Connection Option 6: With; Differential Pressure Controller; Connection Option 7: With - Maico WS 170 L Notice D'installation

6.13 Connection option 6: WS 170
with RLS 1 WR or RLS D1 WR
and differential pressure controller
 Wiring diagram in appendix
Parallel operation
of fireplace and
ventilation unit
The differential pressure controller P is
a safety device which allows a ventilation
system to be operated at the same time
as an air-ventilated fireplace.
The differential pressure controller (e.g.
Wodtke DS 01) prevents a ventilation
unit that is connected to this safety
device being operated, if there is
negative pressure between the waste
gas pipe and the living room.
The potential-free relay contact (opener) in
the differential pressure controller switches
the fans in the ventilation unit off, if required.
Relay contact k is connected in series to the
fans' supply voltage for this purpose.
When selecting the differential pressure
controller, note the technical data of the
switching output (potential-free relay
contact k). Minimum switching capacity:
230 V AC, 2A
The connection between the differential
pressure controller and ventilation unit is
made with W5 connection cable.
The potential-free relay contact k of the
differential pressure controller P is connected
to control circuit board A2 at terminals "N"
and " ".
Before this, the jumpers on the terminals "N"
and " " on the A2 control circuit board must
be removed.
6. Installation ‒ Connection options │ uk
A WS 170 electronic slide-in module
A2 Control circuit board: Jumper 8 bridged
(= factory setting)
B RLS D1 WR room air control
B1 RLS 1 WR room air control
P Differential pressure controller with
potential-free relay contact k
(provided by customer)
k Switching output, potential-free
relay contact
W5 Connection cable for differential
pressure controller (provided by
customer)
If there is negative pressure in the
room, the differential pressure
controller switches the fans in the
ventilation unit off.
This blocks the RLS 1 WR room air
control (the LED display goes out).
The unit is only released again when
the differential pressure controller
switches the fans back on. The venti-
lation unit runs at the same ventila-
tion level as before it was blocked.
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