Manitowoc Multiplex 44GA04

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Part Number 020002365 08/25/2015

Post Mix Soda and Super-Chil™

Refrigeration Unit with Electronic Control

Installation, Operation and Maintenance Manual

This manual is updated as new information and models are released. Visit our website fo rthe latest manual.

www.manitowocbeverage.com/us

Table of Contents

Questions and Answers:

J
James StevensAug 5, 2025
Why is my Manitowoc Multiplex 44GA04 Chiller beverage too sweet and how to fix it?
- J
  Jason MackAug 5, 2025
  If the beverage dispensed by your Manitowoc Chiller is too sweet, it could be due to a few reasons. The flow control might be out of adjustment, so try adjusting it. Another possibility is insufficient soda flow caused by low carbonator pressure; in this case, adjust the CO pressure or change the tank. Leaks causing low CO pressure could also be the culprit, so repair any CO leaks. Finally, check for any obstructions in the water or soda line and clean them out.
T
Troy SmithAug 9, 2025
What to do if my Manitowoc Chiller is dispensing only syrup and CO2?
- G
  Gary MooreAug 9, 2025
  If your Manitowoc Chiller is only dispensing syrup and CO2, there might be a few issues. First, check the power supply and ensure the carbonator is plugged in or reset the breaker. Also, make sure the water supply is turned on. Replacing the water filter might help. Additionally, check, clean, or replace the pump strainer and the water check valve. For internal carbonator units, check for frozen water lines. If none of these work, the carbonator itself might be defective, so check, repair, or replace the carbonator pump, motor, electrode, or liquid level control.
P
Patricia GarnerAug 13, 2025
Why are my drinks foaming from Manitowoc Multiplex 44GA04 Chiller?
- R
  Rebecca AveryAug 13, 2025
  If your drinks are foaming when dispensed from your Manitowoc Chiller, it could be due to over carbonation. Check the CO supply and reset the pressure or replace the regulator as necessary. Another possible cause is dirty lines or valves, so clean and sanitize the entire system.
L
Laurie TurnerAug 18, 2025
What to do if my Manitowoc Multiplex 44GA04 Chiller beverage is not sweet enough?
- G
  Grace MorrisAug 18, 2025
  If the beverage from your Manitowoc Chiller isn't sweet enough, it could be that the flow control is out of adjustment; try adjusting it. Another possibility is that the soda flow is too high, so reset the CO pressure or replace the regulator if necessary. Also, check for any obstructions in the syrup line and clean it out.
J
John DoughertyAug 22, 2025
What to do if my Manitowoc Multiplex 44GA04 Chiller is dispensing only syrup and plain water with no pressure?
- B
  Brian HernandezAug 22, 2025
  If your Manitowoc Chiller is dispensing only syrup and plain water without pressure, ensure you install a fresh CO2 tank. Also, adjust the HP regulator to the proper setting or check, repair, or replace the HP regulator if it's defective. Inspect the CO line for any pinches, kinks, or obstructions and repair or replace as needed.
E
Emily WarrenAug 26, 2025
How to fix Manitowoc Multiplex 44GA04 when water is only dispensing with no pressure?
- C
  Caroline WilliamsAug 27, 2025
  If your Manitowoc Chiller is only dispensing water with no pressure, the regulator(s) may be out of adjustment; check and adjust them. You might also be out of CO2, so install a fresh tank. Defective regulators could also be the issue, so check, repair, or replace them. Finally, inspect the CO line for any pinches, kinks, or obstructions and repair or replace the CO line.
H
Hannah WhiteAug 30, 2025
What to do if one valve on my Manitowoc Multiplex 44GA04 Chiller won't dispense anything?
- R
  Robert JenkinsAug 30, 2025
  If one valve on your Manitowoc Chiller isn't dispensing anything, and you've confirmed there's power to the valve, it could be due to a broken wire or loose connection; replace or repair the wire or connector. Alternatively, the microswitch might be bad, so replace it.

Manitowoc Multiplex 44GA04 Specifications

General

Brand	Manitowoc
Model	Multiplex 44GA04
Category	Chiller
Language	English

Summary

Section 2 Installation

General Installation Requirements

Installation Safety Guidelines

Crucial dos and don'ts for safe installation procedures.

Unit Location and Ratings

Defines requirements for unit placement, clearances, and operational ratings.

Electrical Requirements

Details electrical specifications, circuit ampacity, and breaker requirements.

Grounding Instructions

Explains proper grounding procedures for electrical safety.

Plumbing and Water Supply

Details on water connections, pressure requirements, and diagrams.

Condenser and Pre-charged Lines

Connecting Refrigeration Lines

Steps to connect refrigerant lines securely.

Testing Procedures

Guides for leak testing CO2 and syrup circuits before operation.

Building an Ice Bank

Installation Checklist

Section 3 Operation

Startup Procedures

Electronic Control Operation

Equipment Setup and Close Procedures

Section 5 Troubleshooting

Troubleshooting Checklist

A guide to identify and correct common operational problems.

Error Code Explanations

Lists and explains specific error codes displayed by the unit.

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