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Heat Pump
ESG-Inv M Series
Page 20
Midea ESG-Inv M Series - Page 20
80 pages
Manual
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ESG
-
In
v M
19
Part
3
-
Component La
yout and R
efriger
ant Cir
cuits
2
Piping Diagr
ams
Refrig
eran
t piping graph
ic ex
am
ple:
High t
empera
tur
e, high pr
essure g
as
High t
empera
tur
e, high pr
essure liquid
Low temp
eratur
e, low press
ure gas
liquid mixtur
e
Low temp
eratur
e, low press
ure gas
Heating mode
Cooling/Defrost mode
MBT Confidential
19
21
Table of Contents
Main Page
Table of Contents
2
Part 1 General Information
4
Part 2 Engineering Data
6
1 Specifications
7
3 Dimensions and Center of Gravity
9
4 Operating Limits
9
5 Heating Performance
10
6 Hydronic Performance
13
7 Octave Band Sound Level
14
Part 3 Component Layout and Refrigerant Circuits
18
Part 4 Control
22
Part 5 Diagnosis and Troubleshooting
28
Esg-Inv M
34
Ba Ambient Temp. Sensor (T4) out of Operation Range
36
C7 High Temperature Protection of Inverter Module
37
E2 Communication Malfunction between Controller and Main Control Board
39
Ed Inlet Water Temperature Sensor (TW-In) Malfunction
40
H4 Three Times L0 Protection
46
H6 the DC Fan Malfunction
47
H7 Voltage Protection
48
H8 HP Pressure Sensor Malfunction
50
Hb Three Times PP Protection and TW-Out below
51
HP Low Pressure Protection in Cooling Mode
53
P0 Low Pressure Switch Protection
53
P1 High Pressure Switch Protection
55
P3 Compressor Overcurrent Protection
57
P5 |TW-Out-TW-In| Value too Big Protection
59
Pb Anti-Freeze Mode
61
Part 6 Parts Replacement
72
Wired Controller
75
Flow Switch
76
Compressor
77
Titanium Heat Exchanger
78
Inverter Module PCB
79
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