Elkay HRC4-20W-1B Installation Manual

HRC4-20W-1B

Installation Instructions

HRC4-20W-1B

Refrigeration Packages

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) inches above wall.

This chiller has been designed for use with potable water and includes an o-ring seal on the drain plug. The fitting should be replaced if the unit is to be used with more aggressive fluids.

For use with photo processing applications, adjust cold control to warmer settings.

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

97562C (Rev. A - 4/00)

ITEMIZED PARTS LIST

ITEM

PART NO.

NO.

100806740570

19037000

23088C

23100C

23101C

23104C

26706C

26707C

26708C

26709C

27597C

28108C

30235C

30768C

35880C

35882C

35895C

35977C

19*

35986C

30233C

30234C

66226C

66563C

70772C

*INCLUDES RELAY & 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.

DESCRIPTION

Grommet Clip Bracket Conduit 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

HRC4-20W-1B

INSTALLATION

1. 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 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.

2. 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.

3. Connect cooler to building supply line with a shut-off valve and install a union connection between the valve and cooler.

4. 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

1. Open supply line valve.

2. Purge air from all water lines by operating bubbler valve of fountain.

3. Connect to electrical power.

TROUBLE SHOOTING & MAINTENANCE Temperature Control: Factory set for 50° F water (+/- 5°) under normal

conditions. For colder water, adjust screw on item no. 16 CW.

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.

WIRING DIAGRAM

13,15,20 21

97562C (Rev. A - 4/00)

1,2