Elkay ERW32 User manual

98470C (Rev. B - 06/11)
ERW32-1D
1. This unit is intended for remote installation only. It is important to insure proper ventilation. A minimum of 6 inches (152mm) to the front must be maintained, and 6 inches (152mm) to the rear of the unit. 2. This chiller has been designed for use with potable water and includes an o-ring seal on the drain plug. This fitting should be replaced if the unit is to be used with more aggressive fluids. 3. Installer to provide air gap at condenser water outlet to comply with local plumbing specifications. 4. Connecting lines to be made of copper. Thoroughly flush all lines to remove all foreign matter before connecting to cooler. If flushing does not remove all particles, a water strainer should be installed in the supply line. 5. Connect cooler to building supply with a shut-off valve and install a union connection between the valve and the cooler. 6. 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.
ERW32
Refrigeration Package
Installation Instructions
LEGEND A = 3/8" O.D. TUBE WATER INLET B = 3/8" O.D. TUBE WATER OUT C = TEMPERATUREADJUSTMENT D = ELECTRICAL E = 3/8" O.D. TUBE TANK DRAIN F = 3/8" O.D. TUBE CONDENSER WATER OUTLET G = 3/8" O.D. TUBE CONDENSER WATER INLET H = FREEZE CONTROL
INSTALLATION
NOTICE: This water cooler must be connected to the water supply using a dielectric coupling.

98470C (Rev. B- 06/11)
ERW32-1D
DESCRIPTION
28165C
28218C
28166C
28032C
23158C
26701C
34783005
35882C
66633C
36252C
30768C
36310C
35984C
35989C
35988C
35990C
30039C
50196C
66624C
70772C
66621C
70020C
66623C
30040C
36045C
70482C
70274C
70483C
35895C
1
2
3
4
5
6
7
8
9
10
11
*12
13
14
15
16
18
19
20
21
22
23
24
25
26
27
28
29
30
PART NO.
BOX - INSULATION
BASE ASSY
PANEL
PANEL-FRONT/REAR
COVER- INSULATION BOX
CABINET
WASHER- LOCK
CONTROL - COLD
CONDENSERASSY
CSIRBOXASSY
SOLENOIDVALVE
COMPRESSORSERVICEPAK
OVERLOAD
GASKET - TERM COVER
OVERLOAD SPRING
BALESTRAP
ELECTRICALBOX
GROMMET - COMPRESSOR MTG
EVAPORATOR ASSY
EVAPORATOR DRAIN PLUG
DRIER
NUT
HEATEXCHANGER
ELECTRICALBOX COVER
OVERLOADCOVER
MALE CONNECTOR FITTING
SLEEVE-COMPRESSOR
ELBOWFITTING
FREEZECONTROL
ITEM NO.
PARTS LIST
*INCLUDESCOMPRESSOR, CSIR BOXASSY, & OVERLOAD.IFUNDER
WARRANTYREPLACE WITH SAME COMPRESSOR USED IN
ORIGINALASSEMBLY.
NOTE:ALLCORRESPONDENCEPERTAINING TOANYOFTHEABOVE
WATER COOLERS ORORDERS FOR REPAIR PARTSMUST INCLUDE
MODEL NO.AND SERIAL NO. OF COOLER, NAMEAND PART NO. OF
REPLACEMENTPART.
NOTE: FORUSE WITH PHOTOPROCESSINGAPPLICATIONS,
ADJUST THERMOSTAT TO WARMER SETTINGS.
ELKAY MANUFACTURING COMPANY•2222 CAMDEN COURT•OAK BROOK, IL 60521•630.574.8484•TELEX: RCA 289234
FOR PARTS, CONTACT YOUR LOCAL DISTRIBUTOR OR CALL 1.800.323.0620
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.
Temperature Control: Factory set for 50°F water under normal conditions. To
adjust water temperature, turn screw on Item No. 8 clockwise for colder, counter
clockwise for warmer.
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
plug which utilizes an o-ring seal. To remove plug from cooler, relieve water
pressure, pull the collar towards the fitting and pull the fitting off the tube. To install
plug, push fitting straight onto tubing until it reaches a positive stop, approximately
3/4”.
IMPORTANT! INSTALLER PLEASE NOTE:
TROUBLE SHOOTING & MAINTENANCE
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.
TUBE IS SECURED
IN POSITION
SIMPLY PUSH IN
TUBE TO ATTACH PUSH IN COLLET TO RELEASE TUBE
PUSHING TUBE IN BEFORE
PULLING IT OUT HELPS TO
RELEASE TUBE
OPERATIONOF QUICKCONNECT FITTINGS
19, 28
21 11 9
1
564
7, 20, 23
822
2
3
13, 14, 15, 16, 26
10
24
12
27, 29
18, 25
30