Pcb Connection - Wolf BWL-1S-05 Installation And Operating Instructions Manual

22.4 HCM-3 PCB connection
Figure: HCM-3 PCB
44
Indoor module electrical connection
Z1
Netz HKP
Netz Z1 HKP
L1
L1 L1 N
eBUS 1(+), 2(-) WOLF control accessories
SF (5 k NTC cylinder sensor)
AF (5 k NTC outside sensor)
E2/SAF (5 k NTC header sensor SAF; alternatively 0-10 V activation by
e.g. BMS or activation via floating contact)
E1 (programmable input)
* A1 (programmable output
* 3-way diverter valve, heating/cooling
(output for 3-way diverter valve for heating/cooling mode)
* HCP (heating circuit pump activation of a direct heating circuit.
Note: only possible with specific configurations)
* Z1 (230 V output when ON/OFF switch is ON)
Power supply control
* Max. 1.5 A / 345 VA per output; sum of all outputs no more than 600 VA
Please
note
Please
note
A1
3WV A1
3WV
a b
L1 N L1
)
230 V AC
Only one external voltage of max. 10 V
may be connected to input E2/SAF,
otherwise the PCB will be destroyed.
1(a) = 10 V, 2(b) = GND
When installing the appliance in places where
there is a risk of increased electromagnetic
interference, it is advisable to fit screened
sensor leads and eBUS cables. The screen
should be terminated at one end to the PE
potential in the control unit.
230 V~
a b 1 2 1 2 + -
3064298_201805