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General| Model | QY0494N |
|---|---|
| Type | Undercounter Ice Maker |
| Ice Type | Nugget Ice |
| Weight | 180 lbs |
| Condenser | Air-cooled |
| Water Connection | 3/8" FPT |
| Refrigerant | R-404A |
| Voltage | 115V |
| Production | 490 lbs/24 hours |
| Ice Production | 490 lbs/24 hours |
Covers model numbers, reading them, cube sizes, serial number location, and warranty details.
Provides dimensional data for Q320/370/420 ice machines and various ice storage bins.
Details dimensions for Q200-1000, Q1300-1800 ice machines and remote condensers.
Details criteria for selecting an appropriate location and required clearances for installation.
Instructions for leveling the ice storage bin and installing the air-cooled baffle.
Covers general wiring, voltage, fuses, breakers, and minimum circuit ampacity.
Provides wiring diagrams for self-contained and remote models, covering various configurations.
Details guidelines for water supply, inlet lines, drain connections, and cooling tower applications.
Covers remote condenser installation, line set routing, and calculating distances.
A checklist for proper installation and specific checks for remote models.
Identifies key components and outlines routine checks for water level and ice thickness.
Explains adjustment of the water purge for special water systems.
Provides instructions for cleaning air-cooled and water-cooled condensers.
Outlines procedures and recommendations for cleaning and sanitizing the ice machine's interior.
Details step-by-step instructions for using ice machine cleaner and sanitizer.
Explains AuCS operation and procedures for manual start of cleaning cycles.
Provides instructions for removing specific parts for cleaning and sanitizing.
Explains how to remove and clean the water pump and ice thickness probe.
Guides on removing and cleaning the water level probe and inlet valve.
Details procedures for removing and cleaning the water distribution tube and curtain.
Discusses water treatment systems and provides instructions for replacing filter cartridges.
Provides procedures for preparing the ice machine for extended non-use or freezing conditions.
Details start-up, water purge, refrigeration start, prechill, and freeze stages for self-contained models.
Details the ice harvest process and the automatic shut-off mechanism for self-contained models.
Covers start-up, water purge, refrigeration start, prechill, and freeze stages for remote models.
Details the harvest process and automatic shut-off for remote models.
Describes initial start-up, water purge, freeze cycle flow, and water inlet valve safety shut-off.
Details the water purge and sediment flushing during the harvest cycle.
Notes that no water flows during an automatic shut-off period.
Provides charts detailing energized components during operational sequences for self-contained and remote models.
Explains electrical sequences using diagrams for various self-contained and remote models.
Details specifications and diagnostics for key electrical components like fuses, switches, and controls.
Covers diagnostics for compressor issues like resistance, seized motor, high amps, and capacitors.
Explains PTCR function, start sequence, troubleshooting, and checking procedures.
Details diagnostics for ice thickness probe and water level control circuitry.
Provides troubleshooting guides for diagnosing why an ice machine fails to run or has water flow problems.
Describes prechill, freeze, harvest, and auto shut-off sequences for self-contained units.
Outlines prechill, freeze, harvest, and auto shut-off sequences for remote models.
Provides tubing schematics and guides for analyzing refrigeration system performance.
Offers methods for analyzing operational issues, ice formation, pressures, and temperatures.
Covers questions to ask before service and how to check ice production.
Provides checklists for visual installation inspection and water system troubleshooting.
Explains how analyzing evaporator ice formation helps diagnose malfunctions.
Explains control board safety limits, their triggers, and how to interpret indications.
Guides on analyzing discharge and suction pressures to diagnose refrigeration problems.
Explains comparing evaporator inlet and outlet temperatures for diagnosing single expansion valve machines.
Details how to check harvest valve temperatures to diagnose leaks or malfunctions.
Explains how discharge line temperature trends can indicate refrigeration system issues.
Provides instructions on using tables to diagnose refrigeration problems by correlating symptoms with causes.
Covers HPR system diagnostics and the operation/diagnostics of the headmaster control valve.
Provides charts with cycle times, ice production, and operating pressures for various Q-Series models.
Covers procedures for refrigerant recovery, evacuation, charging, and system contamination cleanup.
Describes requirements for restoring contaminated systems, including severity determination and cleanup.
Provides a procedure to replace pressure controls without discharging the refrigerant.
Discusses filter-driers and lists total system refrigerant charges for various models.
Defines terms related to refrigerant handling and outlines the policy on refrigerant re-use.
Addresses common questions regarding HFC refrigerants, compressor oil, and servicing procedures.
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