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Midea MGRH12A-PA3Z [95/96] Appendix
![Midea MGRH12A-PA3Z [95/96] Appendix](/views2/2006310/page95/bg5f.png)
Aqua Mini Full DC Inverter Unitary Chiller 50Hz
95
Appendix
Accessories
Item Name of accessory Qty Shape
1
Installation and
operation manual
1
2 Rubber sealed ring 2
3 Outlet connection pipe 1
4 Straight screwdriver 1 -----
Содержание
- Applicable model 1
- Midea r 410a 50hz aqua mini full dc inverter unitary chiller 1
- Content 2
- Mgrh10a pa1z mgrh12a pa3z 3
- Mgrh14a pa3z mgrh16a pa3z 3
- Mgrh5a pa1z mgrh7a pa1z 3
- Outdoor units lineup 3
- And reduces running noise 4
- Enables the output of the outdoor unit to be modulated by the real heat load demands 4
- Exchange efficiency 4
- Exchange performance 4
- Features 4
- Full dc inverter mini chiller adopts highly intelligent inverter driven compressor this advanced technology 4
- High efficient dc inverter compressor 4
- High performance heat exchanger 4
- Hydrophilic film fins and inner threaded copper pipes optimize heat 4
- Low operating sound design 4
- Optimally design fan shape and new designed discharge air grille and air deflector making higher air volume 4
- Significant contribution to limiting the impact on the environment 4
- The new designed window fins enlarge the heat exchanging area 4
- This advanced system ensures precise temperature regulation and highly efficient energy usage making a 4
- Which decrease the air resistance save more power and enhance heat 4
- Cooling mode 5
- Heating mode 5
- Wide operation temperature range 5
- Aqua mini full dc inverter unitary chiller 50hz 7
- Check button for 3 seconds again to stop the water pump 7
- Fast respond resulting in higher efficiency and improved reliability 7
- Press check button for 3 seconds to start the water pump operating when the unit is standby press 7
- Water pump starts stops compulsory function 7
- Description of main components 8
- Electrical panel 12 high pressure switch 13 4 ways valve 14 expansion tank 15 pump 16 low pressure switch 17 storage tank 18 compressor 19 water supply valve 9
- Operation panel 2 water manometer 3 automatic discharge valve 4 axial flow fan 5 differential pressure switch 6 condenser 7 accumulater 8 security discharge 9 electric expansive valve 10 plate heat exchanger 9
- 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 10
- Specifications 10
- 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 11
- Note specifications are based on the following conditions 11
- 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 12
- Dimensions 14
- Mgrh10a pa1z mgrh12a pa3z mgrh14a pa3z mgrh16a pa3z unit mm 14
- Mgrh5a pa1z mgrh7a pa1z unit mm 14
- Accumulator 12 low pressure switch 13 crankcase heater 15
- Compressor 2 high pressure switch 3 4 way value only heap pump 4 condenser 5 filter 15
- Electronic expansive valve 7 liquid receiver 8 plate heat exchanger 9 frost heater 10 water temperature sensor 15
- Heat pump 15
- Mgrh10a pa1z mgrh12a pa3z mgrh14a pa3z mgrh16a pa3z 15
- Mgrh5a pa1z mgrh7a pa1z 15
- Piping diagram 15
- Mgrh5a pa1z mgrh7a pa1z 16
- Wiring diagram 16
- Mgrh10a pa1z 17
- Mgrh12a pa3z mgrh14a pa3z mgrh16a pa3z 18
- Electric characteristics 19
- Aqua mini full dc inverter unitary chiller 50hz 20
- Capacity tables 20
- Heating 20
- Mgrh5a pa1z cooling 20
- Note the inlet outlet water temperature difference is 5 c 20
- Aqua mini full dc inverter unitary chiller 50hz 21
- Heating 21
- Mgrh7a pa1z cooling 21
- Note the inlet outlet water temperature difference is 5 c 21
- Aqua mini full dc inverter unitary chiller 50hz 22
- Cooling 22
- Heating 22
- Mgrh10a pa1z 22
- Note the inlet outlet water temperature difference is 5 c 22
- Aqua mini full dc inverter unitary chiller 50hz 23
- Cooling 23
- Heating 23
- Mgrh12a pa3z 23
- Note the inlet outlet water temperature difference is 5 c 23
- Aqua mini full dc inverter unitary chiller 50hz 24
- Cooling mgrh14a pa3z 24
- Heating 24
- Note the inlet outlet water temperature difference is 5 c 24
- Aqua mini full dc inverter unitary chiller 50hz 25
- Cooling 25
- Heating 25
- Mgrh16a pa3z 25
- Note the inlet outlet water temperature difference is 5 c 25
- A ethylene glycol solutions 26
- Delivery water temperature 26
- Heating 26
- Operation limits 26
- 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 26
- B fouling factors 27
- 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 27
- 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 27
- Mgrh10a pa1z 28
- Mgrh5a pa1z mgrh7a pa1z 28
- Water pressure drop 28
- Mgrh12a pa3z 29
- Mgrh14a pa3z 29
- Mgrh16a pa3z 30
- M ic ro 31
- O u td o o r u n it 31
- Sound level 31
- Exploded view 32
- Mgrh5a pa1z mgrh7a pa1z 32
- 28 28 28 28 33
- Mgrh10a pa1z 34
- Mgrh12a pa3z mgrh14a pa3z mgrh16a pa3z 36
- A installation of general information 38
- Fundamental safety rules 38
- General warning 38
- Installation 38
- B installation of outdoor unit choice of installation site 39
- Positioning 39
- C installation space units mm 40
- Connecting drawing of pipeline system for mgrh5a pa1z mgrh7a pa1z 41
- D hydraulic connection 41
- Factory connections site connections 41
- For mgrh10a pa1z mgrh12a pa3z mgrh14a pa3z mgrh16a pa3z 41
- 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 41
- Water inlet 41
- Water outlet 41
- E design of the store tank in the system 42
- F chilled water flow 42
- Auto water replenishing orifice 45
- Security discharge 45
- Security discharge water inlet 45
- Water inlet 45
- Water outlet 45
- 7kw 10 16kw 46
- I electrical connection 46
- J electrical power connection 47
- N l gnd 47
- N c gnd b a 48
- Switch 2 50
- Checking and starting up the unit 51
- Preparing for first start up 51
- A operating characteristics 53
- Running and maintenance 53
- B routine maintenance 54
- C extraordinary maintenance 54
- D shutting down for long periods 55
- Controller 56
- Standard controller 56
- ② ③ ④ ⑤ ⑥ 56
- A touch key operation 60
- B lcd displays operation parameters 60
- C multiple timer 60
- D real time clock battery life 5 8 years 60
- Display when the unit is off 60
- Features 60
- Operation icon indicate unit on and off status the icon displays when the unit is on and does not 60
- Optional wired controller kjr 120f bmk e kjr 120f1 bmk e 60
- Overview 60
- 00 8 00 10 00 12 00 18 00 22 00 65
- 00 8 00 7 00 12 00 65
- Cancel timing press and hold cancel key for 3 seconds then all the effective timing periods will be 65
- Cancelled 65
- Check timing information to check the timing which has been set press or 65
- Correct 65
- During any period of timing setting to press ok key the timing periods which have been set will be 65
- Effective only if the on and off of one timing period have been set the setting is effective 65
- Example of timing setting 65
- Key under main page 65
- Note correct to avoid timing error each period of timing should not be crossed e g 65
- The on and off time of timer1 timer 2 and timer3 will be displayed in turns 65
- Check content when wired controller setting is 1 68
- The checking content is the same as the pcb s checking 68
- Pcb parts instructions 69
- Pfc ipm panel 69
- Troubleshooting 69
- A fuse 6 to ipdu 7 to pfc 8 70
- Main control panel 70
- Power l 2 power n 3 70
- Temperature sensor tp 23 outle 70
- Mgrh10a pa1z main control panel 72
- Transformer output port 2 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 3 radiator temperature sensor port reserved t6 4 discharge temperature sensor port 5 outlet of outdoor heat exchanger temperature sensor port t3 5 ambient temperature sensor port t4 6 operation and display panel port 7 low pressure switch 7 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 port n 14 ground wire 72
- 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 74
- Mgrh12a pa3z mgrh14a pa3z mgrh16a pa3z main control panel 74
- 4 5 6 7 76
- Ipm module 76
- Filter board 77
- For 10kw 77
- Function setting dial switches 77
- Instructions for 5 7kw 77
- 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 or to query the relative parameters 78
- 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 and simultaneously to quit parameter query manually 78
- For 12 16kw 78
- Query content table 78
- Query function for the built in controller 78
- Error code 80
- Error code content note 80
- Error code content note 81
- 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 82
- H0 malfunction communication malfunction between main chip and ipdu 82
- 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 83
- E5 malfunction voltage protection malfunction 83
- E6 malfunction dc fan motor malfunction 84
- P1 malfunction high pressure protection 85
- Whether the heat exchanger needs cleaning 85
- P2 low pressure protection 86
- P3 compressor current protection 87
- P4 compressor discharged temperature protection 88
- P5 condenser high temperature protection 89
- Replace outdoor main pcb 89
- P6 ipm module protection 90
- 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 91
- P8 typhoon protection 91
- Cl malfunction to low water temperature protection in heating mode for 10 16kw 92
- Note 1 92
- Pb code disappears 2 92
- Pb malfunction anti freeze protection 92
- C8 malfunction system water flow protection cp malfunction anti idling protection for water pump 93
- Optional accessories 94
- Accessories 95
- Appendix 95
- Sensor characteristic sheet unit temp k ratio k ω 96
- Temperature resistance characteristic sheet for pipe temperature sensor ambient temperature sensor inlet water temperature sensor and outlet water temperature sensor 96
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