Back Room Package; Bag-In-Box System - Manitowoc Servend MD Series Installation & Service Manual

Creating Carbonated Water:
1. Incoming tap water - should be at a minimum dy-
namic pressure of 40 psi and maximum static pres-
sure of 55 psi.
2. Carbonator Water pump motor - Powers the wa-
ter pump. The water pump motor is part of the car-
bonator pump deck.
3. Carbonator Water pump - Pumps tap water into
the carbonator tank. The water pump is part of the
carbonator. The incoming water for the carbonator
must be first ran through the pump before connect-
ing to the proper cold plate inlet.
4. Internal/External Carbonator tank - Combines
CO gas and tap water to form carbonated water.
2
The "carbonator" is the carbonator tank, water pump
and water pump motor.
On an ambient system, after being carbonated, the car-
bonated water is fed from the carbonator to the dispenser
cold plate for chilling. At the beverage valve, chilled water
and chilled syrup are mixed to create the finished bever-
age. A cold carbonated system pre-chills the water be-
fore entering the carbonator tank.
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OPERATION

BACK ROOM PACKAGE

BAG-IN-BOX SYSTEM

Pumping Syrup to the Dispenser:
5. CO
6. Cylinder pressure gauge - Indicates amount of
7. Primary pressure regulator - Lowers the CO
8. Lowered outgoing pressure - Set for 75 psi.
9. Secondary pressure regulator - Lowers the CO
10. Syrup pump - Draws syrup out of the bag-in-box
11. Bag-In-Box syrup cartons - Box which contains a
cylinder - Holds highly pressurized carbon di-
2
oxide (CO ). The CO cylinder is a steel or alumi-
2 2
num cylinder tank. CO gas flows to the primary
2
pressure regulator.
CO gas in the cylinder.
2
pressure, to 100 psi, so the CO
proper pressure to enter the carbonator regulator.
Gauge indicated lowered outgoing pressure from
the CO cylinder after being routed through the pri-
2
mary pressure regulator at 100 psi..
gas pressure before the CO
pump. CO pressure, 60 to 75 PSI, activates the
2
syrup pump.
syrup package. Syrup flows through the syrup lines
to the dispenser for chilling, then dispensing. There
is a syrup pump for each bag-in-box syrup system.
plastic bag, filled with syrup.
Installation and Service Manual
gas
2
gas will be at the
2
2
gas flows to the syrup
2
25