Midea MGRH5A-PA1Z User Manual [ru]

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Midea R410A 50Hz

Aqua Mini

Full DC Inverter Unitary Chiller

DM16-01.01.24en

Applicable Model:

MGRH5A-PA1Z MGRH7A-PA1Z

MGRH10A-PA1Z MGRH12A-PA3Z MGRH14A-PA3Z MGRH16A-PA3Z

Midea reserves the right to discontinue, or change specification or designs at any time without notices and

without incurring obligations.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Content

1. Outdoor units lineup .......................................................... 2

Features .............................................................................. 4

Description of main components .................................... 8

Specifications .................................................................. 10

Dimensions ...................................................................... 14

Piping Diagram ................................................................ 15

Wiring Diagram ............................................................... 16

Electric Characteristics .................................................. 19

Capacity Tables ............................................................. 20

Operation Limits ............................................................ 26

10.

Water Pressure Drop .................................................... 28

11.

Sound Level ................................................................... 31

12.

Exploded View .............................................................. 32

13.

Installation .................................................................... 38

14.

Checking and Starting Up the Unit ............................. 51

15.

Running and Maintenance .......................................... 53

16.

Controller ....................................................................... 56

17.

Troubleshooting ............................................................. 69

18.

Optional Accessories ................................................... 94

19.

※ Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices

and with

out incurring obligations.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

1. Outdoor units lineup

MGRH5A-PA1Z, MGRH7A-PA1Z

Model

MGRH5A-PA1Z

MGRH7A-PA1Z

Power Supply

(V/Ph/Hz)

220-240/1 /50 5.0kW DC Inverter Plate type Heat pump Built-in R410A

220-240/1/50 7.0kW DC Inverter Plate type Heat pump Built-in R410A

Capacity

Compressor

type

Heat

exchanger

A/C mode

Hydraulic module

Refrigerant

Model

MGRH10A-PA1Z

MGRH12A-PA3Z

MGRH14A-PA3Z

MGRH16A-PA3Z

MGRH10A-PA1Z,MGRH12A-PA3Z

MGRH14A-PA3Z, MGRH16A-PA3Z

Power Supply

(V/Ph/Hz)

220-240/1/50 10.0 DC Inverter Plate type Heat pump Built-in R410A 380-415/3/50 11.2 DC Inverter Plate type Heat pump Built-in R410A 380-415/3/50 12.5 DC Inverter Plate type Heat pump Built-in R410A 380-415/3/50 14.5 DC Inverter Plate type Heat pump Built-in R410A

Capacity

Compressor

type

Heat

exchanger

A/C mode

Hydraulic module

Refrigerant

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

2.Features

2.1 High efficient DC inverter compressor

Full DC inverter mini chiller adopts highly intelligent inverter-driven compressor enables the output of the out

door unit to be modulated by the real heat load demands..

. This advanced technology

This advanced system ensures precise temperature regulation and highly efficient energy usage, making a significant contribution to limiting the impact on the environment.

Highly Efficient DC Motor:

- Creative motor core design

- High density neodymium magnet

- Concentrated type stator

-Wider operating frequency range

Better balance and Extremely Low Vibration:

- Twin eccentric cams

- 2 balance weights

Highly Stable Moving Parts:

- Optimal material matching rollers and vanes

Compressor

(Twin Rotary) structure

-Optimize compressor drive technology

- Highly robust bearings

-Compact structure

2.2 High performance heat exchanger

The new designed window fins enlarge the heat-exchanging area, which decrease the air resistance, save more power and enhance heat exchan

ge performance.

Hydrophilic film fins and inner-threaded copper pipes optimize heat

New design Original design

High efficiency inner-thread pipe, enhance heat transfer.

exchange efficiency.

2.3 Low-operating sound design

Optimally design fan shape and new designed discharge air grille and air deflector, making higher air volume and reduces running noise..

Air deflector

New grille

New fan

2.4 High efficiency

EER

3.5

0.5

3.23

5kW 7kW 10kW 12kW 14kW 16kW

COP

3.5

3.24

3.11

3.2

3.39

3.5

3.31

3.21

3.25

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

3.20

3.30

2.5

1.5

0.5

5kW 7kW 10kW 12kW 14kW 1 6kW

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 MODE

-5°C

46°C

HEATING MODE

-15°C

-20

-10

0 10203040

27°C

°C(D.B.)

Outdoor temp.

2.6 Energy saving and high reliability

By adopting high efficiency plate heat exchanger, the energy consumption can be reduced.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

a. Metallic protective cabinet with rustproof polyester paint; b. Built-in with voltage protection, current protection, anti-freezing protection, water flow protection and

etc., effectively guarantee the system to work safely.

2.7 User friendly remote control

Switch SW4_1(10kW) or SW3_1(12-16kW) on the PCB to ON to enable the following remote control

functions. The setting is not default at factory.

 Remote shut down  Remote cooling and heating

Note: When all controller controls together, the unit will work according to the last order.

5/7kW will be available soon.

2.8 Flexible and convenient control

 Built-in electronic controller at factory.

Compact devices 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 control panel is mainly used for display which can check parameters and inquiry, and can’t be used to set mode and temperature.

 Built-in water pressure gauge. Inspect the water pressure all the time.

2.9 Integrated and compact design

Fully integrated and built-in hydraulic module, such as expansion tank, plate type of heat exchanger,

water circulating pump, etc. It saves installation space and cost.

2.10 EXV control flow more precisely

Patented liquid distribution components to maximize performance and minimize defrost impact. Stable and accurate gas flow control. EXV achieves 500 pulses to adjust flow precisely. Ensure the temperature-control precisely and steadily to provide a comfortable environment.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Fast respond resulting in higher efficiency and improved reliability.

100%

95% 90% 85% 80% 75%

70% 65% 60% 55% 50% 45% 40% 35% 30% 25% 20% 15%

10%

2.11 Water pump starts/stops compulsory function

Press “Check” button for 3 seconds to start the water pump operating when the unit is standby. Press “Check” button for 3 seconds again to stop the water pump.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

3. Description of main components

Structure

Panels and base are made from galvanized steel plate painted with epoxy power to ensure total resistance to atmospheric pollution, conde

Condenser coils:

The coils are made from high performance and seamless copper tuber and high surface area aluminum fins to ensure optimum heat exchange capability. Condenser coil protection grill is standard.

Fan motor:

To achieve high efficiency heat exchange, the unit is equipment with the high performance axial-flow fans. The fan is driven directly by weather proof motor to ensure reliable operation, the fan motor is six-pole electric motor with built-in thermal cut-out.

Evaporator:

The heat exchanger is made 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 closed cell rubber foam to give optimum thermal insulation.

Hydraulic module:

It is fully integrated and equipped with key hydraulic components such as expansion tank, plate type of heat-exchanger, water circulating pump.

The water pressure difference switch is provided in the units to protect against damage to the water pump.

Power and control electrical panel

Power and control electrical panel constructed in accordance with IEC 204-1/EN60335-2-40, complete with compressor contactor, control via control panel.

nsate collection pan as standard.

11 12

1 Electrical p

anel 2 Display panel 3 Plate heat exchanger 4 4-way valve 5 High pressure switch 6 Low pressure switch 7 Water Pump 8 Accumulator 9 Water flow switch 10 Compressor 11 Condenser 12 Expansion tank 13 Axial-flow fan

2 3

4 5

6 7

9 10

5/7KW

3 4

5 6

8 9

10~16KW

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

12 13

14 15

16 17

1 Operation panel

Water manometer

3 Automatic discharge valve

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 High pressure switc 13 4-ways valve 14 Expansion tank 15 Pump 16 Low pressure switch 17 Storage tank 18 Compressor 19 Water supply valve

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

4. Specifications

Model Power supply V-Ph-Hz

Cooling*(1)

Cooling*(2)

Heating*(3)

Heating*(4) EER*(1) kW/kW 3.23 3.11

EER*(2) kW/kW 5.16 4.28 Max. input consumption kW 2.8 3.0 Max. input current A 14.6 15.6

Compressor

Outdoor fan motor

Outdoor coil

Water pump

Outdoor air flow m3/h 5100 5100 Throttle EXV+capillary EXV+capillary Outdoor noise level (sound pressure)*(3) dB(A) 58 58 Water flo The plate heat-exchanger water pressure

drop The Max. and Min. water inlet pressure kPa

Outdoor unit

Refrigerant Connection

wiring Pipe

diameter Control Wired controlle

Ambient temperature ℃ Cooling: -5℃~46℃; Heating: -15-27℃(Antifreeze must be added below 5℃) Water outlet temperature range ℃ Cooling: 4~20 ℃; Heating: 30~55 ℃

Capacity kW 5.0 7.0 Input kW 1.55 2.25 Capacity kW 6.57 7.88 Input kW 1.27 1.84 Capacity kW 5.5 8.0 Input kW 1.7 2.5 Capacity kW 6.32 8.29 Input kW 1.52 2.13

Model SNB172FJGMC SNB172FJGMC Type ROTARY ROTARY Brand Mitsubishi Electric Mitsubishi Electric Capacity kW 5.46 5.46 Input kW 1.64 1.64 Rated load current A 8.1 8.1 Locked rotor Amp A 29.5 29.5 Thermal protector Refrigerant oil ml FV50S,400 FV50S,400 Model Type Brand Input Speed Number of rows 22 Tube pitch(a)× row pitch(b) mm Fin spacing mm 1.6 1.6 Fin type Hydrophilic aluminum foil Hydrophilic aluminum foil

Tube outside dia. and type mm Coil length ×height mm 885×880 885×880

Number of circuits 66 Type RS15/6-3-WILO RS15/6-3-WILO Input (H/M/L) W 93/67/46 93/67/46 Pumping head m 5.5 5.5

Net dimension (W×H×D) mm 990×966×354 990×966×354 Packing dimension

(W×H×D) Net/ Gross weight kg 81/91 81/91 Type R410A R410A Charged volume kg 2.5 2.5 Power wi Signal wire mm2

Water inlet/outlet inch 1’’ 1’’

e mm

W 170 170

r/min 820 820

/h 0.86 1.20

kPa 15 15

mm 1120×1100×435 1120×1100×435

MGRH5A-PA1Z MGRH7A-PA1Z

220-240, 1, 50 220-240, 1, 50

Inner Inner

WZDK170-38G-1 WZDK170-38G-1

DC Motor DC Motor

NIDEC SHIBAURA NIDEC SHIBAURA

22×19.05 22×19.05

φ7.94 φ7.94

Inner grooved copper tube Inner grooved copper tube

500/150 500/150

3×2.5 3×2.5

3×0.75 3×0.75

Wired controlle

Note: Specifications are bas

ed on the following conditions:

1. Cooling: (*1) chilled water inlet/outlet temperature: 12/7°C,outdoor ambient temperature 35°C DB. (*2) chilled water inlet/outlet temperature: 23/18°C,outdoor ambient temperature 35°C DB.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Packi

(

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: 30/35°C,outdoor ambient temperature 7°C DB/6°C WB .

3. It is tested 1m away in front of the unit in a semi-anechoic room(sound pressure).

4. The above data may be changed without notice for future improvement on quality and performance.

Model Power supply V-Ph-Hz

Cooling*(1)

Cooling*(2)

Heating*(3)

Heating*(4)

Capacity kW 10.0(2.9~10.5) 11.2(3.1~12.0) Input kW 2.95 3.38 Capacity kW 10.9 14.50 Input kW 2.49 2.80 Capacity kW 11.0(3.2~12.0) 12.3(3.3~13.2) Input kW 3.14 3.72 Capacity kW 10.96 13.75 Input kW 2.51 2.85

MGRH10A-PA1Z MGRH12A-PA3Z

220-240, 1, 50 380-415, 3, 50

EER(*1) kW/kW 3.39 3.31 EER(*2) kW/kW 4.39 5.17 Max. input consumption kW 4.8 5.2 Max. input current A 25 8.9

Model ATQ420D1UMU ATQ420D2UMU Type Rotary Rotary Brand GMCC GMCC Capacity kW 13.1 13.0

Compressor

Input kW 3.42 3.45 Rated load current A 6.85 6.9 Locked rotor Amp A 52 44 Thermal protector

Inner Inner

Refrigerant oil ml VG74,1400 VG74,1400

Outdoor fan motor

Model Type Brand Input Speed

W 100 100

r/min 800 800

WZDK100-38G WZDK100-38G

DC Motor DC Motor

Panasonic Panasonic

Number of rows 22 Tube pitch(a)× row pitch(b) mm

22×19.05 22×19.05

Fin spacing mm 1.6 1.6

Outdoor coil

Fin type Hydrophilic aluminum foil Tube outside dia. and type mm

φ7.94 φ7.94

Inner grooved copper tube

Coil length ×height mm 1276×870 1276×870 Number of circuits 77 Type RL25/8.5 RL25/8.5

Water pump

Input (H/M/L) W 210/175/120 210/175/120

Pumping head m 8 8 Outdoor air flow m3/h 7000 7000 Throttle EXV EXV Outdoor noise level (sound pressure)*(3) dB(A) 59 59 Water flo The plate heat-exchanger water pressure

drop The Max. and Min. water inlet pressure kPa

/h 1.72 1.92

kPa 18 18

500/150 500/150

Net dimension (W×H×D) mm 970×1327×400 970×1327×400 Outdoor

unit

W×H×D)

mension

mm 1082×1456×435 1082×1456×435

Net/ Gross weight kg 110/121 110/121

Type R410A R410A Refrigerant

Connection wiring

Pipe diameter

Control Wired controlle

Charged volume kg 2.8 2.8

Power wi

e mm

Signal wire mm2

3×4.0 5×3.0

3×0.75 3×0.75

Water inlet/outlet inch 1-1/4” 1-1/4”

Wired controlle

Ambient temperature ℃ Cooling: -5℃~46℃; Heating: -15-27℃(Antifreeze must be added below 5℃) Water outlet temperature range ℃ Cooling: 4~20 ℃; Heating: 30~55 ℃

Note: Specifications are based on the follo

wing conditions:

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Packi

(

1. Cooling: (*1) chilled water inlet/outlet temperature: 12/7°C,outdoor ambient temperature 35°C DB. (*2) chilled water inlet/outlet 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: 30/35°C,outdoor ambient temperature 7°C DB/6°C WB .

3. It is tested 1m away in front of the unit in a semi-anechoic room(sound pressure).

4. The above data may be changed without notice for future improvement on quality and performance.

Model Power supply V-Ph-Hz

Cooling*(1)

Cooling*(2)

Heating*(3)

Heating*(4)

Capacity kW 12.5(3.3~14.0) 14.5(3.5~15.5) Input kW 3.9 4.53 Capacity kW 15.17 16.70 Input kW 3.13 3.73 Capacity kW 13.8(3.5~15.4) 16.0(3.7~17.0) Input kW 4.25 4.85 Capacity kW 15.30 16.97 Input kW 3.15 3.86

MGRH14A-PA3Z MGRH16A-PA3Z

380-415, 3, 50 380-415, 3, 50

EER(*1) kW/kW 3.2 3.2 EER(*2) kW/kW 4.84 4.48 Max. input consumption kW 5.6 5.9 Max. input current A 9.6 10.1

Model ATQ420D2UMU ATQ420D2UMU Type Rotary Rotary Brand GMCC GMCC Capacity kW 13.0 13.0

Compressor

Input kW 3.45 3.45 Rated load current 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 Type Brand Input Speed

W 100 100

r/min 800 800

WZDK100-38G WZDK100-38G

DC Motor DC Motor

Panasonic Panasonic

Number of rows 22 Tube pitch(a)× row pitch(b) mm

22×19.05 22×19.05

Fin spacing mm 1.6 1.6

Outdoor coil

Fin type Hydrophilic aluminum foil Tube outside dia. and type mm

φ7.94 φ7.94

Inner grooved copper tube

Coil length ×height mm 1276×870 1276×870 Number of circuits 77 Type RL25/8.5 RL25/8.5

Water pump

Input (H/M/L) W 210/175/120 210/175/120

Pumping head m 8 8 Outdoor air flow m3/h 7000 7000 Throttle EXV EXV Outdoor noise level (sound pressure)*(3) dB(A) 60 60 Water flo The plate heat-exchanger water pressure

drop The Max. and Min. water inlet pressure kPa

/h 2.15 2.49

kPa 18 19

500/150 500/150

Net dimension (W×H×D) mm 970×1327×400 970×1327×400 Outdoor

unit

W×H×D)

mension

mm 1082×1456×435 1082×1456×435

Net/ Gross weight kg 111/122 111/122 Refrigerant

Connection wiring

Pipe diameter

Control Wired controlle

Type R410A R410A

Charged volume kg 2.9 3.2

Power wi

e mm

Signal wire mm2

5×3.0 5×3.0

3×0.75 3×0.75

Water inlet/outlet inch 1-1/4’’ 1-1/4’’

Wired controlle

Ambient temperature ℃ Cooling: -5℃~46℃; Heating: -15-27℃(Antifreeze must be added below 5℃) Water outlet temperature range ℃ Cooling: 4~20 ℃; Heating: 30~55 ℃

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Note: Specifications are based on the following conditions:

1. Cooling: (*1) chilled water inlet/outlet temperature: 12/7°C,outdoor ambient temperature 35°C DB. (*2) chilled water inlet/outlet 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: 30/35°C,outdoor ambient temperature 7°C DB/6°C WB .

3. It is tested 1m away in front of the unit in a semi-anechoic room(sound pressure).

4. The above data may be changed without notice for future improvement on quality and performance.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

5. Dimensions

MGRH5A-PA1Z, MGRH7A-PA1Z (Unit: mm)

354

966

990

366

624

MGRH10A-PA1Z, MGRH12A-PA3Z, MGRH14A-PA3Z, MGRH16A-PA3Z (Unit : mm)

1327

900

970

348

320

600

360

400

6. Piping Diagram

MGRH5A-PA1Z, MGRH7A-PA1Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

HEAT PUMP

1 compressor 2 high pressure switch 3 4-way v alue(only HEAP PUMP) 4 condenser 5 filter

6 electronic expansive valve 7 liquid receiver 8 plate heat exchanger 9 frost heater

10 water temperature sensor

MGRH10A-PA1Z,MGRH12A-PA3Z, MGRH14A-PA3Z, MGRH16A-PA3Z

11 accumulator 12 low pressure switch 13 crankcase heater

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 Differential Pressure Switch 10 High Pressure Switch 11 Low Pressure Switch 12 Discharge Gas thermistor 13 thermistor For Outdoor Temperature 14 Thermistor For Evaporation In Heating

(Thermistor For Condenser In Cooling) 15 Thermistor For Plate Heat Exchange 1 16 Thermistor For Plate Heat Exchange 2

Cooling Heating

17 Thermistor For Water Outlet 18 Thermistor For Water Inlet 19 Automatic Discharge Valve 20 Expansion Tank 21 Circulating Pump 22 Pressure Gauge 23 Safety Valve 24 Auto-watet replenishing

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

7. Wiring Diagram

MGRH5A-PA1Z, MGRH7A-PA1Z

MGRH10A-PA1Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH12A-PA3Z,MGRH14A-PA3Z,

MGRH16A-PA3Z

8. Electric Characteristics

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Model

MGRH5A-PA1Z MGRH7A-PA1Z

MGRH10A-PA1Z MGRH12A-PA3Z MGRH14A-PA3Z MGRH16A-PA3Z

Remark:

MCA: Min. Current Amps. (A) TOCA: Total Over-current Amps. (A) MFA: Max. Fuse Amps. (A) MSC: Max. Starting Amps. (A) RLA: Rated Current Amps. (A) OFM: Outdoor Fan Motor FLA: Full Load Amps. (A) kW: Rated Motor Output (kW)

Hz Voltage Phase Min. Max. MCA TOCA MFA MSC RLA kW FLA 50Hz 220~240V 1Ph 198V 264V 10.1 14.6 20 29.5 8.1 0.195 1.65 50Hz 220~240V 1Ph 198V 264V 10.1 15.6 20 29.5 8.1 0.195 1.65 50Hz 220~240V 1Ph 198V 264V 15.1 25.0 30 52 12.1 0.20 1.8 50Hz 380~415V 3Ph 342V 456V 8.6 8.9 15 44 6.9 0.20 1.8 50Hz 380~415V 3Ph 342V 456V 8.6 9.6 15 44 6.9 0.20 1.8 50Hz 380~415V 3Ph 342V 456V 8.6 10.1 15 44 6.9 0.20 1.8

Outdoor Unit Power Supply Compressor OFM

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

9. Capacity Tables

MGRH5A-PA1Z

Cooling

Chilled water outlet temp.

21.00 25.00 30.00 35.00 40.00 46.00

Capacity

Power

EER

Capacity

Ambient temp.(℃)

EER

Capacity

Power

EER

Power

Capacity

EER

Capacity

Power

EER

Power

Capacity

Power

EER

(℃)

5.00 5.60 1.37 4.10 5.27 1.41 3.75 4.97 1.45 3.43 4.70 1.50 3.14 4.40 1.57 2.80 4.05 1.65 2.46

6.00 5.79 1.39 4.17 5.44 1.43 3.81 5.13 1.47 3.48 4.85 1.52 3.19 4.54 1.59 2.85 4.19 1.67 2.50

7.00 5.99 1.41 4.23 5.63 1.46 3.86 5.30 1.50 3.53 5.00 1.55 3.23 4.70 1.63 2.88 4.33 1.71 2.53

8.00 6.17 1.46 4.24 5.80 1.50 3.86 5.45 1.55 3.52 5.14 1.60 3.22 4.83 1.68 2.88 4.46 1.76 2.53

9.00 6.35 1.47 4.31 5.95 1.52 3.93 5.60 1.56 3.58 5.27 1.61 3.27 4.96 1.69 2.93 4.58 1.78 2.58

10.00 6.59 1.49 4.41 6.17 1.54 4.01 5.80 1.59 3.65 5.45 1.64 3.33 5.14 1.72 2.99 4.75 1.80 2.63

11.00 6.77 1.51 4.49 6.34 1.55 4.08 5.95 1.60 3.71 5.59 1.65 3.38 5.27 1.73 3.04 4.88 1.82 2.68

12.00 6.93 1.53 4.53 6.48 1.58 4.11 6.07 1.63 3.73 5.70 1.68 3.40 5.38 1.76 3.06 4.99 1.85 2.70

13.00 7.05 1.54 4.57 6.59 1.59 4.14 6.17 1.64 3.76 5.79 1.69 3.43 5.47 1.77 3.08 5.08 1.86 2.72

14.00 7.23 1.55 4.65 6.75 1.60 4.21 6.31 1.65 3.82 5.92 1.70 3.48 5.60 1.79 3.13 5.20 1.88 2.77

15.00 7.32 1.56 4.69 6.83 1.61 4.24 6.38 1.66 3.85 5.97 1.71 3.49 5.66 1.80 3.15 5.26 1.89 2.79

16.00 7.50 1.58 4.76 6.99 1.63 4.30 6.53 1.68 3.90 6.11 1.73 3.54 5.79 1.81 3.19 5.39 1.90 2.83

17.00 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

kW kW W/W kW kW

Note: The inlet/outlet w

ater temperature difference is 5°C.

kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Heating

Ambient temp.(℃)

Hot water outlet temp.

-10 -6 -2 2 7 10 13

Capacity

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

COP

Capacity

Power

COP

(℃) kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W

40.00 3.41 1.06 3.21 4.26 1.21 3.53 5.02 1.34 3.74 5.58 1.46 3.82 6.06 1.54 3.94 6.79 1.63 4.17 7.81 1.76 4.44

41.00 3.30 1.09 3.04 4.13 1.23 3.35 4.87 1.37 3.55 5.42 1.49 3.64 5.89 1.57 3.76 6.59 1.66 3.97 7.57 1.80 4.21

42.00 3.21 1.11 2.90 4.02 1.26 3.19 4.74 1.40 3.39 5.28 1.52 3.47 5.75 1.60 3.59 6.42 1.70 3.78 7.36 1.83 4.02

43.00 3.13 1.13 2.77 3.93 1.28 3.06 4.64 1.43 3.25 5.17 1.55 3.33 5.64 1.63 3.45 6.28 1.73 3.63 7.19 1.87 3.84

44.00 3.07 1.15 2.66 3.86 1.31 2.94 4.56 1.46 3.13 5.09 1.58 3.21 5.56 1.67 3.33 6.18 1.77 3.50 7.05 1.91 3.70

45.00 3.03 1.18 2.57 3.81 1.34 2.85 4.50 1.49 3.03 5.03 1.62 3.12 5.50 1.70 3.24 6.11 1.80 3.39 6.96 1.95 3.58

46.00 2.97 1.19 2.50 3.74 1.35 2.77 4.43 1.50 2.95 4.95 1.63 3.04 5.42 1.72 3.16 6.00 1.82 3.30 6.83 1.97 3.48

47.00 2.88 1.21 2.37 3.63 1.38 2.64 4.31 1.53 2.81 4.82 1.66 2.90 5.28 1.75 3.02 5.84 1.86 3.15 6.64 2.00 3.31

48.00 2.77 1.25 2.21 3.49 1.42 2.46 4.15 1.58 2.63 4.65 1.71 2.71 5.10 1.80 2.83 5.63 1.91 2.94 6.38 2.07 3.09

49.00 2.61 1.30 2.01 3.31 1.48 2.24 3.93 1.64 2.40 4.41 1.78 2.48 4.84 1.88 2.58 5.34 1.99 2.68 6.04 2.15 2.81

50.00 2.45 1.36 1.79 3.10 1.55 2.00 3.69 1.72 2.14 4.14 1.87 2.21 4.55 1.97 2.31 5.01 2.09 2.40 5.66 2.26 2.51

Note: The inlet/outlet w

ater temperature difference is 5°C.

Chilled water outlet temp.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH7A-PA1Z Cooling

Ambient temp.(℃)

21.00 25.00 30.00 35.00 40.00 46.00

Capacity

Power

EER

Capacity

EER

Capacity

Power

EER

Power

Capacity

EER

Capacity

Power

EER

Power

Capacity

Power

EER

(℃)

5.00 7.84 1.98 3.95 7.38 2.04 3.61 6.96 2.11 3.31 6.58 2.17 3.03 6.17 2.28 2.70 5.67 2.39 2.37

6.00 8.10 2.01 4.03 7.62 2.07 3.67 7.18 2.14 3.36 6.78 2.21 3.08 6.36 2.32 2.75 5.86 2.43 2.41

7.00 8.38 2.05 4.08 7.88 2.12 3.72 7.42 2.18 3.40 7.00 2.25 3.11 6.57 2.36 2.78 6.06 2.48 2.44

8.00 8.64 2.12 4.09 8.12 2.18 3.72 7.63 2.25 3.40 7.20 2.32 3.11 6.76 2.43 2.78 6.24 2.56 2.44

9.00 8.89 2.14 4.16 8.34 2.20 3.79 7.84 2.27 3.45 7.38 2.34 3.15 6.94 2.46 2.83 6.42 2.58 2.49

10.00 9.22 2.17 4.26 8.64 2.23 3.87 8.12 2.30 3.52 7.64 2.38 3.22 7.19 2.49 2.88 6.65 2.62 2.54

11.00 9.48 2.19 4.33 8.88 2.26 3.93 8.33 2.33 3.58 7.83 2.40 3.26 7.38 2.52 2.93 6.83 2.64 2.58

12.00 9.70 2.22 4.37 9.07 2.29 3.96 8.50 2.36 3.60 7.98 2.43 3.28 7.54 2.56 2.95 6.99 2.68 2.60

13.00 9.87 2.24 4.41 9.23 2.31 4.00 8.64 2.38 3.63 8.10 2.45 3.30 7.66 2.58 2.97 7.11 2.70 2.63

14.00 10.12 2.25 4.49 9.45 2.32 4.06 8.84 2.40 3.69 8.28 2.47 3.35 7.83 2.59 3.02 7.28 2.72 2.67

15.00 10.25 2.27 4.52 9.56 2.34 4.09 8.93 2.41 3.71 8.36 2.48 3.37 7.92 2.61 3.04 7.37 2.74 2.69

16.00 10.50 2.29 4.59 9.79 2.36 4.15 9.14 2.43 3.76 8.55 2.51 3.41 8.10 2.63 3.08 7.54 2.76 2.73

17.00 10.64 2.30 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

kW kW W/W kW kW

kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Note: The inlet/outlet water temperature difference is 5°C.

Heating

Ambient temp.(℃)

Hot water outlet temp.

(℃) kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W

40.00 4.96 1.56 3.17 6.20 1.78 3.49 7.30 1.98 3.70 8.11 2.15 3.78 8.81 2.26 3.90 9.87 2.40 4.12 11.35 2.59 4.39

41.00 4.81 1.60 3.01 6.01 1.81 3.32 7.08 2.02 3.51 7.88 2.19 3.60 8.57 2.31 3.72 9.59 2.44 3.92 11.00 2.64 4.17

42.00 4.67 1.63 2.87 5.85 1.85 3.16 6.90 2.06 3.35 7.68 2.24 3.44 8.37 2.35 3.56 9.34 2.49 3.74 10.70 2.69 3.97

43.00 4.55 1.66 2.74 5.71 1.89 3.03 6.75 2.10 3.21 7.52 2.28 3.30 8.20 2.40 3.42 9.14 2.55 3.59 10.45 2.75 3.80

44.00 4.47 1.70 2.63 5.61 1.93 2.91 6.63 2.14 3.10 7.40 2.33 3.18 8.08 2.45 3.30 8.98 2.60 3.46 10.26 2.80 3.66

45.00 4.40 1.73 2.54 5.54 1.97 2.82 6.55 2.19 3.00 7.32 2.38 3.08 8.00 2.50 3.20 8.88 2.65 3.35 10.12 2.86 3.54

46.00 4.31 1.75 2.47 5.43 1.99 2.74 6.44 2.21 2.92 7.20 2.40 3.00 7.88 2.53 3.12 8.73 2.68 3.26 9.94 2.89 3.44

47.00 4.19 1.78 2.35 5.28 2.03 2.61 6.26 2.25 2.78 7.01 2.45 2.87 7.68 2.58 2.98 8.50 2.73 3.11 9.65 2.95 3.27

48.00 4.02 1.84 2.19 5.08 2.09 2.43 6.03 2.32 2.60 6.76 2.52 2.68 7.41 2.65 2.79 8.19 2.81 2.91 9.28 3.04 3.06

49.00 3.80 1.91 1.99 4.81 2.17 2.22 5.72 2.41 2.37 6.42 2.62 2.45 7.04 2.76 2.55 7.76 2.92 2.65 8.79 3.16 2.78

50.00 3.56 2.01 1.77 4.50 2.28 1.98 5.36 2.53 2.12 6.02 2.75 2.19 6.62 2.90 2.29 7.28 3.07 2.37 8.23 3.32 2.48

-10 -6 -2 2 7 10 13

Capacity

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

COP

Capacity

Power

COP

Note: The inlet/outlet water temperature difference is 5°C.

Chilled water outlet temp.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH10A-PA1Z Cooling

Ambient temp.(℃)

21.00 25.00 30.00 35.00 40.00 46.00

Capacity

Power

EER

Capacity

EER

Capacity

Power

EER

Power

Capacity

EER

Capacity

Power

EER

Power

Capacity

Power

EER

(℃)

5.00 11.20 2.60 4.31 10.54 2.68 3.94 9.95 2.76 3.60 9.40 2.85 3.30 8.81 2.99 2.95 8.10 3.14 2.58

6.00 11.57 2.64 4.39 10.89 2.72 4.00 10.26 2.80 3.66 9.69 2.89 3.35 9.09 3.04 2.99 8.37 3.19 2.63

7.00 11.98 2.69 4.45 11.26 2.78 4.06 10.60 2.86 3.70 10.00 2.95 3.39 9.39 3.10 3.03 8.66 3.25 2.66

8.00 12.35 2.77 4.45 11.59 2.86 4.06 10.91 2.95 3.70 10.28 3.04 3.38 9.66 3.19 3.03 8.92 3.35 2.66

9.00 12.70 2.80 4.53 11.91 2.89 4.13 11.19 2.98 3.76 10.54 3.07 3.44 9.92 3.22 3.08 9.16 3.38 2.71

10.00 13.18 2.84 4.64 12.35 2.93 4.22 11.60 3.02 3.84 10.91 3.11 3.50 10.28 3.27 3.14 9.51 3.43 2.77

11.00 13.54 2.87 4.72 12.68 2.96 4.29 11.90 3.05 3.90 11.18 3.14 3.56 10.54 3.30 3.19 9.76 3.47 2.82

12.00 13.85 2.91 4.76 12.96 3.00 4.32 12.15 3.09 3.92 11.41 3.19 3.57 10.77 3.35 3.21 9.98 3.52 2.84

13.00 14.10 2.94 4.80 13.18 3.03 4.36 12.34 3.12 3.96 11.58 3.22 3.60 10.94 3.38 3.24 10.15 3.55 2.86

14.00 14.45 2.96 4.89 13.49 3.05 4.43 12.62 3.14 4.02 11.83 3.24 3.65 11.19 3.40 3.29 10.40 3.57 2.91

15.00 14.64 2.97 4.93 13.66 3.06 4.46 12.76 3.16 4.04 11.95 3.25 3.67 11.32 3.42 3.31 10.52 3.59 2.93

16.00 15.00 3.00 5.00 13.98 3.09 4.52 13.05 3.19 4.09 12.21 3.29 3.72 11.58 3.45 3.35 10.78 3.62 2.97

17.00 15.19 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

kW kW W/W kW kW

kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Note: The inlet/outlet water temperature difference is 5°C.

Heating

Ambient temp.(℃)

Hot water outlet temp.

(℃)

40.00 6.82 1.96 3.47 8.53 2.23 3.82 10.04 2.48 4.05 11.15 2.70 4.14 12.12 2.84 4.27 13.57 3.01 4.51 15.61 3.25 4.80

41.00 6.61 2.00 3.30 8.27 2.28 3.63 9.74 2.53 3.85 10.83 2.75 3.94 11.79 2.90 4.07 13.18 3.07 4.29 15.13 3.32 4.56

42.00 6.42 2.05 3.14 8.04 2.32 3.46 9.48 2.58 3.67 10.56 2.81 3.76 11.50 2.96 3.89 12.84 3.13 4.10 14.71 3.38 4.35

43.00 6.26 2.09 3.00 7.86 2.37 3.31 9.28 2.64 3.52 10.34 2.86 3.61 11.28 3.02 3.74 12.56 3.20 3.93 14.37 3.45 4.16

44.00 6.14 2.13 2.88 7.71 2.42 3.19 9.12 2.69 3.39 10.18 2.92 3.48 11.11 3.08 3.61 12.35 3.26 3.79 14.11 3.52 4.00

45.00 6.05 2.17 2.78 7.61 2.47 3.08 9.01 2.74 3.28 10.07 2.98 3.37 11.00 3.14 3.50 12.21 3.33 3.67 13.92 3.59 3.87

46.00 5.93 2.20 2.70 7.47 2.49 3.00 8.85 2.77 3.19 9.90 3.01 3.29 10.84 3.17 3.42 12.01 3.36 3.57 13.66 3.63 3.76

47.00 5.76 2.24 2.57 7.26 2.54 2.85 8.61 2.83 3.05 9.65 3.07 3.14 10.56 3.23 3.27 11.68 3.43 3.41 13.27 3.70 3.58

48.00 5.53 2.31 2.40 6.98 2.62 2.66 8.29 2.91 2.85 9.30 3.17 2.94 10.19 3.33 3.06 11.25 3.53 3.19 12.76 3.81 3.35

49.00 5.23 2.40 2.18 6.61 2.73 2.43 7.86 3.03 2.60 8.82 3.29 2.68 9.68 3.47 2.79 10.67 3.67 2.91 12.08 3.97 3.05

50.00 4.89 2.52 1.94 6.19 2.86 2.16 7.37 3.18 2.32 8.28 3.46 2.40 9.10 3.64 2.50 10.01 3.86 2.60 11.32 4.17 2.72

-10 -6 -2 2 7 10 13

Capacity

Power

kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

COP

Note: The inlet/outlet water temperature difference is 5°C.

Chilled water outlet temp.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH12A-PA3Z Cooling

Ambient temp.(℃)

21.00 25.00 30.00 35.00 40.00 46.00

Capacity

Power

EER

Capacity

EER

Capacity

Power

EER

Power

Capacity

EER

Capacity

Power

EER

Power

Capacity

Power

EER

(℃)

5.00 12.54 2.98 4.21 11.81 3.07 3.85 11.14 3.16 3.52 10.53 3.26 3.23 9.86 3.42 2.88 9.08 3.60 2.52

6.00 12.96 3.02 4.29 12.19 3.12 3.91 11.49 3.21 3.58 10.85 3.31 3.28 10.18 3.48 2.93 9.38 3.65 2.57

7.00 13.41 3.08 4.35 12.61 3.18 3.96 11.87 3.28 3.62 11.20 3.38 3.31 10.52 3.55 2.96 9.70 3.73 2.60

8.00 13.83 3.18 4.35 12.99 3.28 3.96 12.22 3.38 3.62 11.51 3.48 3.31 10.82 3.66 2.96 9.99 3.84 2.60

9.00 14.22 3.21 4.43 13.34 3.31 4.03 12.54 3.41 3.68 11.80 3.52 3.36 11.11 3.69 3.01 10.26 3.88 2.65

10.00 14.76 3.26 4.53 13.83 3.36 4.12 12.99 3.46 3.75 12.22 3.57 3.42 11.51 3.75 3.07 10.65 3.93 2.71

11.00 15.17 3.29 4.61 14.20 3.39 4.19 13.32 3.49 3.81 12.52 3.60 3.48 11.81 3.78 3.12 10.94 3.97 2.75

12.00 15.52 3.34 4.65 14.52 3.44 4.22 13.60 3.55 3.84 12.77 3.66 3.49 12.06 3.84 3.14 11.18 4.03 2.77

13.00 15.79 3.36 4.70 14.76 3.47 4.26 13.82 3.57 3.87 12.97 3.69 3.52 12.25 3.87 3.17 11.37 4.06 2.80

14.00 16.19 3.39 4.78 15.11 3.49 4.33 14.14 3.60 3.93 13.25 3.71 3.57 12.54 3.90 3.22 11.65 4.09 2.85

15.00 16.39 3.40 4.82 15.29 3.51 4.36 14.29 3.62 3.95 13.38 3.73 3.59 12.67 3.92 3.24 11.79 4.11 2.87

16.00 16.80 3.44 4.89 15.66 3.54 4.42 14.62 3.65 4.00 13.68 3.77 3.63 12.97 3.95 3.28 12.07 4.15 2.91

17.00 17.02 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

kW kW W/W kW kW

kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Note: The inlet/outlet water temperature difference is 5°C.

Heating

Ambient temp.(℃)

Hot water outlet temp.

-10 -6 -2 2 7 10 13

Capacity

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

COP

Capacity

Power

COP

(℃) kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W

40.00 7.63 2.33 3.28 9.54 2.65 3.61 11.22 2.94 3.82 12.47 3.19 3.90 13.55 3.36 4.03 15.18 3.56 4.26 17.46 3.85 4.53

41.00 7.39 2.38 3.11 9.25 2.70 3.43 10.89 3.00 3.63 12.12 3.26 3.72 13.18 3.43 3.84 14.74 3.64 4.05 16.92 3.93 4.31

42.00 7.17 2.42 2.96 8.99 2.75 3.26 10.60 3.06 3.46 11.81 3.33 3.55 12.86 3.50 3.67 14.35 3.71 3.87 16.45 4.01 4.10

43.00 7.00 2.47 2.83 8.78 2.81 3.13 10.37 3.12 3.32 11.56 3.39 3.41 12.61 3.57 3.53 14.05 3.79 3.71 16.07 4.09 3.93

44.00 6.87 2.52 2.72 8.63 2.87 3.01 10.20 3.19 3.20 11.38 3.46 3.29 12.42 3.65 3.41 13.81 3.86 3.57 15.78 4.17 3.78

45.00 6.77 2.58 2.63 8.51 2.93 2.91 10.07 3.25 3.10 11.25 3.53 3.18 12.30 3.72 3.31 13.65 3.94 3.46 15.56 4.26 3.65

46.00 6.63 2.60 2.55 8.36 2.96 2.83 9.90 3.28 3.01 11.07 3.57 3.10 12.12 3.76 3.22 13.42 3.98 3.37 15.28 4.30 3.55

47.00 6.44 2.65 2.43 8.12 3.01 2.69 9.63 3.35 2.88 10.78 3.64 2.96 11.81 3.83 3.08 13.06 4.06 3.22 14.84 4.39 3.38

48.00 6.18 2.73 2.26 7.81 3.10 2.51 9.27 3.45 2.69 10.40 3.75 2.77 11.40 3.95 2.89 12.58 4.18 3.01 14.27 4.52 3.16

49.00 5.85 2.84 2.06 7.39 3.23 2.29 8.79 3.59 2.45 9.87 3.90 2.53 10.83 4.11 2.64 11.93 4.35 2.74 13.51 4.70 2.87

50.00 5.47 2.98 1.83 6.93 3.39 2.04 8.24 3.77 2.19 9.26 4.09 2.26 10.18 4.31 2.36 11.20 4.57 2.45 12.65 4.93 2.56

Note: The inlet/outlet

water temperature difference is 5°C.

Chilled water outlet temp.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Cooling MGRH14A-PA3Z

Ambient temp.(℃)

21.00 25.00 30.00 35.00 40.00 46.00

Capacity

Power

EER

Capacity

EER

Capacity

Power

EER

Power

Capacity

EER

Capacity

Power

EER

Power

Capacity

Power

EER

(℃)

5.00 13.99 3.43 4.07 13.18 3.54 3.72 12.43 3.65 3.41 11.75 3.76 3.12 11.01 3.95 2.79 10.13 4.15 2.44

6.00 14.47 3.49 4.15 13.61 3.60 3.78 12.83 3.71 3.46 12.11 3.82 3.17 11.36 4.01 2.83 10.46 4.21 2.48

7.00 14.97 3.56 4.21 14.07 3.67 3.83 13.25 3.78 3.50 12.50 3.90 3.21 11.74 4.10 2.87 10.82 4.30 2.52

8.00 15.43 3.67 4.21 14.49 3.78 3.83 13.63 3.90 3.50 12.85 4.02 3.20 12.08 4.22 2.86 11.15 4.43 2.52

9.00 15.87 3.70 4.29 14.89 3.82 3.90 13.99 3.93 3.56 13.18 4.06 3.25 12.40 4.26 2.91 11.46 4.47 2.56

10.00 16.47 3.76 4.38 15.44 3.87 3.99 14.50 3.99 3.63 13.64 4.12 3.31 12.85 4.32 2.97 11.88 4.54 2.62

11.00 16.93 3.79 4.46 15.85 3.91 4.05 14.87 4.03 3.69 13.98 4.16 3.36 13.18 4.37 3.02 12.20 4.58 2.66

12.00 17.32 3.85 4.50 16.20 3.97 4.08 15.18 4.09 3.71 14.26 4.22 3.38 13.46 4.43 3.04 12.48 4.65 2.68

13.00 17.63 3.88 4.54 16.47 4.00 4.12 15.43 4.12 3.74 14.47 4.25 3.40 13.67 4.46 3.06 12.69 4.69 2.71

14.00 18.07 3.91 4.62 16.87 4.03 4.19 15.78 4.15 3.80 14.79 4.28 3.45 13.99 4.50 3.11 13.00 4.72 2.75

15.00 18.30 3.93 4.66 17.07 4.05 4.22 15.95 4.17 3.82 14.94 4.30 3.47 14.15 4.52 3.13 13.15 4.74 2.77

16.00 18.75 3.97 4.73 17.48 4.09 4.27 16.32 4.22 3.87 15.27 4.35 3.51 14.47 4.56 3.17 13.47 4.79 2.81

17.00 18.99 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

kW kW W/W kW kW

kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Note: The inlet/outlet water temperature difference is 5°C.

Heating

Ambient temp.(℃)

Hot water outlet temp.

(℃) kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W

40.00 8.56 2.66 3.22 10.70 3.02 3.54 12.59 3.36 3.75 13.99 3.65 3.83 15.20 3.84 3.96 17.03 4.07 4.18 19.58 4.40 4.45

41.00 8.29 2.71 3.05 10.37 3.08 3.36 12.22 3.43 3.57 13.59 3.72 3.65 14.79 3.92 3.77 16.54 4.16 3.98 18.98 4.49 4.23

42.00 8.05 2.77 2.91 10.09 3.15 3.21 11.90 3.50 3.40 13.25 3.80 3.49 14.43 4.00 3.61 16.10 4.24 3.80 18.46 4.58 4.03

43.00 7.86 2.83 2.78 9.86 3.21 3.07 11.64 3.57 3.26 12.97 3.88 3.35 14.15 4.08 3.47 15.76 4.33 3.64 18.03 4.67 3.86

44.00 7.70 2.88 2.67 9.68 3.28 2.95 11.44 3.64 3.14 12.77 3.96 3.23 13.94 4.17 3.35 15.50 4.41 3.51 17.70 4.77 3.71

45.00 7.59 2.94 2.58 9.55 3.34 2.86 11.30 3.71 3.04 12.63 4.04 3.13 13.80 4.25 3.25 15.32 4.51 3.40 17.46 4.87 3.59

46.00 7.44 2.97 2.51 9.37 3.38 2.78 11.11 3.75 2.96 12.42 4.08 3.05 13.59 4.29 3.17 15.06 4.55 3.31 17.14 4.91 3.49

47.00 7.22 3.03 2.38 9.11 3.44 2.64 10.81 3.83 2.82 12.10 4.16 2.91 13.25 4.38 3.03 14.66 4.64 3.16 16.65 5.01 3.32

48.00 6.94 3.12 2.22 8.76 3.55 2.47 10.40 3.94 2.64 11.66 4.28 2.72 12.79 4.51 2.84 14.12 4.78 2.95 16.01 5.16 3.10

49.00 6.56 3.25 2.02 8.29 3.69 2.25 9.86 4.10 2.41 11.07 4.46 2.48 12.15 4.69 2.59 13.39 4.97 2.69 15.16 5.37 2.82

50.00 6.14 3.41 1.80 7.77 3.87 2.01 9.25 4.30 2.15 10.39 4.68 2.22 11.42 4.92 2.32 12.56 5.22 2.41 14.20 5.64 2.52

-10 -6 -2 2 7 10 13

Capacity

Power

Note: The inlet/outlet

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

COP

water temperature difference is 5°C.

Capacity

Power

COP

MGRH16A-PA3Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Cooling

Chilled water outlet temp.

(℃)

5.00 16.23 3.99 4.07 15.29 4.11 3.72 14.42 4.24 3.40 13.63 4.37 3.12 12.77 4.59 2.78 11.75 4.82 2.44

6.00 16.78 4.05 4.14 15.79 4.18 3.78 14.88 4.31 3.46 14.05 4.44 3.16 13.18 4.66 2.83 12.14 4.89 2.48

7.00 17.37 4.13 4.20 16.32 4.26 3.83 15.37 4.39 3.50 14.50 4.53 3.20 13.62 4.76 2.86 12.55 4.99 2.51

8.00 17.90 4.26 4.20 16.81 4.39 3.83 15.82 4.53 3.49 14.91 4.67 3.19 14.01 4.90 2.86 12.93 5.14 2.51

9.00 18.41 4.30 4.28 17.27 4.43 3.90 16.23 4.57 3.55 15.28 4.71 3.24 14.38 4.95 2.91 13.29 5.19 2.56

10.00 19.11 4.36 4.38 17.91 4.50 3.98 16.81 4.64 3.63 15.82 4.78 3.31 14.90 5.02 2.97 13.78 5.27 2.61

11.00 19.64 4.41 4.46 18.39 4.54 4.05 17.25 4.68 3.68 16.21 4.83 3.36 15.29 5.07 3.02 14.16 5.32 2.66

12.00 20.09 4.47 4.49 18.79 4.61 4.08 17.61 4.75 3.71 16.54 4.90 3.38 15.61 5.14 3.03 14.47 5.40 2.68

13.00 20.45 4.51 4.54 19.11 4.65 4.11 17.89 4.79 3.74 16.79 4.94 3.40 15.86 5.19 3.06 14.72 5.45 2.70

14.00 20.96 4.54 4.62 19.57 4.68 4.18 18.30 4.82 3.79 17.15 4.97 3.45 16.23 5.22 3.11 15.08 5.48 2.75

15.00 21.23 4.56 4.65 19.80 4.70 4.21 18.50 4.85 3.82 17.33 5.00 3.47 16.41 5.25 3.13 15.26 5.51 2.77

16.00 21.75 4.61 4.72 20.27 4.75 4.27 18.93 4.90 3.87 17.71 5.05 3.51 16.79 5.30 3.17 15.63 5.57 2.81

17.00 22.03 4.63 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

Capacity

kW kW W/W kW kW

Ambient temp.(℃)

21.00 25.00 30.00 35.00 40.00 46.00

EER

Capacity

Power

Capacity

EER

kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Power

EER

Capacity

EER

Capacity

Power

EER

Power

Capacity

Power

EER

Note: The inlet/outlet water temperature difference is 5°C.

Heating

Ambient temp.(℃)

Hot water outlet temp.

(℃)

40.00 9.93 3.03 3.27 12.41 3.45 3.60 14.60 3.83 3.81 16.22 4.16 3.89 17.63 4.38 4.02 19.74 4.65 4.25 22.71 5.02 4.52

41.00 9.61 3.10 3.10 12.03 3.52 3.42 14.17 3.91 3.62 15.76 4.25 3.71 17.15 4.47 3.83 19.17 4.74 4.04 22.01 5.12 4.30

42.00 9.33 3.16 2.95 11.70 3.59 3.26 13.79 3.99 3.46 15.36 4.34 3.54 16.73 4.56 3.67 18.67 4.84 3.86 21.40 5.23 4.09

43.00 9.11 3.22 2.82 11.43 3.66 3.12 13.49 4.07 3.31 15.04 4.43 3.40 16.40 4.66 3.52 18.27 4.94 3.70 20.90 5.33 3.92

44.00 8.93 3.29 2.71 11.22 3.74 3.00 13.26 4.15 3.19 14.80 4.52 3.28 16.16 4.75 3.40 17.97 5.04 3.57 20.52 5.44 3.77

45.00 8.80 3.36 2.62 11.07 3.82 2.90 13.10 4.24 3.09 14.64 4.61 3.18 16.00 4.85 3.30 17.76 5.14 3.45 20.25 5.55 3.65

46.00 8.63 3.39 2.55 10.87 3.85 2.82 12.88 4.28 3.01 14.40 4.65 3.10 15.76 4.90 3.22 17.46 5.19 3.36 19.87 5.61 3.54

47.00 8.37 3.46 2.42 10.56 3.93 2.69 12.53 4.37 2.87 14.03 4.75 2.96 15.37 5.00 3.08 16.99 5.30 3.21 19.31 5.72 3.38

48.00 8.04 3.56 2.26 10.16 4.05 2.51 12.06 4.50 2.68 13.52 4.89 2.77 14.83 5.15 2.88 16.37 5.46 3.00 18.56 5.89 3.15

49.00 7.61 3.70 2.05 9.62 4.21 2.28 11.43 4.68 2.44 12.83 5.08 2.52 14.09 5.35 2.63 15.52 5.67 2.74 17.57 6.13 2.87

50.00 7.12 3.89 1.83 9.01 4.42 2.04 10.72 4.91 2.18 12.05 5.34 2.26 13.24 5.62 2.36 14.57 5.96 2.45 16.46 6.43 2.56

-10 -6 -2 2 7 10 13

Capacity

Power

kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W kW kW W/W

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

Capacity

COP

Power

COP

Note: The inlet/outlet water temperature difference is 5°C.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

TRIAEDISTUO

10. Operation Limits

COOLING

ERU

REPME

-5

-10 4 5 7 15 20

DELIVERY WATER TEMPERATURE

HEATIN

ERU

REPME

-3

-15

30 45 55

DELIVERY WATER TEMPERATURE

a) Ethylene Glycol Solutions

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.

Freezing point (°C)

0 -5 -10 -15 -20 -25

Percentage of ethylene glycol in weight

0 12% 20% 28% 35% 40%

cPf

cdp

cPf: correction factor of heating/cooling capacity cQ: correction factor of flow rate cdp: correction factor of pressure drop

1 0.98 0.97 0.965 0.96 0.955 1 1.02 1.04 1.075 1.11 1.14 1 1.07 1.11 1.18 1.22 1.24

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Note:

1. During winter leaving the unit unused, please drain water out completely from unit if no anti-freeze were charged into pipeline, or keep power on (at standby or off status) and ensure that water is contained inside of unit.

2. When ambient temperature lower 5 ,℃ running cooling mode must 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 fouling factors, multiply the figures in the performance tables by the coefficient given in the following table.

Fouling factors Evaporator

(m 2 °C/W) f1 fk1 fx1

-5

4.4×10

0.86×10

1.72×10

f1 correction factor of capacity fk1 power input correction factor of compre ssor fx1 correction factor of total power input

-4

- - -

0.96 0.99 0.99

0.93 0.98 0.98

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

11. Water Pressure Drop

MGRH5A-PA1Z, MGRH7A-PA1Z

MGRH10A-PA1Z

Heat exchanger pressure drop (water side) 研发提供

MGRH12A-PA3Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH14A-PA3Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH16A-PA3Z

12. Sound Level

Outdoor Unit

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Micro

1.4m

1.0m

Model Noise level (dB(A))

MGRH5A-PA1Z

MGRH7A-PA1Z

MGRH10A-PA1Z

MGRH12A-PA3Z

MGRH14A-PA3Z

MGRH16A-PA3Z

58 58 59 59 60 60

Note:

1).High/low air flow of outdoor fan motor.

2). It is tested 1 meter away from the machine in a semi-anechoic room (sound pressure).

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

13. Exploded View

MGRH5A-PA1Z MGRH7A-PA1Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

28.4

28.1

No. Part Name Quantity No. Part Name Quantity

1 2 3 4 5 6 7 8 9 10 11 12 13 14

14.1

14.2

14.3

14.4 15

15.1 16

16.1 17

17.1

17.2 18

18.1

18.1.1

18.1.2

18.2

18.3

Welded parts of fixed plate Welded part of support Bearing base Fixed plate of inlet pipe Support bar of check valve Partition ass'y Compressor Compressor electric heater Support ass'y of compressor Base plate parts Drain pipe adapter Hydraulic meter Pipe temp. sensor ass'y Outlet water pipe ass'y Water charge valve Valve electric heater Safety valve Water flow switch Inlet water pipe ass'y Exhaust valve Plate heat exchanger ass'y Heat-exchanger electric heater EXV ass'y Liquid accumulator can Electronic expansion valve 4-way valve ass'y 4-way valve suite 4-way valve Solenoid Pressure controller Meter connector

28.2

28.7

1 19 1 20 1 20.1 1 20.2 1 21 1 22 1 23 1 24 1 25 1 26 1 27 1 28 1 28.1 1 28.2 1 28.3 1 28.4 1 28.5 1 28.6 1 28.7 1 29 1 30 1 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40

28.3

Discharge temp sensor ass'y Liquid receiver ass'y Accumulator cylinder Pressure controller Drain-pipe ass'y of plate heat exchanger Expansion vessel Clamp Shielded pump ass'y DC motor Display cover ass'y Display box ass'y Outdoor unit electric box ass'y PFC inductance Module board ass'y Outdoor main control board ass'y Transformer Wire joint Wire joint,6p Power supply board ass'y of outdoor unit Top cover parts Axial fan assy Front panel Outlet grille ass'y Condenser parts Room temp sensor ass'y Pipe temp.sensor ass'y Front clapboard ass'y Left supporting board Motor bracket Rear net frame Baffle ass'y

28.5

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

28.6

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH10A-P

A1Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

25.6

25.1

25.2

25.3

25.4 25.5

25.7

No. Part Name Quantity No. Part Name Quantity

1 Right-front plate ass'y 1 21 2 Four-way valve parts 1 22

2.1 Four-way valve ass'y 1 23

2.2 Pressure switch 1 24 3 Welded parts of base 1 25 4 Suction pipe ass'y 1 25.1

4.1 Pressure controller 1 25.2 5 Accumulator ass'y 1 25.3 6 Fixed plate ass'y of compressor 1 25.4 7 Compressor 1 25.5 8 EXV ass'y 1 25.6

8.1 Electronic expansion valve 1 25.7

8.2 Expansion valve wire(CAM-MD12GRSZ-5) 1 25.8 9 Exhaust valve ass'y 1 25.9

9.1 Exhaust valve 1 26 10 Connection pipe ass'y 1 27 11 Base 1 27.1 12 Fixed plate of inlet/outlet pipe 1 28 13 Connection pi pe parts of water pump 1 29

13.1 Water charge valve 1 30

13.2 Safety valve 1 31 14 Drain pipe adapter 2 32 15 Water pump 1 33 16 Coaming I 1 34 17 Plate heat exc hanger ass'y 1 35

17.1 Electrical heater of plate heat exchanger 1 36

17.2 Plate heat exchanger 1 37 18 Rubber gasket 1 38 19 Coaming II 1 39 20 Connection pi pe ass'y of differential pressure valve 1 40

Gas-liquid separator Differential pressure switch Hydraulic meter Display box ass'y Outdoor electrical control box ass'y Module board ass'y Radiator Terminal block, 3P Radiator Three phase bridge Transformer Electrolytic capacitor Wire joints,12P Outdoor control board ass'y Right back plate Inductance Box Ass'y PFC Inductor Condenser ass'y Coaming ass'y Bracket ass'y, net Installation plate of expansion tank Top cover ass'y Expansion vessel Rear-left supporting board Motor bracket assembly DC Motor Axial fan Front Panel Net Handle

1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 2 2 1 2 3

20.1 Electrical heater of differential pressure valve 1

25.9

25.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH12A-P

A3Z, MGRH14A-PA3Z, MGRH16A-PA3Z

25.1

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

25.4

25.9

25.2

25.3

25.10

25.11

25.5

25.6

25.8

25.7

No. Part Name Quantity No. Part Name Quantity

Right-front plate ass'y

Four-way valve parts

2.1

Four-way valve ass'y

2.2

Pressure switch

Welded parts of base

Suction pipe ass'y

4.1

Pressure controller

Accumulator ass'y

Fixed plate ass'y of compressor

Compressor

EXV ass'y

8.1

Electronic expansion valve

8.2

Expansion valve wire(CAM-MD12GRSZ-5)

Exhaust valve ass'y

9.1

Exhaust valve

Connection pipe ass'y

Base

Fixed plate of inlet/outlet pipe

Connection pipe parts of water pump

13.1

Water charge valve

13.2

Safety valve

Drain pipe adapter

Water pump

Coaming I

Plate heat exchanger ass'y

17.1

Plate heat exchanger

17.2

Electrical heater of plate heat exchanger

Rubber gasket

Coaming II

Connection pipe ass'y of differential pressure valve

20.1

Electrical heater of differential pressure valve

Gas-liquid separator

1 22 1 23 1 24 1 25 1 25.1 1 25.2 1 25.3 1 25.4 1 25.5 1 25.6 1 25.7 1 25.8 1 25.9 1 25.10 1 25.11 1 26 1 27 1 27.1 1 28 1 29 1 30 2 31 1 32 1 33 1 34 1 35 1 36 1 37 1 38 1 39 1 40

Differential pressure switch Hydraulic meter Display box ass'y Outdoor electrical control box ass'y Inverter module Radiator Three phase bridge Aluminum electrolytic capacitors outdoor unit power supply board Resistance AC contactor Wire joints,14P Outdoor main control board ass'y Wire joint, 2p Terminal block, 3P Right back plate Inductance parts ass'y Reactance Condenser ass'y Coaming ass'y Bracket ass'y, net Installation plate of expansion tank Top cover ass'y Expansion vessel Rear-left supporting board Motor bracket assembly DC Motor Axial fan Front Panel Net Handle

1 1 1 1 1 1 1 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 2 3

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

14. Installation

a) Installation of general information

General warning

1. These units have been designed to chilled and hot water and must be used in applications compatible with their performance characteristics; these appliances are designed for residential or similar applications.

2. Incorrect installation, regulation and maintenance or improper use absolves the manufacturer from all liability, whether contractual or otherwise, for damage to people, animals or things. Only those applications specifically indicated in this list are permitted.

3. Read this manual carefully. All work must be carried out by qualified personnel in conformity with legislation in force in the country concerned.

4. The guarantee is invalidated if the above instructions are not respected and if the unit is started up for the first time without the presence of personnel authorized by the Company (where specified in the supply contract) who should draw up a“ start-up” report.

5. The documentation supplied with the unit must be consigned to the owner who should keep it carefully for future consultation in the event of maintenance or service.

6. All repair or maintenance work must be carried out by the Company’s Technical Service or qualified personnel following the instructions in this manual. The air-conditioner must under no circumstances be modified or tampered with as this may create situations of risk. Failure to observe this condition absolves the manufacturer of all liability for resulting damage.

Fundamental safety rules

When operating equipment involving the use of electricity and water, a number of fundamental safety rules must be observed, namely:

Prohibition

1. This appliance is not intended for use by persons (including children) with reduced physical, sensory or 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 the unit with bare feet or with wet or damp parts of

3. Do not carry out cleaning operations without first disconnecting the system

4. Do not modify safety or regulation devices without authorization and instructions from the manufacturer.

5. Do not pull, detach or twist the electrical cables coming from the unit, even when disconnected from the mains electricity supply.

6. Do not open doors or panels providing access to the internal parts of the unit without first ensuring that the mains switch is in the off position.

7. Do not introduce pointed objects through the air intake and outlet grills.

8. Do not dispose of, abandon or leave within reach of children packaging materials (cardboard, staples, plastic bags, etc.) as they may represent a hazard.

Important

1. The chiller appliances are supplied without the main switch. The power supply to the unit must be disconnected using a suitable main switch that must be supplied and installed by the installer.

2. Respect safety distances between the unit and other equipment or structures. Guarantee adequate space for access to the unit for maintenance and/or service operations.

Power supply: the cross section of the electrical cables must be adequate for the power of the unit and the power supply voltage must correspond with the value indicated on the respective units. All units must be earthed in conformity with legislation in force in the country concerned.

3. Hydraulic connections should be carried out as indicated in the instructions to guarantee correct operation of the unit. Empty the water circuit or add glycol if the unit is not used during the winter.

Handle the unit with the utmost care to avoid damage.

the body.

from the electricity supply.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

b) Installation of outdoor unit

Choice of installation site

Before installing the unit, agree with the customer the site where it will be installed, taking the following points into consideration:

- check that the fixing points are adequate to support the weight of the unit.

- pay scrupulous respect to safety distances between the unit and other equipment or structures to ensure that air entering the unit and discharged by the fans is free to circulate.

Positioning

Before handling the unit, check the capacity of the lifting equipment used, respecting the instructions on the packaging.

To move the unit in the horizontal, make appropriate use of a lift truck or similar, 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 damaging the unit, place protection between the slings and the unit. Position the unit in the site indicated by the customer. Place either a layer of rubber (min. thickness 10 mm) or vibration damper feet (optional) between the base and support surface. Fix the unit, making sure it is level and that there is easy access to hydraulic and electrical components. If the site of installation is exposed to strong winds, fix the unit adequately to the support surface using tie rods if necessary. If a heat pump unit is being installed, make sure the condensate is drained using the drain hose supplied as standard. Prevent leaves, branches or snow from accumulating around the unit. These could reduce the efficiency of the unit.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

c) Installation space (units: mm)

 Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling.  Never hold the inlet of the outdoor unit to prevent it from deforming.  Do not touch the fan with hands or other objects.  Do not lean it more than 45℃, and do not lay it sidelong.

 Make concrete foundation 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.

m c 0

6 >

Fix with bolt

Single unit inst

Parallel conn

allation

ir inlet

ect two units or above

>300

>2000

ect the front with rear sides

>2000 >500 >3000 >3000 >300

>300

(Wall or obstacle)

Air inlet

2000

>600

>300

Maintain channel

>600

Air outlet

All the pictures

in this manual are for explanation purpose onl y. They may be slightly different from the air conditioner you

purchased (depend on model).The actual shape shall prevail.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

d) Hydraulic connection

The choice and installation of components is the responsibility of the installer who should follow good working practice and current legislation. Before connecting the pipes, make sure they do not contain stones, sand, rust, or others which might damage the unit. Construction of a bypass is recommended to enable the pipes to be washed through without having to disconnect the unit (see drain valves). The connection piping should be supported in such a way as to avoid it weighing on the unit. It is recommended that the following devices are installed in the water circuit of the evaporator. A hydraulic safety valve shall be mounted in water system, which should open constantly.

1). Connecting drawing of pipeline system

For MGRH5A-PA1Z & MGRH7A-PA1Z

Factory connections

Installer connections

WATER INLET

WATER OUTLET

For MGRH10A-PA1Z ,MGRH12A-PA3Z, MGRH14A-PA3Z & MGRH16A-PA3Z

Factory Connections

Site Connections

1 Pressure gauge 2 Vibration damper joint 3 Gate valve 4 Calibrating valve 5 Water flow switch 6 Thermometer 7 Pump 8 Safety valve 9 Air vent 10 Expansion tank 11 Mesh filter 12 Auto-water replenishing 13 Temperature sensor 14 Drain/chemical washing valve 15 Plate heat exchanger 16 Additional pump

WATERINLET

1 Plate Heat Exchange

2 Differential Pressure Switch 3 Automatic Discharge Valve 4 ExpansionTank 5 Auto-watet replenishing 6Circulating Pump 7 Pressure Gauge

8 Safety Valve 9Drain/ChemicalWashing Valve 10 Flexible Joint 11 Thermometer 12 Calibrating Valve 13 Y-shapedFilte r 14 Water Flow Switch

WATER OUTLET

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

If the installation requires a useful head higher than that obtained by installing a pump assembly and storage tank, it is recommended that an additional pump is installed on the unit. Provided the additional pump installed inside of unit, the pump must connected close to plate heat exchanger. Provided the pump installed outside of unit, the pump shall be connected at water pipe’s outlet. The pump can be easily installed on the unit by removing the pump connection pipe. Connect to terminal PL,PN on the electric panel.

Important

1) The chillers must be provided with a filling/top-up system connected to the return line and a drain cock in the lowest part of the installation. Installations containing anti-freeze or covered by specific legislation must be fitted with hydraulic disconnections.

2) 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 treated with appropriate treatment systems. For reference values, see the table.

e).Design of the store tank in the system

 kW is the unit for cooling capacity, L is the unit for (G) minimum water flow volume in the formula.

Comfortable type air conditioner G= cooling capacity×2.6L Process type cooling G= cooling capacity×7.4L

 In certain occasion (especially in manufacture cooling process), for conforming the system water

content requirement, it’s necessary to mount a tank equipping with a cut-off baffle at the system to avoid water short-circuit, Please see the following schemes:

Error

eco

endation

Error

Recommendation

f).Chilled water flow

Minimum chilled water flow

The minimum chilled water flow is shown in the below table. If the system flow is less than the minimum unit flow rate, the evaporator flow can be recalculated, as shown

in the diagram.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

For minimum chilled water flow rate

Evaporator

Recirculation

For maximum chilled water flow rate

Evaporator

Recirculation

Maximum chilled water flow

The maximu

m chilled water flow is limited by the permitted pressure drop in the evaporator. It is provided in

the below table. If the system flow is more than the maximum unit flow rate, bypass the evaporator as shown in the diagram

to obtain a lower evaporator flow rate.

Minimum and maximum water flow rates

Item

Model Minimum Maximum

MGRH5A-PA1Z

MGRH7A-PA1Z

MGRH10A-PA1Z

MGRH12A-PA3Z

MGRH14A-PA3Z

MGRH16A-PA3Z

Water flow rate(m

0.77 0.95

1.08 1.32

1.54 1.89

1.72 2.11

1.93 2.36

2.24 2.73

/h)

g). Design of expansion tank

If a closed exp

ansion tank with its filled volume of air is too small, the system pressure will easily exceed the maximum allowable pressure 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 the minimum allowable value and cause trouble in the air vent. Therefore, accurate sizing of a closed expansion tank is essential.

For diaphragm expansion tanks, the minimum volume of the water tank, Vt, gal(m3),can be calculated by the following formula, recommended by ASHRAE Handbook 1996, HVAC Systems and Equipment:

v2/v1-1-3α(T2-T1)

t=Vs

1-p

1/p2

=lower temperature,oF (℃)

=higher temperature, oF (℃)

=volume of water in system, gal(m3)

=absolute pressure at lower temperature,psia(kPa abs.)

=absolute pressure at higher temperature,paia(kPa abs.)

v1,v2=specific volume of water at lower and higher temperature, respectively, ft3/lb(m3/kg)

-6

α=linear coefficient of thermal expansion; for steel, α=6.5x10

-6

α=9.5x10

in./in·oF(1.7x10-5per ℃)

in./in·oF(1.2x10-5per ℃); for copper,

In a chilled water system, the higher temperature T2 is the highest anticipated ambient temperature when

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

the chilled water system shuts down during summer. The lower temperature in a heating system is often the ambient temperature at fill conditions(for example, 50 oF or 10℃).

h). Water quality control

When industrial water is used as chilled water, little furring may occur; however, well water or river water, used as chilled water, may cause much sediment, such as furring, sand, and so on. Therefore, well water or river water must be filtered and softened in softening water equipment before flowing into chilled water system. If sand and clay settle in the evaporator, circulation of chilled water may be blocked, and thus leading to freezing accidents; if hardness of chilled water is too high, furring may occur easily, and the devices may be corroded. Therefore, the quality of chilled water should 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 Sulfide ion none Chlorine ions less than 50 ppm Ammonia ions none Sulfate ion less than 50 ppm Silicon less than 30 ppm Total iron less than 0.3 ppm Sodium ion No requirement Calcium ion less than 50 ppm

Filling the i

nstallation

less than 200 mV/cm (25°C)

- Before filling, check that the installation drain cock is closed.

- Open all installation and terminal air vents.

- Open the gate valves.

- Begin filling, slowly opening the water filling cock outside the unit.

- When water begins to leak out of the terminal air vent valves, close them and continue filling until the pressure gauge indicates a pressure of 1.5 bars.

Emptying the installation

- Before emptying, place the mains switch in the“off” position.

- Make sure the installation fill/top-up water cock is closed.

- Open the drain cock outside the unit and all the installation and terminal air vent valves.

Size and position of connections

For MGRH5A-PA1Z & MGRH7A-PA1Z model

water inle t

auto-water replenishing orif i ce

security discharge

water outlet

Water outlet of plat e heat exchanger

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Model

MGRH5A-PA1Z MGRH7A-PA1Z

(mm) B (mm) C (mm) D (mm) E (mm)F (mm)

70 106 230 362 108 161 76 119 R1 G1/2 G1/2

(mm)

Water

inlet/outlet (Ø)

For MGRH10A-PA1Z,MGRH12A-PA3Z, MGRH14A-PA3Z, MGRH16A-PA3Z model

auto-water

replenishin

orifice

water outlet

water inlet

Model

MGRH10A-PA1Z

GRH12A-PA3Z

MGRH14A-PA3Z

MGRH16A-PA3Z

(mm) B (mm) C (mm) D (mm)E (mm)F (mm)

300 195 155 105 68 105 R5/4 G1/2 G1/2

security dis c harge

Water

inlet/outlet

(Ø)

Auto-water

replenishing (Ø)

Auto-water

replenishing (Ø)

Security

discharge (Ø)

Security

discharge (Ø)

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 a number of hours.

The pressure of the installation should be checked regularly and if it drops below 1 bar, the water content should be topped-up.

c) Check the hydraulic tightness of joints. d) An all-pole disconnection device which has at least 3mm separation distance in all pole and a residual

current device (RCD) with the rating of above 10mA shall be incorporated in the fixed wiring according to the national rule the appliance shall be installed in accordance with national wiring regulations.

e) If the fluid in the circuit contains anti-freeze, it should not be allowed to drain freely as it is pollutant. It

should be collected for possible reuse. When draining after heat pump operation, take care as the water may be hot (up to 50°).

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

i). Electrical connection

The unitary mini chillers leave the factory already wired, and require the installation of an omni polar thermal overload switch, a lockable mains disconnecting switch for the connection to the mains power supply, and the connection of the flow switch to the corresponding terminals. All the above operations must be carried out by qualified personnel in compliance with the legislation in force.

For all electrical work, refer to the electrical wiring diagrams in this manual. You are also recommended to check that the characteristics of the mains electricity supply are adequate for the absorptions indicated in the electrical characteristics table below, also bearing in mind the possible use of other equipment at the same time.

Important

 Power to the unit must be turned on only after installation work (hydraulic and electrical) has been

completed.

 All electrical connections must be carried out by qualified personnel in accordance with legislation in

force in the country concerned.

 Respect instructions for connecting phase, neutral and earth conductors.  The power 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 ±10% of the rated power supply voltage for the unit (for three

phase units, the unbalance between the phases must not exceed 3%).If these parameters are not respected, contact the electricity supply company.

 For electrical connections, use double insulation cable in conformity with current legislation in the

country concerned.

 An omnipolar thermal overload switch and a lockable mains disconnecting switch, in compliance with

the CEI-EN standards (contact opening of at least 3mm), with adequate switching and residual current protection capacity based on the electrical data table shown below, must be installed as near as possible to the appliance.

 The devices on the unit must be lockable. An efficient earth connection is obligatory. Failure to earth

the appliance absolves the manufacturer of all liability for damage.

 Do not use water pipes to earth the unit.

Electrical Panel

The electrical panel is located inside the unit at the top of the technical compartment where the various components of the refrigerant circuit are also to be found.

To access the electrical panel, remove the front panel of the unit by undoing the screws.

5/7kW 10~16kW

j) Electrical Power Connection

1) MGRH5A-PA1Z, MGRH7A-PA1Z

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Power Cable

Outdoor units

For the functional connection of the unit, bring the power supply cable to the electrical 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

GND

Power Supply

L N

GND

Residual Current CIrcuit-breaker

10 11

NLGND

Residual Current Circuit-breaker

GND

AC 220-240V 50Hz

NOTE: The outdoor un and must be effectively earthed.

its must be installed with an Residual Current Circuit-breaker near the power supply

PUMP2 Remote alarm Rem ot e shutdown

Remote c ool ing/ heati ng

wire co ntroll er

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

3) MGRH12A-PA3Z, MGRH14A-PA3Z, MGRH16A-PA3Z

Residual C urrent Circuit-breaker

Auxiliary Connection

1) MGRH5A-PA1Z, MGRH7A-PA1Z

GND

NCGNDB

AC 380-415V 50Hz

GND

PU M P2 Remote alarm

Remot e s hut dow n

Remote cooling/heating

wire controller

10 11

1212L1

PUMP2 BOIL ON/OFF

220~240 V

N L

220~240 V

AC CANTACTOR

Addtitiona l p um p

1.“PUMP2”wiring terminal supplies ON/OFF signals only. Standby water pump must be controlled by the AC contactor.

2.“ON/OFF” wiring terminal L supplies 220V voltage.

The unit must be powered off when connecting the remote control switch. When the remote control switch is closed, the unit is forced to shut down.

Reserved

Switch

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

2) MGRH10A-PA1Z,MGRH12A-PA3Z, MGRH14A-PA3Z, MGRH16A-PA3Z a. Additional pump

Main control boar d

220-240V

N L

220-240V

AC contactor

Additional pum p

“PUMP2” terminal only provides passive switching signal.

Additional water pump must be controlled by the AC contactor.

b. Remote

alarm

Main control board

Remote alarm terminal only provides passive switching signal. Current passing through the terminal interface should less than 1.5A, otherwise please use AC contactor to control load indirectly.

c. Remote

shutdown

SWITCH

If switch is closed, the unit will be stopped forcibly. Under this circumstance, anti-frozen pr If switch breaks, unit can run normally according settings.

otection and other protection functions are still effective.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

d. Remote cooling/heating

SWITCH 2

If switch 2 is closed, the unit will shift to heating mode forcibly; If switch 2 br

Note:

● Remote shutdown and Remote cooling/heating is optional function.

● Choose this function by DIP switch SW4_1(SW3_1 for 12/14/16kW) on PCB board.

Factory default has no remote cooling/heating.

● When the remote control and wired controller used at the same time, the unit will carry out the last

command of arbitrary terminal.

● Remote shutdown has the highest priority. In the status of remote shutdown, other controllers can’t start

the unit.

eaks, the unit will shift to cooling mode forcibly.

e. Remote controller

10 11

PPQE

● The wired controller is optional.

● Please use 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

parameters and inquiry, can’t be used to set mode and temperature..

The Specification of Power:

Type Power(V/Ph/Hz)) 220~240/1/50 220~240/1/50 220~240/1/50 380~415/3/50 380~415/3/50 380~415/3/50

Circuit breaker/fuse (A) Power wire

)

(mm Ground wire

)

(mm

MGRH5A-PA1Z MGRH7A-PA1Z MGRH10A-PA1Z MGRH12A-PA3Z MGRH14A-PA3Z MGRH16A-PA3Z

25/20 3×2.5 3×2.5 3×4.0 5×3.0 5×3.0 5×3.0

2.5 2.5 4.0 2.5 2.5 2.5

30/25

40/35 30/25 30/25 30/25

Important The power cord type designation is H07RN-F. Connecting cable between indoor unit and outdoor unit shall be approved poly-chloroprene sheathed flexible

cord, type designation H07RN-F or heavier cord. The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air

gap.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

15. Checking and Starting Up the Unit

Preparing for first start up

Restarting after shutting down for long periods The chiller must be started up for the first time by the Technical Service. Before starting up the chillers, make

sure that:

- All safety conditions have been respected.

- The chiller is adequately fixed to the surface it rests on.

- Functional distances have been respected.

- Hydraulic connections have 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.

- Electrical connections have been carried out correctly.

- Voltage is within a tolerance of 10% of the rated voltage for the unit.

- The unit is correctly earthed.

- All electrical and hydraulic connections are tight and have been completed correctly.

- Use grommet A for the electrical power cable and grommet B for the other external wires.

To complete the electrical connections:

- Remove the inspection panel by unscrewing the five screws. For example, MGRH5A-PA1Z model.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

To access

-remove the screw 1 and screw 2;

-lift the door 3.

the control panel, open the door:

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

16. Running and Maintenance

a) Operating characteristics

Set point in cooling mode

(factory set) = 12°C, Hysteresis = 3°C. The compressor starts with water temperatures above 12°C. The compressor shuts down with water temperatures of less than 9°C.

Set point in heating mode

(factory set) = 40°C, Hysteresis = 4°C. The compressor starts with water temperatures below 38°C. The compressor shuts down with water temperatures above 42°C. In the event of a temporary power failure, when power returns, the mode set previously will be retained in the

memory.

Compressor start up delay

Two functions prevent the compressor from starting up too frequently

- Minimum time since last start-up 300 seconds.

Pump

The electronic board includes a pump control output. The pump starts when the assembly is powered up and at least 285 seconds before the compressor starts up and stops 120 seconds after the assembly shuts down. After the first 120 seconds of pump operation when the water flow is at full speed, the water flow alarm functions are activated (differential pressure switch and flow switch). With a pump connected to terminals PL and PN on the installer terminal board.

Fan speed control

For correct operation of the unit with different outside temperatures, the microprocessor controls the fan speed based on the pressure reading from the pressure probe, thus 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 alarm

To prevent the water freezing and damaging the plate heat exchanger, the microprocessor shuts down the compressor if the temperature measured by the heat exchanger outlet temperature sensor is less than 3°C. The frost prevention temperature set point can be modified by an authorized service center only and only after verifying that the water circuit contains antifreeze. Tripping of this alarm shuts down the compressor but not the pump, which remains active. To reset normal functions, the outlet water temperature must rise to more than +15°C. Reset is manual.

Water flow alarm

The microprocessor provides for management of a water flow alarm controlled by a differential pressure switch fitted as standard on the appliance to be installed on the water delivery piping.

This safety device may trip after the first 120 seconds of pump operation when the water flow is up to speed. Tripping of this alarm shuts down the compressor but not the pump, which remains active. To reset normal

functions, the alarm contact must be deactivated for at least 15 seconds. When electrical current exceeds to setting value and condenser temperature over than 62°C, system will

shut down, but not returns to normal operation until the condenser temperature decreased less than 52°C.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

b) Routine maintenance

Never perform any cleaning operations before having disconnected the unit from the mains power supply. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly

qualified manufacturer or its service agent or a similarly qualified. Regular maintenance is fundamental to maintain the efficiency of the unit both in terms of operation and

energy consumption. The Technical Assistance Service maintenance plan must be observed, with an annual service which includes the following operations and checks:

- Filling of the water circuit.

- Presence of air bubbles in the water circuit.

- Efficiency of safety devices.

- Power supply voltage.

- Power input.

- Tightness of electrical and hydraulic connections.

- Condition of the compressor contactor.

- Efficiency of the plate heat exchanger heater.

- Checking of operating pressure, superheating and sub cooling.

- Efficiency of compressor heater.

- Cleaning of finned coil (*).

- Cleaning of fan grills.

- Cleaning of condensate drain pan (if installed).

(*) For “Heat pump” appliances, the checks are to be performed quarterly.

For units installed near the sea, the intervals between maintenance should be halved.

c) Extraordinary maintenance

Never perform any cleaning operations before having disconnected the unit from the mains power supply.

Chemical washing

You are recommended to chemically wash the plate heat exchanger after every 3 years of operation.

Refrigerant gas content

The chillers are filled with R410a refrigerant gas and tested in th be no need for the Technical Assistance Service to intervene to check the refrigerant gas. However, over time, small leaks may develop at the joints leading to loss of refrigerant and draining of the circuit, causing the unit to function poorly. In this case, the leaks of refrigerant must be identified and repaired and the refrigerant circuit refilled. Proceed as follows:

- Empty and dry the entire refrigerant circuit using a vacuum pump connected to the low and high pressure tap until the vacuum meter reads about 10Pa. Wait a couple of minutes and check that this value does not rise to more than 200Pa.

- Connect the refrigerant gas cylinder or a filling cylinder to the low pressure line pressure gauge connection.

- Fill with the quantity of refrigerant gas indicated on the rating plate of the unit.

- Always check the superheating and sub cooling values. In the nominal operating conditions for the appliance, these should be between 5 and 10°C and between 4 and 8°C respectively.

- After a couple of hours of operation, check that the liquid indicator indicates circuit dry (dry-green).

e factory. In normal conditions, there should

Important In the event of partial leaks, the circuit must be completely emptied before being refilled The R410a refrigerant must only be filled in the liquid state. Operating conditions other than nominal

conditions may produce considerably different values. Seal testing or identification of leaks must only be carried out using R410a refrigerant gas, checking with a

suitable leak detector.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Prohibition

1. The refrigerant circuit must not be filled with a refrigerant other than that indicated of specification.

2. The use of a different refrigerant may cause serious damage to the compressor.

3. Oxygen, acetylene or other inflammable or poisonous gases must never be used in the refrigerant circuit as they may cause explosion or poisoning.

4. Oils other than those indicated on manual before must not be used. The use of different 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 in the power off model "

", or alternatively disconnect the unit from the power

supply.

-Make sure the remote control switch is closed (if present) .

-Close the water valves.

Important If there is a possibility that the outside temperature may drop below zero, there is the risk of freezing. The water circuit MUST BE EMPTIED AND SHUT OFF POWER (when draining after heat pump operation

take care as the water may be hot) or antifreeze must be added in the proportion recommended by the manufacturer.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

17. Controller

17.1 Standard controller

It is built-in with the chiller at the factory.

The front panel of the device functions as the user interface and is used to perform all operations relating to the device.

②③④⑤⑥

①

⑧ ⑨

⑩

12 13 14 15 16

NO. Icon Description

①

②

③

④

⑤

⑥

Outside heat source runni Cooling mod

This icon will be constantly light when customers choose cooling mode. Heating mode icon This icon will be constantly light when customers choose heating mode. Water pump m This icon will be constantly light when customers choose water pump mode. Force cool This icon will be constantly light when customers choose force cooling mode. Power off icon This icon will be constantly light when customers choose Power off mode.

e icon

ing icon

7.1

ode icon

7.2

ng icon(Reserved)

18 19

7.1

7.2

⑧

⑨

⑩

Clock icon, “：

The last 2 digits of the nixie tube “ inlet water temperature. Its’unit is ℃ .When customers do the water temperature setting, icon will

display the setting water temperature. When checking, “ water heating is broken down or in protection, “

Clock icon

will display when finish setting the clock and be extinguished when the clock setting work is done.

It Timing on function ico

will flash when setting timing on. The icon will be constantly light when finish setting.

Timing off function icon

will flash when setting timing off. The icon will be constantly light when finish setting. Breakdow When the unit is broken down or under protection, this ic on will flash and will be off when malfunction and protection are eliminated. Compressor bootin When booting the compressor, this icon will be constantly light. It will be off when the compressor is shut down

E-heater booting in When booting the external E-heater, this icon will be constantly light. It will be off when the external E-heater is shut down. Fan booting i When booting the fan, this icon will be constantly light. It will be off when the fan is shut down. Water pump b When booting the water pump, this icon will be constantly light. It will be off when the water pump is shut down.

Key freezing icon

” flash once every 1s. It will display time when customers set the timer.

” icon. If “ ” is constantly light, it will display the cur rent

” will display the result of checking. When

” display the error code and protection code.

n light icon

g indicator icon

dicator icon（Reserved）

ndicator icon

ooting indicator icon

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

When freezing the keys, this icon will be constantly light. It will be off when unfreezing keys.

Temperature u When the control panel displays temperature, this icon will be constantly light. Current unit icon When the control panel displays current, this icon will be constantly light. Time format ic The unit is 12-hour format. “

“ ” will be constantly light when it is afternoon

ncy unit icon

Freque It will be constantly light when the control panel displays frequency of the compressor. ON/OFF and OK button

g press “

1.Lon

2.Press “ Mode choice function/Function choice/Back function button

1.Mode choice function. Choose operation mode.

2.Function choice. Long press it for 3s to enter function setting in the main interface.(Clock setting, Timing on and timing off setting)

3.Back to the previous menu. Long press it for 3s to back to previous menu in the function setting interface. Top menu is the main interface. Up

1.(Value

2.Forward to the previous interface. Down

1.(Value decrease)

2.Backward to the next interface.

nit icon

”will be constantly light when it is forenoon.

” for 3S will power on or off the controller.

” to confirm the former operation when finishing the setting work.

increase)

17.1.1 Control panel operation description

1) ON/OFF The first time to powered on the unit, operation panel displays “OFF”. Long press “

” for 3s, to unlock

“OFF” status and enter into standby status. Power on: In the standby status, press “ to choose one kind of “power on” mode, the mode icon will flicker at the moment. Press “

” to enter mode choice function. Press “ ” circularly

” to confirm

the power on mode. The unit will run as the chosen mode when the mode icon will be constantly light. Power off: Press “ the current mode will flicker. Press “

” in the main interface to enter mode choice function and the icon which indicate

” circularly to choose power off mode,

“ ” will flicker at this moment. Press “ ” button to confirm the power off mode. By this time, “ ” will be constantly light and the unit stops.

2) Mode choice and temperature settings

Press “

” in the main interface to enter mode choice function. The “Mode” icon will flicker. Click

“ ” circularly to choose a mode. The circulating order is “Cooling mode”→“Heating mode”→ “Water pump mode” →“Power off mode” → “Cooling mode. The chosen mode will flicker. Press “

”or “ ” to increase/decrease the temperature in the chosen mode. Press “ the unit will run as the chosen mode. Press “

” to confirm power off mode and the set temperature. Mode icon will be constantly light and

” or “ ” in the main interface to increase/decrease the

temperature in the chosen mode.

3) Clock setting Long press “

” for 3s to enter function interface. “ ” clock icon will flicker. Press “ ” to enter clock setting function. “ ” icon will be constantly light and the first 2 digits on nixie tube will flicker. Press “ ” or “ ” to set minute. Press “ ” when finish setting and “ ” will be extinguished.

4) Timing setting a. Timing on setting

① Long press “

to enter timing on function. “

” for 3s to enter function interface. “ ” clock icon will flicker. Press “ ”again

” will flicker and press “ ” to enter timing on setting.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

② At this moment, last 2 digits of the nixie tube display “01” which means the first group setting begins.

Press “

” to the next step.

③ By this time, mode icon will flicker and press “ ”to choose timing on mode. Press “ ” to confirm

your choice and go to the next step.

④ By this time, the last 2 digits of the nixie tube will flicker and press “

and set the temperature of the inlet water. Press “

” to confirm and move to the next step.

⑤ By this time, the first 2 digits of the nixie tube will flicker and press “

on. Press “ tube will flicker and press “

” to confirm and switch to minute setting automatically. The last 2 digits of the nixie

” or “ ” to adjust minute setting of timing on.(minimal unit of minute

” or “ ” to adjust temperature

” or “ ” to adjust time of timing

adjustment: 15 minutes) .

⑥ Press “

” to confirm. The first group setting is finished and “ ” will be constantly light.

When processing the second timing setting, repeat the 1-2 operation above. When the nixie tube displays “01” and flicker, press“

” or “ ” to choose the timing on group. When the nixie tube displays “ 02 ” which means setting timing on function of the second group. Refers the timing on setting operation of group 1 to set that of group 2.

● Long press “

” for 3s to return to the previous interface to reset the parameter during setting clock

timing.

b. Timing off setting

① Long press “

enter timing off function. “

” for 3s in the main interface to enter function interface. Press “ ” circularly to

” will flicker and press “ ” to enter timing off setting.

② At this moment, the last 2 digits of the nixie tube display “01” which means the first group setting begins.

Press “

③ By this time, the first 2 digits of the nixie tube will flicker and press “

timing off. Press “ nixie tube will flicker and press “

” to the next step.

” or “ ” to adjust time of

” to confirm and switch to minute setting automatically. The last 2 digits of the

” or “ ” to adjust minute setting of timing off. Press “ ” to

confirm. The first group setting is finished and “ ” will be constantly light.

④ When processing timing setting of group 2, repeat the 1-2 operation above. When the nixie tube

displays “01” and flicker, press “

” or “ ” to choose the timing off group. When the nixie tube

displays “02”which means setting timing off function of the second group.

Refers the timing off setting operation of group 1 to set that of group 2.

c. Cancel all timing on/off settings

Long press “ to choose the timing function. “

” for 3s to enter function interface. “ ” clock icon will flicker and press “ ”

” and “ ” flicker simultaneously means choosing to cancel all

timing functions. Press “ ” to cancel timing settings. “ ” and “ ” both will be extinguished.

17.1.2 Functions of combination key

Force cooling function Press “

” and “ ” simultaneously for 3s in the main interface to enter into force cooling mode.

The force cooling mode icon will be constantly light. Press “

” button and “ ” button simultaneously for 3s to quit force cooling mode. The unit will

enter power off mode automatically when quitting force cooling mode.

18.1.3 Auto-lock(unlock) function

If don’t operate the controller in 60s, the keyboard will lock automatically. Press “

”and “ ”

simultaneously for 3s to unlock.

7.1.4 Factory Reset

In main interface, long press “ Display panel will display ”OFF”.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

” for 3s, the unit will close and recovers to factory default mode.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

17.2 Optional wired controller (KJR-120F/BMK-E, KJR-120F1/BMK-E) Features

a. Touch key operation; b. LCD displays operation parameters; c. Multiple timer; d. Real-time clock (battery life:5~8 years).

17.2.1 Overview

①.Operation icon ②.Code area ③.Setting temperature ④.

Timing On/Off

⑤.Function Icon

MODE

FUNCTIONS

(Press for 3sec to cancel timer)

(Press for 3sec to unlock)

⑥.Unit numbe

⑦.Water Level Indication(reserved) ⑧.Clock ⑨.Water temp. ⑩.ON/OFF Key

⑪.Left Right Key

⑫.Confirm Key ⑬.Function key ⑭.Add and Reduce key ⑮.Cancel key ⑯.Mode key

1. Operation icon

: Indicate unit ON and OFF status; the icon displays when the unit is on and does not

display when the unit is off;

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

2. Mode area: Indicate the main unit operating mode; details refer to its’ manual;

3. Setting temperature: 2 status can be displayed:

4. Timing ON/OFF indication

: Indicate the timing information; details refers to page 10 of the

;

manual;

5. Function icon

: Displays when the unit controlled by remote switch;

: The conflict icon.

: Displays when the unit is needed. Press and hold “MODE” key for 3 seconds to cancel the icon

and timing will restart until next maintenance;

4) : The reserved icon. ;

: The reserved icon. ;

6) : Displays when check function is on; details refers to the manual;

7) : Displays when ambient temperature is low which means the main unit need anti-freezing action;

8) : Displays when no key operation for 2 minutes and all keys are locked. Press and hold “OK” key for 3 seconds to unlock;

9) : Displays when error or protection occurs and means the unit need maintenance by professionals.

6The unit number: The user can set the number, details refer to page 16 of the manual;

7. Water level indication: The reserved icon;

8. Clock: Under normal status displays 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 displays the setting value; Under check status displays check parameter, details refer to Page 9, 18 of the manual;

10. ON/OFF key: Turn on and turn off functions, details refer to page 7 of the manual.

11. Right and Left key: Press these keys to check setting water temperature; Press right key to shift to the

next step setting under timing setting status; Press these keys to turn over the unit parameter information under check status;

12. OK key: Press this key to confirm settings. Press and hold this key for 3 seconds to unlock under

locking status;

13. Function key: Setting water temperature, timing and clock etc, details refer to Page 9-17; Press and hold

this key for 3 seconds to enter check status, details refer to page 18 of the manual;

14. Add and Reduce key: Move up or move down values of temperature, timing etc;

15. Cancel key: Press this key to cancel parameter setting under setting status; Press and hold this key for 3

seconds to cancel timing when timing is valid;

16. Mode key: Power on the cooling function, heating function or water pump function, details refer to Page 8

of the manual.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

17.2.2 Operation instructions

a. Turn On and Turn Off the main unit

1) Press the On/Off key to control On and Off status of the main unit.

2) Under Off status, press the On/Off key “

will display the operation icon “

”. The main unit will running as the current setting of the wired controller.

3) Under On status, press the On/Off key “

” to run the main unit, at that time the LCD of wired controller

” to turn off the main unit and the operation icon “ ” on the

LCD will disappear.

ONLINE

RUN

WATER TEMP.

MODE

(Press for 3sec to cancel timer)

TIMER

FUNCTIONS

QUANTIT Y

Press one time

(Press for 3sec to unlock)

b. Setting operating mode and function parameters

Setting operating mode and water temperature

Setting operating mode: Press “MODE” key to choose operation mode. The setting mode will change as the following order each time the key is pressed:

lin

→

Press “OK” key or wait for 7 seconds to confirm. During the setting process pressing the “CANCEL” key to exit without saving.

RUN

WATER TEMP.

TIMER

MODE

(Press for 3sec to cancel timer)

FUNCTIONS

(Press for 3sec to unlock)

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

2) Setting water temperature:

Method 1:Press the “▲” or “▼” to adjust the water temperature after the controller is powered on. Press “OK” key or wait for 7 seconds to confirm. Method 2:Setting water temperature in parameters function. Press “FUNCTIONS” key under main interface once to enter water temperature setting interface. Press the “▲” or “▼” to adjust the water temperature .Press “OK” key or wait for 7 seconds to confirm.

RUN

WATER TEMP.

TIMER

MODE

Press once

FUNCTIONS

(Press for 3sec to cancel timer)

ter temperature setting check: To check the water temperature setting value, press the “

(Press for 3sec to unlock)

” or “▲”key

under the main page(the page displayed after the controller is powered on).

c. Setting function parameters

Press “FUNCTIONS” key to choose operation parameters. The setting function parameters will change

as the following order each time the key is pressed:

→

1) Timing se

→

tting: 3 timing periods can be set on the wired controller: Timer 1, Timer 2, Timer 3. These 3

timers can control the main unit to be turned ON and OFF 3 times at most during a day.

2) Setting method: press “FUNCTIONS” key under main page twice to enter timing setting. Then the LCD

will display as the following:

TIMER

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

▲

MODE

RUN

WATER TEMP.

TIMER

Press twice

FUNCTIONS

(Press for 3sec to cancel timer)

At this time the hour of the clock will flash, which press the “▲” or “▼” to adjust, press “

means the current setting is the hour of Timer 1 “On”,

” key when finished, and then the minute of the clock will

(Press for 3sec to unlock)

flash, which means the current setting is the minute of Timer 1 “On”, press the “▲” or “ ▼ ” to adjust, press “

At this time press the “▲” or “▼” to adjust, press “

” key when finished, the LCD will display as the following:

TIMER

OFF

the hour of the clock will flash, which means the current setting is the hour of Timer 1 “Off”,

” key when finished, and then the minute of the clock will flash, which means the current setting is the minute of Timing 1 “Off”, press the “▲” or “▼” to adjust, press “

” key when finished, the LCD will display as the following:

TIMER

At this time the hour of the clock will flash, it means the current setting is the

hour of the Timer 2 “On”. And the follow setting method will be the same as the Timer 1. Similarly, the setting of Timing 3 is the same as this method. After setting is finished, press “OK” key or wait for 7 seconds to confirm the setting, and the LCD will display the effective timing information, as the following display:

TIMER

Example of Timing setting

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Main page

Press “FUNCTIONS” key twice to enter hour setting interface of “Timer 1 On”

Press the “▲” or “▼” key to set the hour number of “Timing 1 On” to be 07

Press “ ” key to enter minute setting interface of “Timer 1 On”, adjust the minute number to be 10

Press “ ” key to enter hour setting interface of “Timer 1 Off”, adjust the hour number of “Timer 1 Off” to be 12

Press “ ” key to enter minute setting interface of “Timer 1 Off”, adjust the minute number to be 30

Whether press “OK” key

Successfully set the On time of “Timer 1” to be 07:10 and Off time of “Timer 1 Off ” to be 12:30, then back to the main page.

The setting steps of “Timer 2” and “Timer 3” are the same as “Timer 1”, after setting all the settingsthen press “OK” key, the 3 timing periodswill be effective.

▼

Yes

Whether press “ ” key

Yes

Finish setting the On time of “Timer 1” to be 07:10 and Off time to be 12:30, then enter the setting of “Timer 2”.

“Timer 1” setting failed, after 7 seconds, the page shift to the main page.

▼

During any period of timing setting to press “OK” key , the timing periods which have been set will be effective (only if the “On” and “Off” of one timing period have been set, the setting is effective). Check timing information: to check the timing which has been set, press “

” or “▲ ” key under main page, the “ On ”and “ Off ” time of Timer1, Timer 2 and Timer3 will be displayed in turns. Cancel timing: press and hold “CANCEL” key for 3 seconds, then all the effective timing periods will be cancelled.

Note: Correct: To avoid timing error, each period of timing should not be crossed. E.g.: Correct:

TIMER 1 TIMER 2

：00

8：00

10：00 12：00

18：00

TIMER 3

22：00

Wrong:

TIMER 2TIMER 1

：00

7：00

8：00

12：00

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

▲

d. Setting clock

MODE

RUN

WATER TEMP.

TIMER

Press 3 times

FUNCTIONS

(Press for 3sec to cancel timer)

Press the “FUNCTION” key 3 times to enter clock setting. The hour of the clock will the current setting is the hour of the clock, press the “▲” or “▼” to adjust, press “

(Press for 3sec to unlock)

flash, which means

” key when finished, and then the minute of the clock will flash, it means the current setting is the minute 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 timing On and timing Off time, please correctly set the clock!

e. Setting unit number

RUN

WATER TEMP.

TIMER

MODE

Press 4 times

FUNCTIONS

(Press for 3sec to cancel timer)

Press the “FUNCTIONS” key 4 times to enter the unit number setting. Pre

(Press for 3sec to unlock)

ss “▲” or “▼” to adjust the unit number. press “ OK ”key when finished or wait for 7 seconds to confirm. During the setting process pressing the “CANCEL” key to exit without saving. The setting value is 0-18.

f. Force opening water pump

MODE

WATE R TEMP.

Press 5 times

TIMER

FUNCTIONS

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

(Press for 3sec to cancel timer)

(Press for 3sec to unlock)

Press the “FUNCTIONS” key 5 times to force open the water pump. The water pump icon will flash. Press “ OK ”key to confirm. During the setting process pressing the “CANCEL” key to exit without saving. Note: a. Forcing water pump function is only limited to stand-by mode, others modes not response. b. Under forcing water pump function, other settings will not responsible, except stopping c. When communication disconnects, it will show E2 error in 2 minutes, the wired controller will automatically cancel the forcing water pump function; 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 response after activating the forcing water pump function, (eg: forcing water pump function cannot be activated under forcing heating in stand-by mode),the function will be automatically stopped if it is not activated within 5 minutes.

17.2.3 Checking function

1) Check function allows the user to check all the operating parameters, error and protection information of the unit.

2) Entering method: press and hold “FUNCTIONS” key for 3 seconds to enter check interface, as the figure display:

3) Press “

check

icon

check

RUN

parameter

MODE

FUNCTIONS

Press 3 seconds

(Press for 3sec to cancel timer)

” or “▲” to check all the status information of the unit.

CHECK

(Press for 3sec to unlock)

Unit number

check sequenc e number

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Check content when wired controller setting is 1:

(The checki

ng content is the same as the PCB’s checking.)

Order Contents 1 Running mode: 0-shutdown,1-Pump mode,2-Cooling,3-Heating,4-Forced cooling, 5-Forced he ating. 2 Fan speed:0-Shutdown,1~7-Fan speed. 3 Total capacity requirements. 4 The revised capacity requirements. 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. Value (Temperature 1 of heat plate) 12 Tb2 temp. Value (Temperature 2 of heat plate)

T6 temp. Value（Reserved ）

14 Outdoor unit current 15 Power supply voltage AD value 16 Electronic expansion valve opening steps 17 The unit model:10-10kW,12-12kW,14-14kW,16-16kW 18 The program version number 19 The last error cord 20 The second error cord 21 The first error cord 22 ---

18.Troubleshooting

18.1 PCB parts instructions

MGRH5A-PA1Z, MGRH7A-PA1Z

PFC&IPM panel

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

7 9

8

6

5

4

3

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. +18V port

9. IPDU communication port

10. IPM power port N

11. Compressor connection port U/V/W

12. IPM power port P

12

12

11

10

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Main control panel

13

11

9

8

10

12

14 15

17 18

20

7

 6



5

4

1. Power L

2. Power N

3. Preliminary charging relay (rectifier bridg e input port 1)

4. Input rectifier bridge line (rectifier bridge input port 2)

5. 5A fuse o IPDU

6. T

7. T o PFC

8. Solenoid valve (Reserve)

9. Electric heater of plate heat exchanger

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 control

18. DC fan power supply port

19. DC fan port

20. Tin/Tout/Tb1 temperature sensor

21. Radiator temperature sensor (Reserve)

22. Discharge temperature sensor (Tp)

23. Outlet

of outdoor heat exchanger temperature sensor(T3)

24. Ambient temperature sensor(T4)

25. Low pressure switch

High pressure switch

26.

27. Operation and display panel port

28. Water flow switch

29. Transformer output

21

22

23

24

25

26

27

28 29

23

DC filter panel

1

2

3

4

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)

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

5

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

MGRH10A-PA1Z Main control panel

23

21

19

26

20

25

24

22

27

29



30 31

1

2

3

5.1 6

7.2

9 10

4

5.2

7.1

8

18

17

16



15

1. Tr

ansformer output port

2. Tin/Tb1/T out/Tb2 temperature sensor port

Note: Tin: water inlet temperature Tout: water outlet temperature

Tb1: Temperature 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 temperature sensor port(T3)

5.2 Ambienttemperaturesensorport(T4)

6. Operationanddisplaypanelport

7.1Lowpressureswitch

7.2Highpressureswitch

8. Differentialpressurevalveport

9. Factorydebugport

10. Wiredcontrollerport

11. Electricexpansionvalveport

12. PowersupplyinputportL

13. Powersupplyinputpor

14. Groundwir

tN

11

12

13

14

15. Rectifier bridge input port N

16. Rectifier bridge input port L

17. 8A fuse tube

18. Solenoid valve port(Reserved)

19. Exhaust valve electric heater port

21. Plate heat 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. Transformer input port

38. P/N/+15V port

29. Communication port between IPDU and main PCB

30. Down DC fan port

31. Check touch switch

32. Up DC fan port

33. Force-cooling touch switch

PFC Module

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

12

11

1

2

3

5

10

789

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

1. +18V output port

2. Input Port P for IPM

3. Power supply port U of the compressor

4. Power supply port V of the 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 control board

MGRH12A-PA3Z, MGRH14A-PA3Z&MGRH16A-PA3Z Main control panel

230

29

28

24

22

20

26

19

18

17

25

23

21

16

27

1



2

3



4

8 9

5

6.1

6.2

7.1

7.2

10

11

12

15

14

13

1. Input port for switching power supply

2. Debugging port

3. Connection port for operation and display panel

4. Tin/Tb1/Tout/Tb2 temperature sensor port Note: Tin: water inlet temperature Tout: water outlet temperature Tb1: Temperature 1 of plate heat exchanger Tb2: Temperature 2 of plate heat exchanger

5. Discharged temperature sens or port (Tp)

6.1 T3 temperature sensor port

6.2 T4 ambient temperature sensor port

7.1. Low pressure switch

7.2 High pressure switch

8. Checking touch switch

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. Electronic expansion val ve port

16. AC 220V power supply port

17. Solenoid valve port(Reserved)

18. Exhaust valve electric heater port

19. Electric heater port of Plate heat exchanger

20. Electric heater port of differential pressure valve

21. Built-in water pump port

22. Electric heater of the compressor

23. Precharge AC contactor port

24. 4-way valve port

25. External water pump/Remote alarm por t

26. Up DC fan port

27. Down DC fan port

28. Power supply port for switching power supply of PFC board

29. Drive module port

30. P/N/+15V port

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

IPM module



8

7

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 input P

8. Power supply port for switching power supply

6

45

3

Filter board



10



Aqua Mini Full DC Inverter Unitary Chiller 50Hz

11

1

9

8

6

7

1. Power supply port L3

2. Power supply port L2

3. Power 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 L2 after filtering

10. Power output port L3 after filtering

11. Ground wire

2

3

18.2 Function setting dial switches

instructions For 5/7kW

For 10kW

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

For 12-16kW

19.3. Query function for the built-in controller

a. To enter parameter checking function Press “ ” and “ ” simultaneously for 3s to enter into the

interface of parameter checking function. At this moment, first 2 digits of the digital tube will display sequence number and the last 2 digits is specific parameters.

Press “

b.Quit parameter query function

If there’s no operation in 20s when enter the parameter query, it will quit automatically and return to the main interface. Press “

” or “ ” to query the relative parameters.

” and “ ” simultaneously to quit parameter query manually.

Query content table

5/7kW

No. Content Note

Show inlet water temperature when the unit is in standby mode and

1 Frequency

2 Operating 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 Capacity requirements after revised Actual value (Force cooling displays 5) 6 Temperature set Actual setting temperature un der cooling or heating mode 7 T3 Actual value(Outlet temperature of outdoor heat exchanger) 8 T4 Actual value(Outdoor ambient temperature) 9 Tp Actual value(Compressor discharged temperature) 10 Tin Actual value(Water inlet temperature of plate heat exchanger) 11 Tout Actual value(Water outlet temperature of plate heat exchangers) 12 Tb1 Actual value (Temperature 1 of plate heat exchangers) 13 Tb2 Actual value (Temperature 2 of plate heat exchangers(equals to Tb1 ) 14 T6 Reserved (Cooling fin surface temperature(reserved) 15 Operation current Actual value 16 Power supply voltage Actual AD value 17 EXV Opening degrees Actual value×8 18 Model 5kW:5; 7kW:7 19 Version number ---20 Err 1 The last one malfunction code 21 Err 2 The last second malfunction code 22 Err 3 The last third malfunction code

water pump mode. Display operating frequency when the unit is in cooling mode and heating mode. When defrosting displays dF. Pb displays when anti-freezing mode running.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

10-16kW

No. Content Note

Clock displays when standby. Inlet water temperature displays when

0 Normal display

1 Frequency 2 Operating mode

3 Operating fan speed level 0—Power off (1-7) 4 The total required capacity before revised Actual value (Force cooling displays 5) 5 Capacity requirements after revised Actual value (Force cooling displays 5) 6 Temperature set Actual setting temperature un der cooling or heating mode 7 T3 Actual value(Outlet temperature of outdoor heat exchanger) 8 T4 Actual value(Outdoor ambient temperature) 9 Tp Actual value(Compressor discharged temperature) 10 Tin Actual value (Water inlet temperature of plate heat exchanger) 11 Tout Actual value (Water outlet temperature of plate heat exchangers) 12 Tb1 Actual value(Temperature 1 of plate heat exchangers) 13 Tb2 Actual value(Temperature 2 of plate heat exchangers(equals to Tb1 ) 14 T6 Reserved(Cooling fin surface temperature(reserved) 15 Operation current Actual value 16 Power supply voltage Actual AD value 17 EXV Opening degrees Actual value×8 18 Err 1 The last one malfunction code 19 Err 2 The last second malfunction code 20 Err 3 The last third malfunction code

running. dF displays when defrosting. Pb displays when anti-freeze running. d0 displays when oil return, d8 displays when remote control is off. Display operating frequency when the unit is in cooling mode and heating mode.

0-Power off，1-water pump，2-cooling，3-heating，4-force cooling, 5-force heating

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

18.4 Error code

table 5/7kW

Error Code

E9 EEPROM malfunction H0 Communication malfunction between main chip and IPDU. E4 T3,T4 sensor malfunction E5 Voltage protection malfunction E6 DC fan motor malfunction EA A fan in the A region run for more than 5 minutes in heating mode Eb There are two times E6 fault in 10 minutes (recovery after power off) HH Inlet water temperature sensor malfunction for 5/7kW models. EC Outlet water temperature sensor malfunction (5/7kW) C0 Temperature sensor malfunction of plate heat exchanger for 5/7kW. P1 High pressure protection P2 Low pressure protection P3 Current protection of the compressor P4 Discharged temperature protection P5 T3 high temperature protection of outdoor condenser P6 IPDU module protection P8 Typhoon protection

CH CL

CP Anti-freeze protection of plate heat exchanger for 5/7kW Pb System anti-freeze protection C8 Water flow switch protection malfunction PH Protection when water temperature in heating mode is too high for 5/7kW. 5/7kW

dF Defrosting d8 Remote control

Content

Protection when temperature difference between inlet & outlet water in heating mode is too large for 5/7kW Protection when temperature difference between inlet & outlet water in cooling mode is too large for 5/7kW.

Note

The same as 10-16kW

5/7kW

The same as 10-16kW

5/7kW

The same

as 10-16kW

The same as 10-16kW

10-16kW

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Error Code

F7 Sensor temperature 1 of plate heat exchangers for 10-16kW.

F8 Sensor temperature 2 of plate heat exchangers for 10-16kW. PL Reserved for 10-16kW. P1 High pressure protection P2 Low pressure protection P3 Current protection of the compressor P4 Discharged temperature protection P5 T3 high temperature protecti on of outdoor condenser P6 IPDU module protection P8 Typhoon protection

CH Protection when water temperature is too high in he ating mode.

CL To low water temperature protection in heating mode for 10-16kW

Pb System anti-freeze protection C8 Water flow switch protection malfunction

dF Defrosting

d8 Remote control

Content Note

Outlet water temperature sensor malfunction (10-16kW)

Anti-idling protection for water pump

Protection when temperature difference between inlet water & outlet water is too

large for 10-16

kW.

The same as 5/7kW

10-16kW

The same as 5/7kW

10-16kW

The same as 5/7kW

10-16kW

The same as 5/7kW

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

E9 malfunction: EEPROM malfunction

The malfunction may be caused by two reasons:

1) The EEPROM is not inserted well; 2) Outdoor main PCB is broken.

LED displays E9

EEPROM malfunction

Check whether EEPROM is installed properly.

Yes

Replace main PCB.

Installed properly again.

H0 malfunction : Communication malfunction between main chip and IPDU.

LED displays H0

Communication malfunction between main chip and IPDU

Whether the signal wire is connected normally between module board .

YES

Judge whether LED on the module board flash normally or not

when powered on.

YES

Replace module board.

Connect wire again.

Replace main PCB.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

ace ma

E4 malfunction : T3,T4 sensor malfunction HH malfunction : Inlet water temperature sensor malfunction for 5/7kW models. C0 malfunction : Inlet water temperature sensor malfunction for 10-16kW models. EC malfunction: Outlet water temperature sensor malfunction for 5/7kW models. C1 malfunction: Outlet water temperature sensor malfunction for 10-16kW models. C0 malfunction: Temperature sensor malfunction of plate heat exchanger for 5/7kW models F7 malfunction: Sensor temperature 1 of plate heat exchangers 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

LED displays E4/HH/EC/C0/C1/F7/F8

Whether sensor fails to work.

Judge whether the wire body is broken and the terminal is fall off.

Judge whether the port of temperature sensor connected wrong.

Use a multi-meter to check the resistance value of the temperature sensor is normal or not.

E5 malfunction: Voltage

LED displays E5

Repl

protection malfunction

in PCB.

YES

Connect wire again.

YES

Connect properly again.

YES

Replace temperature sensor.

Voltage protection

Judge whether the input voltage is within 198-252V.

YES

Replace main PCB.

Check the power supply.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

E6 malfunction: DC fan motor malfunction

LED displays E6

Outdoor unit DC fan cannot work.

Refers to the wiring diagram to check whether

the unit wirin

Check whether the power and voltage of the DC

fan motor is normal or not and whether the voltage between red and black terminal of DC motor is from 277V to 354V in waiting state.

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 motor is from 15V in waiting state.

Whether the outdoor fan will work after the indoor fan

operates for 3 minutes.

is correct or not.

YES

Check the voltage

between “+”,”-” port of PFC module is within 277-354V .

是

YES

Replace IPM module.

Check voltage between yellow and black terminal of the fan is over 2.4V

Connect again.

Replace PFC module board..

YES

Replace fan.

Replace the main PCB.

P1 malfunction: High pressure protection

duct of outdoor unit meets the standard

LED displays P1

High pressure protection

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Judge whether the wiring connection is correct.

YES

Judge wire body is broken or not.

To confirm: short-circuit high pressure switch and check whether

the system can operate normally or not.

YES

Check whether the cooling system is normal or not.

Check whether pressure of the system is too high.

Whether side air

YES

Whether the heat exchanger needs cleaning.

Connect again.

Replace high pressure switch.

YES

Stop the system.

Rectify the air duct

Clean.

Whether the pipeline is blocked.

Judge the circulation water pump is damaged or not.

Whether plate heat exchanger is fouling or blocked severely

Replace main PCB.

YES

Rectify the pipeline.

YES

Repair or replace the water pump

YES

Clean or replace heat exchanger .

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

P2: Low pressure protection

LED displays P2

Low pressure protection

Whether wiring connection between low pressure switch and PCB is connected well or properly.

YES

Whether the low pressure switch is damaged.

Short-circuit low pressure switch and check whether the

system can work normally.

Whether the cooling system can work as normal.

YES

Check whether the outdoor ambient temperature is too low.

Whether refrigerant system leaks.

YES

Replace low pressure switch .

Leakage detecting: add nitrogen or refrigerant into the system. “si”,”si” will sound evidently if leaks heavily. Use soap water(the combination of water and detergent ) or electronic detector to detect if leaks slightly.

Connect well again.

Stop the unit.

Connect pressure gauge with the system measuring port.

Whether EXV works properly or stuck or blocked

Replace outdoor main PCB.

YES

Replace the EXV, then use high pressure nitrogen to clean and air the pipeline, add the refrigerant at last.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

P3: Compressor current protection

It will protect when input current is more than 22A(31A for 10-16kW ). It will recover when input current is less than 22A

(31A for 10-16kW ). It will recover automatically.

LED displays P3

Compressor current protection

Check whether the input current of the power wire is more than 22A.

(31A for 10-16kW )

YES

Check cooling system is normal or not.

YES

Check whether the outdoor ambient temperature is too high.

Check whether the outdoor unit ventilates well.

Whether the heat exchanger needs cleaning or not.

If the refrigerant pipe is blocked or not?

YES

Replace main PCB

YES

Make the outdoor unit ventilates well.

YES

Clean heat exchanger.

Remove the refrigerant pipe and then use high pressure nitrogen or refrigerant to blow the pipe. Vacuumed the pipe then add the refrigerant again.

Stop the unit.

Whether the circulation water pump is damaged.

Whether plate heat exchanger is fouling or blocked severely

Replace main PCB.

YES

Repair or replace the water pump

Clean or replace heat exchanger.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

P4:Compressordischargedtemperatureprotection

When the discharged temperature of the compressor is higher than 115°C, the unit will stop running. When the discharged temperature of the compressor is lower than 83°C , the unit resumes normal operation automatically.

LED displays P4

Discharged temperature protection of the compressor

YES

Check whether the discharged temperature of the compressor is higher than 115°C.

Check whether the compressor discharged

temperature sensor connects with PCB correctly

according to the wiring diagram.

YES

Whether the discharged temperature sensor is damaged or not.

Check whether resistance of compressor discharged

temperature sensor is correct or not .

YES

Replace outdoor main PCB

Connect correctly again.

Check refrigerant leaks or not.

YES

Stop leaking and then add the refrigerant again.

Replace compressor discharged temperature sensor.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

P5: Condenser high temperature protection

When condenser temperature is higher than 62 degrees, the unit will stop operating. W hen pipe temperature outside is lower than 52 degrees, the unit will resume operate.

LED displays P5

Condenser high temperature protection

YES

Check whether condenser temperature is higher than 62 degrees

Check whether the resistance of condenser

temperature sensor is correct.

YES

Replace the outdoor main PCB.

Stop the unit

Clean heat exchanger

Replace EXV and then use high pressure nitrogen to blow the pipe. Vacuumed the pipe then add the refrigerant again.

YES

Replace the temperature sensor

Whether outdoor temperature is too high(higher than 48

degrees)or not.

Whether heat exchanger needs cleaning.

Check if the EXV is blocked or not.

Replace outdoor main PCB.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

P6: IPM Module protection

LED displays P6

IPM module protection

Check whether P-N voltage on the IPM module

is OK. The DC voltage is from 277 to 356V.

YES

Check if wiring connection between DC filter and IPM module is fasten or not.

YES

Check whether wiring

connection of the compressor is connected right and firmly.

YES

Replace IPM module and

check whether the system



can operate normally or not..

Replace main PCB and check

whether the system can operate normally or not.

YES

Check whether the input power is

Connect firmly again and check whether it is connected correctl

Connect well again and check whether it is connected correctly.

Solve the problem

Solve the malfunction.

correct. The power is 220-240V, 1N, 50Hz.

Check whether the output voltage of single-phase bridge rectifier is within 277-356V

Check if it is connected normally before entering bridge rectifier . If wire body terminal is connected firmly.

YES

Check whether power

wiring is connected correctl

YES

Check the fuse on the power

and firmly.

YES

Adjust to the right range. Then check whether the system runs normally.

Connect firmly again and check whether it is connected ri

Replace rectifier.

Connect wire correctly..

ht.

Replace compressor and check whether the system can operate normally or not.

YES

Solve the malfunction.

YES

Replace the main PCB.

Replace the same model fuse.

P8: Typhoon protection

LED displays P8

Typhoon protection

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Check if strong wind blows outdoor unit or two outdoor units blows each other.

Check whether the fan motor is damaged.

YES

Replace outdoor fan motor.

YES

Stop the unit to prevent strong wind

to blow the outdoor fan.

Replace the outdoor main PCB

CH malfunction: Protection when temperature difference between inlet & outlet water in heating

mode is too large for 5/7kW

CL malfunction: Protection when temperature difference between inlet & outlet water in cooling

mode is too large for 5/7kW. CP malfunction: Anti-freeze protection of plate heat exchanger for 5/7kW. PH malfunction: Protection when water temperature in heating mode is too high for 5/7kW. CH malfunction: Protection when water temperature in heating mode is too high for 10-16kW. PH malfunction: Protection when temperature difference between inlet water & outlet water is too

large for 10-16kW.

LED displays CH/CL/CP/PH

① Protection when temperature difference between inlet & outlet water in heating/cooling mode is too large； ② Anti-freeze protection of plate heat exchanger③Protection when water temperature in heating mod e is too hig h

Whether actual measured temperature difference between outdoor outlet water temperature minus inlet water temperature is higher than 14°C

Check inlet water sensor and outlet water sensor is

fall off or damaged.

YES

Place temperature sensor to the related position or replace it.

Adjust to high level

Water flow pump head of external water pump choices

Whether gear of water pump

is chosen right.

YES

Replace main PCB.

Check whether the volume of water flow is enough or not.

Whether water system is stuck.

Replace water system component.

YES

Select the proper water pump again.

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

outdoor temperature is lower than 0

℃

）

Note: when the ambient temperature is less than 8℃, inlet water temperature and temperature of plate heat exchanger is less than 2℃, crankcase heater of plate works. CP appears. If inlet water temperature and temperature of plate heat exchanger is more than 7℃, crankcase heater stops working and CP code disappears.

CL malfunction: To low water temperature protection in heating mode for 10-16kW.

LED displays CL

To low water temperature protection in heating mode.

Whether the 4-way valve switch can switch normally

Check whether the 4-way valve coil fall off and the valve body jammed.

Check whether 4-way valve coil and body jammed.

YES

Replace 4-way valve

YES

Pb malfunction: Anti-freeze protection

LED displays Pb

Determine the location again.

YES

Whether the thermometer bulb of water outlet and inlet location are right.

YES

Plug well

again

Replace main PCB

Replace main

PCB

Anti-freeze protection

The actual measured temperature of outdoor water outlet temperature and plate heat exchanger temperature is less than 3 ℃ in cooling mode. Water inlet temperature and plate heat exchanger temperature is less than 5 ℃ in heating mode and waiting mode.

Check whether water inlet sensor and plate heat exchanger is fall off or damaged.（especially when the

YES

Place temperature sensor to the related position or replace it.

Replace main PCB.

YES

Normal system protection

Note:

The actual measured temperature of outdoor water outlet temperature and plate heat exchanger temperature is less

than 3 ℃ in cooling mode, the compressor stops running. But the water pump continue operating. If the temperature i s more than 8

than 8 plate heat exchanger temperature is less than 5

normal.

℃, Pb code disappears.

The actual measured temperature of outdoor water inlet temperature and plate heat exchang er temperature is les s

℃ in waiting state, water pump works. The actual measured temperature of outdoor water inlet temperature and

℃, the unit enter heating mode in force. Compressor works too. This is

C8 malfunction: System water flow protection

pip

CP malfunction: Anti-idling protection for water pump

LED displays C8/CP

System water flow protection or anti-idling protection for water pump

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Whether system water flow leaks.

YES

Whether the water pipe is too long and not

connected to water pump.

Whether water system is stuck.

Whether water pump is damaged. Replace water pump.

Whether water flow switch is damaged.

Remove the water flow switch and close the fin manually to check whether malfunction still exists

Repair the leaks and add the water again.

YES

To configure external water pump

YES

Wash or replace the stuck components and

eline.

YES

Replace water flow switch.

Malfunction still exists.

YES

Replace main PCB

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

19. Optional Accessories

No. Name Specification

1 Wired controller KJR-120F/BMK-E (with Midea logo) Customized 2 Wired controller KJR-120F1/BMK-E (without Midea logo) Customized

Remark

Appendix

Accessories

Item Name of accessory Qty Shape

2 Rubber sealed ring 2

3 Outlet connection pipe 1

Installation and operation manual

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

4 Straight screwdriver 1 -----

Aqua Mini Full DC Inverter Unitary Chiller 50Hz

Temperature-Resistance characteristic sheet for pipe temperature sensor， ambient temperature sensor，inlet water temperature sensor and outlet water temperature sensor.

Sensor characteristic sheet Unit：Temp:℃--K, Ratio:KΩ

Temp. Ratio Temp. Ratio Temp. Ratio Temp. Ratio

-20 115.266 20 12.6431 60 2.35774 100 0.62973

-19 108.146 21 12.0561 61 2.27249 101 0.61148

-18 101.517 22 11.5 62 2.19073 102 0.59386

-17 96.3423 23 10.9731 63 2.11241 103 0.57683

-16 89.5865 24 10.4736 64 2.03732 104 0.56038

-15 84.219 25 10 65 1.96532 105 0.54448

-14 79.311 26 9.55074 66 1.89627 106 0.52912

-13 74.536 27 9.12445 67 1.83003 107 0.51426

-12 70.1698 28 8.71983 68 1.76647 108 0.49989

-11 66.0898 29 8.33566 69 1.70547 109 0.486

-10 62.2756 30 7.97078 70 1.64691 110 0.47256

-9 58.7079 31 7.62411 71 1.59068 111 0.45957

-8 56.3694 32 7.29464 72 1.53668 112 0.44699

-7 52.2438 33 6.98142 73 1.48481 113 0.43482

-6 49.3161 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 0.37956

-1 37.1988 39 5.39689 79 1.2133 119 0.36954 0 35.2024 40 5.17519 80 1.17393 120 0.35982 1 33.3269 41 4.96392 81 1.13604 121 0.35042 2 31.5635 42 4.76253 82 1.09958 122 0.3413 3 29.9058 43 4.5705 83 1.06448 123 0.33246 4 28.3459 44 4.38736 84 1.03069 124 0.3239 5 26.8778 45 4.21263 85 0.99815 125 0.31559 6 25.4954 46 4.04589 86 0.96681 126 0.30754 7 24.1932 47 3.88673 87 0.93662 127 0.29974 8 22.5662 48 3.73476 88 0.90753 128 0.29216 9 21.8094 49 3.58962 89 0.8795 129 0.28482

10 20.7184 50 3.45097 90 0.85248 130 0.2777 11 19.6891 51 3.31847 91 0.82643 131 0.27078 12 18.7177 52 3.19183 92 0.80132 132 0.26408 13 17.8005 53 3.07075 93 0.77709 133 0.25757 14 16.9341 54 2.95896 94 0.75373 134 0.25125 15 16.1156 55 2.84421 95 0.73119 135 0.24512 16 15.3418 56 2.73823 96 0.70944 136 0.23916 17 14.6181 57 2.63682 97 0.68844 137 0.23338 18 13.918 58 2.53973 98 0.66818 138 0.22776 19 13.2631 59 2.44677 99 0.64862 139 0.22231

Midea MGRH5A-PA1Z User Manual [ru]

Specifications and Main Features

Frequently Asked Questions

User Manual