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Section II General Information
Description
The NESLAB CFT Recirculating Chiller is designed to provide a continuous
supply of cooling fluid at a constant temperature and volume.The unit consists
of an air-cooled refrigeration system, a sealable reservoir, recirculating pump,
and a temperature controller.
Throughout the manual, you will be asked to consult the units serial number
label or the pump identification label for specific information. Both labels are
located on the rear of the unit.
1. 60 Hertz CFT-75s with a "Turbulator" tank have a 2500 watt cooling capacity.
2. Circulating water at 20°C, at 20°C ambient. Cooling capacity will vary depending on fluid
temperature, ambient temperature, and cooling fluid. A PD-1 pump was used in the CFT-25, a
PD-2 in the other units.
3. Modified temperature ranges from -15°C to +85°C are available.
4. CFT-300 stability determined with 86% heat load.
5. 1.25 gallons (4.73 liters) for 50 Hertz CFT-75 units.
1.8
6.8
CFT-25 CFT-33 CFT-75 CFT-150 CFT-300
±1.0°C
1.1
4.2
5.6
21.3
R22R134a
+5°C to +30°C
+5°C to +35°C
±0.5°
Specifications
Cooling Capacity
1,2
Temperature Range
3
Temperature Stability
4
Reservoir Volume
5
Gallons
Liters
Refrigerant
Pollution Degree
12
8
4
5
4
3
2
1
HEAT REMOVAL (KILOWATTS)
0 5 10 15 20 25 30
TEMPERATURE (°C)
C=CFT-150, 60HZ
D=CFT-150, 50HZ
E=CFT-75, 60HZ
F=CFT-75, 50HZ
G=CFT-33, 60HZ
H=CFT-33, 50HZ
I=CFT-25, 60HZ
J=CFT-25, 50HZ
A=CFT-300, 60HZ
B=CFT-300, 50HZ
A
B
C
D
E
F
G
H
I
J
II, IAW IEC 664
0.4
1.4