Elkay ERW20-1B User manual

97560C (REV B - 4/00)
ERW20-1B/2B
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.
ERW20-1B/2B
Refrigeration Packages
Installation Instructions
A = 3/8" O.D. TUBE WATER OUT
B = 3/8" O.D. TUBE WATER INLET
C = 3/8" O.D. TUBE TANK DRAIN
LEGEND

97560C (REV. B - 4/00)
ELKAY MANUFACTURING COMPANY  2222 CAMDEN COURT  OAK BROOK, IL 60523  630.574.8484
FOR PARTS, CONTACT YOUR LOCALDISTRIBUTOR OR CALL 1.800.323.0620
ERW20-1B/2B
ITEM
NO. PART NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19*
20
21
22
23
24
100806740570
19037000
23088C
23100C
23101C
23104C
26706C
26707C
26708C
26709C
27597C
28108C
30235C
30768C
35880C
35882C
35895C
35977C
35986C
30233C
30234C
66226C
66563C
70772C
ITEMIZED PARTS LIST
DESCRIPTION
*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.
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
23
11
6
4
9
16 17
14
10
13,15,20,
21
3
24 12 1,2
WIRING DIAGRAM
7
22
5
19
8
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.
18
ITEM
NO. PART NO.
ERW20-2B - 220/240V, 50 HZ
DESCRIPTION
13
14
15
18
18A
19*
20
-
-
30560C
30781C
35997C
36000C
36003C
36002C
35998C
36001C
35999C
Terminal Cover
Solenoid Valve
Overload
Capacitor (run)
Capacitor (start)
Compressor Serv Pak
Overload Spring
Relay
Gasket