©2009McQuay
16
Water System Installation
Chilled water piping must be insulated and waterproof to avoid performance loss and moisture
condensing on it.
To guarantee the chilled water quality, the water strainer shipped with unit must be installed on the
chilled water inlet pipe.
When performing water pipe connection, use gripping pliers to fix the
unit connections to avoid the reserved connections on unit being
directly suffered from revolving torque when fastening.
Air vent valve should be installed at highest points on chilled water piping system, see detailed
information in “chilled water system installation schematic diagram”. After completing chilled water piping,
carry out leak detection and 0.4MPa pressure test to ensure having no mistake, then fully fill water in
system, open air vent valve, purge all the air trapped in the piping system, after that shut off the air vent
valve. Water drainage valve should be installed at lowest points on chilled water piping system.
In order to achieve the unit long-life operation, it is recommended to give first priority to new type plastic
water pipe such as PP-R, PVC, never use galvanized steel pipe when choosing the material of water
pipe.
The accessory strainer shipped with unit must be installed on water in pipe, otherwise failure of the unit
may be caused.
The unit should be connected with the water supply system through the automatic feeder that is the unit
accessory. The pressure of the water supply system must be more than 1.5 bar and less than 6 bar.
Caution
!
If the chiller is operated with very oily, salty or acidic water, these substances may lead to capacity drop.
Be sure to use clean water when filling in the water circuit to avoid heavy corrosion and choking of the
s
stem.
Caution
!
Don’t use the water pump equipped in unit to clean piping. If using the pump to clean is required, you can
fill clean water in system at water in side, meanwhile make the pump running, please conduct 30-minute
pump operation, then clean the strainer.
Caution
!
Side Panel
Inlet/Outlet
To Next Page
Loading...
Need help?
General
