ESIE15-08B
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Part 2. Troubleshooting
4. Component checklist - Water Circuit
Page 80
19/07/16
Daikin Altherma Monobloc CA
1.
Switch off the Daikin Altherma Monobloc CA via the user interface.
2.
Switch off the Daikin Altherma Monobloc CA with the field supplied circuit breaker.
3.
Remove the front panel of the BUH kit.
4.
Loosen and remove the 2 screws that fix the thermal protector backup heater bracket.
5.
Disconnect the wiring from the thermal protector backup heater Q1L.
6.
Measure the circuit breakers between Q1L terminals 11 - 12, Q1L terminals 21 - 22 and Q1L terminals 31 - 32, all circuit
breakers must be closed.
7.
If one or more measurements fail, replace the thermal protector backup heater Q1L.
Electrical check
W
ARNING
: R
ISK
OF
F
IRE
•
When reconnecting a connector to the PCB, do not apply force or damage the connector or the connector pins on
the PCB.
11
1
1
1
11
11
11
11
11
11
11
2
2
2
21
21
21
1
2
2
2
2
21
2
2
2
2
2
21
2
2
2
2
1
31
31
31
31
31
1
1
31
1
1
31
31
3
1
1
1
1
12
12
1
12
1
1
22
22
2
22
2
22
2
2
2
3
32
32
32
32
2
2
2
2
32
2
2
2
3
3
2
32
2
14
14
1
14
14
1
4
24
24
24
24
24
24
2
34
34
34
34
4
34
3
34
34
3
34
3
3
