Renovent Excellent 450 614784-F
Chapter 4 Operation
4.2 Bypass conditions
The standard bypass valve makes it possible to supply fresh
outside air that is not heated by the heat exchanger. Particu-
larly during summer nights it is desirable to supply cooler out-
side air.
Then the hot air in the dwelling is replaced by cooler outside air
in so far as possible.
The bypass valve opens and closes automatically when a num-
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pass conditions).
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ber 5, 6 and step number 7 in the settings menu (see chapter
13).
4.3 Frost protection
To prevent freezing of the heat exchanger at extremely low out-
door temperatures, the Renovent Excellent features intelligent
frost control. Temperature sensors measure the temperatures
across the heat exchanger and, if necessary, the preheater is
switched on. That guarantees a proper ventilation balance,
also at very low outdoor temperatures. If, with switched on
preheater, the exchanger temperature still starts to drop below
zero, stepless unbalance is created in the appliance.
Bypass valve conditions
Bypass valve open
- The outdoor temperature is higher than 7°C
and
- the outdoor temperature is lower than the indoor temperature in the dwelling
and
- the temperature in the dwelling is higher than the temperature set at step no. 5 in the set-
tings menu (set standard at 24°C).
Bypass valve closed
- The outdoor temperature is lower than 7°C
or
- the outdoor temperature is higher than de indoor temperature in the dwelling
or
-
the temperature outside the dwelling is lower than the temperature set at step no. 5 in the
settings menu minus the set temperature on the hysteresis (step no 6), this temperature is
standard set at 22 ° C (24.0 ° C minus 2.0 ° C).
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The Renovent Excellent is also available as Plus version. This
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tional connectors (X14 & X15) with more connection options for
various applications.
The 9-pole connector X15 is accessible at the rear of the Reno-
vent Excellent display cover without having to open the appli-
ance.
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second gland. That makes it possible to feed a 230 volt cable,
which may be connected to connector X14, two outside the
appliance.
See § 11.1 for more information on the connection possibilities
of connectors X14 and X15.
4.1 Description
The appliance comes plug and play and operates fully auto-
matically. The extracted indoor air heats up the fresh, clean
outdoor air. That saves energy and fresh air is sent to the re-
quired rooms.
The control system has four ventilation modes. Dependent on
the connected multiple switch, 3 or 4 ventilation modes can be
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rate of the supply and extract fans is realised independent of
the duct pressure.
X14
X15
Summary of Contents for Renovent Excellent 450
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