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IMI CORNELIUS REMCOR INC 500 REGENCY DRIVE GLENDALE HEIGHTS, IL 60139–2268
Telephone (800) 551–4423 Facsimile (800) 519–4423
Operator’s Manual
CHILLER (“CH” SERIES)
Models: CH750, CH751, and CH951
Part No. 91256
Revision Date: August 9, 2002
Revision: C
THIS DOCUMENT CONTAINS IMPORTANT INFORMATION
This Manual must be read and understood before installing or operating this equipment
PRINTED IN U.S.A
IMI CORNELIUS INC; 2002
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TABLE OF CONTENTS INSTALLATION INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 START–UP/OPER
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INTRODUCTION The REMCOR “CH” Series Water Chillers (Models CH750–A, CH751–A, and CH951–A) are specifically de- signed to cool clean liquid before it is circulated to the cooling application. The Unit includes a complete refrig- eration system and associated controls housed in a sturdy sheet metal enclosure with perforated panels for air circulation. Options include a reservoir and a choice of pumps and temperature controls to provide a self–con- tained liquid cooling/circulation system tailored
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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 water connections. Piping that is exposed to high ambient tempe
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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. T
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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. If the Unit is provided with a digital dis
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FLUID RECOMMENDATION Remcor Chillers are designed to operate with water to provide maximum performance for temperatures of 40F–100F. Distilled Water Acceptable De–Ionized Water Acceptable (1–5 MEG/OHMS) De–Ionized Water Acceptable with Stainless Steel & PVC only (5+MEG/OHMS) *No Copper or Brass Propylene Glycol Acceptable – 30% Glycol/70% Water (Lab & Industrial Grade) *For Applications with Temperatures below 40F Lab & Industrial Grade Ethylene Glycol Acceptable – 30% Glycol/70% Water *For A
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TROUBLESHOOTING GUIDE Trouble Probable Cause Remedy CHILLER DOES NOT A. No power. A. Check fuse or circuit breaker. OPERATE 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. F. Low input voltage. F. Nominal voltage ± 10% is required. NO CIRC
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PARTS LIST FIGURE 1. CH750, CH751 AND CH951 EXPLODED VIEW 620603705 Compressor (CH951) Item No. Part No. Name 8 * Relay 1 31934 Switch, Illuminated 9 * Capacitor 31935 Switch, Illuminated 10 61058, 61001 TXV CH750, CH751 2 32386 Thermostat, Eliwell No. EWPC902 61003 TXV CH951 3 620603708 Blade, Fan 11 60514 Sight Glass 4 620603711 Motor, Fan (CH550) 12 60502 Control, Low Pressure 620603712 Motor, Fan (CH750) 13 61002 Filter Drier 620603713 Motor, Fan (CH551) 14 * Receiver 5 * Condenser 15 Not U
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WARRANTY IMI Cornelius Inc. warrants that all equipment and parts are free from defects in material and workmanship un- der normal use and service. For a copy of the warranty applicable to your Cornelius, Remcor or Wilshire prod- uct, 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. 210, RIVERWOOD, NSW 2210, AUSTRALIA (61) 2 533 3122
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CORPORATE HEADQUARTERS: Remcor Incorporated 500 Regency Drive Glendale Heights, IL 60139
