Climacool design features – ClimaCool FLEX SERIES 30, 50, 65 User Manual
Page 9
7
Evaporator
Each module has a brazed plate heat exchanger (consisting of
two refrigerant circuits with one waterside circuit); con-
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and using a total counter fl ow to increase module effi ciency.
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circuit and is insulated with 3/4” closed cell foam rubber,
having a “K” factor of 0.26 and UL and/or ASME coded for
400 PSI refrigerant working pressure.
Refrigerant Circuit - Refrigerant Flexible
The dual refrigerant circuits are designed to comply with
ASHRAE 90.1 Effi ciency Guidelines. Each circuit operates
using HCFC R-22 as standard, and are readily convertible to
HFC R-407C at any point during the lifetime of the product
without any component changes. This requires no removal of
existing refrigerant oil, only a refrigerant change on site.
Dual refrigerant circuits are pre-charged with R22 as
standard, or with optional R407C, and factory run tested. If
refrigerant R22 is specifi ed, the chiller is designed to accept
R407C at a later date in the fi eld.
Each circuit consists of a factory tested scroll compressor,
with high pressure switch, low pressure switch, pressure
relief valve, discharge, suction, and liquid isolation valves,
a liquid line drier, moisture indicator, externally equalized
thermal valve (suitable for R22 and R407C), plus gauge
port connections.
Compressors - Scroll
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overload protection, high discharge pressure and low suction
pressure cutouts.
Electrical
Each module is manufactured with it’s own individual elec-
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full view on a right-hand hinged, swing out electrical power
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ClimaCool Design Features
panels are equipped with lockable door latch mechanisms. All
modules are UL and CUL listed.
The power distribution system for each module contains:
• Main power distribution terminal
• Compressor motor contractors
• Motor overload protection per compressor
• Individual compressor motor fusing or breakers
Each individual module is equipped with a local manual
“ON” / “OFF” compressor switch to allow service or repair
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entire chiller. The use of individual power supply to each
module allows the unit to produce chilled water while any
one module is shut down.
Controls
Each chiller system can be equipped with a programmable
ClimaCom
™
microprocessor-based controller. The controller
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run time, and staged accordingly based on leaving chilled wa-
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optional programming. The controller is capable of remote
monitoring via an additional modem connection.
Control functions:
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• Compressor sequencing
• Compressor anti-short cycle
• Low temperature freeze protection
• High pressure control switch
• Low pressure control switch
• Alarms for high/low water temperature
NOTE: A lower cost ClimaCool
®
Mini-Com
™
controller
is available for simple setpoint, step-controlled staging of up
to 2 modules without communications or remote features.
Run Tested
Each chiller module is given a complete operating charge of
refrigerant. Modules are documented and run tested under
load conditions.
Flange Blank Off Plates
Blank off plates are provided with nuts, bolts, gaskets and
washers. Four are required per “bank” of modules. These are
fi eld installed on the last module and rated for 285 PSI
operating pressure. Blank off plates are included and shipped
with all modules.
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