Sanyo CHDZ09053 - Manual (Page 43)

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Design of W-3WAY ECO-i SYSTEM Unit Specifi cations
1
2
3
4
5
6
7
8
4. Installation Instructions
4-3. Shield for Horizontal Exhaust Discharge
It is necessary to install an air-discharge chamber (fi eld sup-
ply) to direct exhaust from the fan horizontally if it is diffi cult
to provide a minimum space of 7 ft between the air-discharge
outlet and a nearby obstacle. (Fig. 4-8)
In regions with heavy snowfall,
the outdoor unit should be
provided with a solid, raised
platform and snow-proof duct-
ing (fi eld supply).(Fig. 4-9)
4-4. Installing the Outdoor Unit in Heavy Snow Ar-
eas
In locations where wind-blown snow can be a problem, snow-
proof ducting (fi eld supply) should be fi tted to the unit and
direct exposure to the wind should be avoided as much as
possible. (Fig. 4-10) The following problems may occur if
proper countermeasures are not taken:
The fan in the outdoor unit may stop running, causing the
unit to be damaged.
There may be no air fl ow.
The tubing may freeze and burst.
The condenser pressure may drop because of strong
wind, and the indoor unit may freeze.
4-5. Precautions When Installing in Heavy Snow
Areas
a) The platform should be higher than the maximum snow
depth. (Fig. 4-9)
b) The 2 anchoring feet of the outdoor unit should be used
for the platform, and the platform should be installed be-
neath the air-intake side of the outdoor unit.
c) The platform foundation must be solid and the unit must
be secured with anchor bolts.
d) When installing on a roof subject to strong wind, counter-
measures must be taken to prevent the unit from being
overturned.
CAUTION
With snow-
(High platform)
Without snow-
proof ducting
proof ducting
(Without platform)
AVOID
Fallen snow
DO
Fig. 4-8
Fig. 4-9
Fig. 4-10