Elkay ERW20-1C User's Manual
Contents
1. MANUFACTURING COMPANY 2222 CAMDEN COURT OAK BROOK IL 60523 630 574 8484 REPAIR SERVICE INFORMATION TOLL FREE NUMBER 1 800 260 6640 FOR PARTS CONTACT YOUR LOCAL DISTRIBUTOR OR CALL 1 800 323 0620 97644C Rev B 2 042. ERW20 1C Installation Instructions ERW20 1C Refrigeration Packages NOTICE This water cooler must be connected to the water supply using a dielectric coupling NOTE It is important to insure proper ventilation Allow a minimum clearance of 12 inches 305 mm in front and 3 inches 76mm in the rear of the unit If unit is to be installed in an enclosure allow the following clearances around unit 1 inch 25mm each side 3 inches 76mm in the rear 3 inches 76mm above wall B ae This chiller has been designed for use with potable water and le 81 8 includes an o ring seal on the drain plug The fitting should 205mm be replaced if the unit is to be used with more aggressive 412 fluids 114mm For use with photo processing applications adjust cold control to warmer settings 1014 pooo 2 260mm Eaa 4 430mm d sei 4 19 16 1 40mm B A ALTERNATE ELECTRICAL ELECTRICAL TEMPERATURE ZA LOCATION ADJUSTMENT 47 8 1374 T 123mm aemm a amp San eee 11 4 32mm 9 5 32 b CONDENSER aii 5 WATER OUTLET ahead ji 27 6 N M 62mm Z al 3 8 O D TUBE o e CONDENSER c WATER INLET _ lt aN e a E lt gt R SSS eS I 1 c H 21 8 54mm LEGEND A 3 8 O D TUBE WATER OUT B 3 8 O D TUBE WATER INLET C 3 8 O D TUBE TANK DRAIN 97644C Rev B 2 04 ITEM
3. IZED PARTS LIST Mee DESCRIPTION 1 OMDNODOAARWN L8BBNBARBL 50196C 28180C 23101C 23104C 28178C 28179C 23089C 28175C 27957C 28176C 30235C 30768C 30812C 35882C 35895C 35921C 36074C 30233C 30234C 66632C 66625C 70772C 66204C 66629C 36079C 35845C 35846C 30560C 70482C 70483C 70274C Grommet Panel Insulation Box Rear Panel End Box Insulation Front Terminal Box Grille Cover Terminal Box Rear Panel Cover Insulation Box Base Ass y Terminal Cover Solenoid Valve Overload Cold Control Cold Control Freeze Protect Capacitor Compressor Service Pak Overload Spring Clip Compressor Condenser Evaporator Drain Plug Drier Heat Exchanger Relay Cap Capacitor End Bracket Capacitor Terminal Cover Male Connector Fitting Elbow Fitting Compressor Mounting Sleeve INCLUDES RELAY amp OVERLOAD IF UNDER WARRANTY REPLACE WITH SAME COMPRESSOR USED IN ORIGINAL ASSEMBLY NOTE All correspondence pertaining to any of the above water cooler or orders for repair parts MUST include model number and serial number of cooler name and part number of replacement part BLACK GREEN f WHITE Qw OVERLOAD BLACK BLACK CAPACITOR WIRING DIAGRAM 3 ERW20 1C INSTALLATION Potable water inlet and outlet are 3 8 9 mm O D tube located on top of unit Water cooled condenser inlet and outlet are 3 8 9 mm O D tube
4. located on right front of unit Installer to provide air gap at condenser water outlet to comply with local plumbing specifications Contractor to supply connections as required Connecting lines to be of copper thoroughly flushed to remove all foreign matter before being connected to cooler If flushing does not remove all particles a water strainer should be installed in supply line Connect cooler to building supply line with a shut off valve and install a union connection between the valve and cooler Electrical Make sure power supply is identical in voltage cycle and phase to that specified on cooler serial plate Never wire compressor directly to the power supply START UP Open supply line valve Purge air from all water lines by operating bubbler valve of fountain Connect to electrical power TROUBLE SHOOTING amp MAINTENANCE Temperature Control Factory set for 50 F water under normal conditions To adjust water temperature turn screw on Item No 14 clockwise for colder counter clockwise for warmer Ventilation Cabinet louvers should be periodically cleaned with brush air hose or vacuum cleaner Excess dirt or poor ventilation can cause no cold water and compressor cycling on the compressor overload protector Lubrication Motors are lifetime lubricated FREEZE CONTROL THERMOSTAT COLD CONTROL THERMOSTAT 24 20 30 11 13 18 19 25 28 16 26 27 22 10 ELKAY
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