BAKL6C502AA.doc
KONVEKTA AG
Edition: 12.07.2001
Page: 8/13
4. Task and function of air conditioning unit
4.1. Task of the air conditioning unit
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to dehumidify the air
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comfortable room temperature
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to guarantee sufficient fresh air
4.2. Function of the air conditioning unit
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A/C unit only operable with running engine
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A/C unit has to be switched on by air conditioning switch (S362)
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Room temperature is reached automatically in dependence of the outside temperature
−
Defrosting thermostat (on evaporator), low pressure switch (on evaporator) and high pressure
switch (on condenser) do supervise cooling circuit.
−
In case of disturbance compressor is automatically interrupted. Signal light „disturbance air con-
ditioning„ (H218 red) is flashing up. See Chapter 7, (Fault indicators and corrective action).
−
In case of an eventual damage of the a/c unit - operation should immediately be inter-
rupted to avoid consequential damages.
It’s recommended to contact one of
KONVEKTA
’s
Service Stations
1)
and
the unit should first be taken into operation again after it has been
checked through specialists.
4.2.1. Return Air/Mixed Air/Fresh Air Flap
In dependence to the outside temperature, air flap is automatically changing to return-, mixed- or
fresh air.
Outside temperature: - 30°C up to approx. 10°C
Circulated Air
10°C up to approx. 18°C
Mixed Air
18°C up to approx. 23°C
Fresh Air
23°C up to approx. 28°C
Mixed Air
28°C up to approx. 70°C
Circulated Air
4.2.2. Evaporator Blowers
The evaporator blowers are continuously activated through difference of room temperature. Control
response of 40% up to 100% air performance works at approx. 2°C above setpoint temperature.
During heating process, it is permanently air conditioned with 30% air performance.
Blower Reduction Activated Through Tacho-Contact:
Blowers are reduced by tacho-contact (below 5km/h + 24 Volt) at 40% air performance and after
release they are immediately adjusted to run slowly and uniformly, if required also with higher
speed range.
1)
see hand book „
KONVEKTA
Service Stations “
