09
Anchor bolt
Nut
Ferrol
Damping device
Fig. 6-10 Installation of the damper
6.5 Installation of device to prevent snow
build-up and strong breeze
When installing an air-cooled heat pump chiller in a place with heavy
snow, it is necessary to take snow protection measures to ensure
trouble-free operation of the equipment.
Otherwise, accumulated snow will block the air flow and may cause
equipment problems.
(a) Buried in the snow
(b) Snow accumulated
on the top plate
(c) Snow falling on the equipment
(d) Air inlet blocked by snow
(e) Equipment covered with snow
Monsoon
Monsoon
Fig. 6-11 Types of problems caused by snow
6.5.1 Measures used to prevent problems
caused by snow
1) Measures to prevent build-up of snow
The base height should be as least the same as the predicted
snow depth in the local area.
Base height
Outdoor
unit
Fig. 6-12 Snow prevention base height
2) Lightning protection and snow protection measures
Check the installation site thoroughly; do not install the equipment
under awnings or trees or a place where snow is piled up.
6.5.2 Precautions for designing a snow cover
1) To ensure a sufficient air flow required by the air-cooled
heat pump chiller, design a protective cover to make the dust
resistance 1 mm H
2
O or less lower than the allowable external
static pressure of air-cooled heat pump chiller.
2)The protective cover must be strong enough to withstand
the snow weight and the pressure caused by strong wind and
typhoon.
3)The protective cover must not cause short circuit of air
discharge and suction.
Summary of Contents for KEM-30
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