Toyotomi Laser 60AT Manual
Toyotomi Laser 60AT Manual

Toyotomi Laser 60AT Manual

Vented heater
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VENTED HEATER
SERVICE MANUAL
Laser 60AT

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Table of Contents
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Summary of Contents for Toyotomi Laser 60AT

  • Page 1 VENTED HEATER SERVICE MANUAL Laser 60AT...
  • Page 2: Table Of Contents

    L A S E R H E A T I N G S Y S T E M S Table of Contents Section 1 Description Page 1-6 1- 1 Introduction 1-17 External Fuel Tank 1- 2 Physical Specifications 1-18 Fusible Link Valve 1- 3 Description of Functions 1-19 Fuel Sump (Fuel Constant Level Valve) 1- 4 Description...
  • Page 3 L A S E R H E A T I N G S Y S T E M S Table of Contents Section 4 Maintenance Page 23-26 4- 1 Introduction 4- 5 Clean Fuel Inlet Strainer 4- 2 Routine Maintenance 4- 6 Replacement of Fuses 4- 3 Inspect Intake/Exhaust Air Lines 4- 7 Fuel Contamination...
  • Page 4: Introduction

    1-2 PHYSICAL SPECIFICATIONS 1-4 DESCRIPTION Listed below, are the physical specifications that apply to the Laser: The Laser 60AT is composed of the following: Laser 60AT • A drip tray W × D × H (inches): 30"× 24" × 19"...
  • Page 5: Heat Chamber

    1-14 BLOWER MOTOR ASSEMBLY The burner ring assembly is held by spring clips to mounting posts within the burner. The blower motor assembly on Laser 60AT is a dual function fan with the intake air and exhaust air fans 1-9 BURNER COATING mounted on a common shaft.
  • Page 6: Air Circulation Fan

    The Laser 60AT circulation fan an open inlet valve and enters the tank. See Fig. 1-2.
  • Page 7 L A S E R H E A T I N G S Y S T E M S Section 1 Description 1-22 CONTROL CIRCUIT BOARD 1-23 ROOM TEMPERATURE SENSOR ( THERMISTOR ) The control circuit board provides safety timings, controls relays and provides clock and thermostat The room temperature sensor, which is capable of functions for the Laser Heater.
  • Page 8 L A S E R H E A T I N G S Y S T E M S Section 1 Description 1-24 SAFETY MECHANISMS 1-29 OVERHEAT PROTECTOR SWITCH Several safety mechanisms have been built into the Overheat protector switch is rated at 195°F (90°C). Laser Heating System.
  • Page 9 L A S E R H E A T I N G S Y S T E M S Section 1 Description Model Laser 60AT Heat exchanger Glass cylinder 3. Overheat protector Ceramic log Burner ring Exhaust fan Fuel pipe Exhaust gas 5.
  • Page 10: Introduction

    Remove all combustibles from the heating area. Laser 60AT is strictly an externally fueled system, is fully vented and will need the installation of an external fuel Unless building or fire codes dictate otherwise, the Laser storage tank.
  • Page 11: Power Requirements

    No.1 Fuel Oil) can be stored in externally located card at time of customer purchase and return it storage tanks ranging from 55 gallon (200R) drums to to TOYOTOMI U.S.A., INC. as soon as 275 gallon (1000R) tanks. When using large tanks a possible.
  • Page 12 L A S E R H E A T I N G S Y S T E M S Section 2 Installation HEATER CLEARANCE More than 6 in. (15 cm) More than 4 in. (10 cm) More than 6 in. (15 cm) More than 6 in.
  • Page 13 L A S E R H E A T I N G S Y S T E M S Section 2 Installation IMPORTANT: In open areas with strong wind, a wind break may be necessary. Strong wind Not less than 1.5 ft.
  • Page 14 L A S E R H E A T I N G S Y S T E M S Section 2 Installation 2-9 HEATER INSTALLATION 2-10 INSTALLING CERAMIC LOG In choosing a location for your Laser Vented Heater, the a. Remove four (4) screws from top plate and remove following safety tips must be considered.
  • Page 15 L A S E R H E A T I N G S Y S T E M S Section 2 Installation 2-11 INSTALLING AN EXTENSION KIT IMPORTANT: The intake hose is longer than the exhaust pipe and may need to be cut to size.
  • Page 16 L A S E R H E A T I N G S Y S T E M S Section 2 Installation 2-12 TYPICAL FUEL LIFTER PUMP INSTALLATION For more detailed information, see a fuel lifter pump manual. NOTE: Pressure reducing valve required if lifter is more than 8 ft.
  • Page 17 L A S E R H E A T I N G S Y S T E M S Section 2 Installation • The horizontal length of piping should not 2-13 FUEL TANK INSTALLATION exceed 100 feel (30 m) and should be free of sharp bends or obstructions.
  • Page 18 L A S E R H E A T I N G S Y S T E M S Section 2 Installation Outdoor Fuel Tank Tank Vent Laser 60AT Fuel filter 8-1/2 ft. maximum Fusible link valve (inside) 16 in. minimum Shut-off Valve...
  • Page 19: Introduction

    3-1 INTRODUCTION HIGH MEDIUM IGNITION BURN BURN BURN The Laser 60AT is an easy-to-operate vented heater. 280 watts 76 watts 53 watts 46 watts 4 watts Routine operation features high BTU output, automatic adjustment of room temperature, low fuel and power •...
  • Page 20: Operating Controls And Indicators

    L A S E R H E A T I N G S Y S T E M S Section 3 Operation The following operating controls are used to run the 3-3 OPERATING CONTROLS AND heater and you monitor its performance by indicator INDICATORS lamps.
  • Page 21: Pre-Operation Check List

    L A S E R H E A T I N G S Y S T E M S Section 3 Operation STEP2: Start the Fuel Flow 3-4 PRE-OPERATION CHECK LIST Gently press the red reset button one time for a period After heater installation, but prior to the Laser Heater of one second in order to release the float of the fuel start-up, inspect the system for operational readiness.
  • Page 22: Manual Operation

    L A S E R H E A T I N G S Y S T E M S Section 3 Operation flame is not detected, the heater will turn off 3-6 OPERATION and must be manually restarted. Operation of Laser Heater can be controlled manually by the user;...
  • Page 23: Automatic Operation

    L A S E R H E A T I N G S Y S T E M S Section 3 Operation STEP 3: Set Room Temperature 3-8 AUTOMATIC OPERATION A. Slide “NORMAL” temperature selector and “SET- Automatic operation is established by programming the BACK”...
  • Page 24: Turning Heater Off

    FOR TESTING PURPOSES CONDITION The Laser 60AT is protected against damage resulting The Laser 60AT can also be kept burning at designated from an overheat condition by an automatic thermostat. burning mode (HIGH, MEDIUM or LOW) manually, regardless of room temperature. This feature will be This will occur if the temperature inside the cabinet used mainly for the purpose of testing the heater.
  • Page 25 L A S E R H E A T I N G S Y S T E M S Section 3 Operation STEP 3: Unplug Heater Disconnect heater plug from outlet. STEP 4: Check for Cause of Overheating NOTE: Over heating is usually caused by objects that impede free air circulation.
  • Page 26: Routine Maintenance

    L A S E R H E A T I N G S Y S T E M S Section 4 Maintenance At the time of the demonstration or installation, heater 4-1 INTRODUCTlON maintenance should be discussed with the user; Heater maintenance is divided into two classifications;...
  • Page 27: Inspect Intake/Exhaust Air Lines

    L A S E R H E A T I N G S Y S T E M S Section 4 Maintenance ACTIVITY MATERIAL REMARKS Inspect the burner ring, and the Clean all carbon deposits. Replace if flame sensor. excessively warped or cracked. (at least every year) NOTE: If any gaskets are torn when...
  • Page 28: Verify Igniter Operation

    L A S E R H E A T I N G S Y S T E M S Section 4 Maintenance NOTE: 4-4 VERIFY IGNITER OPERATION Power should be “OFF” during the performance of this procedure. Visually inspect igniter operation. STEP 1: Disassembly WARNING: Heater is operational during this...
  • Page 29: Replacement Of Fuses

    L A S E R H E A T I N G S Y S T E M S Section 4 Maintenance STEP 3: Reassembly 4-7 FUEL CONTAMINATION A. Push the new cleaned fuel strainer back into the Fuel contamination is often difficult to diagnose, even bottom of the fuel sump.
  • Page 30 Clean all carbon on the burner bottom by using a flat-bladed Servicing is required when the Laser 60AT is not running screw driver or wire brush. Vacuum all carbon at proper efficiency. This section covers the possible causes and the corrective procedures for efficiency loses.
  • Page 31: Measurement Of Fuel Flow Rate

    L A S E R H E A T I N G S Y S T E M S Section 5 Servicing F. Burning mode lamp “MED” will change from flashing 5-4 MEASUREMENT OF FUEL FLOW RATE to continuous. After this period. heater will operate at The fuel pump for the Laser is the eleclro-mechanical “LOW”...
  • Page 32: Cleaning Blower Motor

    L A S E R H E A T I N G S Y S T E M S Section 5 Servicing Fine tuning of the fuel pump is often required to 5-5 CLEANING BLOWER MOTOR compensate for widely varying fuel qualities (i.e., Usage of low-quality kerosene (High sulfer, high density), temperatures and local operating conditions viscosity, etc.) or fuel other than No.
  • Page 33: Error Message

    L A S E R H E A T I N G S Y S T E M S Section 5 Servicing 5-7 ERROR MESSAGE ERROR PROBLEM CAUSE SOLUTION CODE POWER LAMP Disconnected power plug. Plug into 120V AC outlet. FAILS TO LIGHT Circuit board, fuse or transformer Refer to 6-5 Trouble Shooting Guide.
  • Page 34 S Y S T E M S Section 6 Trouble Shooting 6-1 ELECTRICAL SYSTEM Resistance Values COMPONENT Laser 60AT Igniter (connector G) at cold condition (73˚F (23˚C)) Transformer Primary Side (connector K) YL & YL Secondary Side BL & BL...
  • Page 35 L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-2 SCHMATIC WIRING DIAGRAM S E R V I C E M A N U A L...
  • Page 36: Trouble Shooting

    L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-3 RESISTOR/CAPACITOR VALUE Resistor Values (Ω) R 23 R 45 R 67 R 24 3.3K R 46 R 68 R 25 3.3K...
  • Page 37: Control Circuit Board Time Chart

    L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-4 CONTROL CIRCUIT BOARD TIME CHART PRE-HEAT PRE-PURGE NORMAL OPERATION POST PURGE PRE-HEAT PRE-PURGE AUTO OPERATION POST PURGE ON/OFF SWITCH (SW1) AUTO SWITCH (SW2)
  • Page 38: Trouble Shooting Guide

    L A S E R H E A T I N G S Y S T E M S GENERAL CHECKS Is power available in wall outlet? Is ON/OFF switch on? Section 6 Is power plug inserted in wall outlet? Is operation mode on “MANUAL”? Has there been a power interruption? Is set temperature in “HIGH”...
  • Page 39 L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-5 TROUBLE SHOOTING GUIDE FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION 1.
  • Page 40 L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-5 TROUBLE SHOOTING GUIDE FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Overheat condition 1.
  • Page 41 L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-5 TROUBLE SHOOTING GUIDE FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Normal Normal Check out...
  • Page 42: Parts Description

    L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-6 PARTS DESCRIPTION 64 64 S E R V I C E M A N U A L...
  • Page 43 L A S E R H E A T I N G S Y S T E M S Section 6 Trouble Shooting 6-6 PARTS DESCRIPTION REF # PART # PART NAME REF # PART # PART NAME 20479946 Front panel 20475552 Strainer gasket 20450007...
  • Page 44 TOYOTOMI U.S.A., INC. 604, Federal Road, Brookfield, CT 06804 www.toyotomiusa.com New 3/05 Printed in United States Part #B0400021...

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