicate the pipe length and R indicates the inner diameter of the pipe unit cm The pipe should be insulated properly No metal pipe is allowed To ...

Page 38: ... SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 36 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: ...ontroller is installed on the unit before ex factory 2 Fig B is the detached installation way of wired controller Long communication wire shall be equipped to install the wired controller on the wall If this kind of installation way is adopted please contact the after sales installation personnel to select the communication cable with proper length Instructions for installing the wired controller ...

Page 40: ...roperly for future use Please change the original short communication cable with long communication wire which is led out from the cable crossing hole of unit Install decoration cover Tighten the fixing screw of decoration cover Install the front outer case subassembly Tighten the 6 fixing screws of front outer case subassembly Install the upper cover Tighten the fixing screw of upper cover Connec...

Page 41: ...tch 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: ...dth of the adhesive tape must be 5 cm or greater to ensure secure connection 5 Electric Installation 5 1 Precautions on Safety 1 This air source water heater is class Ⅰ appliance Ensure that wire layout is performed by professional personnel according to national wiring rules 2 Ensure that a switch for all pole disconnection is available for the fixed lines and is directly connected to wiring term...

Page 43: ...ces 8 If the installation conditions on site change consider using cables whose reduced capacity can still meet site requirements based on the specifications of the power cables and air circuit breakers provided by the vendor 9 If the power flexible wire is damaged it must be replaced by professional personnel of the vendor maintenance center of the vendor or relevant other department to avoid dan...

Page 44: ...GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 42 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 43 2 The circuit diagram of GRS 1 5 D150ANbA K GRS 1 5 D200ANbA K unit is shown in the following figure ...

Page 46: ...e water drainage pipe is installed for the outdoor unit 5 The water tank is securely and stably installed 6 The safety device is connected with a drainage hose to the floor drain or any other position as specified 7 Pressure of the inlet water is between 0 15 MPa and 0 7 MPa 8 A filter is equipped for the cool water inlet pipe 9 No water leakage or block occurs to the cool water and hot water pipe...

Page 47: ...GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 45 COMMISSIONING and TRIAL RUN ...

Page 48: ...oor and outdoor high and low voltage difference and power supply voltage and installation space meet user requirements After verifying that no exception exists upon commissioning introduce the operation and maintenance method to the customer according to the user manual In addition deliver the precautions and user manual to the customer for careful storage 3 Preparations 3 1 Tool Preparation for C...

Page 49: ...ion or support is solid and secure to ensure stable operation of the unit The unit must be installed in a horizontal manner without any tilt Total pipe length meets the requirement Cable diameter of the outdoor unit meet the unit s design requirement The circuit breaker and leakage circuit breaker meet the unit s design requirement The position for installing the water tank must have sufficient lo...

Page 50: ...st sunlight and rain 3 The communication cable of the wired controller is 50 mm or more away from the strong electricity cable 3 3 2 Matching of Power Supply and Circuit Breaker Model Power Supply Minimum Cross sectional Area mm2 Capacity of the Air Circuit Breaker Live Line Neutral Line Ground Line GRS 2 4 D270ANbA K 220 240V 50Hz 1 5 1 5 1 5 16 GRS 1 5 D150ANbA K 1 5 1 5 1 5 16 GRS 1 5 D200ANbA ...

Page 51: ...d on the user s side If water flows out continuously at the tap or shower head the water tank is full of water Then turn off the tap or shower head Check whether leakage exist in the water pipeline especially at joints When no leakage is found power on the unit 2 Unit power on After the unit is powered up the wired controller buzzes for once Check whether an error code is displayed on the wired co...

Page 52: ...g performed by Water tank model Rated capacity of the outdoor unit kW Capacity of the water tank Date Maximum drop between the outdoor unit and water tank m Length of system pipe Commissioning status Heat up Status Parameter Unit Before Startup 30 minutes Status parameters of the outdoor unit Outdoor ambient temperature C Power supply voltage V Air intake temperature C Air exhaust temperature C Pa...

Page 53: ...is solid Vibration reduction and water drainage meets the related requirement Water tank 1 The position for installing the water tank must have sufficient load bearing capacity 2 The drain outlet for water tank is near the drainage ditch or drainage hole 3 The safety check valve and drainage pipe are installed securely 4 The safety check valve and drainage pipe are placed in the drainage pipe for ...

Page 54: ...e icon is on and the hour value flickers Press or to adjust the hour value and press the TIMER button to confirm setting Then the minute value flicks Press or to adjust the minute value and press the TIMER button to confirm setting After system time setting is saved the main interface is displayed During the setting process if no button is pressed within 15s the main interface will be displayed an...

Page 55: ...GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 53 MAINTENANCE ...

Page 56: ...nd the wired controller displays F3 Outdoor ambient temperature sensor fault The water heater stops and the wired controller displays F4 Air exhaust temperature sensor fault The water heater stops and the wired controller displays F6 Pipe temperature sensor fault for outdoor heat exchanger The water heater stops and the wired controller displays Fd Air intake temperature sensor fault The water hea...

Page 57: ...ossible cause 1 Poor connection of the water tank temperature sensor 2 Loose pressure switch cable 3 Pressure switch fault 4 Mainboard fault Troubleshooting E1 high pressure protection Check whether the thermo bulb of the water tank is properly installed Check whether the pressure switch is abnormal Check whether the pressure switch is properly connected Replace the mainboard Installed the thermo ...

Page 58: ...oubleshooting E4 air exhaust protection Check whether the thermo bulb resistance is normal Check whether refrigerant is insufficient Check whether refrigerant leakage exists Replace the thermo bulb Repair welding and perfuse refrigerant again Add refrigerant to the unit N N Y Y Y 2 3 E6 Communication Fault Fault code Applicable mode all modes Fault judgment condition and method E6 is displayed on ...

Page 59: ... or FL one or more of these codes may be displayed for example Applicable mode all modes Fault judgment condition and method F3 F4 F6 Fd FE or FL is displayed on the wired controller F3 Outdoor ambient temperature sensor fault F4 Air exhaust temperature sensor fault F6 Pipe temperature sensor fault for outdoor heat exchanger Fd Air intake temperature sensor fault FE Upper temperature sensor fault ...

Page 60: ...high pressure and high temperature refrigerant which is the driving force of the entire system Electronic expansion valve The electronic expansion valve performs throttling and pressure reduction to high pressure liquid refrigerant to ensure the pressure difference between the condenser and evaporator In addition it adjusts the flow rate of refrigerant entering the evaporator based on heat load ch...

Page 61: ...ressor on the supporting structure in the same direction as that before removal Screw on the fixed bolts at bottom corners of the compressor using the spanner Note The compressor must be handled horizontally or vertically without inversion 6 Install fixed bolts for the compressor Screw on the fixed bolts at bottom corners of the compressor using the spanner 7 Connect the air intake and air exhaust...

Page 62: ...e Description 1 Remove the coil of the electronic expansion valve Generally the concave on the valve meshes with the convex on the coil Before removing the electronic expansion valve turn the coil clockwise or counterclockwise for a small angle until that the convex is between two adjacent concaves Disconnect the convex from the concave and then remove the coil upwards 2 Disconnect the electronic ...

Page 63: ...of the temperature sensor in order then tidy up the temperature sensor line 2 Procedure for replacing the Mg stick To improve durability of the water tank a Mg stick is installed inside the water tank Generally the Mg stick has a lifespan of two to three years The procedure for replacing the Mg stick is as follows 1 Discharge all water in the water tank 2 Open the upper cover and insulation sponge...

Page 64: ... 1 4 Four Way Valve 430004022 1 5 Compressor and Fittings 00202818 1 6 Condenser Assembly 01122800085 1 7 Electronic Expand Valve 43042800063 1 8 Strainer 0721160101 1 9 Strainer 0721160101 1 10 Cabinet Back 26909400060 1 11 Air Routeway Assembly 01262800165 1 12 Cover of Propeller Housing Front 26909400063 1 13 Centrifugal Fan 10452800002 1 14 Fan Motor 15702800002 1 15 Cover of Propeller Housing...

Page 65: ...280401 1 26 Magnesium rod Subassembly 0406280000202 1 27 Water Tray 26909400057 1 28 Cabinet Front 26909400061 1 29 Display Board 30296000028 1 30 Electric Box Assembly 01392800167 1 31 Capacitor CBB61S 3301074704 1 32 Transformer 43118000001 1 33 Terminal Board 4201115404 1 34 Capacitor CBB65 3300008101 1 35 Terminal Board 42011147 1 36 Main Board 30222000026 1 Above data is subject to change wit...

Page 66: ...02800025S 26902800025S 1 3 Front Grill 26902800030 26902800030 1 4 Electric Box Assy 01392800064 01392800064 1 5 Transformer 43118000001 43118000001 1 6 Capacitor CBB61 33010020 33010020 1 7 Main Board 30222000026 30222000026 1 8 Capacitor CBB65 33000081 33000081 1 9 Terminal Board 42011103 42011103 1 10 Air deflector ring 26902800024 26902800024 1 11 Axial Flow Fan 10333002 10333002 1 12 Fan Moto...

Page 67: ...15 1 28 Enter Water Pipe Sub Assy 04362872 04362872 1 29 Thermostat 45048002 45048002 1 30 Blow off pipe Sub Assy 04362921 04362921 1 31 Thermostat 45048003 45048003 1 32 Magnesium bar Sub Assy 0406280000201 0406280000201 1 33 Discharge pipe Sub Assy 04362873 04362873 1 34 Strainer 07213032 07213032 1 35 Strainer 0721160101 0721160101 1 36 Condenser Assy 01122800020 01122800020 1 37 Electronic Exp...

Page 68: ...7007000178 1 6 Transformer 43118000001 43118000001 1 7 Transformer 4311800000401 4311800000401 1 8 Capacitor CBB65 33000081 33000081 1 9 Main Board 30222000026 30222000026 1 10 Terminal Board 42011106 42011106 1 11 Capacitor CBB61 301074701 301074701 1 12 Air deflector ring 26902800024 26902800024 1 13 Axial Flow Fan 10333002 10333002 1 14 Fan Motor 15702800001 15702800001 1 15 Compressor Gasket 7...

Page 69: ...29 1 30 Condenser Assy 01122800020 01122800020 1 31 Strainer 07213032 07213032 1 32 Strainer 0721160101 0721160101 1 33 Electronic Expansion Valve 43042800008 43042800008 1 34 Electric Expand Valve Fitting 4304413205 4304413205 1 35 Temperature Sensor 390000598 390000598 1 36 Discharge sensor 3900020615G 3900020615G 1 37 Tube Sensor 390002073G 390002073G 1 38 Temperature Sensor 390000451 390000451...

Page 70: ...GREE AIR SOURCE HEAT PUMP WATER HEATER SERVICE MANUAL 68 UNIT MAINTENANCE ...

Page 71: ...of the hot water outlet pipe and the valve at the location for water use 4 Open the cut off valve of the outfall until the water tank is drained 5 Open the cut off valve on the water inlet pipe of the water tank to clean the water tank Close the cut off valve of the outfall until the water discharged from the outfall becomes clean 6 Replenishment water for the water tank by following the water rep...

Page 72: ...on a regular about once a month basis If it is blocked contact the authorized maintenance center for check or replacement Perform sewage disposal by following the guide on a regular about once a year basis 4 Maintenance of the Unit 1 Regularly check whether the air inlet and outlet of the main unit are blocked If blocked immediately clean them 2 Regularly check whether piping between the main unit...

Page 73: ...temperature and resistance of 15 kΩ outdoor ambient temperature sensor Temperature C Resistance kΩ Temperature C Resistance kΩ 20 144 71 2 523 19 138 1 72 2 439 18 128 6 73 2 358 17 121 6 74 2 28 16 115 75 2 205 15 108 7 76 2 133 14 102 9 77 2 064 13 97 4 78 1 997 12 92 22 79 1 933 11 87 35 80 1 871 10 82 75 81 1 811 9 78 43 82 1 754 8 74 35 83 1 699 7 70 5 84 1 645 6 66 88 85 1 594 5 63 46 86 1 5...

Page 74: ...13 0 697 23 16 39 114 0 678 24 15 68 115 0 66 25 15 116 0 642 26 14 36 117 0 625 27 13 74 118 0 608 28 13 16 119 0 592 29 12 6 120 0 577 30 12 07 121 0 561 31 11 57 122 0 547 32 11 09 123 0 532 33 10 63 124 0 519 34 10 2 125 0 505 35 9 779 126 0 492 36 9 382 127 0 48 37 9 003 128 0 467 38 8 642 129 0 456 39 5 997 130 0 444 41 7 653 131 0 433 42 7 352 132 0 422 43 7 065 133 0 412 44 6 791 134 0 401...

Page 75: ... 0 243 66 2 998 156 0 237 67 2 898 157 0 232 68 2 797 158 0 227 69 2 702 159 0 222 70 2 611 160 0 217 Mapping between the temperature and resistance of 20 kΩ pipe temperature sensor and air intake temperature sensor Temperature C Resistance kΩ Temperature C Resistance kΩ 30 361 8 66 3 998 29 339 8 67 3 861 28 319 2 68 3 729 27 300 69 3 603 26 282 2 70 3 481 25 265 5 71 3 364 24 249 9 72 3 252 23 2...

Page 76: ...68 79 95 1 561 0 65 37 96 1 515 1 62 13 97 1 47 2 59 08 98 1 427 3 56 19 99 1 386 4 53 46 100 1 346 5 50 87 101 1 307 6 48 42 102 1 269 7 46 11 103 1 233 8 43 92 104 1 198 9 41 84 105 1 164 10 39 87 106 1 131 11 38 01 107 1 099 12 36 24 108 1 069 13 34 57 109 1 039 14 32 98 110 1 01 15 31 47 111 0 9825 16 30 04 112 0 9556 17 28 68 113 0 9295 18 27 39 114 0 9043 19 26 17 115 0 8799 20 25 01 116 0 8...

Page 77: ...52 134 0 5351 39 11 06 135 0 5219 40 10 62 136 0 509 41 10 2 137 0 4966 42 9 803 138 0 4845 43 9 42 139 0 4727 44 9 054 140 0 4613 45 8 705 141 0 4502 46 8 37 142 0 4394 47 8 051 143 0 4289 48 7 745 144 0 4187 49 7 453 145 0 4088 50 7 173 146 0 3992 51 6 905 147 0 3899 52 6 648 148 0 3808 53 6 403 149 0 3719 54 6 167 150 0 3633 55 5 942 151 0 3549 56 5 726 152 0 3468 57 5 519 153 0 3389 58 5 32 15...

Page 78: ...96 23 583 72 68 9 1655 22 549 04 69 8 9542 21 516 71 70 8 5551 20 486 55 71 5 9676 19 458 4 72 7 9913 18 432 1 73 7 7257 17 407 51 74 7 4702 16 384 51 75 7 2245 15 362 99 76 6 9882 14 342 83 77 6 7608 13 323 94 78 6 542 12 306 23 79 6 3315 11 289 61 80 6 1288 10 274 02 81 5 9336 9 259 37 82 5 7457 8 245 61 83 5 5647 7 232 67 84 5 3903 6 220 5 85 5 2223 5 209 05 86 5 0605 4 195 97 87 4 9044 3 188 1...

Page 79: ...1 2 4308 21 58 766 112 2 3654 22 56 189 113 2 3021 23 53 738 114 2 2409 24 51 408 115 2 1816 25 49 191 116 2 1242 26 47 082 117 2 0686 27 45 074 118 2 0148 28 43 163 119 1 9626 29 41 313 120 1 9123 30 39 61 121 1 8652 31 37 958 122 1 8158 32 36 384 123 1 7698 33 34 883 124 1 7253 34 33 453 125 1 6821 35 32 088 126 1 6402 36 30 787 127 1 5996 37 29 544 128 1 5602 38 28 359 129 1 522 39 27 227 130 1...

Page 80: ...Temperature C Resistance kΩ 48 19 061 139 1 1969 49 18 34 140 1 1694 50 17 651 141 1 1476 51 16 99 142 1 1166 52 16 358 143 1 0913 53 15 753 144 1 0667 54 15 173 145 1 0429 55 14 618 146 1 0197 56 14 085 147 0 9971 57 13 575 148 0 9752 58 13 086 149 0 9538 59 12 617 150 0 9331 60 12 368 ...

Page 81: ...JF00303641 ...

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