2-2. Shield For Horizontal Exhaust Discharge - Panasonic U-72MF2U9 Installation Instructions Manual

2-2. Shield for Horizontal Exhaust Discharge

It is necessary to install an air-discharge chamber (field
supply) to direct exhaust from the fan horizontally if it is difficult
to provide a minimum space of 7 ft. (2m) between the air-
discharge outlet and a nearby obstacle.
In regions with heavy snowfall,
the outdoor unit should be
CAUTION
provided with a solid, raised
platform and snow-proof
ducting (field supply).
AVOID
Without snow-
proof ducting
(Without platform)
DO
Fallen snow
With snow-
proof ducting
(High platform)
19
2-3. Installing the Outdoor Unit in Heavy Snow
Areas
In locations where wind-blown snow can be a problem,
snow-proof ducting (field supply) 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, causing 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.
2-4. Precautions When Installing in Heavy Snow
Areas
a) The platform should be higher than the maximum snow
depth.
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.