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M-thermal Mono Series
Midea M-thermal Mono Series User Manual
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20
9.3 Electronic control box
Note:The picture is for reference only, please refer to the actual product.
Inverter module
control board(PCB A)
Main control board
of heat pump sysem(PCB B)
4/6kW
Main control board of hydraulic module
8/10kW
Main control board of hydraulic module
Inverter module
control board(PCB A)
Main control board
of heat pump sysem(PCB B)
22
24
Table of Contents
Contents
2
Product View
4
Safety Precautions
5
Domestic Hot Water Tank (Field Supply)
8
Room Thermostat
8
Operation Range
8
Before Installation
9
Handling
9
Important Information for the Refrigerant
10
Installation Site
11
Frequency of Refrigerant Leakage Checks
11
Selecting a Location in Cold Climates
12
Selecting a Location in Hot Climates
12
Installation Precautions
13
Dimensions
13
Installation Requirements
13
Drain Hole Position
14
Servicing Space Requirements
14
In Case of Stacked Installation
14
In Case of Multiple-Row Installation (for Roof Top Use, Etc.)
15
Typical Application
16
Space Heating
17
Domestic Water Heating
17
AHS (Auxiliary Heat Source) Control
17
TBH (Tank Booster Heater) Control/Solar Energy Control
17
One Zone Control
18
The Circulation Pumps Operation
18
Mode Set Control
19
Double Zone Control
20
Overview of the Unit
21
Disassembling the Unit
21
The Balance Tank Volume Requirement
21
Main Components
22
Hydraulic Module
22
Electronic Control Box
23
Main Control Board of Hydraulic Module
24
1-Phase for 4-16Kw Units
26
PCB B, Main Control Board of Heat Pump System
27
3-Phase for 12/14/16 Kw Units
28
PCB A, Inverter Module
28
PCB C, Filter Board
30
Controls Parts for Backup Heater
31
Water Piping
32
Check the Water Circuit
32
Water Volume and Sizing Expansion Vessels
33
Water Circuit Connection
34
Water Circuit Anti-Freeze Protection
34
Filling Water
35
Water Piping Insulation
36
Field Wiring
36
Precautions on Electrical Wiring Work
36
Wiring Overview
36
Precautions on Wiring of Power Supply
39
Safety Device Requirment
39
Field Wiring Guidelines
39
Remove the Switch Box Cover
41
Connection for Other Components
42
Room Thermostat Type2 (Low Voltage)
45
Start-Up and Configuration
48
Climate Related Curves
48
Temperature Curves for Heating Mode
48
DIP Switch Settings Overview
49
Function Setting
49
Temperature Curves for Cooling Mode
49
Initial Start-Up at Low Outdoor Ambient Temperature
50
Pre-Operation Checks
50
The Circulation Pump
51
Field Settings
52
Failure Diagnosis at First Installation
52
Powering on the Unit
52
DHW Mode Setting
53
Cool Mode Setting
53
Heat Mode Setting
54
Auto Mode Setting
54
Temp Sype Setting
54
Other Heating Source
55
Holiday Away Setting
55
Service Call Setting
55
Restore Factory Settings
56
Test Run
56
Special Function
57
Auto Restart
59
Power Input Limitation
59
Input Define
59
Setting Parameters
60
Test Run and Final Checks
63
Maintenance and Service
63
Final Checks
63
Test Run Operation (Manually)
63
Troubleshooting
64
General Symptoms
64
The Unit Is Turned on but the Unit Is Not Heating/Cooling as Expected
64
The Unit Is Turned on but the Compressor Is Not Starting
64
Pump Is Making Noise (Cavitation)
65
The Water Pressure Relief Valve Opens
65
The Water Pressure Relief Valve Leaks
65
Space Heating Capacity Shortage at Low Outdoor Temperatures
65
Operation Parameter
66
DHW Mode Can’t Change to Heat Mode Immediately
66
DHW Mode Heat Pump Stop Work but Setpoint Not Reached
66
Error Codes
68
Technical Specifications
76
Information Servicing
77
Checks to the Area
77
Checks to the Refrigeration Equipment
77
Checks to Electrical Devices
77
Repairs to Sealed Components
78
Cabling
78
Leak Detection Methods
78
Removal and Evacuation
78
Charging Procedures
79
Decommissioning
79
Recovery
79
Transportation, Marking and Storage for Units
79
Refrigerant Cycle
80
Electrically Controlled Wiring Diagrams
81
To Install the E-Heating Tape at the Drainage Outlet (by Client)
90
Other manuals for Midea M-thermal Mono Series
Engineering Data
113 pages
Service Manual
113 pages
4
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Midea M-thermal Mono Series Specifications
General
Brand
Midea
Model
M-thermal Mono Series
Category
Heat Pump
Language
English
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