8
Subject to change without notice | 83056800fUK – Translation of the original operating manual | ait-deutschland GmbH
●
Dew point monitor for protecting a system with
cooling function at low flow temperatures (if
available)
●
Expansion board
● “Cooling package” for use of the cooling function
●
for units without cooling: Pump assemblies for
separate storage tank and in-line tank integration
(heating circuit)
● Heating circuit safety package
● Heat source circuit safety package
3.3 Function
Liquid refrigerant is evaporated (evaporator), the
energy for this process is environmental heat and
comes from the “ground” heat source (collector,
borehole heat exchanger or groundwater via
intermediate exchanger). The gaseous refrigerant is
compressed (compressor), this causes the pressure
to rise and therefore the temperature too. The
gaseous refrigerant 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.
The heated heating water can be used for the domestic
hot water charging or for the building heating. The
temperatures required and use are controlled by the
heat pump controller.
The integrated vibration isolators for the heating circuit
and heat source prevent structure-borne sound and
vibrations from being transferred onto the fixed pipes
and therefore into the building.
Cooling
Cooling is integrated in type K units. Type H units can
be retrofitted with the “Cooling package” accessories.
The following options are possible for units with
cooling function (
operating manual of the heating
and heat pump controller):
●
Passive cooling (without compressor)
●
Control of the cooling function via the heating and
heat pump controller
●
Automatic switching between heating and cooling
mode
Network connection on the control
The control 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.
4 Operation and care
NOTE
The unit is operated via the control of
the heating and heat pump controller
(
operating manual of the heating and heat
pump controller).
4.1 Energy and environmentally
aware operation
The generally accepted requirements for energy-
aware and environmentally-aware operation of a
heating system also apply to use of a brine/water heat
pump. The most important measures include:
● No unnecessarily high flow temperature
●
No unnecessarily high domestic hot water
temperature (note and follow local regulations)
●
Do not open windows with gap /tilt open
(continuous ventilation), but instead open wide for
a short time (purge ventilation)
4.2 Maintenance
Wipe down the outside of the unit only using a damp
cloth or cloth with mild cleaning product (washing-up
liquid, neutral cleaning product). Do not use any harsh,
abrasive, acid or chlorine-based cleaning products.
