MULTIPLEX CO2 Tank Conversion Kit Installation guide

Brand: MULTIPLEX

Model: CO2 Tank Conversion Kit

Type: Installation guide

MULTIPLEX CO2 Tank Conversion Kit, designed for Multiplex Model 37K and 44K Refrigeration Units and Stands, offers a convenient and safe way to convert your unit to use CO2 tanks. The kit includes primary CO2 tank regulators, gaskets, an 8 ft line assembly, a tank bracket and chain assembly, and a CO2 warning label. It provides easy installation and allows you to switch between two CO2 tanks for uninterrupted operation.

In accordance with our policy of continuous product development and improvement,

this information is subject to change at any time without notice.

EI212147 Revision B (KAK) 3 August, 2001

Manitowoc Beverage Equipment

2100 Future Drive  Sellersburg, IN 47172-1868

Tel: 812.246.7000, 800.367.4233  Fax: 812.246.9922

www.manitowocbeverage.com

Foodservice Group

Multiplex Beverage Equipment Installation Instructions for

CO2 Tank Conversion Kit

P.N. 00212147, P.N. 00212505, and P.N. 00215099

Figure 1

CO2 Caution

Label

Nylon Clamp Screw

and Washer

Tank Bracket and

Chain Assembly

/4 - 20 x

/2"

Hex Head Screw

and Nut

Introduction

The following instructions cover the installation and oper-

ating procedures of a Multiplex CO2 tank conversion kit. This

kit is designed for use with a Multiplex Model 37K and Model

44K Refrigeration Units and Stands only.

Model 37K installation

1. Locate the tank bracket and chain assembly provided with

kit.

2. Mount the tank bracket to the Model 37K unit stand with

the four (4)

/4-20 x

/2" Hex Head screws and nuts pro-

vided in kit as shown in figure 1.

Note: Since bracket is not supplied with back-up regulator

kit, the CO

2 tank(s) should be secured to the wall or stand

using eyebolt with chain supplied. Chain is on the upper third

of the CO

2 tank(s).

EI212147 Revision B (KAK) 3 August, 2001

Equipment Installation Instructions

Caution: To Avoid Serious Injury

Important: Read the following warnings before beginning an installation. Failure to do so

may result in possible death or serious injury.

DO Adhere to all National and Local Plumbing and Electrical Safety Codes.

DO Turn “off” incoming electrical service switches when servicing, installing, or

repairing equipment.

DO Check that all flare fittings on the carbonation tank(s) are tight. This check

should be performed with a wrench to ensure a quality seal.

DO Inspect pressure on Regulators before starting up equipment.

DO Protect eyes when working around refrigerants.

DO Use caution when handling metal surface edges of all equipment.

DO Handle CO

2 cylinders and gauges with care. Secure cylinders properly against

abrasion.

DO Store CO2 cylinder(s) in well ventilated areas.

DO NOT Throw or drop a CO2 cylinder. Secure the cylinder(s) in an upright position

with a chain.

DO NOT Connect the CO2 cylinder(s) directly to the 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).

DO NOT Store CO2 cylinders in temperature above 125°F (51.7°C) near furnaces,

radiator or sources of heat.

DO NOT Release CO2 gas from old cylinder.

DO NOT Touch Refrigeration lines inside units, some may exceed temperatures of

200°F (93.3°C).

Notice: 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.

EI212147 Revision B (KAK) 3 August, 2001

Equipment Installation Instructions

Figure 2

Figure 3

/8 OD Tubing

Tank Change-over

Valve Assembly

Screw, Handle, and

Retainer Ring

/4" MPT x

/8" MF Adapter

Remove and discard.

/4" MPT x

/8" OD

Compression Fitting

Primary CO2

Tank

Regulators

and Gaskets

8 ft (2.4 m)

Line Assembly

2 Tanks

3. Position two (2) CO2 tanks against the edge of the tank

bracket. Secure CO

2 tanks in place with chains (refer to

figure 2).

4. Locate the two (2) primary CO

2 tank regulators labeled

“A” and “B”, and gaskets supplied with the kit. Attach a

primary CO

2 tank regulator and gasket to each CO2 tank

as shown in figure 2.

Note: If the CO

2 tanks with metric threads are supplied, the

nuts on the regulators must be changed. To replace the nuts,

remove the nipple and nut assembly from the regulator. Lo-

cate the metric nuts (supplied) and reinstall the nipple and

nut assembly. Be sure to apply the thread sealer to nipple

threads to avoid leaks.

5. Open the Model 37K Control Panel door. Remove and dis-

card the

/4" MPT x

/8" MF adaptor fitting located at the

top of the CO

2 manifold. Replace adaptor fitting with

the

/ 4" MP x

/8" OD compression fitting and compression

nut supplied in kit (refer to figure 3).

Note: When installing backup regulator kit, you must use the

/4" MPT x

/8" MF adaptor on side "B" of the tank Change-over

Valve assembly.

6. Locate the tank Change-over Valve assembly and the one

(1)

/8 OD piece of tubing supplied in kit. Cut tubing to

size and insert the tubing into the Change-over Valve com-

pression fitting. Do not tighten compression fitting nut at

this time (refer to figure 3).

7. Remove the screw, handle, and retainer nut or ring from

the CO

2 Change-over Valve. Install the Change-over Valve

in the control panel opening labeled CO2 Change-over Valve

tank A & B. Tighten the compression nuts at the Change-

over Valve and the CO

2 manifold. Replace retainer nut,

handle, and screw (refer to figure 3).

8. Locate the two (2) 8 ft (2.4 m) line assemblies supplied

with the kit. Attach the end of the line assembly with

swivel nut fitting to the elbow fitting of the two (2) high

pressure regulators (refer to figure 2).

9. Neatly route the opposite ends of the two (2) 8 ft line

assemblies up through the opening in the Control Panel

door. Attach the line coming from the primary regulator

marked “A” to the Barb fitting on the “A” side of the

Change-over Valve. Attach the line coming from regulator

marked “B” to the Barb fitting on the “B” side of the

Change-over Valve (refer to figure 3).

EI212147 Revision B (KAK) 3 August, 2001

Equipment Installation Instructions

Figure 4 Figure 5

10. Attach the two (2) 8 ft line assemblies to the refrigera-

tion unit stand with the nylon clamp, screw, and washer

provided in kit (refer to figure 1).

11. Attach the CO

2 warning label to the side of the refrigera-

tion unit (refer to figure 1).

12. Once system is installed, turn the handle of the tank

Change-over Valve assembly to the “A” position. Turn “on”

the CO

2 tank and allow CO2 to enter the system. Check

the “A” tank pressure gauge. It should read 90 psi (6.2

bar). If not, adjust the regulator accordingly. Turn the

handle of the tank Change-over Valve to the “B” position

and repeat this procedure.

Model 44K installation

1. Locate the tank bracket and chain assembly provided with

kit.

2. Mount the tank bracket to the Model 44K unit stand with

the four (4)

/4-20 x

/2" Hex Head screws and nuts pro-

vided in kit as shown in figure 5.

Note: If the CO

2 tanks with metric threads are supplied, the

nuts on the regulators must be changed. To replace the nuts,

remove the nipple and nut assembly from the regulator. Lo-

cate the metric nuts (supplied) and reinstall the nipple and

nut assembly. Be sure to apply the thread sealer to nipple

threads to avoid leaks.

3. Position two (2) CO

2 tanks against the edge of the tank

bracket. Secure CO

2 tanks in place with chains (see fig-

ure 6).

4. Locate the two (2) primary CO

2 tank regulators labeled

“A” and “B”, and gaskets supplied with the kit. Attach a

primary CO

2 tank regulator and gasket to each CO2 tank as

shown in figure 6.

“B” Side

“A” Side

8 ft Line

Assembly

CO2 Caution

Label

Tank

Bracket

and Chain

Assembly

/4" - 20 x

/2"

Hex Head Screw

and Nut

Figure 6

Primary CO2 Tank

Regulators and

Gasket

8 ft Line

Assembly

2 Tanks

5. Locate the tank Change-over Valve assembly provided in

kit. Using the #10-32 screws provided in kit, mount the

valve on unit control panel (location for valve will be

marked "CO

2 Change-over Valve - Tanks A and B").

6. Locate the two (2) 8 ft line assemblies supplied with the

kit. Attach the end of the line assembly with swivel nut

fitting to the elbow fitting of the two (2) high pressure

regulators (refer to figure 6).

EI212147 Revision B (KAK) 3 August, 2001

Equipment Installation Instructions

Figure 7

7. Neatly route the opposite ends of the two (2) 8 ft line

assemblies underneath the top of the stand and to the

unit's control panel. Attach the line coming from the pri-

mary regulator marked “A” to the fitting on the “A” side

of the Change-over Valve. Attach the line coming form

the regulator marked “B” to the fitting on the “B” side of

the Change-over Valve (refer to figure 7).

Note: When installing backup regulator kit, a

/4" MPT x

/8"

MF adaptor should be installed on the “B” side of the Change-

over Valve.

8. Attach the two (2) 8 ft line assemblies to the refrigera-

tion unit stand with the nylon clamp, screw, and washer

provided in kit.

9. Locate the

/4" line assembly provided in kit. Attach one (1)

end of the line assembly to the remaining side of the

Change-over Valve. Route remaining end of line assembly

to the CO

2 Supply Manifold and trim excess line accord-

ingly.

11. Connect the swivel nut adaptor (supplied in kit) to the

end of

/4" line assembly. Secure with tab clamp. Route

and connect the line assembly to the CO

2 Supply Manifold

(refer to figure 7).

12. Attach the CO

2 warning label to the side of the refrigera-

tion unit (refer to figure 5).

13. Once system is installed turn the handle of the tank

Change-over Valve Assembly to the “A” position. Turn “on”

the CO

2 tank and allow CO2 to enter the stem. Check the

“A” tank pressure gauge. It should read 90 psi (6.2 bar).

If not, adjust the regulator accordingly. Turn the handle

of the tank Change-over Valve to the “B” position and

repeat this procedure.

CO2 Supply

Manifold

“A” Side

“B” Side

To CO

2 Supply

Manifold

MULTIPLEX CO2 Tank Conversion Kit Installation guide

MULTIPLEX CO2 Tank Conversion Kit Installation guide

MULTIPLEX CO2 Tank Conversion Kit Installation guide

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