Sanyo SPW-XR253GH56 Technical Data & Service Manual page 107

1-11 Installation Instructions
Selecting the Installation Site
Air Discharge Chamber for Top Discharge
Be sure to install the air discharge chamber in the filed
when:
it is difficult to keep a space of min. 50 cm between
the air discharge outlet and the obstacle.
the air discharge outlet is facing to the sidewalk and
discharged hot air annoys the passers.
Refer to Fig. 1-6.
Installing the Unit in Heavy Snow Areas
In positions 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 air flow.
1
c) The tubing may freeze and burst.
d) The condenser pressure may drop because of
strong wind, and the indoor unit may freeze.
Precautions for Installation in Heavy Snow
Areas
(1) The platform should be higher than the max.
1 2
snow depth. (Fig. 1-7)
(2) The two fixing feet of the outdoor unit should be
used for the platform, and the platform should be
installed beneath the air intake side of outdoor
unit.
(3) The platform foundation must be firmer and the
3
unit must be secured with anchor bolts.
(4) In case of installation on a roof subject to strong
wind, countermeasures must be taken to prevent
the unit from being blown over.
Dimensions of Snow / Wind-proof Ducting and
4
Refrigerant Tubing Space for Installation
5
Duct
Min. 100 300
Min. 100
300
Duct
Outdoor Unit
Unit: mm
0489_C_I
In regions with snow fall, the outdoor unit should be
provided with a platform and snow-proof duct.
Without snow-
proof ducting
(Low platform)
Fig. 1-7
Outdoor
Unit
Duct
Air
Intake
About 1/2 of the
unit height
I - 102
1. Specifications
Air discharge
0426_C_I
Fig. 1-6
Without snow-
proof ducting
(High platform)
0487_C_I
Fig. 1-8
Duct
Higher than the
maximum
snow depth
Air
Intake
Platform (foundation)
Fig. 1-9
0488_C_I
Example of Installation
0490_C_I
SM830080