Celebrating over 30 years of excellence in manufacturing ultrasonic cleaning
equipment, electropolishing equipment and associated chemistries
ESMA, Inc.
P. O. BOX 734 * SOUTH HOLLAND, IL 60473 * (800)-276-2466 * FAX (708)331-8919
INSTALLATION INSTRUCTIONS & CABINET REQUIREMENTS FOR
ULTRASONIC WASHER MODEL E789
1. INTRODUCTION
The units automatically perform a cleaning cycle, the major steps of which are:
• Ultrasonic cleaning
• Ultrasonic rinsing (hot tap water)
• Ultrasonic rinsing (deionized water)-unit E291 only • Hot air drying
The E789 unit has only one rinse solenoid (primary), which is connected to the hot tap water supply.
The result is a finished product ready for the next step (sterilizing, packaging, assembly, storage).
The unit consists of three sections: 1) Tank Module-to be installed in the counter 2) Control Module-to
be installed in front of counter and 3) Power Module- to be installed under the counter.
The Tank Module is manufactured from 316 stainless steel, with 12 potting transducers mounted on the
bottom. The tank is equipped with two fill solenoids (E789 has only one), a drain solenoid and a low level
control to prevent electronic damage if water pressure is lost. The tank is fitted with a 304 stainless
hinged cover housing the fan and heater for air-drying.
The Control Module is manufactured from 304 stainless and
contains the switches to start the FILL or CLEAN cycles and stop the process manually, if needed.
The Power Module contains the self-tuning modular circuit boards, programmable controller, high
velocity fan to cool the electronics and RFI filter to eliminate high frequency noise. PLEASE READ THESE
INSTRUCTIONS THOROUGHLY BEFORE INSTALLATION AND OPERATION. CALL (800) 276-2466 IF YOU
HAVE ANY QUESTIONS.
2. INSTALLATION
If the control module is to be placed directly in front of tank, allow 5 inches between counter opening and
front of cabinet (diagram 2). Also, 28 inches of clearance is necessary under the counter for drains.
Control Module-Cut opening of 4-1/4" x 10 1/4" in front of cabinet. The overall flange of unit on front of
cabinet is 5" x 12", so center unit accordingly. Module will be mounted later with 4 No. 8 wood screws.
Tank Module-Cut opening of 18" x 11-1/4" in top of counter.
The overall flange of unit on top of counter is 20" x 13", so center unit accordingly. Place tank in opening
and mark on counter the mounting studs welded underneath top plate. Remove tank and drill mounting
holes with 1/4" drill bit. Do not mount tank until control module opening is cut out.
Tank Module should be set in counter first. A gasket is glued to the underside of the top plate to prevent
liquid from seeping into the counter. Place the tank-mounting studs into the pre-drilled holes in counter
and tighten down with 8 x 32 nuts and washers, which are supplied. (DO NOT OVERTIGHTEN).
Power Module measures 8" x 16' x 18" D. However, I" clearance is necessary both at the front and back
of unit for proper ventilation. The electrical connections from tank and control modules, attached to the
top of the module, require additional 2 to 3 inches of space.
3. PLUMBING HOOK-UP
A. Water Input (Diagrams 3, 4 & 5, see last page)
The primary solenoid should be connected to a hot water source. This solenoid has a 1/2" NPT female
opening. An adapter and a high-pressure hose, with a filtered washer are supplied. The high-pressure
hose should connect the solenoid to a shut-off valve (not supplied) at your water source. A flow regulator
is incorporated into the unit, therefore, the shut-off valve must riot restrict the flow more than 3.5 GPM.
Also, a backflow regulator (not supplied) may have to be attached at your water source to comply with
local regulations. On Model E291 only, a deionized water source is connected to the secondary solenoid
following the instructions given for the primary solenoid (Diagram 5).
B. Water Output (Diagram 3
,
see last page)
1 1/2" x 16" elbow (A), which is supplied, is to be attached with a slip nut (B) and washer (C) to the 1 1/2"
output nipple. (This piece can be hooked up prior to installation of the tank but that is not necessary).
The tailpiece (D) with 3/4" input (supplied) is to be attached to elbow (A) with a slip nut (E) and an
adapting washer
(F). Attached to the tailpiece, with a hose clamp (G), will be 2' of 3/4 hose (1). The other end of this hose is
to be attached to hose adapter (H), with the hose clamp (G), after (H) is threaded into the drain solenoid
using Teflon tape or joint compound.
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