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17
X2-2 (BRN) : L
X2-4 (BLU) : N
connect earth
X2
20
24
Set boiler parameter
=0
27
CHYHB*
4P471760-1 – 2016.12
18
Connect flue system to
top of boiler as described
in manual
21
25
X39A
C
X5
19
2x
2
22
26
Cause
Boiler parameter
is not set correctly
Software incompatibility
between boiler and
heat pump
X5
1
2
3
23
In case of UA-52 error
Possible solution
Set boiler parameter
correctly
Reprogram the boiler
X39A
X5
2x
Installation in a nutshell
2
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