With snow-
proof vents
Fallen snow
DO
Without snow-
proof vents
(Low platform)
AVOID
(High platform)
CAUTION
a)
b)
c)
d)
4-3. Shield for Horizontal Exhaust Discharge
It is necessary to install an air-discharge chamber
(field supply) to direct exhaust from the fan horizontal-
ly if it is difficult to provide a minimum space of 2 m
between the air-discharge outlet and a nearby obsta-
cle.
In regions with heavy snow-
fall, the outdoor unit should
be provided with a solid,
raised platform and snow-
proof vents.
4-4. Installing the Outdoor Unit in Heavy Snow
Areas
In locations where wind-blown snow can be a prob-
lem, snow-proof vents should be fitted to the unit and
direct exposure to the wind should be avoided as
much as possible. The following problems may occur
if proper countermeasures are not taken:
The fan in the outdoor unit may stop running, caus-
ing the unit to be damaged.
There may be no airflow.
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
The platform should be higher than the maximum
snow depth.
The 2 anchoring feet of the outdoor unit should be
used for the platform, and the platform should be
installed beneath the air intake side of the outdoor
unit.
The platform foundation must be solid and the unit
must be secured with anchor bolts.
When installing on a roof subject to strong wind,
countermeasures must be taken to prevent the
unit from being overturned.
To Next Page
Loading...
