Washtech PW2 Service Manual

Washtech PW2 Service Manual

Passthrough warewasher

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PW
2
Series
3
PASSTHROUGH WAREWASHER
Service Manual

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Table of Contents
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Summarization of Contents

Installation
Positioning
Details the placement and space requirements for the dishwasher unit.
Benchwork
Provides recommendations for bench depth and height for optimal installation.
Water Supply
Specifies temperature, connection, flow rate, pressure, and backflow prevention for water supply.
Waste
Outlines the requirements for the gravity drain connection for waste disposal.
Power
Details the electrical power specifications, including phase, voltage, and wiring.
Detergent
Explains how to connect and prime the detergent pump.
Installation Troubleshooting
Provides solutions for common issues encountered during machine filling after power-up.
Operating Instructions
Start-up Procedure
Steps to prepare the machine for operation and initial power-on.
Machine Operation
How to select cycles, load racks, and start the wash cycle.
Daily Shut-down
Instructions for powering down the machine and performing basic cleaning.
Dishwashing Procedures
Pre-rinsing and Cutlery Handling
Guidance on pre-rinsing dishes and preparing cutlery for washing.
Racking and Cycle Times
Tips for optimal rack loading and selecting appropriate wash cycle durations.
Detergent Usage
Recommendations for selecting and using the correct commercial grade detergent.
Dishwashing Procedures - Cleaning and Servicing
Drying and Cleaning
Information on drying, daily cleaning of components, and wash/rinse jets.
Regular Servicing
Importance and recommendation for periodic maintenance of the machine.
Troubleshooting Chart - Filling and Cycle Issues
Filling and Heating Issues
Addresses problems related to water filling and heating of the wash/rinse cycles.
Cycle Start and Finish Problems
Solutions for issues with cycle initiation, completion, and timing.
Delays and Other Issues
Troubleshooting for delays, drainage, leaks, noise, and performance issues.
Troubleshooting Chart - Performance and Drainage Issues
Drainage and Leaks
Diagnosing and resolving issues with flooding, leaks, and splash from the door.
Wash/Rinse Arm and Noise Problems
Troubleshooting wash/rinse arm rotation and operational noise.
Performance and Drying Issues
Addressing poor wash/rinse results, low temperatures, and drying problems.
Components - Location and Basic Parts
Location and Access
Diagram and identification of component locations within the machine.
Components - Timer
Timer Functionality and Adjustment
Details the electromechanical timer's role in cycle sequencing and adjustment.
Components - Rinse Thermostat
Rinse Thermostat Operation and Adjustment
Explains the rinse thermostat's function, settings, and adjustment.
Components - Wash Thermostat
Wash Thermostat Adjustment
Describes the wash thermostat's function and manual temperature adjustment.
Components - Solenoid Valve
Solenoid Valve Details and Replacement
Information on the solenoid valve's function, specifications, and replacement.
Components - Pressure Switch
Pressure Switch Control and Adjustment
Explains the pressure switch's role in filling control and element protection.
Components - Wash Pump
Wash Pump Assembly and Replacement
Details the wash pump's function, specifications, and replacement procedure.
Components - Detergent Pump
Detergent Pump Dosing and Adjustment
Describes the detergent pump's automatic injection and dosage adjustment.
Assembly & Electrical Diagrams
Wiring Tray Assembly Diagram
Illustrates the layout and components of the wiring tray assembly.
Assembly & Electrical Diagrams - Control Panel
Control Panel Layout and Parts
Provides an exploded view and parts list for the control panel assembly.
Assembly & Electrical Diagrams - Wash System
Wash System Diagrams
Diagrams showing the components and layout of the wash system.
Assembly & Electrical Diagrams - Rinse System
Rinse System Diagrams
Illustrates the components and connections of the rinse system.
Assembly & Electrical Diagrams - Rinse Tank
Rinse Tank Assembly Details
Diagram and parts list for the rinse tank assembly, including the heating element.
Assembly & Electrical Diagrams - Solenoid Valve
Solenoid Valve Assembly Diagram
Shows the exploded view and parts list for the rinse solenoid valve assembly.
Assembly & Electrical Diagrams - Schematic
Schematic Diagram Overview
Presents the electrical schematic diagram of the machine's operation.
Assembly & Electrical Diagrams - Wiring
Wiring Diagram Details
Provides a detailed wiring diagram for the machine's electrical connections.
Appendices - Rinse Aid Injector
Rinse Aid Injector Kit Installation
Instructions for installing the hydraulic rinse aid injector kit.
Appendices - Drain Pump Kit
Drain Pump Kit Retrofit
Instructions for retrofitting the drain pump kit to the machine.

Table of Contents