Panasonic S-45PU1E5 Technical Data & Service Manual page 311

(3) Obstructions on the front side and above the unit (Left side, right side and rear side are opened).
In case of multiple installations
Provide a solid base (concrete block, 10 × 40 cm beams
or equal), a minimum of 15 cm above ground level to
reduce humidity and protect the unit against possible water
damage and decreased service life.
Use lug bolts or equal to bolt down unit, reducing vibration
and noise.
Air Discharge Chamber for Top Discharge
Be sure to install the air discharge chamber in the field when:
it is difficult to keep a space of min. 50 cm between the air
discharge outlet and an obstacle.
the air discharge outlet is facing a sidewalk and discharged
hot air annoys passers-by.
Installing the Unit in Heavy Snow Areas
In locations with strong wind, snow-proof ducting should
likewise be fitted and direct exposure to the wind should be
avoided as much as possible.
Countermeasures against snow and wind
In regions with snow and strong wind, the following
problems may occur when the outdoor unit is not provided
with a platform and snow-proof ducting:
a) The outdoor fan may not run and damage of the unit may
be caused.
b) There may be no airflow.
c) The tubing may freeze and burst.
d) The condenser pressure may drop because of strong wind,
and the indoor unit may freeze.
B
A B
50 cm 30 cm
or more or more
1-301
Air intake
Air
discharge
Anchor bolts
(4 pieces)
Air discharge
Without snow-
proof ducting
(Low platform)
In regions with significant snowfall, the outdoor unit
should be provided with a platform and snow-proof
duct.
Air intake
Min. 15 cm
With snow-proof
ducting
(High platform)
1