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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 600
Ventilation unit
AB
Exhaust air
AU
Outside air
ZU
Supply air
FO
Outgoing air
R1
Temperature sensor
S1
Air flow monitor sensor
Electric air heater (preheating register)
DRH 25-6
Standard
ERH 25-2
Alternative for application
areas up to max. 450 m³/h
If the outside air temperature gets too cold,
the external frost protection heating of the
DRH 25-6 or ERH 25-2 switches on and
guarantees an uninterrupted ventilation
operation.
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 and
i
R1 must be maintained.
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