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Installation
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Carefully check the unit for damage before installing it, and please contact the retailer
for repair and replacement under any of the following conditions: impact or serious
deformation of the unit, obvious scratch that affects the appearance of the unit panel
or housing, and looseness or breakaway of the fan or motor.
•
For the purpose of safety, hoist the ceiling-mounted unit firmly in the way as shown in
the figure on the right, or load/unload and move it with a forklift, ensure the hoisting
point is firm with sufficient strength to bear the unit weight and make sure the unit is
level.
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Before wiring, check whether the power supply voltage, frequency and phase are
consistent with the unit and ensure the power supply voltage deviation doesn't
exceed ±10% of the rated voltage. Before starting the fan, get into the fan case and
rotate the fan impeller by hand, carefully check whether there is any metal scraping
sound and eliminate the abnormality if any. After switching on the power supply, start
the fan, check whether the impeller rotates in the correct direction. In case of incorrect
rotation direction, just change the phase sequence of the power supply incoming line.
•
It is recommended that a plenum chamber be set at the unit air inlet/outlet, an air
volume control valve on the air duct and a fire damper in accordance with fire control
requirements. If an electric air volume control valve is installed, start the air valve
actuator and then the fan, while close the fan and then the air valve actuator.
U Type Water Seal Installation
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Wash the water pipes before connecting them. Pay attention to the cold (hot) water inflow and outflow directions, connect the
pipes as per the marks on the unit, and equip the unit water inlet pipe with a valve and a filter to adjust the flow. In case of
overhauling, cut off the cold (hot) water source, prevent impurities from entering the heat exchanger so as not to block it, and
use insulated water inlet and outlet pipes for thermal insulation.
•
When connecting the water inlet and outlet pipes, fix them with a pipe tong and prevent them from being subject to a torsional
force during operation. It is recommended that Teflon tape be used for sealing to avoid water leakage. Condensate water from
the unit must be connected at a certain water seal height and drained into the sewer through a drain pipe as shown in the
figure above.
•
Never make the unit bear the weights of air duct, water pipes, etc. connected with it.
•
Earth the unit reliably, and check whether the electric circuits are in good conditions and comply with the electric safety
requirements.
•
Make sure the unit is installed by professionals who are familiar with the product and relevant local rules and avoid impact,
pressing and scratch during installation.
18
CARRIER
Ball Type Water Seal Installation
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