Elkay ECU8*1H Series Installation, Care & Use Manual

INSTALLATION, CARE & USE MANUAL
Note: Danger! Electric shock hazard. Disconnect power before servicing unit.
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. unplated tube connector. Contractor to supply connections as required.
3. Connecting lines to be made of unplated 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).
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.
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.
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.
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

OVERLOAD
3
1 2
COMPRESSOR
C
S M
6 5
3 2
RELAY
1
ECU8*1H ECU8*2H
USES HFC-134A REFRIGERANT

INSTALLATION

IMPORTANT! INSTALLER PLEASE NOTE:

START-UP

TROUBLE SHOOTING & MAINTENANCE
COLD CONTROL
(WATER)
FAN
BLACK
WHITE GROUND
Page 1
ECU8*3H
Refrigeration Package
OPERATION OF QUICK CONNECT FITTINGS
SIMPLY PUSH IN TUBE IS SECURED
TUBE TO ATTACH IN POSITION
PUSH IN COLLET
TO RELEASE TUBE
PUSHING TUBE IN BEFORE
PULLING IT OUT HELPS TO
RELEASE TUBE
1000003082 (Rev. B - 05/16)