Fig. 6-8 Installation of the damper
Anchor bolt
Nut
Ferrol
Damping device
6.5 Installation of device to prevent snow
build-up and strong breeze
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.
2) Lightning protection and snow protection measures
6.5.2 Precautions for designing a snow cover
Outdoor
unit
Base height
Fig. 6-9 Types of problems caused by snow
Fig. 6-10 Snow prevention base height
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.
Check the installation site thoroughly; do not install the equipment
under awnings or trees or a place where snow is piled up.
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.
(e) Equipment covered with snow
(d) Air inlet blocked by snow
(b) Snow accumulated
on the top plate
(c) Snow falling on the equipment
(a) Buried in the snow
Monsoon
68
Содержание MUENR-30-H9T
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