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[ VIII Troubleshooting ]
3) Check the self-diagnosis switch (Outdoor control board SW4).
Measurement data
Liquid-side refrigerant temp. of
Heating-main heat exchanger
Liquid-side refrigerant temp. of
Cooling-main heat exchanger
Gas-side refrigerant temp. of
Heating-main heat exchanger
Gas-side refrigerant temp. of
Cooling-main heat exchanger
Bypass inlet temperature
Bypass outlet temperature
1st port returned water temp.
2nd port returned water temp.
3rd port returned water temp.
4th port returned water temp.
5th port returned water temp.
6th port returned water temp.
7th port returned water temp.
ON
1
2
3
4
5
6
7
8
9 10
HWE1410A
Symbol SW4 setting value
ON
TH11
1
2
3
4
5
6
7
ON
TH12
2
3
4
5
6
7
1
ON
TH13
1
2
3
4
5
6
7
ON
TH14
1
2
3
4
5
6
7
ON
TH15
1
2
3
4
5
6
7
ON
TH16
1
2
3
4
5
6
7
ON
T31a
1
2
3
4
5
6
7
ON
T31b
1
2
3
4
5
6
7
ON
T31c
2
3
4
5
6
7
1
ON
T31d
1
2
3
4
5
6
7
ON
T31e
1
2
3
4
5
6
7
ON
T31f
2
3
4
5
6
7
1
ON
T31g
1
2
3
4
5
6
7
The figure at left shows that the switches 1 through 5 are set to ON and 6 through 10 are set to OFF.
Measurement data
8th port returned water temp.
8
9 10
Outlet water temp.
of Heating-main heat exchanger
8
9 10
Outlet water temp.
of Cooling-main heat exchanger
8
9 10
Water pump 2 discharge
water temp.
8
9 10
Water pump 1 discharge
water temp.
8
9 10
9th port returned water temp.
8
9 10
10th port returned water temp.
8
9 10
11th port returned water temp. TH31k
8
9 10
12th port returned water temp. TH31l
8
9 10
13th port returned water temp. TH31m
8
9 10
14th port returned water temp. TH31n
8
9 10
15th port returned water temp. TH31o
8
9 10
16th port returned water temp. TH31p
8
9 10
- 171 -
Symbol SW4 setting value
ON
T31h
1
2
3
4
5
6
7
8
9 10
ON
TH32
2
3
4
5
6
7
8
9 10
1
ON
TH33
1
2
3
4
5
6
7
8
9 10
ON
TH34
1
2
3
4
5
6
7
8
9 10
ON
TH35
1
2
3
4
5
6
7
8
9 10
ON
TH31i
1
2
3
4
5
6
7
8
9 10
ON
TH31j
1
2
3
4
5
6
7
8
9 10
ON
1
2
3
4
5
6
7
8
9 10
ON
2
3
4
5
6
7
8
9 10
1
ON
1
2
3
4
5
6
7
8
9 10
ON
1
2
3
4
5
6
7
8
9 10
ON
2
3
4
5
6
7
8
9 10
1
ON
1
2
3
4
5
6
7
8
9 10
GB
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Troubleshooting
