Midea M-Thermal A Series User manual

M-Thermal A Series Split
Commercial Air Conditioners
R32
Service
Manual
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Confidential

M thermal Split
202004 1
CONTENTS
CONTENTS
Part 1 General Information ............................................................................ 3
Part 2 Component Layout and Refrigerant Circuits ..................................... 7
Part 3 Control ............................................................................................... 17
Part 4 Diagnosis and Troubleshooting ......................................................... 31
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M thermal Split
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Midea M thermal Split
Service Manual
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M thermal Split
202004 3
Part 1
-
General Information
Part 1
General Information
1 Unit Capacities ........................................................................................... 4
2 External Appearance .................................................................................. 5
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Midea M thermal Split
Service Manual
1 Unit Capacities
1.1 Outdoor Unit Capacities
Table 1-1.1: Capacity range
Capacity 4kW 6kW 8kW 10kW 12kW 14kW 16kW
Model1
(MHA-*/D2N8-B)
V4W V6W V8W V10W V12W V14W V16W
Model
1
(MHA-*/D2RN8-B)
/ / / / V12W V14W V16W
Notes:
The full model names can be obtained by substituting the asterisk in the model name format given in the left-hand column of the table above with the shortened
model names given in the table. For example, the model name for the 10kW model is MHA-V10W/D2N8-B.
1.2 Hydronic Box Model
Table 1-1.2: Model
Model
1
HB-A60/CGN8-B HB-A100/CGN8-B HB-A160/CGN8-B
Compatible OU model MHA-V4(6)W/D2N8-B MHA-V8(10)W/D2N8-B MHA-V12(14,16)W/D2N8-B
MHA-V12(14,16)W/D2RN8-B
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Part 1
-
General Information
2 External Appearance
2.1 Outdoor Unit Appearance
Table 1-2.1: Outdoor unit appearance
MHA-V4(6)W/D2N8-B MHA-V8(10,12,14,16)W/D2N8
MHA-V12(14,16)W/D2RN8
2.2 Hydronic Box Appearance
Table 1-2.2: Hydronic box appearance
HB-A60/CGN8-B HB-A100/CGN8-B HB-A160/CGN8-B
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Midea M thermal Split
Service Manual
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M thermal Split
Part 2
-
Component Layout
and
Refrigerant Circuits
Part 2
Component Layout and
Refrigerant Circuits
1 Layout of Functional Components ......................................................... 8
2 Piping Diagrams .................................................................................. 13
3 Refrigerant Flow Diagrams .................................................................. 15
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M thermal Split
Midea M thermal Split
Service Manual
1 Layout of Functional Components
1.1 Outdoor Unit Layout
MHA-V4W/D2N8-B / MHA-V6W/D2N8-B
Figure 2-1.1: MHA-V4(6)W/D2N8-B top view
Figure 2-1.2: MHA-V4(6)W/D2N8-B front view
8 202004
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M thermal Split
Part 2
-
Component Layout
and
Refrigerant Circuits
MHA-V8W/D2N8-B / MHA-V10W/D2N8-B
Figure 2-1.3: MHA-V8(10)W/D2N8-B top view
Figure 2-1.4: MHA-V8(10)W/D2N8-B front view
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