Control
7
For the System manager
The heat transfer pump is in operation when one of
the compressors is in operation.
When fitted with the Hot water control accessory and,
for instance, our hot water accumulator VPA, the
FIGHTER 1310 HPAC can be used for hot water pro-
duction.
The supply of heat to the building is controlled by the
control computer settings (curve slope and offset).
After adjustment the correct amount of heat for the
current outdoor temperature is supplied. The flow tem-
perature (WW out) from HPAC will vary around the
theoretical required value (value in brackets on the
control computer display). For subnormal tempera-
tures the computer calculates a deficit in the form of
degree minutes, which results in the acceleration of
heat production. The larger the subnormal tempera-
ture, the greater the heat production.
Heat production
Hot water production
Heat transfer fluid pump
With active cooling the compressor starts and the pro-
duced cooling circulates to the building’s distribution
system and the heat circulates out to the ground/rock
collector.
Active cooling.
Using the circulation pumps in FIGHTER 1310 fluid
from the ground/rock collector circulates through the
building’s distribution system and cools the building.
Cooling comes from the ground/rock collector.
Passive cooling
The cooling supply to the building is controlled by the
computer settings (curve gradient and offset). After
adjustment the correct amount of cooling for the cur-
rent outdoor temperature is supplied. The flow tem-
perature (WW out) from HPAC will vary around the
theoretical required value (value in brackets on the
control computer display). In the event of excess tem-
perature the control computer calculates a surplus in
the form of degrees-minutes, which means that the
greater the excess temperature that temporarily pre-
vails the more the connection of cooling production is
accelerated.
FIGHTER 1310 HPAC automatically switches to cool-
ing mode when the outdoor temperature exceeds the
set value in menu 3.
When the cooling requirement is large and passive
cooling is not sufficient active cooling is engaged at
the set limit value.
Cooling
FIGHTER 1310 HPAC
PLEASE NOTE!
This system solution means that the
heat transfer fluid will also circulate
through the heating system. Check
that all component parts are designed
for the heat transfer fluid in question.