62
Electrical connections
External backup heater
Enabling on dip-switch; configuration on HMI
14
IBH1
17
IBH1
(IBHX)
7.6.2 Terminal block CN7
Unit in operation signal
Type2 control signal
Defrosting state or alarm state
Type1 control signal
Enabling and configuration on HMI
Antifreeze heater for pipes
Type2 control signal
Additional boiler
The boiler can be controlled in two ways
1. ON-OFF control The setpoint must be set on the boiler
keypad
2. ON-OFF consent + 0-10 V signal The setpoint is managed
directly by the unit
Enabling on dip-switch; configuration on HMI
Connect probe T1, boiler input, optional.
L
NOTE
Where HMI enabling is required, refer to the specific chapter.
Fuse
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