Midea MGRH10A-PA1Z Manual Download

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Aqua Mini Full DC Inverter Unitary Chiller 50Hz

1. Outdoor units lineup

MGRH5A-PA1Z, MGRH7A-PA1Z

MGRH10A-PA1Z,MGRH12A-PA

MGRH14A-PA

Z, MGRH16A-PA

Model

Power Supply

(V/Ph/Hz)

Capacity

Compressor

type

Heat

exchanger

A/C mode

Hydraulic
module

Refrigerant

MGRH5A-PA1Z

220-240/1 /50

5.0kW

DC Inverter

Plate type

Heat pump

Built-in

R410A

MGRH7A-PA1Z

220-240/1/50

7.0kW DC

Inverter

Plate type

Heat pump

Built-in

R410A

Model

Power Supply

(V/Ph/Hz)

Capacity

Compressor

type

Heat

exchanger

A/C mode

Hydraulic
module

Refrigerant

MGRH10A-PA1Z

220-240/1/50

10.0 DC

Inverter

Plate type

Heat pump

Built-in

R410A

MGRH12A-PA

380-415/3/50

11.2 DC

Inverter

Plate type

Heat pump

Built-in

R410A

MGRH14A-PA

380-415/3/50

12.5 DC

Inverter

Plate type

Heat pump

Built-in

R410A

MGRH16A-PA

380-415/3/50

14.5 DC

Inverter

Plate type

Heat pump

Built-in

R410A

Summary of Contents for MGRH10A-PA1Z

Page 1: ...hiller Applicable Model Midea reserves the right to discontinue or change specification or designs at any time without notices and without incurring obligations DM16 01 01 24en MGRH5A PA1Z MGRH7A PA1Z...

Page 2: ...cteristics 19 9 Capacity Tables 20 10 Operation Limits 26 11 Water Pressure Drop 28 12 Sound Level 31 13 Exploded View 32 14 Installation 38 15 Checking and Starting Up the Unit 51 16 Running and Main...

Page 3: ...p Built in R410A MGRH7A PA1Z 220 240 1 50 7 0kW DC Inverter Plate type Heat pump Built in R410A Model Power Supply V Ph Hz Capacity Compressor type Heat exchanger A C mode Hydraulic module Refrigerant...

Page 4: ...the air resistance save more power and enhance heat exchange performance Hydrophilic film fins and inner threaded copper pipes optimize heat exchange efficiency 2 3 Low operating sound design Optimall...

Page 5: ...kW 3 24 3 2 3 5 3 31 3 25 3 30 COP 2 5 Wide operation temperature range Stable and safe running at wide ambient temperature range cooling performance from 5 C to 46 C heating from 15 C to 27 C COOLING...

Page 6: ...with advanced function and friendly user interface The chiller can be controlled by wired controller KJR 120F BMK E also which is optional chosen Note When connecting wired controller outdoor unit co...

Page 7: ...ncy and improved reliability 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 2 11 Water pump starts stops compulsory function Press Check button for 3 seconds to start the water pump operati...

Page 8: ...e of AISI 316 stainless steel to ensure high heat exchange efficiency complete with electric heater and differential pressure switch The complete heat exchanger is insulated with thermal insulation cl...

Page 9: ...ter 3 Automatic discharge valve 4 Axial flow fan 5 Differential pressure switch 6 Condenser 7 Accumulater 8 Security discharge 9 Electric expansive valve 10 Plate heat exchanger 11 Electrical panel 12...

Page 10: ...utside dia and type mm 7 94 7 94 Inner grooved copper tube Inner grooved copper tube Coil length height mm 885 880 885 880 Number of circuits 6 6 Water pump Type RS15 6 3 WILO RS15 6 3 WILO Input H M...

Page 11: ...r fan motor Model WZDK100 38G WZDK100 38G Type DC Motor DC Motor Brand Panasonic Panasonic Input W 100 100 Speed r min 800 800 Outdoor coil Number of rows 2 2 Tube pitch a row pitch b mm 22 19 05 22 1...

Page 12: ...urrent A 6 9 6 9 Locked rotor Amp A 44 44 Thermal protector Inner Inner Refrigerant oil ml VG74 1400 VG74 1400 Outdoor fan motor Model WZDK100 38G WZDK100 38G Type DC Motor DC Motor Brand Panasonic Pa...

Page 13: ...tlet temperature 23 18 C outdoor ambient temperature 35 C DB 2 Heating 3 warm water inlet outlet temperature 40 45 C outdoor ambient temperature 7 C DB 6 C WB 4 warm water inlet outlet temperature 30...

Page 14: ...Mini Full DC Inverter Unitary Chiller 50Hz 14 5 Dimensions MGRH5A PA1Z MGRH7A PA1Z Unit mm 966 366 354 990 624 MGRH10A PA1Z MGRH12A PA3Z MGRH14A PA3Z MGRH16A PA3Z Unit mm 1327 900 970 600 348 320 400...

Page 15: ...19 20 21 22 23 24 A 1 Compressor 2 4 Way Valve 3 Accumulatior 4 Air Side Heat Exchanger 5 Electronic Expansion Valve 6 Storage Tank 7 Strainer 8 Water Side Heat Exchanger Plate Heat Exchange 9 Differe...

Page 16: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 16 7 Wiring Diagram MGRH5A PA1Z MGRH7A PA1Z...

Page 17: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 17 MGRH10A PA1Z...

Page 18: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 18 MGRH12A PA3Z MGRH14A PA3Z MGRH16A PA3Z...

Page 19: ...6 20 29 5 8 1 0 195 1 65 MGRH10A PA1Z 50Hz 220 240V 1Ph 198V 264V 15 1 25 0 30 52 12 1 0 20 1 8 MGRH12A PA3Z 50Hz 380 415V 3Ph 342V 456V 8 6 8 9 15 44 6 9 0 20 1 8 MGRH14A PA3Z 50Hz 380 415V 3Ph 342V...

Page 20: ...7 60 1 58 4 80 7 07 1 63 4 33 6 60 1 68 3 92 6 17 1 74 3 55 5 85 1 82 3 21 5 45 1 91 2 85 Note The inlet outlet water temperature difference is 5 C Heating Note The inlet outlet water temperature dif...

Page 21: ...4 63 9 90 2 37 4 18 9 24 2 44 3 78 8 63 2 52 3 43 8 19 2 65 3 10 7 64 2 78 2 75 Note The inlet outlet water temperature difference is 5 C Heating Note The inlet outlet water temperature difference is...

Page 22: ...19 3 01 5 04 14 15 3 11 4 55 13 20 3 20 4 12 12 33 3 30 3 73 11 71 3 47 3 37 10 91 3 64 3 00 Note The inlet outlet water temperature difference is 5 C Heating Note The inlet outlet water temperature...

Page 23: ...7 02 3 45 4 93 15 85 3 56 4 45 14 78 3 67 4 03 13 81 3 78 3 65 13 11 3 97 3 30 12 22 4 17 2 93 Note The inlet outlet water temperature difference is 5 C Heating Note The inlet outlet water temperature...

Page 24: ...99 3 99 4 77 17 68 4 11 4 30 16 50 4 24 3 89 15 42 4 37 3 53 14 63 4 59 3 19 13 64 4 81 2 83 Note The inlet outlet water temperature difference is 5 C Heating Note The inlet outlet water temperature d...

Page 25: ...63 4 76 20 51 4 77 4 30 19 14 4 92 3 89 17 88 5 07 3 53 16 97 5 33 3 19 15 82 5 59 2 83 Note The inlet outlet water temperature difference is 5 C Heating Note The inlet outlet water temperature diffe...

Page 26: ...ions Water and ethylene glycol solutions used as a thermal vector in the place of water reduce the performance of the unit Multiply the performance figures by the values given in the following table F...

Page 27: ...be charged antifreeze Refers to upper parameters for the charged volume b Fouling Factors The performance data given refer to conditions with clean evaporator plates fouling factor 1 For different fo...

Page 28: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 28 11 Water Pressure Drop MGRH5A PA1Z MGRH7A PA1Z MGRH10A PA1Z Heat exchanger pressure drop water side...

Page 29: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 29 MGRH12A PA3Z MGRH14A PA3Z...

Page 30: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 30 MGRH16A PA3Z...

Page 31: ...e level dB A MGRH5A PA1Z 58 MGRH7A PA1Z 58 MGRH10A PA1Z 59 MGRH12A PA3Z 59 MGRH14A PA3Z 60 MGRH16A PA3Z 60 Note 1 High low air flow of outdoor fan motor 2 It is tested 1 meter away from the machine in...

Page 32: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 32 13 Exploded View MGRH5A PA1Z MGRH7A PA1Z...

Page 33: ...Pipe temp sensor ass y 1 28 1 PFC inductance 1 14 Outlet water pipe ass y 1 28 2 Module board ass y 1 14 1 Water charge valve 1 28 3 Outdoor main control board ass y 1 14 2 Valve electric heater 1 28...

Page 34: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 34 MGRH10A PA1Z...

Page 35: ...ts 12P 1 9 Exhaust valve ass y 1 25 9 Outdoor control board ass y 1 9 1 Exhaust valve 1 26 Right back plate 1 10 Connection pipe ass y 1 27 Inductance Box Ass y 1 11 Base 1 27 1 PFC Inductor 2 12 Fixe...

Page 36: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 36 MGRH12A PA3Z MGRH14A PA3Z MGRH16A PA3Z...

Page 37: ...re CAM MD12GRSZ 5 1 25 9 Outdoor main control board ass y 1 9 Exhaust valve ass y 1 25 10 Wire joint 2p 1 9 1 Exhaust valve 1 25 11 Terminal block 3P 1 10 Connection pipe ass y 1 26 Right back plate 1...

Page 38: ...r mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety 2 Do not touch...

Page 39: ...ar bearing in mind the weight distribution of the unit To lift the unit insert tubes long enough to allow positioning of the lifting slings and safety pins in the feet on the unit To avoid the slings...

Page 40: ...n according to the specifications of the outdoor units Fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong wind 6 0 c m Fix with bolt Single un...

Page 41: ...g drawing of pipeline system For MGRH5A PA1Z MGRH7A PA1Z 9 2 4 1 14 15 11 14 7 16 2 3 10 5 6 T 6 T F 1 1 13 13 8 14 Installer connections WATER OUTLET WATER INLET Factory connections 1 Pressure gauge...

Page 42: ...The manufacturer is not liable for obstruction breakage or noise resulting from the failure to install filters or vibration dampers Particular types of water used for filling or topping up must be tr...

Page 43: ...ure and cause water to discharge from the pressure relief valve thus wasting water If the closed tank is too large when the water temperature drops the system pressure may decrease to a level below th...

Page 44: ...be analyzed before being used such as PH value conductivity concentration of chloride ion concentration of sulfide ion and so on PH 6 8 Total hardness less than 50 ppm Electrical conductivity less tha...

Page 45: ...55 105 68 105 R5 4 G1 2 G1 2 Important a The installation must be filled to a pressure of between 1 and 2 bars b It is recommended that this operation be repeated after the unit has been operating for...

Page 46: ...wer line should be fitted upstream with a suitable device to protect against short circuits and leakage to earth isolating the installation from other equipment Voltage must be within a tolerance of 1...

Page 47: ...al panel inside the unit and connect it to terminals L N and respecting the L phase N neutral and earth in the case of single phase units 220 240V 50Hz 2 MGRH10A PA1Z N L 3 1 2 6 4 5 7 8 GND PUMP2 Rem...

Page 48: ...A B C N Auxiliary Connection 1 MGRH5A PA1Z MGRH7A PA1Z AC CANTACTOR L N 220 240 V 220 240 V L N Addtitiona l pump Reserved 1 2 1 2 L 1 PUMP 2 BOI L ON OFF Switch 1 PUMP2 wiring terminal supplies ON O...

Page 49: ...rolled by the AC contactor b Remote alarm 3 4 Main control board Remote alarm terminal only provides passive switching signal Current passing through the terminal interface should less than 1 5A other...

Page 50: ...se 3 core shielded wire to connect the wired controller and the shielding layer must be grounded When connecting wired controller outdoor unit control panel is mainly used for display which can check...

Page 51: ...ve been carried out as indicated in the manual The water circuit is filled and vented When draining after heat pump operation take care as the water may be hot The water circuit valves are open Electr...

Page 52: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 52 t e s 1 2 3 3 To access the control panel open the door remove the screw 1 and screw 2 lift the door 3...

Page 53: ...us enabling heat exchange to be increased and or decreased maintaining the condensing or evaporation temperature practically constant The fan functions independently of the compressor Frost prevention...

Page 54: ...r after every 3 years of operation Refrigerant gas content The chillers are filled with R410a refrigerant gas and tested in the factory In normal conditions there should be no need for the Technical A...

Page 55: ...rent oils may cause serious damage to the compressor d Shutting down for long periods If it is previewed not to use the machine for long periods After deactivating the chiller Make sure the model is i...

Page 56: ...ill display the setting water temperature When checking will display the result of checking When water heating is broken down or in protection display the error code and protection code Clock icon It...

Page 57: ...status Power on In the standby status press to enter mode choice function Press circularly to choose one kind of power on mode the mode icon will flicker at the moment Press to confirm the power on m...

Page 58: ...g off function will flicker and press to enter timing off setting At this moment the last 2 digits of the nixie tube display 01 which means the first group setting begins Press to the next step By thi...

Page 59: ...DC Inverter Unitary Chiller 50Hz 59 for 3s the unit will close and recovers to factory default mode simultaneously for 3s to unlock 17 1 4 Factory Reset In main interface long press Display panel wil...

Page 60: ...3 1 2 4 16 11 15 5 6 7 8 9 10 11 12 Press for 3sec to cancel timer Press for 3sec to unlock MODE FUNCTIONS Operation icon Code area Setting temperature Timing On Off Function Icon Unit number Water Le...

Page 61: ...s clock Under timing setting displays the setting timing details refer to page 15 of the manual 9 Water temperature Under normal status display water temperature Under water temperature setting status...

Page 62: ...nit and the operation icon on the LCD will disappear Press one time RUN WATER TEM P TIMER ONLINE QUANTIT Y Press for 3sec to cancel timer Press for 3sec to unlock MODE FUNCTIONS b Setting operating mo...

Page 63: ...ODE FUNCTIONS ON Water temperature setting check To check the water temperature setting value press the or key under the main page the page displayed after the controller is powered on c Setting funct...

Page 64: ...of the clock will flash which means the current setting is the hour of Timer 1 Off press the or to adjust press key when finished and then the minute of the clock will flash which means the current s...

Page 65: ...ain page Successfully set the On time of Timer 1 to be 07 10 and O ff time of Timer 1 Off to be 12 30 then back to the main page Finish setting the On time of Timer 1 to be 07 10 and O ff time to be 1...

Page 66: ...ute of the clock press the or to adjust press OK key when finished or wait for 7 seconds to confirm During the setting process pressing the CANCEL key to exit without saving NOTE To get the correct ti...

Page 67: ...unction while connected the wired controller keeps synchronizing with the unit If forcing water pump function is still on going the controller keeping showing its status d The outdoor unit does not re...

Page 68: ...ts 5 Cooling heating temp setting 6 T3 temperature value 7 T4 temperature value 8 Tp temperature Value 9 Tin temp Value Inlet water temperature 10 Tout temp Value Outlet water temperature 11 Tb1 temp...

Page 69: ...GRH7A PA1Z PFC IPM panel 7 9 1 2 11 6 4 3 5 12 10 8 1 Input rectifier bridge port 1 2 Input rectifier bridge port 2 3 PFC inductance port 1 4 P OUT 5 PFC inductance por 2 6 N OUT 7 PFC control port 8...

Page 70: ...xchanger 10 Electric heater of compressor 11 Pump 12 Electric heater of water flow switch 13 4 way valve 14 Additional pump Boil Reserve 15 Transformer input 16 Electronic expansion valve 17 Remote co...

Page 71: ...Aqua Mini Full DC Inverter Unitary Chiller 50Hz 71 DC filter panel 1 2 3 4 5 1 IPM Power supply N 2 IPM Power supply P 3 PFC output power P 4 PFC output power N 5 DC 380V DC fan power supply port...

Page 72: ...ure 1 of plate heat exchanger Tb2 Temperature 2 of plate heat exchanger 3 Radiator temperature sensor port Reserved T6 4 Discharge temperature sensor port 5 1 Outlet of outdoor heat exchanger temperat...

Page 73: ...eat exchanger electric heater 22 Differential pressure valve electric heater port 23 Built in water pump port 24 Compressor electric heater 25 4 way valve port 26 External pump Remote alarm port 27 Tr...

Page 74: ...compressor 5 Power supply port W of the compressor 6 PFC output N 7 PFC output P 8 PFC inductance port L_1 9 PFC inductance port L_2 10 PFC input N 11 IPM input N 12 Communication port to main contro...

Page 75: ...itch 9 Force cooling touch switch 10 Differential pressure valve port 11 Factory debugging port 12 Wired controller port 13 AC Current transformer 14 Remote on off and remote cooling heating port 15 E...

Page 76: ...odule 2 8 3 4 5 6 7 1 1 15V output port 2 communication port to main control board 3 IPM input port N 4 Compressor connection port W 5 Compressor connection port V 6 Compressor connection port U 7 IPM...

Page 77: ...input port L1 4 Power input port N 5 Ground wire 6 Loaded power supply port for main control board 7 Power supply port for main control board 8 Power output port L1 after filtering 9 Power output port...

Page 78: ...ating mode 0 Power off 1 water pump 2 cooling 3 heating 4 force cooling 3 Operating fan speed level 0 Power off 1 7 4 The total required capacity before revised Actual value Force cooling displays 5 5...

Page 79: ...vised Actual value Force cooling displays 5 6 Temperature set Actual setting temperature under cooling or heating mode 7 T3 Actual value Outlet temperature of outdoor heat exchanger 8 T4 Actual value...

Page 80: ...e heat exchanger for 5 7kW P1 High pressure protection The same as 10 16kW P2 Low pressure protection P3 Current protection of the compressor P4 Discharged temperature protection P5 T3 high temperatur...

Page 81: ...for 10 16kW F8 Sensor temperature 2 of plate heat exchangers for 10 16kW PL Reserved for 10 16kW P1 High pressure protection The same as 5 7kW P2 Low pressure protection P3 Current protection of the...

Page 82: ...etween main chip and IPDU LED displays E9 EEPROM malfunction Check whether EEPROM is installed properly Yes NO Installed properly again Replace main PCB LED displays H0 Communication malfunction betwe...

Page 83: ...ngers for 10 16kW F8malfunction Sensor temperature 2 of plate heat exchangers for 10 16kW T3 outlet temperature of outdoor heat exchanger T4 outdoor ambient temperature E5 malfunction Voltage protecti...

Page 84: ...k terminal of DC motor is from 277V to 354V in waiting state YES Check whether the power and voltage of the DC fan motor is normal or not and whether the voltage between white and black terminal of DC...

Page 85: ...h pressure switch YES Check whether the cooling system is normal or not Replace main PCB NO Check whether pressure of the system is too high YES Stop the system NO Whether side air duct of outdoor uni...

Page 86: ...heck whether the outdoor ambient temperature is too low YES Stop the unit NO Whether refrigerant system leaks YES Leakage detecting add nitrogen or refrigerant into the system si si will sound evident...

Page 87: ...ambient temperature is too high YES Stop the unit NO NO Check whether the outdoor unit ventilates well YES Make the outdoor unit ventilates well NO Whether the heat exchanger needs cleaning or not YES...

Page 88: ...f the compressor Check whether the discharged temperature of the compressor is higher than 115 C NO Check whether the compressor discharged temperature sensor connects with PCB correctly according to...

Page 89: ...denser temperature is higher than 62 degrees NO Check whether the resistance of condenser temperature sensor is correct YES Replace the outdoor main PCB NO Replace the temperature sensor YES Whether o...

Page 90: ...before entering bridge rectifier If wire body terminal is connected firmly NO Connect wire correctly YES Check if wiring connection between DC filter and IPM module is fasten or not YES Check whether...

Page 91: ...wind blows outdoor unit or two outdoor units blows each other NO Check whether the fan motor is damaged YES Replace outdoor fan motor NO Replace the outdoor main PCB LED displays CH CL CP PH Protectio...

Page 92: ...door water inlet temperature and plate heat exchanger temperature is less than 5 the unit enter heating mode in force Compressor works too This is normal LED displays Pb Anti freeze protection The act...

Page 93: ...pipe is too long and not connected to water pump NO YES To configure external water pump Whether water system is stuck Repair the leaks and add the water again YES Wash or replace the stuck component...

Page 94: ...DC Inverter Unitary Chiller 50Hz 94 19 Optional Accessories No Name Specification Remark 1 Wired controller KJR 120F BMK E with Midea logo Customized 2 Wired controller KJR 120F1 BMK E without Midea l...

Page 95: ...Full DC Inverter Unitary Chiller 50Hz 95 Appendix Accessories Item Name of accessory Qty Shape 1 Installation and operation manual 1 2 Rubber sealed ring 2 3 Outlet connection pipe 1 4 Straight screw...

Page 96: ...34 6 68355 74 1 43498 114 0 42304 5 46 5725 35 6 40021 75 1 38703 115 0 41164 4 44 36 6 13059 76 1 34105 116 0 4006 3 41 5878 37 5 87359 77 1 29078 117 0 38991 2 39 8239 38 5 62961 78 1 25423 118 0 3...

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