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Subject to change without notice | 83059000gUK – Translation of the original operating manual | ait-deutschland GmbH
3.4 Function
Liquid refrigerant is evaporated (evaporator), the ener-
gy for this process is environmental heat and comes
from the outside air. The gaseous refrigerant is com-
pressed (compressor), this causes the pressure to rise
and therefore the temperature too. The gaseous refrig-
erant with high temperature is liquefied (condenser).
Here the high temperature is discharged to the heating
water and is used in the heating circuit. The liquid
refrigerant with high pressure and high temperature
is expanded (expansion valve). The pressure and
temperature drop and the process begins again.
Due to the integrated switching valve and the integrated
energy efficiency circulation pump the heated heating
water can be used for charging the domestic hot
water or for heating the building. The temperatures
required and use are controlled by the heat pump
controller. Reheating, drying out screed or increasing
the domestic hot water temperature can be carried out
using the integrated electric heating element, which
is activated by the heat pump controller as and when
necessary.
An integrated overflow valve ensures that the heat
pump does not switch to high-pressure fault if all
heating circuits are closed. The integrated vibration
decouplers for the hydraulics prevent structure-borne
sound and vibrations from being transferred into the
fixed pipes and therefore into the building.
Cooling
Cooling is integrated in the units. The following options
are possible for the cooling function (
operating
manual of the heating and heat pump controller):
●
Active cooling
●
Control of the cooling function via the heating and
heat pump controller
●
Changeover between heating and cooling
operation
Network connection on the control panel
The control panel can be connected to a computer
or network via a network cable. The heating and
heat pump controller can then be controlled from
the computer or from the network. Furthermore, the
manufacturer's internet-based service can also be
used.
Control panel
1 Control panel
2 Push up flap in front of USB connection (for
qualified personnel, for software updates and
for data logging)
3 Wall-mount (will only be detached if the con-
trol panel is not being attached to the device
but is being mounted on the wall instead)
3.3 Accessories
The following accessories are available for the unit
through the manufacturer's local partner:
●
Additional masking plate for the front cover panel,
if the control panel is mounted on the wall
●
Domestic hot water tank
●
Room thermostat for switching the cooling
function
●
Dew point monitor for protecting a system with
cooling function at low flow temperatures
●
Expansion board with various additional functions
●
Room control panel for controlling the main
functions from the living room
