aerex Reco-Boxx RB 300 Montage- Und Betriebsanleitung Seite 86

Connection option 6:
Ventilation unit+ Room air control +
Electrical air heater. Refer also to the
wiring diagram in the appendix.
If the heat recovery unit is installed in a
passive-energy house, pre-heating
(Preheating register) of the outside air is
necessary, in order to guarantee a
permanent air exchange.
It warms up cold outside air and keeps the
heat exchanger free of frost. The switch-on
temperature of the TH 10 should be set to
-3 °C.
Connection plan
RB... Ventilation unit
AB Exhaust air
AU Outside air
ZU Supply air
FO Outgoing air
R1 Temperature sensor
ERH Electric air heater
(preheating register)
S1 Air flow monitor sensor
84
If the outside air temperature gets too cold,
the external frost protection heating of the
ERH 16-2 switches on and protects the
RB 300/RB 400 heat exchanger against
icing up.
The switch-off difference should be set to 5 K.
Optionally, the switch-on temperature can be
adjusted manually using the setting wheel at
the TH 10.
The minimum distance for S1
i
and R1 must be maintained.