Installation and operating instruction
Gas condensing unit WTC-GB 15-B Compact and WTC-GB 25-B Compact
12 Technical documentation
83309302 1/2018-05 La
152-196
12.3 Control options
Temperature remote control 0 … 10 V
N1
1 M
An additional module is required for temperature remote control.
Connect analogue signal 0 … 10 V to input N1, observe the polarity [ch. 5.7.1].
Signal is interpreted as flow setpoint.
3 V
Minimum flow temperature (P
4.3
)
10 V
Maximum flow temperature (P
4.4
)
2 … 3 V
Burner off
<2 V
Signal fault (after approx. 15 minutes
F 80
)
The voltage limits for burner shutdown and error message can be adapted
[ch. 6.6.3].
Heating mode with special level
When input H1 is closed, the system heats up to the temperature level preset para-
meter
Special level
,see [ch. 6.5.3]. Higher target values of additional heat-
ing circuits will be taken into consideration. DHW mode is generally given priority.
When the contact is open, the temperature is determined according to the existing
control variation.
This function is also effective in the Summer mode.
Set
Function input H1
to
Heating circuit 1: special
level