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CH750, CH751 & CH951 CHILLERS

Operator’s & Installation Manual

Release Date: April 19, 2002
Publication Number: 91256
Revision Date: March 25, 2014
Revision: F

Visit the Cornelius web site at www.cornelius.com for all your Literature needs.

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Summary of Contents for CH750

Page 1: ...H951 CHILLERS Operator s Installation Manual Release Date April 19 2002 Publication Number 91256 Revision Date March 25 2014 Revision F Visit the Cornelius web site at www cornelius com for all your Literature needs ...

Page 2: ...occurrences including but not limited to 1 other than normal and proper use and normal service conditions with respect to the Product 2 improper voltage 3 inadequate wiring 4 abuse 5 accident 6 alteration 7 misuse 8 neglect 9 unauthorized repair or the failure to utilize suitably qualified and trained persons to perform service and or repair of the Product 10 improper cleaning 11 failure to follow...

Page 3: ...ersonnel 1 Safety Precautions 2 Shipping And Storage 2 Introduction 3 Specifications 3 Installation Instructions 4 Location 4 Plumbing 4 Electrical 4 Start Up Operation 5 Standard Thermostat Eliwell IC902 5 Maintenance 6 Service 7 Removing Wrapper 7 Replacing Switch 7 Replacing Fan Blade and or Motor 7 Replacing Pump 7 Fluid Recommendations 8 Troubleshooting 9 Parts List 10 ...

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Page 5: ...r moderate injury or equipment damage SAFETY TIPS Carefullyreadandfollowall safety messages inthismanualandsafety signsontheunit Keepsafety signsin goodconditionandreplace missingordamageditems Learnhowtooperatetheunitandhow to usethe controls properly Do notletanyoneoperate theunitwithoutpropertraining This applianceisnotintendedforuse by very young children or infirmpersonswithoutsupervision Y o...

Page 6: ... off to the unit before any work is performed Failure to disconnect the power could result in serious injury death or equipment damage CAUTION Always be sure to keep area around the unit clean and free of clutter Failure to keep this area clean may result in injury or equipment damage SHIPPING AND STORAGE CAUTION Before shipping storing or relocating the unit the unit must be sanitized and all san...

Page 7: ... is sensed on the outlet of the chiller for closed loop systems and it is sensed on the inlet of the chiller for tank cooling systems The pump options consist of a small magnetic drive pump as standard with a variety of magnetic drive and positive displacement pumps available for particular flow and pressure requirements An optional bypass valve is available for the pump circulation system This va...

Page 8: ...a rise in ambient temperature PLUMBING Follow standard plumbing practices and local codes in making water connections Piping that is exposed to high ambient temperatures may need to be insulated to prevent condensation and or significant liquid heat gain ELECTRICAL All wiring must conform to the National Electric Code and any applicable local codes The chiller must be 1 Permanently wired by means ...

Page 9: ...tes the thermostat can be adjusted to the proper setpoint STANDARD THERMOSTAT ELIWELL IC902 The following procedure should be followed to adjust the Eliwell IC902 thermostat temperature 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 temper...

Page 10: ... The chiller requires very little normal maintenance The condenser fins should be cleaned by blowing compressed air through the condenser from the fan side as required to prevent blockage of air flow by dirt and debris that may accumulate over time The positive displacement pump motor should be lubricated with ten drops of SAE 10 oil once each year The circulation system should be drained and flus...

Page 11: ...he existing switch and note connection points 3 Remove the switch from the front panel 4 Install the new switch in the front panel and connect the leads to the new switch 5 Install the wrapper REPLACING FAN BLADE AND OR MOTOR 1 Remove the wrapper as described above 2 Remove the screws securing the fan guard to the fan shroud 3 Remove the conduit connection at the back of the motor and disconnect t...

Page 12: ... 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 For Applications with Temperatures below 40 F Lab Industrial Grade Ethylene Glycol Acceptable 30 Glycol 70 Water For Applications with Temperatures below 40 F Mineral Hydraulic Oils Commercial Automotive A...

Page 13: ...s wir ing and power lead to unit B Check wiring Correct loose or poor wire connection C Replace Switch D Allow compressor to cool then install new overload device replace com pressor if necessary E Replace relay F Nominal voltage 10 is required No Circulation of Chilled Water A Line to or from chiller is restricted B Low water level C Inoperable pump A Inspect lines and remove any obstructions B E...

Page 14: ... Blade Fan CH951 4 620603711 Motor Fan CH750 620603712 Motor Fan CH751 620603713 Motor Fan CH951 5 Condenser 6 Not Used 7 620603703 Compressor CH750 620603704 Compressor CH751 620603705 Compressor CH951 8 Relay 9 Capacitor 10 61001 TXV CH750 CH751 61003 TXV CH951 11 60514 Sight Glass 12 60502 Control Low Pressure 13 60204 Filter Drier 14 Receiver 15 Not Used 16 Pump Circulating 17 32378 Transforme...

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Page 16: ...Cornelius Inc www cornelius com ...

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