IMI CORNELIUS REMCOR INC 500 REGENCY DRIVE GLENDALE HEIGHTS, IL 60139–2268 Telephone (800) 551–4423 Facsimile (866) 394–5140 Operator’s Manual CHILLER (“CH” SERIES) Models: CH750, CH751, and CH951 Part No. 91256 Revision Date: February 20, 2002 Revision: B THIS DOCUMENT CONTAINS IMPORTANT INFORMATION This Manual must be read and understood before installing or operating this equipment IMI CORNELIUS INC; 2002 PRINTED IN U.S.
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INTRODUCTION The REMCOR “CH” Series Liquid Chillers (Models CH750–A, CH751–A, and CH951–A) are specifically designed to cool clean liquid before it is circulated to the cooling application. The Unit includes a complete refrigeration system and associated controls housed in a sturdy sheet metal enclosure with perforated panels for air circulation.
INSTALLATION INSTRUCTIONS LOCATION Locate the chiller indoors in a well ventilated area with ambient temperatures in the range of 65° F to 100° F. Allow a minimum of six inches of clearance around the chiller for proper air circulation. Avoid hot air discharge from other equipment or enclosed areas where heat could build up and cause a rise in ambient temperature. PLUMBING Follow standard plumbing practices and local codes in making liquid connections.
Once these start–up procedures are complete, the chiller is ready for standard operation. NOTE: 1) Never operate the chiller with enclosure panels removed. 2) Always use the illuminated switch to turn off the chiller when it is not being used. 3) Always ensure that all air inlets and outlets are free of obstructions. MAINTENANCE WARNING: Disconnect electrical power from the Unit before performing any of the following maintenance procedures. The chiller requires very little normal maintenance.
5. Install the new thermostat in the front panel and secure it with the mounting bracket. 6. Reconnect the wires at back of the thermostat. 7. Install the wrapper. REPLACING ELECTRONIC DIFFERENTIAL THERMOSTAT 1. Remove the wrapper as specified in REMOVING WRAPPER. 2. Remove the two screws securing the thermostat cover and remove the cover. 3. Loosen the screw terminals securing all wires to the thermostat. Note connection points and remove the wires. 4.
TROUBLESHOOTING GUIDE Trouble CHILLER DOES NOT OPERATE NO CIRCULATION OF CHILLED LIQUID INADEQUATE COOLING Probable Cause Remedy A. No power. A. Check fuse or circuit breaker. B. Loose or poor wire connection. B. Check wiring. Correct for loose or poor wire connection. C. Inoperable ON–OFF switch. C. Replace ON–OFF switch. D. Overload device open. D. Allow compressor to cool, then install new overload device; replace compressor if necessary. E. Inoperable relay. E. Replace relay.
PARTS LIST FIGURE 1. CH750, CH751 AND CH951 EXPLODED VIEW Item No. Part No. Name 620603705 Compressor (CH951) 8 * Relay 31934 Switch, Illuminated 9 * Capacitor 31935 Switch, Illuminated 10 61058, 61001 TXV CH750, CH751 2 32386 Thermostat, Eliwell No.
WARRANTY IMI Cornelius Inc. warrants that all equipment and parts are free from defects in material and workmanship under normal use and service. For a copy of the warranty applicable to your Cornelius, Remcor or Wilshire product, in your country, please write, fax or telephone the IMI Cornelius office nearest you. Please provide the equipment model number, serial number and the date of purchase. IMI Cornelius Offices AUSTRALIA P.O.
CORPORATE HEADQUARTERS: Remcor Incorporated 500 Regency Drive Glendale Heights, IL 60139
