Elkay ECU8-3 Installation Manual

ECU8-1, ECU8-2, ECU8-3

Installation Instructions

Refrigeration Packages

INSTALLATION

1. Insure proper ventilation. In fully recessed drinking fountains be sure condenser faces louver panel and is within 1/2" (13 mm) of louver panel when panel is in place.

2. Water inlet is 3/8" (10 mm) O.D. tube connector. Contractor to supply connections as required.

3. Connecting lines to be made of copper. Thoroughly flush all lines to remove all foreign matter before

connecting to cooler.

4. Connect cooler to building supply with a shut-off valve and install a 3/8" (10 mm) water line between the valve and cooler. Remove burrs from outside of water line. Insert water line into bulkhead union until it reaches a positive stop, approximately 3/4" (19 mm).

5. Electrical: Make sure power supply is identical in voltage, cycle, and phase to that specified on cooler serial plate. Never wire the compressor directly to the power supply.

IMPORTANT! INSTALLER PLEASE NOTE:

The grounding of electrical equipment such as telephone, computers, etc., to water lines is a common procedure. This grounding may be in the building, or may occur away from the building. This grounding can cause electrical feedback into a water chiller, creating an electrolysis which causes a metallic taste or an increase in the metal content of the water. This condition is avoidable by using the proper materials indicated below. Drain fittings which are provided by the installer should be plastic to electrically isolate the chiller from the building plumbing system.

START-UP

1. Open supply line valve.

2. Purge all air from all water lines by operating bubbler valve of fountain to which cooler is connected. A steady

stream flow assures that all air is removed.

3. Rotate fan blade to assure proper clearance and free action.

4. Connect to proper 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. 5. Ventilation: Cabinet louvers and condenser fins should be periodically cleaned with a brush, air hose, or vacuum cleaner. Excess dirt or poor ventilation can cause no cold water and compressor cycling on the overload protector.

Lubrication: Motors are lifetime lubricated. Actuation of Quick Connect Water Fittings: Cooler is provided with lead-free connectors which utilize an o-ring

seal. To remove tubing from the fittings, relieve water pressure, push in on gray collar while pulling on the tubing. To insert tubing, push tube straight into fitting until it reaches a positive stop, approximately 3/4.

WIRING DIAGRAM

OPERATION OF QUICK CONNECT FITTINGS

SIMPLY PUSH IN TUBE TO ATTACH

TUBE IS SECURED

IN POSITION

PUSH IN COLLET

TO RELEASE TUBE

PUSHING TUBE IN BEFORE

PULLING IT OUT HELPS TO

RELEASE TUBE

96645C (Rev. E)

ECU8-1, ECU8-2, ECU8-3

PARTS LIST

ITEM NO.

1 2 3 4 5

7 8

9 10 11 12 13 14 15 16 17 18

PART NO.

66421C 50189C 66263C 70841C 31513C 35767C 31025C

19037000 101516143550 100806740570

20282C 31490C 70018C 30664C 66202C 66305C 70767C 70772C 31504C

EVAPORATOR SHROUD HEAT EXCHANGER UNION - BULKHEAD COLD CONTROL COMPRESSOR SERV. PAK OVERLOAD/RELAY ASSY CLIP - COMPRESSOR MTG STUD - COMPRESSOR MTG GROMMET - COMPRESSOR MTG BRACKET - FAN MTG FAN MOTOR NUT FAN BLADE DRIER CONDENSER EVAPORATOR RETAINING CLIP EVAPORATOR DRAIN PLUG POWER CORD

DESCRIPTION

220/240 50/60HZ PARTS LIST

ITEM NO.

PART NO.

35763C 31024C 31430C

COMPRESSOR SERV. PAK OVERLOAD/RELAY ASSY FAN MOTOR

*INCLUDES RELAY & OVERLOAD. IF UNDER WARRANTY REPLACE WITH SAME COMPRESSOR USED IN ORIGINAL ASSEMBLY. NOTE: ALL CORRESPONDENCE PERTAINING TO ANY OF THE ABOVE WATER COOLERS OR ORDERS FOR REPAIR PARTS MUST INCLUDE MODEL NO. AND SERIAL NO. OF COOLER, NAME AND PART NO. OF REPLACEMENT PART.

DESCRIPTION

11, 12, 13, 1417, 18

8, 9, 10

96645C (Rev. E)

FOR PARTS, CONTACT YOUR LOCAL DISTRIBUTOR OR CALL 1.800.323.0620

ELKAY MANUFACTURING COMPANY2222 CAMDEN COURTOAK BROOK, IL 60523630.574.8484