Specifications

28
Fig. 2-9
Fig. 2-10
Fig. 2-11
2-3. 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. (Fig. 2-9)
CAUTION
In regions with heavy snow-
fall, the outdoor unit should
be provided with a solid,
raised platform and snow-
proof vents. (Fig. 2-10)
2-4. 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. (Fig. 2-11) 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 air flow.
● The tubing may freeze and burst.
● The condenser pressure may drop because of
strong wind, and the indoor unit may freeze.
2-5. Precautions When Installing in Heavy Snow
Areas
a) The platform should be higher than the maximum
snow depth. (Fig. 2-10)
b) 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.
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,
countermeasures must be taken to prevent the
unit from being overturned.
With snow-
proof vents
(Hi
g
h platform)
Without snow-
proof vents
(Low platform)
AVOID
F
a
ll
e
n
s
n
ow
DO
DO
04-396 Inverter-W_a-p50 ARGO 12/21/04 9:38 AM Page 28