Gree R410A Manual Download Page 63

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Busbar over voltage protection

Phase current detection fault

Busbar under voltage protection

Capacitor charge error

Demagnetization protection

Communication error between indoor and
outdoor units, indoor unit’s wired controller

485 communication error between main
controller and drive controller

Fan motor error

PFC over current protection

PFC module overheat

Phase loss protection of compressor

Malfunction of lack of IDU

1.3 Operation Code

Operation

Indoor Unit Display

Trail run

Fluorine recycle

Defrosting

Oil return

Testing online

Vacuumization

Test module

2 Troubleshooting

Troubleshooting principle
(1) Communication malfunction

communication

malfunction

check whether indoor

unit and outdoor unit is

power supplied

Energize indoor unit

and outdoor unit

repiace

communication

wire

measure whether the

communication wire

is in normal

for North America

Photovoltaic Direct-driven

VRF

Summary of Contents for R410A

Page 1: ...Photovoltaic Direct driven VRF for North America R410A GC201610 1 ...

Page 2: ...n 37 3 Installation of outdoor unit 39 4 Installation of indoor Unit 40 5 Installation of Electronic Expansion Valve Assy unit with external EXV 43 6 Installation of Refrigerant Pipeline 44 7 Installation of the Connection Pipe 47 8 Installation of Condensate Pipes 52 9 Electric Wiring 54 10 Debugging of Unit 56 MAINTENANCE 59 1 Malfunction List 60 2 Troubleshooting 61 3 Power Distribution of Unit...

Page 3: ...1 Photovoltaic Direct driven VRF for North America PRODUCT PRODUCT ...

Page 4: ...LS A T U CM810N0120 4 0 13800 4 5 15500 GMV ND18PLS A T U CM810N0070 5 2 18000 5 2 20000 GMV ND22PLS A T U CM810N0110 6 3 22000 7 1 24000 1 2 2 Four way Cassette Model Product Code Cooling Capacity Heating Capacity Power Supply Refrigerant Appearance kW Btu h kW Btu h GMV ND07T A T U CM500N0520 2 2 7500 2 5 8500 208 230V 60Hz R410a GMV ND09T A T U CM500N0530 2 8 9500 3 1 10500 GMV ND12T A T U CM50...

Page 5: ...itable climate Blank T1 condition T2 low temperature climate T3 high temperature climate 3 Unit type DC Inverter omit 4 Function code Q Heat Recovery S Water Heater W Water cooled Unit X Fresh Air Unit Leave blank if above functions are unavailable 5 Code of cooling capacity Nominal capacity 100 W 6 Unit structure M Modular top discharge L Non modular side discharge blank Non modular top discharge...

Page 6: ...Various product lineups are provided with capacity range from 36000Btu h to 48000Btu h which can be widely used in residential commercial and working area and especially applicable to places with big load change Gree residential air conditioner is absolutely your best choice 1 Gree Photovoltaic Direct driven Inverter VRF System adopts DC motor to realize complete direct current and upgrade the ene...

Page 7: ...iary electric heating overheat protection This function is not included in pure heat pump unit 4 SPECIFICATIONS 4 1 Outdoor Unit Model GMV HY36WLT A T U GMV HY48WLT A T U Product Code CN870W0050 CN870W0060 Cooling capacity kW Btu h 10 5 36000 14 1 48000 Heating capacity kW Btu h 13 2 45000 15 8 54000 Circulating air volume m3 h 6000 6000 Noise dB A 56 57 Refrigerant charge volume Kg oz 6 0 6 0 3 5...

Page 8: ...23 23 27 31 31 Gross Weight lbs 64 64 64 73 86 86 kg 29 29 29 33 39 39 Pipe Connection Liquid Side mm Φ6 35 Φ6 35 Φ6 35 Φ6 35 Φ9 52 Φ9 52 inch Φ1 4 Φ1 4 Φ1 4 Φ1 4 Φ3 8 Φ3 8 Gas Side mm Φ9 52 Φ9 52 Φ12 7 Φ12 7 Φ15 9 Φ15 9 inch Φ3 8 Φ3 8 Φ1 2 Φ1 2 Φ5 8 Φ5 8 Drain Pipe mm Φ25 Φ25 Φ25 Φ25 Φ25 Φ25 inch Φ1 Φ1 Φ1 Φ1 Φ1 Φ1 Power supply 1 phase 208 230V 60Hz Fan Type Quantity Centrifugal 2 Centrifugal 2 Ce...

Page 9: ...1 2 40 1 2 4 5 8 Net Weigh Main Body lbs 50 58 58 58 58 kg 22 5 26 5 26 5 26 5 26 5 Panel lbs 15 3 8 15 3 8 15 3 8 15 3 8 15 3 8 kg 7 0 7 0 7 0 7 0 7 0 Gross Weigh Main Body lbs 64 75 75 75 75 kg 29 34 34 34 34 Panel lbs 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 kg 11 0 11 0 11 0 11 0 11 0 Pipe Connections Liquid Side mm Φ6 35 Φ6 35 Φ6 35 Φ6 35 Φ9 52 inch Φ1 4 Φ1 4 Φ1 4 Φ1 4 Φ3 8 Gas Side mm Φ9 52 Φ9 52 ...

Page 10: ... Weight Main Body lbs 58 72 72 72 72 kg 26 5 32 5 32 5 32 5 32 5 Panel lbs 15 3 8 15 3 8 15 3 8 15 3 8 15 3 8 kg 7 0 7 0 7 0 7 0 7 0 Gross Weight Main Body lbs 75 88 88 88 88 kg 34 40 40 40 40 Panel lbs 24 1 4 24 1 4 24 1 4 24 1 4 24 1 4 kg 11 0 11 0 11 0 11 0 11 0 Pipe Connections Liquid Side mm Φ9 52 Φ9 52 Φ9 52 Φ9 52 Φ9 52 inch Φ3 8 Φ3 8 Φ3 8 Φ3 8 Φ3 8 Gas Side mm Φ15 9 Φ15 9 Φ15 9 Φ15 9 Φ15 9 ...

Page 11: ...2 7 Φ12 7 Φ15 9 inch Φ3 8 Φ3 8 Φ1 2 Φ1 2 Φ5 8 Drain Pipe mm Φ17 Φ17 Φ17 Φ17 Φ17 inch Φ2 3 Φ2 3 Φ2 3 Φ2 3 Φ2 3 Power supply 1 phase 208 230V 60Hz Fan Type Quantity Driving Mechanism Direct driven Motor Type PG Motor Power Input W 50 50 60 60 70 Motor Running Current A 0 2 0 2 0 21 0 21 0 31 Rate H M L CFM 295 247 206 295 247 206 370 324 283 370 324 283 440 353 294 m3 h 500 420 350 500 420 350 630 5...

Page 12: ...nd outdoor temperature 1 Correction factor of cooling capacity 14 16 18 20 22 24 26 57 61 64 68 72 75 79 20 16 25 30 35 45 48 68 61 77 86 95 113 118 2 Correction factor of heating capacity 5 3 3 Correction factor of pipe length and height difference 1 Symbol description Hp Height difference in case indoor unit is below outdoor unit m feet Hm Height difference in case indoor unit is above outdoor u...

Page 13: ...1 20 150 L m 1301 40 Variance ratio of heating capacity Variance ratio of heating capacity NOTE m 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 ft 0 33 66 98 131 164 197 230 262 295 328 361 394 427 459 492 6 PRINCIPAL OF OPERATION Name Compressor 4 way valve Cut off valve One way valve Capillary tube Symbol Name Gas liquid separator Pressure switch Pressure sensor exchanger Electronic expan...

Page 14: ...ion so as to realize the cooling effect In heating 4 way valve will be energized to make refrigerant circulate in a reverse direction of cooling Refrigerant will release heat in indoor heat exchangers electric heating elements will also work under certain circumstance and release heat and absorb heat in outdoor heat exchangers circularly so as to realize the heating effect Photovoltaic Direct driv...

Page 15: ...13 for North America CONTROL CONTROL Photovoltaic Direct driven VRF ...

Page 16: ...isplay board via 4 core communication cable In engineering installation address dial up of the display board and the mainboard of indoor unit shall be dialed The address dial up of the mainboard of indoor unit must be identical with that of the display board of the same indoor unit Address dial up of different indoor unit must vary Multi VRF indoor unit is applicable to all digital or inverter out...

Page 17: ...mperature lower limit for Cooling Limit the minimum temperature value under Cooling or Dry mode Temperature upper limit for Heating Limit the maximum temperature value under Heating Space Heating or 3D Heating mode 4 Auto mode Under Auto mode the indoor units will automatically select their operating mode as per the temperature change so as to make the ambient comfortable 5 It shows the setting te...

Page 18: ...9 20 Quiet status including Quiet and Auto Quiet two status 21 Allow auxiliary electric heating On icon 22 Light On Off function 23 X fan function 24 Health function 25 Fresh air status 26 Out function 27 Outdoor unit defrosting status 28 Gate control function 29 Shielding status 30 Child Lock status 31 One wired controller controls multiple indoor units 32 Save status of indoor unit 33 It indicat...

Page 19: ...ease pay attention to the following 1 Before installation disconnect power of the indoor unit Do not operate when power is connected 2 2 core twisted pair cable from the installation hole on the wall and lead it through the hole on the back plate of wired controller 3 Place the wired controller on wall and secure its back plate on wall with screw M4X25 4 Connect the 2 core twisted pair cable to te...

Page 20: ...work D1 D2 H1 H2 D1 D2 Indoor unit Outdoor unit D1 D2 H1 H2 D1 D2 Outdoor unit Indoor unit Fig 2 2 4 1 One wired controller controls one indoor unit Fig 2 2 4 2 Two wired controllers control one indoor unit D1 D2 H1 H2 D1 D2 H1 2 H D1 D2 H1 H2 D1 D2 Indoor unit 1 Indoor unit 2 Indoor unit 16 Outdoor unit Fig 2 2 4 3 One wired controller controls multiple indoor units simultaneously Photovoltaic Di...

Page 21: ...mperature area display C00 and CHECK is on 2 Select a parameter code by pressing or 3 Press ENTER CANCEL botton ro return to the upper level menu till quitting parameter query The user parameter query list is as follows Paremeter Code Parameter Name Parameter Range View Method C00 Parameter setting ingress C01 Project number query of IDU and fautly IDU loaciton 1 255 Project number of online IDU O...

Page 22: ... air filter cleaning 4 416 days Timer area displays the prompt time query for air filter cleaning C09 Wired controller address query 01 02 Timer area displays the adrsess of the current wired controller C11 Indoor unit quantity query in one to many mode 1 16 Timer area displays the number of IDUs controlled by the wired controller C12 Outdoor environment temperature query Timer area displays the t...

Page 23: ...r nor slave wired controller can receive remote signals The wired controller can only be operated by pressing P13 Wired controller address settings 01 Master wired controller 02 Slave wired controller 01 When two wired controllers simultaneously control one or more IDUs the two controllers should use different addresses The slave wired controller address 02 does not have the unit parameter setting...

Page 24: ... 25 Cooling setting temperature heating setting temperature 1 Note The two settings are still valid in remote shielding status P38 Heating setting temperature in automatic mode 16 29 20 P43 Preferential operation settings 00 common operation 01 preferential operation 00 When power supply is insufficient users are allowed to power on off the IDU set with preferential operation and other IDUs are fo...

Page 25: ... AUTO mode can be set Under the AUTO mode when the indoor unit is cooling and will be on when the indoor unit is heating and will be on 3 Temprature Setting Pressing or button in On status increases or decreases set temperature by 1 C holding or button increases or decreases set temperature by 1 C every 0 3s In Cooling Fan Heating Floor Heating 3D Heating or Space Heating mode temperature setting ...

Page 26: ...he fan will be kept running at the low speed and the fan speed isn t adjustable 5 Timer setting The wired controller is equipped with two kinds of timer general timer and clock timer General timer is factory defaulted setting Please refer to parameter setting a General Timer Unit On Off after a desired hour can be set through general timer Set Timer when timer is not set press TIMER button to ente...

Page 27: ...Unit On Off at a certain time can be set throughclock timer Set Timer 1 Press TIMER button to enter timer on setting and the ON icon is blinking 2 Press or button to adjust unit On time Press ENTER CANCEL button to finish setting 3 Before pressing ENTER CANCEL button pressing TIMER button can save unit On time and then switch to unit Off time setting with OFF icon blinking 4 Press or button to adj...

Page 28: ...tton for 5s increases or decreases timer time by 10min Clock Timer setting is shown as follow 6 Swing Setting In unit on status up down swing function and left right swing function can be set 1 Up down swing function 26 for North America CONTROL Photovoltaic Direct driven VRF ...

Page 29: ... swing icon will be bright Cancel left right swing When left right swing is activated press FUNCTION button to switch to left right swing with left right swing icon blinking and then press ENTER CANCLE button to cancel left right swing 7 Quiet Setting Quiet Function decrease the noise of indoor unit and achieve the quiet effect Quiet function has two modes Quiet mode and Auto Quiet mode It is avai...

Page 30: ...Sleep Function in unit On status press SLEEP button to tactivate or cancel Sleep function When Sleep function is activated icon is bright and quiet or auto quiet mode is also activated When Sleep function is closed if quiet function is activated before starting Sleep function only sleep function 28 for North America CONTROL Photovoltaic Direct driven VRF ...

Page 31: ...nge is 1 10 Press ENTER CANCEL button to turn on Air function Turn off Air Function When Air function is on press FUNCTION button to select Air then press ENTER CANCEL button to cancel this setting The setting of Air function function is shown as follow 10 Light On Off Setting Light On Off Function Light of indoor unit can be turned on or off Turn on the Light When unit is on or off press FUNCTION...

Page 32: ...setting the minimum temperature under Cooling and Dry modes and setting maximum temperature under Heating 3D Heating and Space Heating modes Thus energy saving can be realized Save Setting Save Setting for Cooling When unit is on and under Cooling or Dry mode press FUNCTION button to select Save function icon will blink and MIN icon lit up Press or button to adjust to the minimum temperature Press...

Page 33: ...er Clean Reminder Function When unit is on press FUNCTION button and select Filter Clean Reminder icon will blink Press or button to adjust the cleaning level of which the range is 00 10 39 Press ENTER CANCEL to turn on this function Turn off Filter Clean Reminder Function When unit is on and this function has been turned on press FUNCTION button and select Clean Then icon will blink Set the clean...

Page 34: ...ne shows 00 Slight Pollution The former digit shows 1while the latter one shows 0 which indicates the accumulating operating time is 5500 hours Each time the latter digit increases 1 the operating time increases 500 hours When it reaches 9 it means the operating time is 10000 hours Medium Pollution The former digit shows 2while the latter one shows 0 which indicates the accumulating operating time...

Page 35: ...link Then press ENTER CANCEL button to turn on this function Turn off Out Function When this function is on press FUNCTION button to select Out icon will blink Then press ENTER CANCEL button to turn off this function 15 Remote Shield Function Remote Shield Function Remote monitor or central controller can disable the relevant functions of wired controller so as to realize the function of remote co...

Page 36: ...When there occurs any error during operation the temperature display zone on the wired controller will show error codes If several errors happen at the same time error codes will show on the display repeatedly Note If error occurs please turn off the unit and send for professionals to repair The display of Outdoor Unit High Pressure Protection when unit is on is shown as follow 3 Remote Controller...

Page 37: ...perature displaying type on the unit s display 8 HEALTH Set health function 9 CLOCK Set clock of the system 10 SLEEP Set sleep function 2 Remote controller YV1L1 No Button name Function 1 ON OFF Turn on or turn off the unit 2 FAN Set fan speed 3 Set temperature and time 4 MODE Set operation mode 5 Set quiet function 6 Set health function and air function 7 Set left right swing status 8 Set up down...

Page 38: ...36 Photovoltaic Direct driven VRF for North America INSTALLATION ...

Page 39: ...ked air conditioning performance is reduced compressor wear is increased or even hinder the normal operation of the system and burn the compressor 3 The vacuum degree in the refrigerant pipe The refrigeration performance is reduced The system fails to keep normal operation due to frequent protection measures When the problem getting serious compressor and other major components can be damaged 4 Wa...

Page 40: ...struction must have certifications and test compulsory standards If environmentally friendly materials are to be used as required by customers all such materials must meet national 2 1 Refrigerant piping 1 Material requirement Dephosphorization drawing copper pipe for air conditioners 2 Appearance requirement The inner and outer surface of pipe should be smooth without pinhole crack peeling bliste...

Page 41: ... on the nameplate Make sure the power supply is safe 2 This air conditioner must be properly grounded through the receptacle to avoid electric shock The ground wire shouldn t be connected with gas pipe water pipe lightning arrester or telephone line 3 Maintain good air circulation to avoid lacking oxygen 4 Read this manual carefully before installation 3 2 Selection of installation site 1 Select a...

Page 42: ...on hole angel of ropes must be smaller than 40º during hanging and moving Unit mm inch Model A B C D E GMV HY36WLT A T U GMV HY48WLT A T U 900 35 3 8 340 13 3 8 1345 53 572 22 1 2 378 15 3 7 Installation space requirement If all sides of the ODU including the top are surrounded by walls process according to the following requirements for installation space 350mm 13 3 4inch 78 3 4inch 8inch 8inch 7...

Page 43: ... 19 1 3 700 27 5 9 615 24 1 5 200 7 7 8 121 4 3 4 528 20 4 5 161 6 1 3 580 22 5 6 GMV ND14PLS A T U 942121 37 491 19 1 3 900 35 3 7 615 24 1 5 200 7 7 8 121 4 3 4 728 28 2 3 161 6 1 3 780 30 5 7 GMV ND18PLS A T U GMV ND22PLS A T U 1142 45 491 19 1 3 1100 43 1 3 615 24 1 5 200 7 7 8 121 4 3 4 928 36 1 2 161 6 1 3 980 38 4 7 4 1 2 Installation space 150 6 4 1 3 Installation notice 1 2 Installation f...

Page 44: ...ng screws C Indoor units B Ceiling aperture A Decoration panel A Decoration panel B Ceiling aperture C Indoor units D Distance between lifting screws Refrigerant pipe Lifting screw D Distance between lifting screws C Indoor units B Ceiling aperture A Decoration panel Unit mm inch Model A B C D E G H GMV ND07T A T U GMV ND09T A T U GMV ND12T A T U 950 37 2 5 890 35 840 33 680 26 7 9 780 30 5 7 65 2...

Page 45: ...d environment Keep the unit from insolation and rain Water can be drained from drainage pipe conveniently There can t be any obstacle at air inlet and air outlet to in order to keep good ventilation Please take proper measures to reduce noise and vibration 4 3 4 Electrical installation of unit All electrical installation must be done by professionals according to national and local laws and regula...

Page 46: ...48WL B T U Allowable value m feet Fitting pipe 300 984 L1 L2 L3 a b c d m Actual length 120 394 L1 L2 L3 d Equivalent length 150 492 From the 1st branch to the farthest indoor pipe 40 131 L2 L3 d Height difference between ODU and IDU ODU at upper side 50 164 ODU at lower side 40 131 Height difference between IDUs 15 49 6 2 Dimension of Pipe Main Pipe from ODU to the 1st Indoor Branch Dimension of ...

Page 47: ...3 8 6 3 Selection of Indoor Branches Select indoor branches according to the total capacity of downstream indoor units ODU IDU Indoor branches R410A Refrigerant system Total capacity of downstream indoor units C Btu h Model Y type branch C 6800 FQ01A 6 4 Dimension of Pipe between Indoor Branches Select pipe between indoor branches according to the capacity of downstream indoor units if the capacit...

Page 48: ...on of pipe between indoor branch and IDU should be consistent with the dimension of indoor pipe ODU IDU Indoor branches Pipe between indoor branch and IDU Rated capacity of IDU C Btu h Gas pipe mm inch Liquid pipe mm inch C 9600 Φ9 52 3 8 Φ6 35 1 4 9600 C 17000 Φ12 7 1 2 Φ6 35 1 4 17000 C 48000 Φ15 9 5 8 Φ9 52 3 8 48000 C 55000 Φ19 05 3 4 Φ9 52 3 8 55000 C 96000 Φ22 2 7 8 Φ9 52 3 8 NOTICE If the d...

Page 49: ...t be repeatedly bent or stretched otherwise the material will get harder Do not bend or stretch the pipe for more than 3 times at the same position 7 1 Flaring Process 1 Use pipe cutter to cut the connection pipe in case it is unshaped 2 Keep the pipe downward in case cutting scraps get into the pipe Clear away the burrs after cutting 3 4 d1 d2 d1 d2 90 1 7 1 1 Pipe Bending 1 Reshape the pipe by h...

Page 50: ...acks and cause leakage 90o Torque wrench Common wrench Pipe dimension Tightening torque 6mm 1 4inch 9 5mm 3 8 inch 12 7mm 1 2 inch 16mm 5 8 inch 15 30N m 11 22ft 1b 35 40N m 26 29ft 1b 45 50N m 33 37ft 1b 60 65N m 44 48ft 1b 7 1 3 Outdoor Pipe Connection Below is the piping diagram of GMV 36WL B T U GMV 48WL B T U According to customer requirement or space limit outlet pipe can be installed from t...

Page 51: ...ation for pipeline To avoid condensate or water leakage on the connection pipe the gas pipe and liquid pipe must be wrapped with thermal insulating material and adhesive tape for insulation from the air Thermal insulating material shall be able bear the pipe temperature For heat pump unit liquid pipe should bear 70O C or above and gas pipe should bear120O C or above For cooling only unit both liqu...

Page 52: ...should be made for outdoor pipeline When pipeline exceeds 1m 3 1 4feet a pinch board should be added for protection 7 2 Disassembly of Compressor Feet factory Fasten the nut after removal Metal pieces Metal pieces Binding nut Compressor When installing the unit metal pieces for transportation must be removed Then fasten the binding nuts again and wrap back s operating life will be shortened 7 3 Va...

Page 53: ...gerant shall be decided on site according to 3 Record the amount of additional refrigerant for convenience of after sales service 2 Calculation of the amount of additional refrigerant Calculation method of the quantity of additional refrigerant based on liquid pipe Quantity of additional refrigerant length of liquid pipe X quantity of additional refrigerant per meterr 39 3 8inch Diameter of liquid...

Page 54: ...uid pipe Φ9 52 A B C a 10 5 5 3 23m 75 1 2 feet Φ6 35 D b c d 5 3 2 1 11m 36feet NOTICE Liquid pipe that is within 20m 65 5 8feet doesn t need to be added with refrigerant Therefore the minimum quantity of additional refrigerant 23 20 0 054 11 0 022 0 404kg 14oz 8 Installation of Condensate Pipes 8 1 Ensure an inclination degree of more than 1 when connecting the drain pipe to the IDU 1000 1500 mm...

Page 55: ...r Different Types of IDUs 8 2 1 Drain Pipe Installation for Hidden Air duct type IDU for Air Supply a Ensure an inclination degree of greater than 1 when connecting the drain pipe to the IDU maintenance c There is a condensate water outlet on both sides of the IDU After one condensate water outlet is determined use the rubber stopper to block the other outlet Tie it with threads and strap with ins...

Page 56: ...s short as possible c If the water is discharged to the outdoor side it cannot drop to the outdoor ground directly 8 4 Requirements on Centralized Drainage for IDUs a When there are multiple IDUs in the same building centralized drainage is adopted b When a header pipe is used the drain pipe of each IDU must be higher than the header pipe c The diameter of the header pipe must be determined on the...

Page 57: ...d to electric shock 8 Power supply must include secure grounding terminal Do not connect the ground wire to the following Water pipe Gas pipe Drain pipe Other places that are deemed as not secure by professional technicians 9 1Wiring Diagram 1 Connection of power cord and communication wire Separate power supply for Indoor and Outdoor 2 The wiring diagram for power cord of outdoor unit and communi...

Page 58: ...sundries from the unit such as metal chips joint forceps holder and so on 8 Check whether the appearance and pipeline system are damaged during carry or transportation process 9 Calculate the required added refrigerant charging volume according to the length of pipe of system and pre charge the refrigerant If refrigerant can t be added any more when the required refrigerant charging volume hasn t ...

Page 59: ...s l a u s u n u e m o s s i e r e h t f I The fan motor and compressor of the outdoor unit will run automatically in three minutes 10 2 1 Notice 10 2 2 Check after Installation Please check the following items before test operation Items to be checked Possible malfunction Has it been fixed reliable The unit may drop vibrate or make noise Has the gas leakage been checked It may cause insufficient c...

Page 60: ...e professionally skilled personnel on the premise that all items listed above are in normal conditions Set the status of the power supply switch as ON eight hours before the start of operation Press mode button to select the COOL or HEAT Whether the air conditioner is work normally or not The fan motor of the indoor unit will run automatically in one minute The fan motor and compressor of the outd...

Page 61: ...MAINTENANCE for North America Photovoltaic Direct driven VRF 59 ...

Page 62: ...Outdoor heat exchanger coil outlet temperature sensor error b3 Vapor liquid separator inlet temperature sensor error b6 High pressure protection E1 Low pressure protection E3 Discharge protection E4 Refrigerant lacking protection E0 Compressor power protection E0 Intermediate vapor injection temperature sensor error E0 EEPROM read write error F0 High pressure sensor error F1 Middle pressure sensor...

Page 63: ...FC module overheat P0 Phase loss protection of compressor P0 Malfunction of lack of IDU C4 1 3 Operation Code Operation Indoor Unit Display Trail run A0 Fluorine recycle A2 Defrosting A3 Oil return Testing online A3 Vacuumization A8 Test module 2 Troubleshooting Troubleshooting principle 1 Communication malfunction communication malfunction check whether indoor unit and outdoor unit is power suppl...

Page 64: ...l El iminate obst acles and sund ri es Me asure the ci rcum st ances of f an motor a nd s ignalinpu t Ch eck wh ethe rthe indoor sw ing blade is o pe n comp letely Me asure the ci rcum st ances of s wing mo torand si gn al i np ut Ch eck wh ethe rthe el ectr onic expa nsion valv e forindoor unit a nd o utdoor u nitcan operate no rm ally Enga ge v al ve a nd c oil Blockage f or s ystem pipe line Ma...

Page 65: ...63 for North America Photovoltaic Direct driven VRF 3 Discharge temperature protection ...

Page 66: ...64 for North America Photovoltaic Direct driven VRF 4 Mafunction of temperature sensor 5 Malfunction of sensor 6 Unit and main board can t be energized ...

Page 67: ...pe are intergrated inside the PFC module It will transform AC input power into DC power Meanwhile MOS pipe is controlled by PWM wave Pressure will be increased by induction 3 Power Distribution of Unit 3 1 Power distribution of unit The main loop is showed by bold line line width 1mm the control loop is showed by slim line line width 0 2mm Filter plate Drive board Compressor Fan Power wiring board...

Page 68: ...U YE WH YE RD WH L1 L2 L1 G L2 G XT1 W10 BU W11 YE W12 RD W14 W13 W9 RD W8 YE W7 BU W V COMP2 E U W V COMP1 E U YEGN YEGN L1 L2 L4 L6 L5 L5 L5 L7 LD L3 L4 L7 L6 L8 L8 L9 L9 L10 L10 L13 YEGN YEGN G G G G G G G G XT2 solenoid coil3 solenoid coil2 4 way valve coil high pressure switch 2 low pressure sensor high pressure switch 1 medium pressure sensor discharge temperature sensor comp 2 high pressure...

Page 69: ...ｏｔｏｒＵｐＤｏｗｎｓｗｉｎｇｍｏｔｏｒ５５５ＭＷａｔｅｒｐｕｍｐＭ１ AP 3 CN1 CN2 D i spl a y board CN42 CN41 8 9 4 O u tdoor or i n door Wi r ed control l e r AP 2 2WH 8RD 9BK 10BN 11O G Communi c ati o n cord i nterface Wi r ed control l e r i n terface XT2 N o teX5 core Electroni c e xpansion v alve c onne ct t o CN20 6 core E l e ctronic expansi o n val v e conne ct t o CN19 POWER G CN2 CN3 12BU 13BK Water Swi t ...

Page 70: ...mp s ensor Environment temp sensor Steppi ng Motor RD BN BK O G D i spl a y RECEI V ER A N D D I SPLAY BOAR D CN41 CN42 13 WH WH CO M OUT Humi d G G Electri c al b ox Evaporator I n outdoor u nit Wi r ed control l er G YEGN YEGN BK 4 Removal of Parts 4 1 Key parts Photo Name Function compressor Core part of air conditioning system It sucks low temperature and low pressure gas compress it to high t...

Page 71: ...d valve Control to the high voltage current open upon power on close upon power off Cut off valve It used for connecting indoor unit and outdoor unit and used for maintenance and installation 4 2 Removal of key parts 4 2 1GMV HY36WLT A T U GMV HY48WLT A T U series unit Removal operation for panel Remark Before removing the panel please make sure that the unit is disconected with the power Process ...

Page 72: ...t it 3 Remove front panel and grille with screwdriver 4 Remove left side plate and rear side plate plate with screwdriver remove the rear side plate Removal operation for blade Remark Before removing the motor please make sure that the unit is disconnected with the power Process Photo Operation Instruction 1 Remove grille Then remove the grille ...

Page 73: ...tor Replace the motor tighten screws with screwdriver and then connect teh power cord of motor 5 Assemble unit Assemble the unit in the the converse sequence Removal operation of compressor Remark Before removing the compressor please make sure that there s no refrigerant inside the pipeline and the power is disconnected Process Photo Operation Instruction ...

Page 74: ...ressor burn out other parts 3 Loose nuts compressor Twist off the nuts for compressor with wrench 4 Remove the chassis from compressor Take out the compressor and replace it Note When replacing the compressor do not damage nearby pipelines and other parts 5 Fix the new compressor at the chassis bottom of compressor 6 Connect suction pipe and discharge pipe of copressor and pipeline of system again...

Page 75: ...on wires are connected well If there s no problem after checking install front and rear cover plates Removal operation for 4 way valve Remark Before removing the 4 way valve please make sure that there s no refrigerant inside the pipeline of system and then power is disconnected Process Photo Operation Instruction 1 Disconnect the coil of 4 way valve from the 4 way valve Remove the coil of 4 way v...

Page 76: ...ark Before removing the electronic expansion valve please make sure that there s no refrigerant in th pipeline of system and the power is disconnected Process Photo Operation Instruction 1 Disconnec the electronic expansion valve from the pipeline Remove the coil of electroc Weld the connection pipe for expansion valve and then pull out the connection pipe Note During welding process do 2 Take out...

Page 77: ... Process Photo Operation Instruction 1 Disconnect inlet pipe and exit pipe of gas liquid separator Weld those connection spots on the gas liquid separator and then pull out the connection pipe Note During welding process do not 2 Replace gas liquid separator Loose screws with screwdriver Loose screws with screwdriver Replace gas lliquid separator 3 Replace gas liquid separator Weld the pipe connec...

Page 78: ... plate 4 Remove the rear propeller housing Loosen the fasteners that connect the rear propeller housing with the front propeller housing and remove the rear propeller housing 5 Remove the front propeller housing Use a screwdriver to unscrew the front propeller housing and then remove the propeller housing 6 Loosen the louver and motor Use a hexagon to unscrew the louver and loosen the fasteners of...

Page 79: ... screwdriver to unscrew the water tray 2 Remove the water tray Remove the water tray 3 Unscrew the louver Use a wrench to unscrew the louver 4 Remove the louver Remove the louver 5 Unscrew the motor Use a screwdriver to unscrew the motor 6 Replace the motor with a new one Replace the motor with a new one Photovoltaic Direct driven VRF ...

Page 80: ...crews Use a screwdriver to screw the water tray Pump Step Diagram Operation Procedure 1 Unscrew the water tray Loosen the screws Use a screwdriver to unscrew the water tray 2 Remove the water tray Replace the water tray 3 Remove the drainage duct and unscrew the pump 1 Unscrew the outlet pipe 2 Unscrew the pump 3 Remove the drainage duct and use a screwdriver to unscrew the pump Photovoltaic Direc...

Page 81: ...a screwdriver to screw the water tray Wall Mounted Type IDU Removal of Fan Motor Remark before removing making sure power is disconnected Step Diagram Operation Procedure 1 Remove the louver Take off the axle bush of the louver Remove the louver 2 Open the front panel Hold the indents on both sides of the panel and pull it out in the direction shown by the arrow 3 Remove the electrical box cover 2...

Page 82: ...al box 8 Remove the evaporator Use a screwdriver to unscrew connection pipe on the back of the unit and take off the press plate Unscrew the screws of evaporator with a screwdriver and then remove the evaporator 9 Remove motor s pressing plate pressing plate with a screwdriver and then remove it 10 Remove the motor and fan Take off the motor and fan directly Use a screwdriver to unscrew the screws...

Page 83: ... if its pressure goes up or not 2 a Vacuum pump for the gas pipe and liquid valve at the same time Connector on gas side Connector on liquid side Gas liquid Pressure gauge connector valve Refrigerant cylinder Spring balance b c The final vacuum for the vacuum pump should reach 0 1MPa Before vacuum pumping please confirm that the cut off valve for gas pipe and liquid pipe is at off status If the re...

Page 84: ...ithin 20m 65 5 8feet doesn t need to be added with refrigerant First confirm that there is no leakage from the system When compressor is not working charge additional R410A with specific amount to the unit through the filling opening of the liquid pipe valve of the outdoor unit If required amount cannot be quickly filled due to pressure increase of the pipe then set the unit in cooling startup and...

Page 85: ...hot wind for helping refrigerant charging However prohibit use flame to heat the liquid storage tank directly Otherwise it may cuase personal injury or property damage due to explosion Confirm that the gas valve and liquid for outdoor unit is at of status 3 5 3 3 Notice for filling refrigerant 5 4 Airtightness test 5 4 1 Importance of airtightness test The airtightness of VRF system is the leak ti...

Page 86: ...frigerant system b Record the data on manometerk ambient temperature and test time at the same time c d Pressure should be kept the same e If it needs to keep pressure for a long time decrease the pressire lower than 0 55MPa pr below Long time high pressure can lead to leakage at the welding position which may cause risk f Note Before airtightness test all welding lines can t be insulated and bund...

Page 87: ...20019 1 10 Oil Separator Sub Assy 43000054 1 11 1 12 1 13 Strainer 26904100016 1 14 Oil Separator 07424100033 1 15 1 16 Right Connection Board 07424105 1 17 1 18 1 Photovoltaic Direct driven VRF 01344100003 Cut off Valve Sub Assy 07304100014 Cut off Valve 07330000002 Sensing Device 322101002 Sensor High Pressure 322101036 Sensor High Pressure 322101032 Electric Expansion Valve Sub Assy 43044100068...

Page 88: ...314100012P Cabinet 01514100002P Front Grill 01574100009 Sensor Sub assy 39004100009G Fan Motor 15704100013 Left Side Plate 01314100013P Inductance Box Sub Assy 100002000791 Motor Support Sub Assy 01804100495 PFC Inductance 43128000031 Retaining Plate Water Level Switch 01844100011 Coping 01264100008P Electric Box Assy Clapboard Sub Assy 01244100050 heat preservation Sleeving 1220552703 Supporting ...

Page 89: ...o change without notice pls reference the SP in global service website 75 76 77 78 79 80 81 82 Main Board Terminal Board Terminal Board Terminal Board Terminal Board 42011147 42018094 42011154 42010270 Radiator 49018000140 Electric Box Sub Assy 01394100515 Main Board 300027000171 300027000200 ...

Page 90: ...JF00303127 ...

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