7 | Installation
Installer reference guide
38
RZAG71~140N
Sky Air Alpha-series
4P695307-1A – 2024.02
Snow
In regions with snowfall, snow might build up and freeze between the heat
exchanger and the casing of the unit. This might decrease the operating efficiency.
To prevent this:
1 Remove the beam structure (see figure below).
2 Remove the knockout hole (a) by tapping on the attachment points with a flat
head screwdriver and a hammer.
3 Remove the burrs, and paint the edges and areas around the edges using
repair paint to prevent rusting.
NOTICE
Precautions when making knockout holes:
▪ Avoid damaging the casing and underlying piping.
▪ After making the knockout holes, we recommend to remove the burrs and paint
the edges and areas around the edges using repair paint to prevent rusting.
▪ When passing electrical wiring through the knockout holes, wrap the wiring with
protective tape to prevent damage.
INFORMATION
We suggest to install the optional bottom plate heater (EKBPH140N7) when the unit
is installed in cold climates.
7.3.6 To prevent the outdoor unit from falling over
In case the unit is installed in places where strong wind can tilt the unit, take
following measure:
1 Prepare 2 cables as indicated in the following illustration (field supply).
2 Place the 2 cables over the outdoor unit.
3 Insert a rubber sheet between the cables and the outdoor unit to prevent the
cables from scratching the paint (field supply).
4 Attach the ends of the cables.
5 Tighten the cables.
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