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General| Type | Undercounter |
|---|---|
| Weight | 180 lbs |
| Condenser Type | Air-Cooled |
| Refrigerant | R-404A |
| Power Supply | 115V, 60Hz |
General safety guidelines and types of safety notices.
General procedural guidelines and types of procedural notices.
Lists the models covered by this service manual.
Details the different ice cube sizes produced by the machines.
Explains where to find model and serial numbers on the equipment.
Provides dimensional data for various ice machine models.
Outlines the terms of the warranty for parts and labor.
Lists items and conditions not covered by the warranty.
Lists the dimensions for specific ice machine models.
Provides dimensions for various ice storage bin models.
Lists dimensions for different remote condenser models.
Lists criteria for selecting an appropriate location for the ice machine.
General guidelines for electrical service connections.
Diagrams showing electrical connections for self-contained units.
Diagrams showing electrical connections for remote units.
Guidelines for water supply, drain connections, and cooling towers.
Steps and formulas for calculating maximum allowable line set distances.
Instructions for opening the receiver service valve before operation.
Identifies major components of the ice machine for service.
Procedures for checking water level and ice thickness.
How to check and adjust the ice thickness probe settings.
Instructions for cleaning air-cooled condensers to maintain performance.
Information on cleaning water-cooled condensers and regulating valves.
Steps for cleaning and sanitizing the ice machine's interior.
Details the functionality and operation of the AuCS accessory.
Steps for safely removing components for cleaning.
Instructions for removing and cleaning the water dump valve.
Steps for removing the water pump for service.
Procedure for cleaning the ice thickness probe.
Steps for removing and cleaning the water level probe.
How to determine if the water inlet valve needs cleaning and removal.
Steps for removing and disassembling the water distribution tube.
Instructions for removing the water curtain.
Information on water treatment systems and filter replacement.
Step-by-step guide for replacing filter cartridges.
Steps for preparing the ice machine for extended periods or cold temperatures.
Details the operational sequence for various self-contained models.
Steps for initial startup and startup after automatic shutoff.
Describes the prechill and freeze steps of the ice making cycle.
Details the process of harvesting ice and initiating the next cycle.
Explains the conditions that trigger automatic shutdown.
Steps for initial startup of remote ice machines.
Describes the prechill and freeze steps for remote models.
Details the harvest process for remote ice machines.
Explains automatic shutdown for remote models.
Water purge and fill valve operation during startup.
Water flow and fill valve cycling during the freeze cycle.
Explains the safety shut-off feature for the water inlet valve.
Water purge and fill valve operation during the harvest cycle.
States no water flow occurs during automatic shut-off.
Charts showing energized components during ice making sequences.
Energized parts for remote ice machines.
Introduction to the electrical wiring diagrams.
Explains the symbols used in the wiring diagrams.
Explains specifications and diagnostic procedures for components.
Details the function, specs, and check procedure for the main fuse.
Explains the bin switch function, specs, and check procedure.
Procedures for diagnosing compressor electrical issues.
Explanation of PTCRs and diagnostic procedures.
Common reasons why PTCRs might fail to start the compressor.
Steps for visually inspecting and measuring PTCR resistance.
Details the function, specifications, and check procedures for the toggle switch.
Lists the relays on the control board and their functions.
Diagram showing the layout and connections of the control board.
General information about the Q-Model control boards.
Details built-in safety limits protecting the ice machine.
How inputs affect the control board's operation and sequence.
How the ice thickness probe initiates the harvest cycle.
Function of the harvest/safety limit indicator light.
How the freeze time lock-in feature prevents short cycling.
The built-in safety feature for maximum freeze time.
Procedure for cleaning the ice thickness probe.
Steps to diagnose problems with the ice thickness control circuit.
Troubleshooting steps for premature harvest initiation.
How the water level probe and light function.
The safety shut-off feature for the water inlet valve.
Water inlet valve operation during the freeze cycle.
Water inlet valve operation during the harvest cycle water purge.
Troubleshooting steps for water trough overfilling.
Troubleshooting steps for no water in the sump trough.
Troubleshooting guide for an ice machine that fails to start.
Explains the sequence of operation for self-contained models.
Describes the prechill phase of the refrigeration cycle.
Explains the refrigeration process during the freeze cycle.
Explains how hot gas is used to harvest ice.
Details the refrigeration sequence for remote models.
Explains how automatic shut-off protects the compressor.
Refrigeration tubing schematics for specific self-contained models.
Refrigeration tubing schematics for specific remote models.
General approach to analyzing refrigeration system malfunctions.
Key questions to ask the user before starting service.
Procedure to check ice production based on operating conditions.
Checklist for verifying proper installation.
Checklist for water system problems and corrections.
Analyzing ice formation patterns to diagnose malfunctions.
General overview of safety limit controls protecting the machine.
Troubleshooting guide for Safety Limit #1 (excessive freeze time).
Troubleshooting guide for Safety Limit #2 (excessive harvest time).
Steps to check and analyze discharge pressure.
Steps to check and analyze suction pressure during freeze cycle.
How to compare evaporator inlet/outlet temperatures for diagnosis.
How to check harvest valve temperature for leaks.
Procedure to analyze discharge line temperature.
Guide on interpreting and using the operational analysis tables.
Table for diagnosing refrigeration issues based on operational data.
Details the HPR solenoid valve and HPR valve operation.
HPR system status during freeze and harvest cycles.
Steps to diagnose HPR system functionality.
Operation and diagnosis of the headmaster control valve.
How to verify if the system is low on refrigerant charge.
Explains why a fan cycle control cannot replace a headmaster.
Specifications and diagnostics for pressure controls.
Function and specifications of the fan cycle control.
Function and specifications of the high pressure cut-out control.
Charts detailing cycle times, ice production, and pressures.
Steps for recovering refrigerant from self-contained units.
Step-by-step guide for charging self-contained ice machines.
Procedures for recovering refrigerant from remote units.
Step-by-step guide for charging remote ice machines.
Basic requirements for cleaning contaminated refrigeration systems.
How to determine the severity of system contamination.
Steps for cleaning systems with mild contamination.
Steps for cleaning systems with severe contamination.
Procedure to replace parts without losing refrigerant charge.
Details about Manitowoc filter-driers and their importance.
Table listing refrigerant charges for various models.
Definitions for recovering, recycling, and reclaiming refrigerants.
Manitowoc's policy on reusing refrigerants.
Answers common questions about HFC refrigerants and POE oils.
Information on specialized equipment for HFC servicing.
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