Toyostove Laser 73 H - User Manual

VENTED HEATER SERVICE MANUAL
Laser 56 (Type E, F, G)
Laser 73 (Type H, I, J)
©1998 Toyotomi U.S.A. Inc.
Laser56/73 (S.M)(E,F,G-H,I,J) 12.7.25 11:37 AM ページ b

Summary

Section 1 Description

1-5 COMBUSTION SYSTEM

Explains how fuel and air are burned to produce heat.

1-20 FUEL SUMP

Explains the constant level valve and float mechanism.

1-17 FUEL DELIVERY SYSTEM

Explains how fuel moves from tank to burner.

1-24 ROOM TEMPERATURE SENSOR

Section 1 Description

1-25 SAFETY MECHANISMS

Lists built-in safety features and error codes.

1-30 OVERHEAT PROTECTOR SWITCH

Explains its function and reset procedure.

1-31 IGNITER CLEANING SYSTEM

1-26 POWER FAILURE RECOVERY SYSTEM

Section 2 Installation

2-4 POWER REQUIREMENTS

2-14 FOR HIGH ALTITUDE USE

2-2 PHYSICAL PLACEMENT OF HEATER

2-5 FUEL TANK REQUIREMENTS

Section 2 Installation

2-13 FUEL TANK INSTALLATION

Provides guidance on fuel tank installation and safety.

Section 3 Operation

3-3 OPERATING CONTROLS AND INDICATORS

Explains the control panel functions.

3-8 AUTOMATIC OPERATION

Explains programming for automatic operation.

3-10 AUTOMATIC OPERATION BY WEEKLY SET-BACK TIMER

How to use the weekly timer.

3-11 INSTALLATION OF WEEKLY SET-BACK TIMER

Section 3 Operation

3-6 OPERATION

Details manual and automatic operation modes.

3-16 RECOVERY FROM OVERHEAT CONDITION

Steps to take after an overheat condition.

3-7 MANUAL OPERATION

Step-by-step guide for manual operation.

Section 3 Operation

3-13 TURNING HEATER OFF

3-15 POWER FAILURE RECOVERY SYSTEM

Section 4 Maintenance

4-3 INSPECT INTAKE;EXHAUST AIR LINES

4-4 VERIFY IGNITER OPERATION

4-2 ROUTINE MAINTENANCE

Schedule for regular maintenance tasks.

4-5 CLEAN FUEL INLET STRAINER

Section 4 Maintenance

4-6 REPLACEMENT OF FUSES

4-7 FUEL CONTAMINATION

Procedure for diagnosing and handling fuel contamination.

Section 5 Servicing

5-3 REMOVAL OF WATER DEPOSITS AND CONTAMINANTS FROM FUEL SUMP AND FUEL LINES

Procedure for cleaning fuel system.

5-5 CLEANING BLOWER MOTOR

5-2 CLEANING THE HEAT CHAMBER AND BURNER

Detailed instructions for cleaning.

5-4 MEASUREMENT OF FUEL FLOW RATE

Section 5 Servicing

5-7 ERROR MESSAGE

Lists error codes, causes, and solutions.

Section 6 Trouble Shooting

6-2 SCHEMATIC WIRING DIAGRAM

Detailed wiring diagram.

6-4 CONTROL CIRCUIT BOARD TIME CHART

Chart showing operation timing.

Section 6 Trouble Shooting

6-3 RESISTOR;CAPACITOR VALUE

Section 6 Trouble Shooting

6-5 TROUBLE SHOOTING GUIDE

Flowchart for diagnosing issues.

Toyostove Laser 73 H Specifications