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Both chilled water inlet and outlet port are external taper thread connections.
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 fault, 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.
Caution:
The accessory strainer shipped with unit must be installed on water in pipe, otherwise failure of the unit may
be caused.
Never put the chiller into the condition of being operated with very oily, salty or acidic water, because these
substances may lead to capacity drop and unit damage. Be sure to use clean water when filling in the water
circuit to avoid heavy corrosion and choking of the system.
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.
Notes:
The design, construction and acceptance check of the hydraulic system should respectively refer to and
comply with the corresponding manual, code and standard.
Power Connection
Laws and regulations concerning electrical wiring work vary by country. Therefore, work should basically be
performed according to the regulations of each country.
Before power connection, make sure that your local power supply type accords with the unit nameplate.
Please use suitable size dedicated wire to power this unit. The connections must be made secured without
tension the terminals.
All electric work must be performed by licensed technician according to local regulations and the instructions
given in this catalogue.
The unit must be properly earth connected. Do not connect the earth wire to gas pipe, city water pipe or
telephone wire, improper earth connection may cause electrical shock.
Please mount electric leak protection breaker to avoid electric shock.
For three phase unit, please ensure correct phase sequence, make L1, L2, L3 correspond with R, S, T on
terminal block respectively, otherwise the system cannot be started and the controller has no display.
Every wire should be firmly connected without tension to the cables and terminals.
Si de Panel
Chi l l ed Wat er I n or Out Pi pe
Slide panel
Chilled water in out pipe