Midea M-thermal Mono Series - Page 98

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Contents2
Product View4
Safety Precautions5
Domestic Hot Water Tank (Field Supply)8
Room Thermostat8
Operation Range8
Before Installation9
Handling9
Important Information for the Refrigerant10
Installation Site11
Frequency of Refrigerant Leakage Checks11
Selecting a Location in Cold Climates12
Selecting a Location in Hot Climates12
Installation Precautions13
Dimensions13
Installation Requirements13
Drain Hole Position14
Servicing Space Requirements14
In Case of Stacked Installation14
In Case of Multiple-Row Installation (for Roof Top Use, Etc.)15
Typical Application16
Space Heating17
Domestic Water Heating17
AHS (Auxiliary Heat Source) Control17
TBH (Tank Booster Heater) Control/Solar Energy Control17
One Zone Control18
The Circulation Pumps Operation18
Mode Set Control19
Double Zone Control20
Overview of the Unit21
Disassembling the Unit21
The Balance Tank Volume Requirement21
Main Components22
Hydraulic Module22
Electronic Control Box23
Main Control Board of Hydraulic Module24
1-Phase for 4-16Kw Units26
PCB B, Main Control Board of Heat Pump System27
3-Phase for 12/14/16 Kw Units28
PCB A, Inverter Module28
PCB C, Filter Board30
Controls Parts for Backup Heater31
Water Piping32
Check the Water Circuit32
Water Volume and Sizing Expansion Vessels33
Water Circuit Connection34
Water Circuit Anti-Freeze Protection34
Filling Water35
Water Piping Insulation36
Field Wiring36
Precautions on Electrical Wiring Work36
Wiring Overview36
Precautions on Wiring of Power Supply39
Safety Device Requirment39
Field Wiring Guidelines39
Remove the Switch Box Cover41
Connection for Other Components42
Room Thermostat Type2 (Low Voltage)45
Start-Up and Configuration48
Climate Related Curves48
Temperature Curves for Heating Mode48
DIP Switch Settings Overview49
Function Setting49
Temperature Curves for Cooling Mode49
Initial Start-Up at Low Outdoor Ambient Temperature50
Pre-Operation Checks50
The Circulation Pump51
Field Settings52
Failure Diagnosis at First Installation52
Powering on the Unit52
DHW Mode Setting53
Cool Mode Setting53
Heat Mode Setting54
Auto Mode Setting54
Temp Sype Setting54
Other Heating Source55
Holiday Away Setting55
Service Call Setting55
Restore Factory Settings56
Test Run56
Special Function57
Auto Restart59
Power Input Limitation59
Input Define59
Setting Parameters60
Test Run and Final Checks63
Maintenance and Service63
Final Checks63
Test Run Operation (Manually)63
Troubleshooting64
General Symptoms64
The Unit Is Turned on but the Unit Is Not Heating/Cooling as Expected64
The Unit Is Turned on but the Compressor Is Not Starting64
Pump Is Making Noise (Cavitation)65
The Water Pressure Relief Valve Opens65
The Water Pressure Relief Valve Leaks65
Space Heating Capacity Shortage at Low Outdoor Temperatures65
Operation Parameter66
DHW Mode Can’t Change to Heat Mode Immediately66
DHW Mode Heat Pump Stop Work but Setpoint Not Reached66
Error Codes68
Technical Specifications76
Information Servicing77
Checks to the Area77
Checks to the Refrigeration Equipment77
Checks to Electrical Devices77
Repairs to Sealed Components78
Cabling78
Leak Detection Methods78
Removal and Evacuation78
Charging Procedures79
Decommissioning79
Recovery79
Transportation, Marking and Storage for Units79
Refrigerant Cycle80
Electrically Controlled Wiring Diagrams81
To Install the E-Heating Tape at the Drainage Outlet (by Client)90

Midea M-thermal Mono Series - Page 98

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