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MODEL 7530 AIR COOLED WATER CHILLER
TAFA Incorporated's 7529 Air Cooled Water
Chiller is a recommended auxiliary for closedloop
cooling of thermal spray equipment in high
ambient air temperature regions. TAFA's JP-5000
and JP-8000 are examples of the TAFA
equipment it can be used with.
The Model 7529 is a complete comprehensive
package that is easy to install. Simply connect the
two water lines and electrical power and fill the
tank.
HIGH RELIABILITY
Superior quality refrigeration and electrical
components
Large reservoir for reduced compressor
cycling, better temperature control and energy
savings
Plate heat exchanger external to the water
reservoir
Two energy-efficient scroll compressors
Stainless steel tank and non ferrous water
circuit. Pressure relief Valve. Stainless
impellers in pump.
Capable of handling return water pressure up to
45 psig (3.1 bar)
Standard weatherproof enclosure for covered
external use with optional low ambient controls
HIGH VERSATILITY
Simple, powerful microprocessor controls
with four push-button switches, 3 digit
LEDs, F or C selection and compressor 1 and
2 running LED display
Quick access panels for easy maintenance
Large reservoir for reduced compressor
cycling, better temperature control and energy
savings
Model 7530 Air Cooled Water Chiller
Operation
Designed for either closed or open loop water
systems, this high efficiency air-cooled
refrigeration system is simple to maintain. The
unit continuously monitors functions and activates
an alarm whenever operating conditions deviate
beyond acceptable limits. Warm air is vented
through the top of the unit by two 2 HP axial fans.
There are optional centrifugal fans for ducted
condenser air or for heat recovery applications.
Total CFM from the fans is 15,000.
Energy Efficient
The chiller incorporates a copper-brazed stainless
steel evaporator outside of the insulated thermal
storage tank with true counter-flow of water and
refrigerant that maximizes cooling performance.
The Model 7529 uses 2 high-efficiency Scroll,
R407C refrigerant compressors. The compressors
are controlled by a thermostat and are designed to
cycle off and on within a preset temperature
differential. An oversized reservoir allows the
compressors to cycle off and on a maximum of 8
starts per hour assuring extended compressor life.
And with the pump running continuously, a
standard temperature differential of ± 3° F (±1.7°
C) promises constant, chilled water. The design
ensures that the refrigeration power is directly
proportional to the cooling load.
Includes:
Double electrical panel doors with Plexiglass
window for improved weatherproofing and safety.
Galvanized steel enclosure etched and finished
with an epoxy coating. Crankcase heater installed
for low ambient temperatures, built-in insulated
energy storage tank, a plate heat exchanger
external to the water reservoir, refrigerant HP and
LP gauges, pump pressure gauge, adjustable LP
and fan pressure switches, and a fail-safe flow
switch. Consult TAFA for further details.
Options:
Centrifugal fans for ducted condenser air or
heat recovery applications
Software and RS232 interface for modular
connections
Tank pressure gauge
Sound attenuation package
Automatic drain valve
Outside (low ambient) package
Automatic water make-up kits for closed-loop
systems
Easy-fill port with shut-off valve
Sight glass for fill verification
Alternate refrigerants
Refrigeration Capacity: 350,000 BTU/hr (102.4 kW) (29 tons)
@ 60 Hz. @ 95° F (35° C) Ambient
Rated Ambient Temp: 45 95° F (7.2 - 35° C)
Refrigerant: R-407C
Tank size: 105 gal (397 liter)
Standard Pump: 5 HP Nominal flow up to 46 gpm (174
l/min) @ 72 PSI (5 bar)
Process Connections: 2 (5.1 mm) NPT
Dimensions 80.6" (l) x 41.7" (w) x 78.4" (h) (205 x 106
x 199 cm)
Shipping Weight 2880 lbs (1306.4 kg) (with Wood Crate)
Utility Requirements Electrical 460 volts, 3 phase, 60
Hz, Custom configurations are available.
FLA: 59
Breaker: 100 A Controls 24 V
Compressor heat output: 497,224 BTU/hr (145.5 kW) (41.4
tons)
* 100% cooling capacity up to 95°F (35°C) ambient
temperature.
** Refrigerant R-407C is now the worldwide accepted
refrigerant. The information contained herein is offered
for use by technically qualified personnel at their
discretion and risk without warranty of any kind.
Praxair Surface Technologies is constantly improving its
products, and specifications are subject to change
without notice.
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