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Monitor 22 - User Manual

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MONiTOR
HEATING
SYSTEMS
Service
Manual
MONITOR422
.
MONITOR 22
MONITOR
21,
MONITOR
441
MONITOR
41
MONITOR
40

Table of Contents

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Summary

Section 1: Description

Specifications and Features

Details on heater specifications, special features, safety features, and general description of the Monitor system.

Combustion System Components

Description of key components within the combustion system like the chamber, burner pot, igniter, and air system.

Fuel Delivery and Electrical Systems

Explanation of the fuel delivery system, tanks, valves, solenoid pump, and the electrical system components.

Safety Mechanisms and Controls

Overview of safety mechanisms, exhaust pipe insulation, fan guard, fuses, overheat protection, and reset temperature.

Section 2: Installation

Introduction, Placement, and Requirements

Guidance on installation introduction, physical placement, drilling requirements, and power needs.

Fuel Tank, Sensor, and Building Codes

Details on fuel tank requirements, temperature sensor wiring, building codes, and unpacking instructions.

Heater and Flue Pipe Installation Details

Instructions for heater installation, flue pipe clearances, and installation of window kits.

Special Installation Kits and Options

Procedures for installing window locks, extension kits, and managing flue pipe clearances.

Fuel Storage and Heater Placement

Information on elbow adapter kit uses, fuel tank installation, and final heater placement considerations.

Section 3: Operation

Introduction and Specifications

Overview of Monitor heater operation, introduction, and operating specifications for different models.

Controls and Indicators Overview

Description of operating controls and indicators used to manage the heater's performance.

Pre-Operation Checks and Basic Operation

A checklist for pre-operation inspection and details on basic heater operation procedures.

Manual and Automatic Operation Modes

Instructions for manual heater operation, economy plus mode, and automatic heater operation settings.

Heater Settings and Shutdown

Guidance on reprogramming the heater, heat sensor placement, and the shutdown procedure.

Fuel Depletion and Recovery Procedures

Steps for handling out-of-fuel situations and recovery after power failure or overheat conditions.

Fuse Recovery and Timing Charts

Procedure for recovery from a blown fuse and operation timing charts for M-441 and M-422.

Section 4: Maintenance

Introduction and Periodic Maintenance

Overview of maintenance types and schedule for periodic upkeep of the Monitor heater.

Inspecting Exhaust and Air Piping

Procedure for inspecting exhaust and air piping for leaks, blockages, and damage.

Verifying Igniter and Cleaning Filters

Steps to verify igniter operation and clean the fuel constant level valve filter.

Corrective Maintenance and Fuel Issues

Procedures for fuse replacement, cleaning fusible link valve fittings, and addressing fuel contamination.

Section 5: Servicing

Introduction and Fuel Flow Rate

Introduction to servicing, signs of improper performance, and fuel flow rate measurement.

Water Deposits and Fuel Line Cleaning

Procedure for removing water deposits and contaminants from the fuel constant level valve and lines.

Burn Chamber and Burner Pot Cleaning

Instructions for cleaning the burn chamber and burner pot, including component removal and reassembly.

Fuel Inlet Cleaning

Guidance on cleaning the fuel inlet nozzle when servicing the combustion chamber and burner pot.

Section 6: Troubleshooting

Component Resistance and Voltage Data

Provides resistance values for Monitor 422/441 and 22/41 components, and voltage readings.

Test Point Voltage Specifications

Details test point voltage readings for various operation modes and stages.

Failure Mode Indications and General Checks

Lists failure indications by digital display and provides general diagnostic checks.

Symptom-Based Troubleshooting Flowcharts

Diagnostic flowcharts to identify and correct specific heater symptoms and malfunctions.

Section 7: Electrical System

Printed Circuit Wiring Diagram

Detailed schematic diagram of the heater's printed circuit board and electrical layout.

Connection of Lead Wires

Illustrates the connection of lead wires to the main printed wiring board for various models.

Manometer Readings

Monitor 441 Exploded View

Monitor 441 Service Parts List

Monitor 422 Exploded View

Monitor 422 Service Parts List

Monitor 41 Exploded View

Monitor 41 Service Parts List

Monitor 22 Exploded View

Monitor 22 Service Parts List

Monitor 22 Specifications

General IconGeneral
BrandMonitor
Model22
CategoryHeating System
LanguageEnglish

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