ClimaCool UCH 30, Installation, Operation & Maintenance Manual

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As with any water system, it is important that the system
be clean . The pipe work installer must remove weld scale,
rust and contamination during pipe work fabrication .
The system water piping must be flushed thoroughly
with recommended alkaline flush 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
both the chilled water and condenser water systems. (See
Water Piping Configuration Figures 19 and 20 on page 16).
Piping configurations on multiple modules may also be
found on pages 15 . All water piping must be installed in
accordance with applicable codes and standards .
Temperature Sensor and Wells
ClimaCool provides four (4) temperature sensors and wells
with each chiller system programmed by the CoolLogic
Control System. They must be field installed a minimum of
36” but no more than 60” away from the bank and before
the strainer, on the chilled water inlet, chilled water outlet,
condenser water inlet and condeser water outlet. (See
Water Piping Configuration on page 16). Note: Sensors must
be fully inserted into the well to obtain proper readings
and must be 2 ½ pipe diameter minimum before or after
an elbow. See Figures 14 and 15.
Chiller/Heater System Water Header Bypass
A bypass is required for any chilled water/evaporator, hot
water/condenser (heating load) and source water side
(geothermal, cooling tower or closed circuit cooler) with
variable pumping . The bypass must be piped in such a way
that the temperature and differential pressure sensors are
still sensing active flow (See Water Piping Configuration
Water Piping
Pressure Differential Flow Sensor
It is imperative that minimum and maximum water flow
rates, as defined in the Operational Limitations tables on
page 31, are not exceeded . To prevent operation of the
chiller without sufficient water flow to the evaporator and
condenser, it is required to install pressure differential flow
sensors in both the chilled and condenser water circuits .
Place one (1) on each side, downstream of the strainers on
the inlet and outlet of a straight pipe, as close to the module
as possible . Do not put in an elbow on the outlet. (See
Water Piping Configurations on page 16). Note: Evaporator
and condenser sides both require sensors of equal
pressure ranges.
Pressure Taps
The installing contractor must provide access ports for
connecting both the pressure differential flow sensors and
pressure gauges for both the condenser and chilled water
systems . A ¼” pressure tap is required on the inlet and the
outlet of both water systems for a total of eight (8) taps. If a
port is shared by the pressure differential flow sensor and the
pressure gauge, it will require four (4) ½” taps. (See Water
Piping Configurations on page 16).
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 Configurations on page 16).
Strainers – Minimum 60 Mesh Screen Required
ClimaCool chillers utilize brazed plate heat exchangers
which are extremely sensitive to debris . Therefore, it is
mandatory that all condenser and chilled water systems
include a strainer with a minimum of 60 mesh screen for
proper filtration. The strainers must be installed as shown in
the Water Piping Configurations on page 16 and be in place
at all times when the chiller(s) is/are in operation.
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 filtration or treatment of the
water supply.
Figure 14 - Temperature Sensors
Figure 15 - Flow Sensors (DPT)