Control Pcb Connection - Wolf BWL-1 S Installation And Operating Instructions Manual

25.3 HCM-3 control PCB connection
40
25. Power supply to the indoor module
Fig: HCM-3 control PCB
eBus 1(+), 2(-) Wolf control accessories
T_DHW (5kNTC cylinder sensor)
T_outside (5kNTC outside temperature sensor)
E2/SAF (5kNTC header sensor SAF;
alternatively 0-10V- switching by e.g. BMS)
E1 (programmable input)
* A1 (programmable output
* 3 WUV / heating/cooling
(output for three-way diverter valve for heating/cooling mode)
* H CP (Switching of heating circuit pump for one direct heating
circuit, note: Only possible with certain configurations)
* Z1 (230V output when ON/OFF switch is ON)
Control unit power supply
* M ax. 1.5 A / 345 VA per output, sum of all outputs no more than
600 VA
Only one external voltage of max. 10 V may
Please note
be connected to input E2/SAF, otherwise the
control PCB will be destroyed. 1(a) = 10 V,
2(b) = GND
When installing the appliance in places
Please note
where there is a risk of high electromagnetic
interference, it is advisable to fit shielded
sensor and eBUS cables. The cable shield
should be connected at one end to the PE
potential in the control unit.
)
230VAC
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