8
the in enclosure in the “On” position. Three
decimal points will appear on the Temperature display.
Electrical Power
Plug the Chiller’s power cord into an appropriate electrical outlet.
Place the Circuit Breaker/Power Switch on the rear of strument
Pre t
1.
ctual
. Ninety (90) seconds after power up, the compressor will begin operating.
3. running, the reservoir’s fluid level will drop as the process and/or process cooling lines
4. il the liquid level as shown on the front panel fluid level gauge
mark.
5. Replace the reservoir cap.
Starting Process Fluid Flow
ss he Power Button on the front panel. The system startup sequence will begin and proceed as follows:
The pump will turn on and fluid will begin circulating through the system. The set point temperature
will appear briefly on the Temperature display; after a few seconds, it will be replaced by the a
fluid temperature
2. Check for leaks.
With the pump
fill with fluid.
Slowly add fluid to the reservoir unt
remains stable at the “Full”
IMPORTANT SPECIAL FEATURE: This Chiller equipped with the WhisperCool™ Environmental Cont
System, which increases/decreases fan speed based on heat load. You will notice that the fan speed
changes du
rol
ring operation. This is particularly beneficial in an environment where low noise level is
desirable.
Normal Operation
Selecting the Temperature Unit (°C or °F)
The LEDs adjacent to the Temperature Display indicate the unit (°C or °F) in which temperature is displayed.
To change from °C to °F or vice versa, proceed as follows:
To change to °F — Place the Circuit Breaker/Power Switch on the rear of the instrument in the “Off”
position. Press and hold the Down arrow button while returning the Circuit Breaker/Power Switch to
the “On” position.
To change to °C — Place the Circuit Breaker/Power Switch on the rear of the instrument in the “Off”
position. Press and hold the Up arrow button while returning the Circuit Breaker/Power Switch to the
o“On” p sition.
e set
point and various alarm settings should be reset to the desired values.
CAUTION: User settings (except local lockout, baud rate, and calibration offset) return to the original
factory defaults when the unit in which temperature is displayed is changed. The Chiller’s temperatur
110-445
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