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Operation Section 3
3-2
Part Number 020001552 5/11
How the Multiplex Works
The Model 11M is a 1/2 HP refrigeration unit that will
provide premix carbonated beverages and chilled
carbonated water for up to 12 gal (45 L) of
syrup/day or 560 drinks/day (4,000 gal/year) with a
100 ft (30 m) maximum conduit length. This is a remote
refrigeration unit that derives its peak draw capacity from
the reserve ice bank produced from a capillary tube
refrigeration system. This system is controlled to cycle
ON and OFF by the operation of the ice bank control.
The sensing bulb that controls the ice bank is located on
an adjustable bracket in the water bath.
WATER BATH ACCESS
SERVICE ACCESS
Sequence of Operation
PRE-MIX REFRIGERATION UNIT
Ice Bank Is Required
1. Check water bath for full ice bank.
2. The stabilized water bath operating temperature
must be maintained at 33°F (0.6°C) to 35°F (1.7°C).
The following is a sequence of operations for the
Multiplex Pre-mix Beverage equipment.
1. Once a drink is dispensed, the following will occur:
A. For a Syrup Tank System, the Pre-mix syrup is
manually mixed at the store. Pre-mix beverage
is then transferred to a holding tank for supply to
the Multiplex system.
B. For a Bag-In-Box System, pre-mix syrup is
drawn from a Bag-In-Box by means of a gas
driven syrup pump.
2. The brix pump mixes a 5:1 ratio pre-mixer syrup and
water into a 3 gallon holding tank located in the
pump box (the 3 gallon tank is vented to
atmosphere).
3. The carbonator pump (stainless) pulls the 5:1
pre-mix out of the 3 gallon holding tank and injects it
into the pre-mix carbonator tank where the CO
2
pressure is 35 psi (2.4 bar) on the tank.
4. The circulator pump runs continuously and
circulates water bath water through the conduit to
provide cooling for all drinks.
• End panel has two ovals in the rear of the panel with
edge trim to help protect conduit lines.
• Has a round hole in the front and back panels with
no edge trim to protect lines.
• Front panel was solid and did not allow easy access for service.
• Switch panel was mounted flush to end panel.