SDHWM.210119
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1. Installation in the duct system
The unit must be installed in the outdoor air duct.
The unit is supported either with the supplied mounting
bracket or another approved manner. Make sure that
the support will withstand the weight of the unit in its
operating condition.
The coarse filter must always be placed in outdoor air
side of the unit.
The unit must be mounted horizontally. There should be
at least 500 mm servicing space at the sides of the unit.
NOTE!
The ducts, after the unit, must be heat- and
condensate-insulated. Insulation must be designed
according to national regulations, with nonflamable
insulation for example mineral wool. Keep in mind that
the ducts’ insulation must run right up to the unit. The
supply air duct after the battery must be insulated in cold
and warm space. The outdoor air duct, the ducts after the
battery as well as the outgoing exhaust air duct must also
be insulated against moisture (for example with a layer of
plastic film above the layer with insulation or cellular-rub-
ber insulation).
Condensate discharge
The discharge hose is connected to the condensate out-
let (G3/8”). The condensate is led off to a floor drain or
the like using a hose with an inner diameter of at least
12 mm. The condensate hose (502130) is available as an
accessory. The hose must not be led off directly to the
drain. There must not be two water traps or a horizontal
section on the condensate hose. The damming height
of the water trap should be at least 100 mm.
Check that the condensate discharge outlet is not
clogged and check its outflow by pouring water on the
bottom of the unit.
A condensate pipe that is installed in a cold space must
always be insulated with at least 50 mm mineral insula-
tion or 30 mm cellular rubber insulation and fitted with
a heating cable.
Pipe connections for the medium
The pipes for the heating/cooling medium is connected
to the unit’s pipe connections (Cu 22 mm). Remember
the need to vent the heating medium pipes in connec-
tion with the pipe installation.
The unit’s connection pipes must not be subjected to
distortion or bending movements when the connections
are made. Ensure that the unit’s expansion forces or the
pipe system’s own weight does not load the connec-
tions on the unit.
The unit and its connections must be checked for leak-
age once the pipe system has been completely filled.
Installation
Summary of Contents for CASA SDHW250F
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