2.5
Cold Climate Installation
In cold climate locations installation should take account of the following considerations:
Never install the unit at a site where the suction side may be exposed directly to wind.
To prevent exposure to wind, install a baffle plate on the air discharge side of the unit.
To prevent exposure to wind, install the unit with its suction side facing the wall.
In areas of heavy snowfall, a canopy should be installed to prevent snow entering the
unit. Additionally, the height of the base structure should be increased so as to raise the
unit further off the ground. Refer to Figure 3-2.4.
2.6
Hot Climate Installation
As the outdoor temperature is measured via the outdoor ambient temperature sensor, make
sure to install the outdoor unit in the shade, or a canopy should be constructed to avoid
direct sunlight. So that it is not influenced by the sun’s heat, otherwise system protection may
occur.
2.7
Base Structure
Outdoor unit base structure design should take account of the following considerations:
A solid base prevents excess vibration and noise. Outdoor unit bases should be constructed on solid ground or on
structures of sufficient strength to support the unit’s weight.
Bases should be at least 100mm high to provide sufficient drainage and to prevent water ingress into the base of the
unit.
Either steel or concrete bases may be suitable.
Outdoor units should not be installed on supporting structures that could be damaged by water build-in in the event
of a blocked drain.
Fix the unit securely to foundation by means of the Φ10 expansion bolt. It is best to screw in the foundation bolts
until their length is 20 mm from the foundation surface.
Figure 3-2.5: Outdoor unit typical concrete base structure design (unit: mm)
5/7kW
12/16kW
(unit: mm)
Concrete
basement
h≥100mm
Rubber
shocking
proof mat
≥100
≥80
Φ
10 Expansion
bolt
Solid
ground
or roofing
(unit: mm)
Concrete
basement
h≥100mm
Rubber
shocking
proof mat
≥100
≥80
Φ
10 Expansion
bolt
Solid
ground
or roofing
Figure 3-2.4: Snow shielding
52
