Ventilation connection
FIGHTER 310P
For the Installer
14
FIGHTER 310P is connected so that all ventilation air
except the kitchen fan passes the evaporator (62) in
the heat pump. The lowest ventilation flow according
to current standards is 0.35 l/s per m
2
floor area. For
optimum heat pump performance the ventilation flow
should not be less than 100 m
3
/h. (28 l/s).
The heat pump's installation area should be ventilated
by at least 36 m
3
/h (10 l/s).
FIGHTER 310P is equipped with a ventilation opening
in the base. As a result, an air flow of about 5 m
3
/h
(1,4 l/s) is taken directly from the room where the heat
pump is installed.
Changing the ventilation capacity is described under
“Electrical connection” “Setting the fan capacity”. See
also "Circuit diagram". The numbering of the curves
refers to the outlets on terminal block (22).
To obtain the necessary air exchange in every room of
the house, the exhaust air devices must be correctly
positioned and adjusted. A defective ventilation instal-
lation may lead to reduced heat pump efficiency and
thus poorer operating economy, and may result in
damage to the house.
NOTE!
A duct in a masonry chimney stack
must not be used for extract air.
To prevent fan noise being transferred to the exhaust
air devices, it may be a good idea to install a silencer
in the duct. This is especially important if there are
exhaust air devices in bedrooms.
Because the heat pump contains a flammable refriger-
ant in the form of propane (R290), the air ducting sys-
tem must be earthed. This is done by making a sound
electrical connection to the exhaust air and vented air
ducts with the two earthing cables supplied. The cables
must then be connected to the earthing studs on top
of the top cover.
Connections should be made via flexible hoses, which
must be installed so that they are easy to replace. The
extract air duct must be provided with diffusion-tight
insulation over its entire length. Provision must be
made for inspection of the duct. Make sure that there
are no reductions of cross-sectional area in the form
of creases, tight bends etc, since this will reduce the
ventilation capacity. All joins in the ducting must be
sealed and pop-riveted to prevent leakage.
The air duct system should, at a minimum, be of air
tightness class B.
The diagram below show the available ventilation
capacity.
Fan diagram
Ventilation flow Duct installation
Adjustment
The kitchen duct must not be connected to FIGHT-
ER 310P.
Kitchen duct
400
350
300
250
200
150
100
50
0
0
100
200
300 400
Luftflöde
Tillgängligt statiskt tryck
1
2
3
4
5
6
7
8
9
10
Fläktdiagram F360P
m
3
/h
0
25
50
75
100
l/s
Pa
mmvp
40
30
10
20
Air flow
Available static pressure
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