ClimaCool UCR 30, 50 and 70 tons Manual - Manual (Page 14)

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14
Water Piping
As with any water system, it is important that the system
be clean. If care is taken during installation, the possibility
of dirt related problems are avoided in future operation
of the chiller. The pipe work installer must remove weld
scale, rust and contamination during pipe work fabrication.
The system water piping must be fl ushed thoroughly
with recommended alkaline fl ush or other chemicals that
are compatible with 316 stainless steel, prior to making
connections to the ClimaCool chiller. There are certain
necessary components that should always be installed
in the chilled water system. (See Figures 1 and 2 on page
15 - Water Piping Confi gurations). Piping confi gurations on
multiple modules may also be found on page 15 - Water
Piping Confi gurations. All water piping must be installed in
accordance with applicable codes and standards.
Temperature Sensor and Wells
ClimaCool provides (2) temperature sensors and wells with
each chiller system programmed by the Master Control
Panel. They must be fi eld installed, 60 inches away from the
bank, on the chilled water inlet and chilled water outlet (See
Water Piping Confi gurations – page 15).
Pressure Diff erential Flow Switch
It is imperative that minimum and maximum water fl ow
rates, as defi ned in the Physical Data tables on page 8,
are not exceeded. To prevent the operation of the chiller
without suffi
cient water fl ow to the evaporator it is a
required safety device to install a pressure diff erential
fl ow switch in the chilled water circuit, downstream of the
strainer (See Water Piping Confi gurations – page 15).
Pressure Taps
The installing contractor must provide access ports for
connecting the pressure diff erential fl ow switch and
pressure gauges for the chilled water system. A 1/4”
pressure tap is required on the inlet and the outlet of the
chilled water system for a total of four taps. If a port is
shared by the pressure diff erential fl ow switch and the
pressure gauge it will require two 1/2” taps. (See Water
Piping Confi gurations – page 15).
Water Isolation Valves
It is recommended to provide bank water isolation valves for
proper isolation and maintenance of the chiller, pump and
strainer (See Water Piping Confi gurations – page 15).
Strainers – Minimum 60 Mesh Screen Required
ClimaCool chillers employ brazed plate heat exchangers
which are extremely sensitive to debris. Therefore, it is
mandatory that all chilled water systems include a strainer
with a minimum of 60 mesh screen for proper fi ltration. The
strainers must be installed as shown in the Water Piping
Confi gurations on page 15.
ClimaCool’s warranty does not cover and does not apply to
products which have defects or damages due to freezing
of the water supply, an inadequate or interrupted water
supply, corrosives or abrasives in the water supply, or
improper or inadequate fi ltration or treatment of the
water supply.