CHAPTER II
SEC II CONT. · SEC III
well located inside the tank. A remote connection at the
bottom of the tank may be used as an auxiliary cold
water source or as a means of flushing the tank.
Incoming water enters the top of the tank. Cold water is
drawn from the bottom of the tank by the use of a pick-
up tube. After leaving the tank, the water is distributed
to the bubbler valve and glass filler.
SHELL TYPE COOLING UNIT
(b)
Coil-On-Coil Cooler Assembly - The coil-on-coil
cooler assembly is composed of water coil with the
evaporator coil wrapped around it and all solder
bonded together. The accumulator is a part of the
cooling assembly. Water enters the bottom of the
water coil and displaces air which may be present.
The water, upon leaving the water coil, is
distributed to the water regulating valve, glass filler
and remote connection.
(c)
Shell Type Cooler Assembly - The shell type
cooler assembly is used for bottle water coolers. It
consists of a shell with the evaporator coil
externally solder bonded. The accumulator is a
part of the cooler assembly. A normal water level
is automatically maintained in the shell by the
inverted bottle. As cold water is drawn from the
bottom of the shell, the air seal covering the neck
of the bottle is exposed and allows additional
water to enter the shell.
2.
DRAIN OR PRECOOLER
A drain is provided to direct the flow of waste water from
the bowl of the cabinet to the drain connection in the
cooler. A rubber gasket is provided between the cabinet
top and the drain tube to prevent external leakage of the
waste water.
Larger capacity coolers use a precooler which
acts as a heat exchanger. The waste water absorbs
heat from the incoming water before entering the cooling
unit. The precooler is a specially constructed drain with
the water coil solder bonded to the exterior and an
internal runner solder bonded to direct the flow of waste
water to the inside wall of the drain.
3.
WATER REGULATING VALVE
Water from the cooling assembly travels to the water
regulating valve which dispenses a properly metered
flow of water for drinking. There are several different
types of water regulating valves in common use. One
type commonly found is a complete unit, mounted on the
cabinet top, known as a bubbler valve.
With the wide range of water regulating valves,
specific information regarding each valve can be had on
request. Please give model, style, and serial number
with this request.
SECTION III - DESCRIPTION OF CABINET REMOVAL
When necessary to enter the cabinet the following
procedure is recommended:
1.
FULL WRAP-AROUND CABINET
1 - Disconnect drain plumbing.
2
- Remove water regulating valve.
3
- Remove two screws from back of cabinet top,
when provided. Lift the back and pull forward.
This disengages front pins.
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