Manitowoc Multiplex 42MA04

Manitowoc Multiplex 42MA04

52 pages

To Next Page

To Next Page

Loading...

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:

B
Brian LeonAug 1, 2025
Why is my Manitowoc Chiller beverage too sweet and how to fix it?
- J
  Jared FriedmanAug 1, 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.
B
Brett WeissAug 5, 2025
What to do if my Manitowoc Multiplex 42MA04 Chiller is dispensing only syrup and CO2?
- P
  Patricia BakerAug 5, 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.
L
Lisa WeeksAug 9, 2025
Why are my drinks foaming from Manitowoc Chiller?
- J
  justinsheltonAug 9, 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.
B
Brian NormanAug 14, 2025
What to do if my Manitowoc Multiplex 42MA04 Chiller beverage is not sweet enough?
- C
  Colleen GonzalezAug 14, 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.
B
Benjamin DavisAug 18, 2025
What to do if my Manitowoc Multiplex 42MA04 is dispensing only syrup and plain water with no pressure?
- B
  Brandon HeathAug 18, 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.
B
Brittany LeeAug 21, 2025
How to fix Manitowoc Multiplex 42MA04 when water is only dispensing with no pressure?
- K
  Kenneth LewisAug 22, 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.
M
Mr. Brian MorrisAug 27, 2025
What to do if one valve on my Manitowoc Multiplex 42MA04 won't dispense anything?
- T
  Travis BatesAug 27, 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 42MA04 Specifications

General

Brand	Manitowoc
Model	Multiplex 42MA04
Category	Chiller
Language	English

Summary

Safety and Procedural Notices

Types of Safety Notices

Explains Warning, Caution, and Procedural notices used in the manual.

Essential Pre-Installation Guidance

Installation, Maintenance, and Warranty

Importance of proper installation, maintenance exclusions, and hose set requirements.

Equipment Operation and User Safety

Warnings against operating misused equipment and safety for users.

Installation Fundamentals

Dimensions, Clearances, and Layout

Remote Condenser and Safety

Safe Installation Dos and Donts

Essential safety precautions and best practices for installation.

Site Requirements and Installer Prep

Location Requirements, Ratings, and Clearances

Installer Responsibilities and Site Readiness

Installer Instructions and Electrical Specs

Installer Guidance and Preparation

Ambient Requirements and Electrical Ampacity

Electrical Requirements by Model

Table detailing voltage, amps, and breaker size for each model.

Electrical Grounding and Safety Precautions

Grounding Instructions for Safety

Essential steps for proper electrical grounding to prevent shock.

General Appliance Safety Practices

Plumbing and Water Supply Setup

Potable Water Connection Details

Requirements for water pressure, lines, and code compliance.

General Plumbing Requirements

CO and Compressed Air Circuitry

COAir Circuit Diagram and Legend

Refrigeration Unit Installation Steps

Unpacking and Inspection Procedure

Unit Installation Overview and Connections

Unit Placement and Connections

Positioning and Equipment Placement

Electrical and Tower Connections

Procedures for making electrical connections and installing the dispensing tower.

Pre-charged Refrigeration Line Requirements

Line Length, Traps, and Sizing

Installing Remote Condenser and Lines

Connecting and Testing Refrigeration Lines

Connecting Pre-charged Refrigeration Lines

Testing CO Circuit for Leaks

Procedure for testing the CO2 circuit for leaks using pressure checks.

Testing Syrup Circuit for Leaks

Preparing the Ice Bank and Final Checks

Building the Ice Bank Procedure

Step-by-step guide to fill the water bath and build an ice bank.

Multiplex System Operation and Start-Up

Equipment Start-Up Procedure

Steps to initiate operation, including building an ice bank and checking circuits.

Placing the Syrup System in Operation

Electronic Control and Operation Sequence

Sequence of Operation Explained

Describes how the system cycles based on ice bank and controls.

Error Codes and Descriptions

Lists error codes, their causes, and how they are displayed.

Control Programming Mode Overview

Control Panel Programming Modes

Program Mode 1: Data Readout and Units

Advanced Control Programming Features

Program Mode 4: Error Code Management

Program Mode 5: Energy Saving Mode

ERC Operation in Energy Saving Mode

ERC Programming Flowchart Guide

ERC Programming Flowchart Overview

A visual guide to navigating and understanding the ERC programming modes.

Energy Saving Mode Flowchart

ERC Programming Flowchart - Mode 5

Detailed flowchart for enabling and operating the energy saving mode.

Periodic Maintenance Schedule

Dispensing Station Daily Maintenance

Daily tasks for checking drink temperature and cleaning valves.

Refrigeration Unit and Water Filter Care

Regular tasks for cleaning condenser, checking water bath, and filters.

CO Supply and Component Cleaning

CO Gas Supply Pressure Checks

Cleaning Dispensing Valves and Product Lines

Detailed schedules for cleaning valves, drip pans, and quick disconnects.

System Sanitization Procedures

Beverage System Cleaning Warnings

Bag-In-Box System Sanitation Guide

Step-by-step instructions for sanitizing one syrup circuit of a BIB system.

Syrup Circuit Cleaning and Figal System

Bag-In-Box System Sanitation Steps

Continues the detailed procedure for sanitizing BIB systems.

Figal Beverage System Sanitation

Preventer Maintenance and Relocation Safety

Back-Flow Preventer Maintenance Checks

Annual procedure to verify the proper function of the back-flow preventer.

Troubleshooting Common Issues

ProblemCauseCorrection Checklist

A table detailing common operational problems and their solutions.

Troubleshooting Error Codes

Error Code Definitions and Causes

Lists specific error codes (E1-E9), their meanings, and contributing factors.

Troubleshooting Flowcharts

E1, E2, E3 Error Diagnosis Flowchart

Visual guide to resolve low water pressure, low CO2 pressure, and low water level errors.

E4, E5, E6 Error Diagnosis Flowchart

Guide to diagnose high water bath temp, high water pressure, and high refrigeration temp errors.

E7, E8, E9 Error Diagnosis Flowchart

Guide to resolve high ice bank size, long carb run time, and pump issues.

Related product manuals

Manitowoc Multiplex 44MR04

Manitowoc Multiplex 44GR04

Manitowoc Multiplex 50MA04

Manitowoc Multiplex 50MR04

Manitowoc Multiplex 50GR04

Manitowoc Multiplex 50GAX04

Manitowoc Multiplex SC2000A