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RLS 45 K room air control is used to activate
PPB 30 O or PPB 30 K units.
1. Take off frame of room air control.
2. Connect PPB 30 O to the RLS 45's FAN1
and FAN 2 connection terminals. Connect
PPB 30 K units to RS 485 bus.
The power supply to the PPB 30 K
i
(+) MUST come from the Fan1 or
Fan2 connection. Connect accord-
ing to wiring diagram ( Appendix).
A combination of PPB30 O and PP 45
i
units is not permitted at the FAN1 and
FAN2 connection terminals of the RLS
control.
No exhaust air function is possible
i
for PPB 30 O units on an RLS 45 K
control.
If a PPB 30 K unit is running in exhaust
i
air mode, the PP 45/PPB 30 O units
handle the volumetric flow compensa-
tion at the fan interface (Fan1/Fan2). It
is important that the unit type + quantity
are set correctly.
3. Insert room air control in the recessed-
mounted box and screw down to re-
cessed-mounted box with 2 screws.
4. Fit frame. Ensure that the sensor opening
is above the PP 45 HYI (if fitted) and that
the frame engages.
5. Start up ventilation system Chapter 10.
9.8 Installing PP 45 HYI humidity sensor
in
RLS 45 O or RLS 45 K
1. Install room air control as described in
Chapter 9.7.
NOTICE
Unit damage/no function if the humidity
sensor is installed incorrectly. Do not bend
pins. Insert sensor up to stop in bush.
2. Insert PP 45 HY humidity sensor at I2C
interface Arrow.
3. Fit frame so that it engages.
Ensure that sensor opening (hole in
i
frame) is above the PP 45 HYI sensor.
4. Start up ventilation system and register
humidity sensor in service mode Chap-
ter 10.
5. For installation and wiring of an external
sensor Commissioning instructions.
9 Mounting | UK
37
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