ClimaCool UCR 30, 50 and 70 tons Manual - Manual (Page 57)

57
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Factory Installed Options
Water Isolation Valves and Flush Ports
Water isolation valves provide isolation to the module for
maintenance and cleaning of evaporator heat exchanger,
without increasing unit or bank dimensions, while adjacent
modules continue normal operation. Optional choice of
integral manual or motorized valves includes 3/4” fi ll and
fl ush valves.
Motorized condenser water valves provide head pressure
regulation for low entering condenser water temperature
applications (less than 60°F).
Hot Gas Bypass
For normal leaving chilled water temperature set point of
44°F, verify that the cut-in pressure is set at 110 PSIG. For
water and glycol systems operating at lower leaving design
temperatures, cut-in pressure must be fi eld adjusted at a
approximately 10 PSIG above the equivalent water/glycol
temperature solution freeze point.Sound Attenuation
Panels
Stainless Steel Strainer Option
Figure 1
Safety Considerations
Prior to installation this manual must be read carefully
and all instruction understood. Personal injury or product
damage can occur if the following safety precautions are
overlooked or ignored. We strongly recommend that you
follow these safety precautions and avoid the potential
hazards listed below when operating and maintaining your
strainer:
1. After unpacking your strainer, carefully inspect your
strainer housing, lid assembly and screen for damaged
or missing parts. Contact ClimaCool’s customer service
department for any replacement parts.
2. The strainer should not be modifi ed or used in a
manner not consistent with the manufacture’s
recommendations. If there are any questions regarding
its application or installations, contact ClimaCool’s
customer service department.
3. Absolutely under no conditions should the strainer lid
or pressure gauges be removed while the strainer is
pressurized.
4. Standard bolted lid models should never exceed 150 PSI;
V-Band clamp models should never exceed 125 PSI.
5. Install back-fl ow prevention devices (or check valves)
both upstream and downstream of the strainer to
prevent back fl ow or vacuum eff ects which can cause
damage to the strainer housing or screen.
6. 6. Install properly sized pressure relief valves both
upstream and downstream of the strainer. This will
help prevent damage to the strainer and screen in the
event that water fl ow is stopped abruptly, or if water
hammering occurs. The pressure relief valves should
be set to relieve pressure at 1.2 times the strainer’s
maximum operating pressure (not to exceed the
maximum rated pressure). Consult your local dealer or
pressure relief valve manufacturer to obtain properly
sized valves for your application.
Note: At No Time Should the Internal Pressure Exceed the
Maximum Rated Pressure of the Strainer.
Strainer Installation Recommendations
We recommend following the guidelines below when
installing your strainer:
1. The CS strainer should be placed on a fi rm, supporting
surface. Failure to do so can cause stress on the weld
joints. The weight of the CS strainer should not be
supported by the main water lines connecting it.
2. The inlet and outlet connections should be securely
fastened. The arrows clearly depict fl ow direction (see
Figure 1).
3. The back-mount pressure gauges should be installed
in the gauge ports located on the front of the strainer
body. These gauges will allow you to monitor the
pressure diff erential across the strainer screen providing
an indication when the strainer element is clogged and
requires cleaning.
4. The CS strainer lid must be securely fastened according
to the following torque specifi cations to ensure product
safety and an adequate seal.