CHILLERS MODELS: CH550 AND CH551 Operator’s & Installation Manual Release Date: August 9, 2002 Publication Number: 91272 Revision Date: May 10, 2010 Revision: D Visit the IMI Cornelius web site at www.cornelius.com for all your Literature needs.
CH SERIES CHILLER OPERATOR’S & INSTALLATION MANUAL The products, technical information and instructions contained in this manual are subject to change without notice. These instructions are not intended to cover all details or variations of the equipment, nor to provide for every possible contingency in the installation, operation or maintenance of this equipment.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CH550 and CH551 Chiller Operator’s & Installation Manual INTRODUCTION The Cornelius “CH” Series Water Chillers (Models CH550-A and CH551-A) are specifically designed to cool clean water 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.
CH550 and CH551 Chiller Operator’s & Installation Manual INSTALLATION INSTRUCTIONS LOCATION Locate the chiller indoors in a well ventilated area with ambient temperatures in the range of 65° 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.
CH550 and CH551 Chiller Operator’s & Installation Manual Standard Thermostat Eliwell IC902 The following procedure should be followed to adjust the Eliwell IC902 thremostat termperature setting: 1. To set the SET POINT, press and release the SET button. SET displays. 2. Press the SET button again, the current SET POINT is displayed. Press the UP or DOWN button to change the SET POINT to the desired temperature. 3. Pres the fnc button twice to exit the program.
CH550 and CH551 Chiller Operator’s & Installation Manual Replacing Thermostat 1. Remove the wrapper, as described in Removing Wrapper. 2. Loosen the screw terminals securing the wires at the rear of the thermostat. Note connection points and remove the wires. 3. Remove the screw securing the mounting bracket to the back of the thermostat. 4. Remove the thermostat from the front panel. 5. Install the new thermostat in the front panel and secure it with the mounting bracket. 6.
CH550 and CH551 Chiller Operator’s & Installation Manual FLUID RECOMMENDATION Cornelius chillers are designed to operate with water to provide maximum performance for temperatures of 40° F (4.4° C) to 100° F (37.8° C).
CH550 and CH551 Chiller Operator’s & Installation Manual TROUBLESHOOTING 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. If repairs to the chiller must be made, disconnect electrical power to the unit, then shut off the water source. Trouble Chiller does not operate. No circulation of chilled water. Inadequate cooling. Problem Cause Remedy A.
CH550 and CH551 Chiller Operator’s & Installation Manual PARTS LIST Figure 8. Cabinet Section Exploded View Table 1. Cabinet Section Table 1. Cabinet Section Item No. 1 2 3 4 5 6 7 8 9 10 11 Part No. 31934 31935 32386 620603708 620603711 620603709 Switch, Illuminated (CH550), 115V Switch, Illuminated (CH551), 230V Thermostat, Eliwell No.
CH550 and CH551 Chiller Operator’s & Installation Manual 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 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 Inc. www.cornelius.
