Cornelius CH 251, CH 250 manual Chiller Maintenance

1.Push the “SET” button located to the right of the digital display. The current set-point will be displayed.

2.Push the “UP” or “DOWN” button until the desired set-point is displayed.

3.After approximately 3 seconds, the display will show the system water temperature. The set-point can be viewed at any time by pressing the “SET” button.

The thermostat has a range that has been pre-set at the factory. The range is 40° F (5° C) to 100° F (38° C). If operation outside of this range is required, please contact the Remcor Technical Service Department.

UP	5F
DOWN	SET

CHILLER MAINTENANCE

WARNING: Disconnect electrical power to the Chiller to prevent personal injury before attempting any internal maintenance. Only qualified personnel should service the internal components or electrical wiring.

Condenser

On air–cooled Chillers, the CONDENSER FINS should be cleaned by blowing compressed air through the con- denser from the fan side. Dirt and debris accumulate on the condenser fins over time, and this build up can se- verely reduce the performance of the Chiller. Cleaning of the CONDENSER COIL FINS should be done approximately every three months, depending upon cleanliness of your application.

Fan Motor

On air–cooled Chillers, the condenser FAN MOTOR should be lubricated every 6 months with a few drops of SAE 10 oil.

Pump Motor

The PUMP MOTOR should be lubricated with thirty drops of SAE 20 oil once a year.

Circulation System

The CIRCULATION SYSTEM should be drained and flushed periodically to avoid build up and a possible flow restriction caused by contaminants.

Filters/Strainers

The STRAINER at the Chiller inlet should be removed and cleaned monthly.

The “Y” STRAINER, located inside the unit at the inlet of the pump, should be cleaned periodically depending on applications. If a reduction in flow or cavitation of the pump occurs, remove the strainer, flush it out with water, then replace.

620914801 4