ENGLISH-88
Water pipe installation
Outdoor unit
Ball valve
(used as cleaning hole)
Cleaning device
Auto air discharge valve
Strainer for
pump
Strainer for
outdoor unit
Water inlet pipe
Water outlet pipe
Plate
type heat
exchanger
Flushing pipe
(Install it when cleaning)
Ball valve
(used as cleaning hole)
Ground heat or
closed circuit
cooling tower
1. Before trial operation, connect the cleaning pipes installed on inlet and outlet as shown in above illustration. Then, take
appropriate measures (such as blind ange etc) to stop the circulation water from entering the outdoor unit plate type
heat exchanger, and use circulating pump to remove foreign substance within the water pipes and clean the strainer.
When foreign substances accumulates on outdoor unit plate type heat exchanger, it may break the heat exchanger or
cause problem to it.
2. For legal facilities, install digital sensor and ow meter on the water pipe for monitoring.
• Open the valve of the water pipe connected to the outdoor unit after ushing (cleaning foreign substances in
water pipe) is completed.
• Check that air is vented from the water pipe and circulation amount is secured before opening the service valve
on the refrigerant side of the outdoor unit.
• When circulating water stops during outdoor nit operation, it may cause breakage on plate type heat exchanger.
Check the ow of circulation with ow switch or other devices.
CAUTION
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