Cooling Function - Alpha-InnoTec SWC 140H Operating Manual

Cooling function

The cooling function is available only for heat pumps with
the model designator K.
It is not possible to retrofit heat pumps for cooling without
this designator. for the model designator, please refer to the
purchase documents. It is also on the rating plate attached
to the outside of the unit.
The cooling function is based on the principle of passive
cooling. An existing low temperature level is mixed to a tem-
perature above the dew point and transferred to the heating
medium by means of a heat exchanger. The heat pump re-
mains switched off during cooling; only the circulating pumps
for the heating circuit and the heat source are in operation.
The cooling power depends on the heat source temper-
ature, which varies seasonally. for example, if the ground
stored more heat toward the end of the summer, the cool-
ing power of a brine/water pump is reduced.
The effectiveness of passive cooling is generally not compa-
rable to that of an air conditioning system.
notiCe:
the use of the passive cooling function re-
quires floor or wall heating.
We reserve the right to modify technical specifications without prior notice.
UK830300/170717 © Alpha-InnoTec GmbH
THE ROOM THERMOSTAT FOR THE COOLING FUNCTION
The room thermostat is used to switch the cooling func-
tion on and off:
I cooling function on
cooling function off
The heat pump regulation program activates the cooling
function only if the following conditions are fulfilled:
•
Heat pump model must have integrated cooling
function.
•
Room thermostat for the cooling function must
be switched on.
•
Temperature of the heat source must be ≥ +5 °c.
•
Heat pump must not currently be occupied with
"heating" or "water heating".
If the heat pump regulation program sends the
command "water heating" to the heat pump, the
cooling function of the heat pump automatically
stops as long as the water is heating.
•
The "Automatic" settings must be selected on
the heat pump and heating regulator under "op-
erating mode: cooling".
•
The outdoor temperature release set at the heat
pump and heating regulator must be exceeded.
operating manual of the heat pump and heating
regulator.