Panasonic U-8ME1E81 Service Manual page 18
2way vrf system
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Also See for U-8ME1E81:
- Service manual (106 pages) ,
- Installation instructions manual (220 pages) ,
- Operating instructions manual (180 pages)
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3. Compressor Control
3. Compressor Control
3-7-4. Primary current protection of HIC board
The fan motor current is included in primary current. PCB is protected from the power consumption increase of
fan motor when the heat exchanger is blocked by frost, etc.
Limit current 1
Primary
Max. current 1 H
1
1
current
Max. current 1 L
Limit current 1
Max. current 1H
Max. current 1L
*When restarting after stopping by protection control, the compressor capacity will increase slowly.
Reference
Inverter layout
Power Source
8HP
15.1
12.1
11.1
Stop
If this current is detected at regular intervals, alarm appears.
Frequency of inverter compressor goes down.
Frequency of inverter comp ressor cannot increase.
Frequency of inverter compressor can increase.
Noise Filter
Magnet SW
L1
L2
L3
Primary CT
10HP
12HP
14HP
19.8
18.0
21.0
16.8
15.0
18.0
15.8
14.0
17.0
Diode Bridge
Noise Filter
1 - 10
1 - 10
2WAY SYSTEM
2WAY SYSTEM
Control Functions-Outdoor Unit
Control Functions - Outdoor Unit
unit : Amp.
16HP
18HP
20HP
21.0
21.0
21.0
18.0
18.0
18.0
17.0
17.0
17.0
Secondary CT
IPM(CM)
U
Compressor
V
W
IPM(FN)
U
Fan Motor
V
W
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- Indoor Unit
- Outdoor Unit
- Service Manual
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