Wolf FWS-2-60L Manual page 20

The following operating modes can be selected by means of wiring the pump differently:
A Temperature select screw
B Time switch with switching incre-
ments
C Function selector
To disable DHW circulation manually,
set function switch (C) to OFF.
Time-independent DHW circulation - Wiring Option A
In this mode, the DHW circulation pump is enabled by
briefly operating the hot water draw-off point and is shut
off by the built-in anti-scaling thermostat when the
preset DHW circulation return temperature is reached.
The time switch is not used with this mode (to avoid
continuous operation).
Set function selector (C) to ON.
1 Power supply (230 V - 50 Hz)
2 Flow switch (FLS)
3 Freshwater module primary pump (HT pump)
4
HE pump PWM signal
5
DHW circulation unit (CIRC PUMP)
Time-dependent DHW circulation - Wiring Option B
The DHW circulation pump is started by a separately
adjustable time switch. DHW circulation stops when the
preset DHW circulation return temperature is reached.
The pump cycling operation is thermostat-driven. DHW
circulation is disabled outside of the preset periods.
Set function selector (C) to TIMER.
20
Installing the BSP-ZP DHW circulation
module
B
A
=
4
=
~
2
Circ
=
4
=
~
2
Circ
C
~ ~
1
5 3
HE
~ ~
1
5 3
HE
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