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CH Series Chiller Operator’s & Installation Manual

Publication Number: 620914801

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© 1999-2010, IMI Cornelius Inc.

Figure 1. Sample Data Plate

When servicing a Cornelius Chiller, it is important to note the information contained on the data plate located in 
the upper rear of the Unit.

If technical assistance is needed, the phone technician will need the Serial Number of your chiller. That information 
is found on the Data Plate along with the model number, voltage requirement and refrigerant information.

The serial Number is also needed when replacement parts are being ordered or for warranty claims. See CHILLER 
WARRANTY PAGE.

NOTE: Be sure to include the serial number on any documentation or billing information.

C

HILLER

 I

NSTALLATION

Location of Chiller

THE CHILLER MUST BE LOCATED NEAR A PROPERLY GROUNDED ELECTRICAL OUTLET. THE CIRCUIT 
SHOULD BE FUSED AND NO OTHER ELECTRICAL APPLIANCE SHOULD BE CONNECTED TO THE 
CIRCUIT. ALL ELECTRICAL WIRING MUST CONFORM TO NATIONAL AND LOCAL ELECTRICAL CODES.

The chiller must be located in a well ventilated, indoor area where ambient temperatures will remain above 40° F 
(5° C) and will never increase above 100° F (38° C). To obtain optimum cooling capacity, the ambient 
temperature should be at or below 80° F (27° C).

It is very important that the air intake and discharge sides of the chiller are not obstructed by other free standing 
objects. A minimum of two feet of space on all four sides of the chiller will be sufficient to prevent air flow obstructions.

It is also important to direct any hot air discharge from other equipment away from the air intake side of the chiller. 
Condenser air entering the “CH” unit should be below 100° F (38° C).Condenser air temperatures above 100° F 
(38° C) can cause the high pressure safety control to shut down the unit.

Electrical Connections

All wiring must conform to the National Electric Code and any applicable local codes. The chiller must be 
permanently wired by means of electrical conduit to a properly fused disconnect of proper amperage or wired to a 
properly rated power cord and plugged into an outlet with the appropriate disconnect and amperage rating. The 
electrical junction box, located on the back panel of the chiller, includes a four terminal strip for power supply 
connection. Refer to Figure 2 for the CH250 model and Figure 3 for the CH251 model.

Figure 2. Wiring Diagram (115V)

Summary of Contents for Chiller ("CH" Series) CH 250

Page 1: ...AND CH251 Operator s Installation Manual Release Date April 19 2004 Publication Number 620914801 Revision Date April 29 2010 Revision D Visit the IMI Cornelius web site at www cornelius com for all y...

Page 2: ...n trained and are skilled in working with electrical plumbing pneumatic and mechanical equipment It is assumed that appropriate safety precautions are taken and that all local safety and construction...

Page 3: ...ion 1 Chiller Installation 2 Location of Chiller 2 Electrical Connections 2 Start Up 3 Process Water Flow Units and Pump and Tank Standard 3 Standard Thermostat Eliwell IC902 3 Chiller Maintenance 4 C...

Page 4: ......

Page 5: ...ughly inspected before leaving the factory and the carrier has accepted and signed for it Any damage or irregularities should be noted at the time of delivery and immediately reported to the carrier R...

Page 6: ...ures will remain above 40 F 5 C and will never increase above 100 F 38 C To obtain optimum cooling capacity the ambient temperature should be at or below 80 F 27 C It is very important that the air in...

Page 7: ...stem is free from the obstruction that all valves are open and the reservoir when available is full push the CONTROL POWER switch to the ON position The pump should now be operating STANDARD THERMOSTA...

Page 8: ...iller Cleaning of the CONDENSER COIL FINS should be done approximately every three months depending upon cleanliness of your application Pump Motor The PUMP MOTOR should be lubricated with thirty drop...

Page 9: ...ble De Ionized Water 1 5 Meg ohms Acceptable De Ionized Water 5 Meg ohms Acceptable with Stainless Steel PVC only No Copper or Brass Propylene Glycol Lab Industrial Grade Acceptable 30 Glycol 70 Water...

Page 10: ...ler Unit runs continuously but is not cooling process water enough A Condenser is restricted B Unit low on refrigerant C Inefficient compressor D Unit is undersized for applica tion A Clean condenser...

Page 11: ...20914801 Figure 5 Cabinet Section Exploded View Table 1 115V Chiller Item No Part No Description 1 32386 Temperature Controller 2 31934 Power Switch 3 61014 Evaporator 4 620023502 Wrapper Panel 5 5188...

Page 12: ...otor 11 31488 Fan Blade 12 620023503 Panel Right Side 13 60576 Condenser 14 33082 Relay 15 32378 Transformer 16 32588 Temperature Probe 17 620023504 Panel Front 18 24389 Shroud Condenser Table 2 230V...

Page 13: ......

Page 14: ...IMI Cornelius Inc www cornelius com...

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