Installation and operating instruction
Gas condensing unit WTC-GB 15-B Compact and WTC-GB 25-B Compact
5 Installation
83309302 1/2018-05 La
51-196
5.7.3 Connect external pump
Observe the instructions for the electrical installation [ch. 5.7].
Depending on the hydraulic variant selected, the outputs are pre-assigned, the
function can then not be changed [ch. 12.1].
If the external pump is connected via VA, an additional module is required.
Connect pump to output MFA1 or VA1/2 according to the wiring diagram.
B1
1 M
B2
1 M
B3
1 M
230V
L N
L N PE
max 16A
L H1H2
H1/H2
L N
MFA1
L N
230V
1 2 M
T1/2
1 M
N1
1 2 M
P 1 2
VA1/2