Wolf BWL-1 S - Control PCB Connection

40 3064298_201507
25. Power supply to the indoor module
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
230VAC)
*3WUV/heating/cooling
(output for three-way diverter valve for heating/cooling mode)
*HCP(Switchingofheatingcircuitpumpforonedirectheating
circuit, note:Onlypossiblewithcertaincongurations)
*Z1(230VoutputwhenON/OFFswitchisON)
Control unit power supply
*Max.1.5A/345VAperoutput,sumofalloutputsnomorethan
600 VA
25.3 HCM-3 control PCB connection
Fig: HCM-3 control PCB
Only one external voltage of max. 10 V may
be connected to input E2/SAF, otherwise the
control PCB will be destroyed. 1(a) = 10 V,
2(b) = GND
Please note
When installing the appliance in places
where there is a risk of high electromagnetic
interference,itisadvisabletotshielded
sensor and eBUS cables. The cable shield
should be connected at one end to the PE
potential in the control unit.
Please note
230 VAC ≤24V