OPERATING AND INSTALLATION MANUAL HEAT PUMP COMBI UNIT PKOM4 PAGE 14
USER
GENERAL
SPECIALIST PERSONNEL
In principle: "As much ventilation
as required"
Adjustment of air volume requires relevant
expertise and is performed by a specialist
during initial start-up.
If ventilation is too low, poor indoor air
quality or mould formation may result in
living areas.
If ventilation is too high, indoor air may
become too dry - particularly in the colder
months.
The active ventilation level is displayed
by various buttons. The selected ventila-
tion level can be changed by pressing the
button.
The following selection options are avail-
able:
Scheduler
The system runs on the ventilation level
that is currently active in the scheduler.
The scheduler can be programmed in the
[menu] under [settings].
A demand-controlled air volume regula-
tion is carried out in the scheduler of the
ventilation level and with activated CO
2
and/
or humidity sensors. Sensors available as
accessories. (For details see section 14.6,
page 37 and section 17, pages 55)
O: The system is in standby mode.
Automatic: In automatic mode an automatic
change-over between summer and winter
mode is eected. This depends on the
outdoor air temperature.
The automatic mode is shown in brackets
below the current operating mode.
Summer: In this operating mode
no heating operation with the
heat pump takes place (exception:
frost protection).
An active cooling operation with the heat
pump can be optionally enabled or inhibit-
ed. The service water (hot water) is heated
via the heat pump.
Frost protection: If the room tem-
perature falls below 10 °C or the
outdoor temperature falls below the frost
protection limit, the heat pump switches on
automatically for the purpose of heating.
Winter: In this operation mode
the heat pump generates heat
if required. Cooling operation is
inhibited. The service water (hot water) is
heated via the heat pump.
Vacation: In this operation mode,
the heat pump generates heat.
Cooling operation is inhibited. Hot
water operation is inhibited. A desired room
temperature specially for the period of
absence can be entered. The time of return
can be also set. On the date of return the
program skips back automatically to the
operating mode before the vacation mode,
which was selected last.
Hot water: In this operation mode
only the service water heating is
active. The ventilation unit and the
heat pump for heating and cooling remain
inactive.
8.1.3 Ventilation level
8.1.2 Operating mode
Operating mode
Automatic
Off
Winter
Summer
Vacation
Operating mode
Hot water
Ventilation
Ventilation
Scheduler
On Off
On
Humidity control
CO
2
-control
Off
Level 1
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