Multiplex SL282-84 Installation Manual

Instructions

FIGURE 1

4

Low CO

2 Alarm

Assembly

10

Connect the fifth 61” CO

2

line to the low pressure

regulator if one of the

beverages is sugar free

8

Hold Down Clip for Cap

Tube of Pressure Control

1

Medium & Low Pressure

Regulator Assembly

If all Syrups are Sugar
Based, remove cap nut and
install fifth CO

2 line. Place

cap nut on outlet of low
pressure regulator outlet

9

Connect the four or five 61”

CO

2 gas lines to the medium

pressure regulator assembly

2

Air/CO

2 Changeover

Valve Assembly

5

Copper line assembly connecting the

medium & low pressure regulator

assembly to the Air/CO

2 changeover valve

6

Copper line assembly connecting the Air/CO

2

changeover valve assembly to the changeover

valve assembly for the CO

2 tanks 1&2

7

Nut connecting the pressure switch to

the Air/CO

2 changeover valve

assembly

Attach the CO2 line from the
carbonator tank of the
remote unit to the remaining
flare fitting of the CO

2 tank

1&2 change over valve
assembly

3

CO

2 Tank 1&2

changeover valve

assembly

13

Connect to power supply

11

Connect the remaining two

120” CO

2 lines to the two

outlets of the CO

2 tank 1&2

changeover valve

12

Attach the two primary CO

2

tank regulators to the 120”

CO

2 lines of thee CO2 tank

1&2 changeover valv e

assembly

!

Caution

Subject: SL282-84 C02 KIT - Export

00206960

12/09

INTRODUCTION

The CO
assemblies that must be attached to the front or back pre­punched panels of either the Model 1 1 or 38 remote
refrigeration units. Follow numerical assembly sequence.

Manitowoc Foodservice Sellersburg, 2100 Future Drive, Sellersburg, IN 47172, Tel: [phone], www.manitowocbeverage.com

2 control kit consists of four basic pre-assembled

To Avoid Serious Injury Read the following warnings
before beginning an installation. Failure to do so may
result in possible death or serious injury.

SL282-84 C02 KIT - Export 00206960

!

Warning

DO Adhere to all National and Local Plumbing and
DO Turn “Off” incoming electrical service switches

DO Check that all flare fittings on the carbonation

DO Inspect pressure on Regulators before starting
DO Protect eyes when working around refrigerants.

DO Use caution when handling metal surface
DO Handle CO
DO Stor e CO

Electrical Safety Codes.
when servicing, installing, or repairing

equipment.
tank(s) are tight. This check should be

performed with a wrench to ensure a quality
seal.

up equipment.

edges of all equipment.

2 cylinders and gauges with care.

Secure cylinders properly against abrasion.

2 cylinder(s) in well ventilated areas.

KIT INSTRUCTIONS

Refer to FIGURE 1 for the following procedures.

1. The medium and low pressure regulator assembly must
be attached to the panel by two sheet metal screws
diagonally .

2. The air/C0

2 changeover valve assembly must be

positioned at the bottom of the panel with two sheet metal
screws horizontally .

3. The CO

2 changeover valve assembly for the CO2 tanks

1& 2 must be positioned on the left and slightly above the
air/CO

2 changeover valve assembly with two sheet met al

screws horizontally .

4. The low CO

2 alarm assembly must be positioned on the

upper left side and attached with two sheet metal screws
diagonally to expose the two mounting holes. The cover
must be removed to expose the two mounting holes.

5. Connect the medium and low pressure regulator
assembly to the air/C0

2 changeover valve assembly by

using the longer of the two 1/4" copper tube assemblies.

6. Connect the air/C0

2 changeover assembly to the C02

tank changeover valve assembly by using the short “U”
shaped 1/4" copper tube assembly .

7. Connect the small copper cap tube extending from the
bottom of the C0
the tee fitting attached to the air/C0

2 control assembly box to the 1/4" MF of

2 changeover valve

assembly .

DO NOT Throw or drop a CO
DO NOT Connect the CO2 cylinder(s) directly to the

DO NOT Store CO

DO NOT Release CO
DO NOT T ouch Refrigeration lines inside units, some

cylinder(s) in an upright position with a chain.
product container. Doing so will result in an

explosion causing possible death or injury. Best
to connect the CO2 cylinder(s) to a regulator(s).

2 cylinders in temperature above 125˚

F (51. 7˚ C) near furnaces, radiator or sources
of heat.

may exceed temperatures of 200˚ F (93.3˚ C).

2 cylinder . Secure the

2 gas from old cylinder.

NOTE: Water pipe connections and fixtures directly connected to a

potable water supply shall be sized, installed and maintained in
accordance with Federal, State, and Local codes

DANGER OF ELECTRICAL SHOCK - Disconnect and
lock out all electrical power sources before performing
service or maintenance on this machine -- except when
electrical tests are being performed by qualified service
personnel.

.

8. Position the hold down clip over one section of copper
cap tube coil and attach clip to side of unit with sheet
metal screw .

9. Connect four or five 61" CO

2 gas lines to the 1/4" MF

fitting of the manifold assembly of the medium pressure
regulator.

NOTE: The fittings have check valves.

10. Connect the fifth 61" CO

2 line to the 1/4" MF fitting of the

low pressure regulator if one of the beverages is sugar
free. If all syrups are sugar based, remove the cap nut
from the remaining fitting of the medium pressure
regulator and attach the fifth CO

2 line. Install the cap nut

on the 1/4" MF fitting of the low pressure regulator.

1 1. Connect the two remaining 120" CO

CO

2 tank changeover valve. Att ach the C02 line

2 plastic lines to the

connected to the carbonator tank in the remote unit to the
remaining 1/4" MF fitting of the C0

2 tank changeover

valve assembly .

12. Attach the two CO
connect the two 120" CO

2 primary regulators to CO2 t anks then

2 lines from the C02 t ank

changeover valve assembly to the regulators. Do not
open the CO
quick disconnects to the five CO

2 tank valves at this time. Attach the C02 gas

2 gas plastic lines.

Manitowoc Foodservice Sellersburg, 2100 Future Drive, Sellersburg, IN 47172, Tel: [phone], www.manitowocbeverage.com

SL282-84 C02 KIT - Export 00206960

FIGURE 2

TRANS.

RED

GRD.

220

VOLTS

LIGHT

BLU

WHT

BUZZER

PRESSURE

SW.

T esting For CO2 Leaks

T o test the assembly to make Sure there are no leaks, the

CO

2 gas line previously installed from the carbonator t ank

to the CO
be removed. Remove the cap nut from the sir/CO

2 tank changeover valve assembly will have to

2

changeover valve. Turn the knob with the directional
pointer to the left, counterclockwise.

Screw the cap nut onto the 1/4" MF where the CO

2 line to

the carbonator was removed. Turn the knob with the
directional pointer to either CO
CO

2 cylinder . Adjust the primary regulator to 90 P.S.I., set

2 tank 1 or 2. Open that

the medium pressure regulator to 60 P.S.I, and set the
low pressure regulator to 14-16 P.S.I.

Allow the CO

minutes, then turn the CO

2 tank pressure to remain on fo r three

2 tank handle to the "OFF"

position. The CO

2 tank gauge should remain constant, no

drop in pressure.

If the CO

2 tank gauge drops in pressure, locate source of

leak and correct. A soap solution when applied to the
connections will pinpoint the leak.

Remove the cap nut, replace the CO

2 gas line from the

carbonator tank, and screw the cap nut back on the air/
CO

2 changeover valve.

13. Wire the electrical supply to the transformer as shown in
the wiring diagram in FIGURE 2. The CO

2 control

buzzer should sound and the lamp should illuminate
when the CO

2 pressure on the primary CO2 tank

regulator drops to 70 P. S. I. and shut of f when the
pressure reached 90 P.S.I.

Manitowoc Foodservice Sellersburg, 2100 Future Drive, Sellersburg, IN 47172, Tel: [phone], www.manitowocbeverage.com