Mitsubishi Electric HP120TNU-A Service Handbook page 276

R410a
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[8-9 Troubleshooting Problems with Major Components on BC Controller ]
KB
(Sub 10)
KB
(Sub 11)
ON
1
2
3
4
5
6
7
8
9 10
HWE18220_GB
Measurement data
Symbol
Bypass outlet
TH12
temperature
Bypass inlet
TH15
temperature
Bypass inlet
TH16
temperature
Bypass outlet
TH12
temperature
Bypass inlet
TH15
temperature
Bypass inlet
TH16
temperature
The figure at left shows that the switches 1 through 5 are set to ON and 6 through 10 are set to OFF.
SW4 setting value
SW6 setting value
ON
ON
1
2
3
4
5
6
7
8
9 10
1
2
3
ON
ON
1
2
3
4
5
6
7
8
9 10
1
2
3
ON
ON
1
2
3
4
5
6
7
8
9 10
1
2
3
ON
ON
1
2
3
4
5
6
7
8
9 10
1
2
3
ON
ON
1
2
3
4
5
6
7
8
9 10
1
2
3
ON
ON
1
2
3
4
5
6
7
8
9 10
1
2
3
4
5
6
7
8
9 10
4
5
6
7
8
9 10
4
5
6
7
8
9 10
4
5
6
7
8
9 10
4
5
6
7
8
9 10
4
5
6
7
8
9 10
chapter 8 -
35

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