General
ACS 45 is an accessory that includes a freestanding
electric control module, which makes it possible for your
heat pump to control the production of heating and
cooling independently of each other.
In addition to this accessory (depending on system
solution) a reversing valve for cooling, circulation pump,
mixing valve and distribution system for cooling may be
necessary.
The cooling system supplies cooling from the collector
circuit using a circulation pump via a mixing valve.
Passive cooling occurs without the compressor running,
while active cooling occurs when the compressor is
running.
For the installation to work, the heating medium must
flow freely, for example using a volume vessel for
cooling.
Operating mode cooling is activated by the temperature
on the outdoor temperature sensor and any room
sensor, room unit or separate room sensor for cooling
(if two different rooms are to be heated or cooled at the
same time, for example).
When cooling is required the cooling reversing valve
and the brine circulation pump are activated. The mixing
valve regulates according to the cooling sensor and a
cooling set point value that is determined by the selec-
ted cooling curve. Degree minutes are calculated in re-
sponse to the value on the brine out external temperat-
ure sensor and the cooling set point value. The degree
minute value determines in which cooling mode the in-
stallation is according to the menu settings.
COMPATIBLE PRODUCTS
• S1155
• S1255
CONTENTS
Cable ties4 x
Heating pipe paste3 x
Insulation tape1 x
AXC module1 x
Aluminium tape3 x
Temperature sensor3 x
MOUNTING
Caution
The screw type must be adapted to the surface
on which installation is taking place.
Use all mounting points and install the module upright,
flat against the wall, with no part of the module protrud-
ing beyond the wall.
Leave at least 100 mm of free space around the module
to allow access and make cable routing easier during
installation and servicing.
NOTE
The installation must be carried out in such a
way that IP21 is satisfied.
COMPONENT LOCATION UNIT BOX (AA25)
AA5-X4
AA5-S2
AA5-X2 AA5-X9 X1
FC1
AA5-F1AA5
AA7
AA7-X2
ELECTRICAL COMPONENTS
Accessory cardAA5
Miniature circuit-breakerAA25-FC1
Terminal block, power supplyAA25-X1
Designations according to standard EN 81346-2.
ACS 45 | GB18
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