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Quick Reference Operating Procedures
Temperature Adjustment
To display the temperature setpoint, press on
the controller. The indicator will illuminate and
the display will flash the current setpoint value. To
adjust the temperature setpoint, press the arrow
keys until the desired temperature setpoint is
indicated. Press again to confirm the change.
The display will rapidly flash the new value for a
short time and then return to the recirculating fluid
temperature.
Periodic Maintenance
Periodically inspect the reservoir fluid. If cleaning
is necessary, flush the reservoir with a cleaning
fluid compatible with the circulating system and
the cooling fluid.
The cooling fluid should be replaced periodically.
Frequency depends on the operating environment
and amount of usage.
Before changing the cooling fluid ensure it is at a
safe temperature.
Periodic vacuuming of the condenser fins is
necessary. The frequency of cleaning depends on
the operating environment. We recommend a
monthly visual inspection of the condenser after
initial installation. After several months, the
cleaning frequency will be established.
nits have a pump strainer. If debris is in the
system, the strainer will prevent the material from
being drawn into the pump and damaging the
pump vanes. A clogged strainer will also cause
increased pump discharge pressure.
After initial installation, the strainer may become
clogged. Clean the strainer after the first wee
of installation. After this first cleaning, we
recommend a monthly visual inspection. After
several months, the cleaning frequency will be
established. Before cleaning the strainer, discon-
nect the power cord from the power source and
drain the unit.
Installation
The unit has an air-cooled refrigeration system.
Air is drawn in the front of the unit and discharged
through rear and sides. Position the unit so the
intake and discharge are not impeded. Inadequate
ventilation will reduce cooling capacity and, in
extreme cases, result in compressor failure.
Excessively dusty areas should be avoided and a
periodic cleaning schedule should be instituted.
For proper operation, the unit needs to pull
substantial amounts of air through a condenser. A
build up of dust or debris on the fins of the con-
denser will lead to a loss of cooling capacity.
The unit will retain its full rated capacity in ambi-
ent temperatures up to approximately +77°F
(+25°C).
Make sure the voltage of the power source meets
the specified voltage, ±10%.
The plumbing connections are located on the rear
of the unit and are labelled and . These
connections are ½ inch FPT (¾ inch FPT for
units with CP-55 pumps). Remove the plastic
protective plugs from both plumbing connections.
Connect the fitting to the inlet of your
application. Connect the fitting to the outlet
of your application.
To fill the reservoir, remove the reservoir access
panel and locate the reservoir cap. Remove the
cap and fill the reservoir with clean cooling fluid.
For fluid recommendations refer to page 24.
Operation
Before starting the unit, double-check all electrical
and plumbing connections. Make sure the circulat-
ing system is properly filled with cooling fluid.
Place the circuit breaker located on the rear of the
unit to the up position.
To start the unit, press . To turn the unit off
press again.
The LED indicates the status of the refrigera-
tion system. It illuminates to indicate the refrigera-
tion system is removing heat from the cooling
fluid. As the operating temperature approaches
the setpoint, the LED will flash.
NOTE: nits should not be set above 45°C until
all air is purged from the fluid system. See page
25 for details
