
6.4 Installation of damping devices
6.4.1 Damping devices
By means of t installation holes on the steel frame of the unit
base, the unit can be fastened on the foundation through the
spring damper. See Fig.6-7,6-8,6-9(Schematic diagram of
installation dimension of the unit) for details about center
distance of the installation holes. The damper does not go with
the unit, and the user can select the damper according to the
relevant requirements. When the unit is installed on the high
roof or the area sensitive to vibration, please consult the
relevant persons before selecting the damper.
6.4.2 Installation steps of the damper
Step 1. Make sure that the flatness of the concrete foundation
is within ±3mm, and then place the unit on the cushion block.
Step 2. Raise the unit to the height suitable for installation of
the damping device.
Step 3. Remove the clamp nuts of the damper. Place the unit
on the damper, and align the fixing bolt holes of the damper
with the fixing holes on the unit base.
Step 4. Return the clamp nuts of the damper to the fixing holes
on the unit base, and tighten them into the damper.
Step 5. Adjust the operational height of the damper base, and
screw down the leveling bolts. Tighten the bolts by one circle to
ensure equal height adjustment variance of the damper.
Step 6. The lock bolts can be tightened after the correct
operational height is reached.
Damping device
Anchor bolt
Nut
Ferrol
It is recommended that the damper should be fastened on the
foundation with the provided holes. After the unit is placed on the
foundation, the damper connected with the unit should not be
moved, and the central clamp nut is not allowed to be tightened
before the damper sustains load.
Fig. 6-10 Installation of the damper
NOTE
6.5 Installation of device to prevent snow
build-up and strong breeze
(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
6.5.1 Measures used to prevent problems caused by
snow
a. 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.
b. Lightning protection and snow protection measures
6.5.2 Precautions for designing a snow cover
Monsoon
Outdoor
unit
Base height
Fig. 6-11 Types of problems caused by snow
Fig. 6-12 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.
a. 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 H2O or less lower than the allowable external
static pressure of air-cooled heat pump chiller.
b. The protective cover must be strong enough to withstand the
snow weight and the pressure caused by strong wind and
typhoon.
c. The protective cover must not cause short circuit of air
discharge and suction.
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Installation Manual___________________________________________________________________________________