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 configurations)
* 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 fit 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
V
AC
≤
24
V