Flooded type water cooled screw chiller (PCB Control)
MCAC-CTSM-2012-11
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5. Installation of Water Pipeline System
Due to the variety of piping practices, it is advisable to follow the recommendations of local
authorities. The installation and insulation of the water pipelines of the air conditioning system shall
be designed and guided by design professionals, and confirm to the corresponding provisions of the
HVAC installation specifications.
Basically, the piping should be designed with a minimum number of bends and changes in elevation
to keep system cost down and performance up.
1) The water inlet pipeline and drain pipeline shall be connected according to the requirements of
markings on the unit. Generally, the refrigerant pipe side of the evaporator is the chilled water
outlet side.
2) The chilled water pipeline system must be provided with the soft connection, thermometer,
pressure gauge, water filter, electronic scale remover, check valve, target flow controller,
discharge valve, drain valve, stop valve, expansion tank, etc.
3) The water system must be fitted with the
water pump
with appropriate displacement and head,
so as to ensure normal water supply to the unit. The soft connection shall be used between the
water pump, unit and water system pipelines, and the bracket shall be provided to avoid stress
on the unit. Welding work for installation shall avoid damage to the unit.
(1) Determination of water pump flow:
Flow (m3/h) = (1.1 ~ 1.2) * Unit Cooling Capacity (kW)/5.8
(2) Determination of water pump head:
Head (m) = (Unit Resistance (see product parameters) + Resistance at Maximum End of
