Climacool engineering guide specifications – ClimaCool FLEX SERIES 30, 50, 65 User Manual
Page 36
ClimaCool Engineering Guide Specifications
34
Modular Chiller "Y" or Basket Strainers
The FLEX module strainers shall be designed for a fl ow of
___GPM, with a design pressure loss during maximum fl ow
of 1.5 PSI. Strainers shall be provided with a minimum 60
mesh / 234 micron screens for system protection. Pressure
construction of the strainer housing, fl anges and nipples shall
all be carbon steel. Strainer housing shall be rated for either
200 PSI or 285 PSI. The strainers shall be installed on the
condenser water and chilled water inlets for each bank of
chillers.
Pressure Differential Alarm Package (CS Series only)
Each Strainer shall be equipped with a Pressure Differen-
tial Alarm (PDA) and Automatic Timer Flush. The PDA is
constructed of a fi berglass NEMA 4X enclosure, consisting
of a pressure differential switch, gauge, fl ashing, and audible
alarm signals. The controller shall be capable of remote
monitoring via two additional auxiliary contacts. Adjustable
differential pressure switch, ranging from 1-15 PSI, factory
set @ 7 PSI.
PDA to provide following functions:
• Continuously monitor the inlet and outlet system
pressure differential. When the fi lter screen becomes
dirty, a gauge-switch will trigger an audible siren and a
visual fl ashing alarm.
• Alarms shall be designed to alert maintenance
personnel that the strainer screen needs to be
removed from the strainer housing for cleaning.
Automatic Flush System Feature (CS Series only)
The automatic fl ush valve shall be constructed with a 1-1/2”
stainless steel motorized ball valve with an open/close indica-
tor. The controller is to be equipped with a programmable
time-based controller along with a manual control switch.
Automatic Flush Strainer & Timer Functions
(CS Series only):
• Design shall insure particulates which fall down to the
debris reservoir are automatically fl ushed.
• Timer control for the valve package is to be housed
inside a watertight control box, attached to the valve.
• Design shall permit end-user to simply dial in the fl ush
frequency and fl ush duration of the valve.
• The valve shall also be equipped with a manual fl ush
control switch that can be used to manually fl ush the
strainer or drain the strainer before removing the screen.
Condenser – Water Cooled
Each module will have a dual circuit brazed plate heat
exchanger. The heat exchanger will be designed and con-
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The condenser shall have two refrigerant circuits, one water-
side circuit and shall incorporate a counter fl ow heat transfer
pattern to increase heat transfer effi ciency. The condenser
will have a refrigerant design side working pressure of 400
PSI and a water side design working pressure of 285 PSI.
In order to ensure proper fl ow protection, a strainer with a
minimum of 60 mesh screen must be installed prior to the
condenser in the fi eld.
Evaporator
Each module’s evaporator will be a dual circuit brazed plate
heat exchanger. The evaporator shall be designed and con-
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The heat exchanger shall have two refrigerant circuits, one
waterside circuit and shall incorporate a counter fl ow heat
transfer pattern to increase heat transfer effi ciency. The
evaporator will have a refrigerant design side working pres-
sure of 400 PSI, a water side design working pressure of 285
PSI and shall be insulated with 3/4” closed cell foam rubber
having a “K” factor of 0.26. In order to ensure proper fl ow
and protection, a minimum of a 60 mesh strainer must be
installed prior to the chiller water evaporator in the fi eld.
Compressors
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Each compressor shall be mounted with rubber isolation,
each shall include compressor overload protection, high
discharge pressure and low suction pressure cutouts.
Refrigerant Circuits - Refrigerant Flexible
The dual refrigerant circuits must be designed to comply with
ASHRAE 90.1 Effi ciency Guidelines. Each circuit operates
using HCFC R-22 as standard, and must be readily convert-
ible to HFC R407C at any point during the lifetime of the
product without any component changes.
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