Nibe F1155 Installer Manual page 19

Free cooling
The installation can be supplemented with fan con-
vectors, for example, in order to allow connections for
free cooling (PCS 44).
Pipes and other cold surfaces must be insulated with
■
diffusion-proof material to prevent condensation.
Where the cooling demand is high, fan convectors
■
with drip trays and drain connection are needed.
The brine system must be supplied with a pressure
■
expansion vessel (CM3). If there is a level vessel (CM2)
this should be replaced.
Fan convectors
Fläktkonvektor
P
Under floor heating systems
The external circulation pump is dimensioned for the
under floor heating system's demand.
To ensure a heating supply during hot water produc-
tion, the heating system can be supplemented with a
NIBE UKV vessel, e.g. when there is a water coil in the
FTX ventilation.
UKV
NIBE™ F1155
2
1
3
T
Two or more climate systems
When more than one climate system, with a lower
temperature, is to be heated up, the following connec-
tion can be used. The shunt valve lowers the temperat-
ure to, for example, the under floor heating system.
The ECS 40/ECS 41 accessory is required for this con-
nection.
Pool
Charging of the pool is controlled by the pool sensor.
In the case of low pool temperatures, the shuttle valve
reverses direction and opens towards the pool ex-
changer. The POOL 40 accessory is required for this
connection.
T
Pool
T
Chapter 4 | Pipe connections 19