Specifications

7
We reserve the right to modify technical specifications without prior notice.
UK830301/170306 © Alpha-InnoTec GmbH
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 tempe-
rature, which varies seasonally. For example, if the ground
stored more heat toward the end of the summer, the coo-
ling 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 oor or wall heating.
the room thermostat for the cooling function
The room thermostat is used to switch the cooling function
on and off:
I Cooling function on
Cooling function off
utilization of the cooling function
The heating and 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” setting must be selected on the
control element under “Operating mode: coo-
ling”.
•
The outdoor temperature release set on the con-
trol element must be exceeded.
Operating manual of the heating and heat pump re-
gulator.
The cooling function can be used in two variants:
Variant 1:
Manual switching from heating to cooling opera-
tion (and vice versa). This variant operates at a
pre-set forward flow temperature.
Operating manual of the heating and heat pump re-
gulator.
Variant 2:
Automatic switching from heating to cooling ope-
ration (and vice versa). This variant can operate
using a cooling curve.
NOTICE.
Variant 2 is possible only if a Comfort board
(available at extra charge) is built into the
heating and heat pump regulator.
Comfort board operating manual.