Toyotomi Laser 300 Series Service Manual
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Toyotomi Laser 300 Series Service Manual

Vented heater
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VENTED HEATER SERVICE MANUAL
Laser 300 Series
Laser 300 (Type A) / Laser 301 (Type A) /
Laser 302 (Type A)
Laser 530 Series
Laser 530 (Type A) / Laser 531 (Type A) /
Laser 532 (Type A)
Laser 560 Series
Laser 560 (Type A) / Laser 560 (Type B)
Laser 730 Series
Laser 730 (Type A) / Laser 730AT (Type A) /
Laser 731 (Type A) / Laser 732 (Type A)

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Summary of Contents for Toyotomi Laser 300 Series

  • Page 1 VENTED HEATER SERVICE MANUAL Laser 300 Series Laser 300 (Type A) / Laser 301 (Type A) / Laser 302 (Type A) Laser 530 Series Laser 530 (Type A) / Laser 531 (Type A) / Laser 532 (Type A) Laser 560 Series...

  • Page 2: Table Of Contents

    L A S E R H E A T I N G S Y S T E M S Section 1 Table of Contents Section 1 Description Page 1-9 Introduction 1-26 Fuel Delivery System Physical Specifications 1-27 Electrical System Description of Functions 1-28 Safety Mechanisms Description...

  • Page 3: Introduction

    L A S E R H E A T I N G S Y S T E M S Section 1 Description Introduction IGNITION The Laser Heating System is a completely new type of sophisticated and fuel-efficient vented system featuring its own housing, combustion and air circulation systems and a micro computer control system.

  • Page 4: Burner Ring Assembly

    Burner mat — Laser 300 Series/ Laser 730 Series The Laser Heaters blower motor has 3-speed. A magnetic Burner Coating — Laser 530 Series/ Laser 560 Series sensor insures proper fan speeds for each burning mode.

  • Page 5: Fuel Pump

    As the level of fuel rises, it passes through a control circuit. fuel inlet strainer which removes most particles and Laser 300 Series: PART #20470219 foreign matter from the fuel and then it flows up through Laser 530 Series: PART #20470319 an open inlet valve and enters the tank.

  • Page 6: Cloth Covered Exhaust Pipe

    During installation (Laser 300 Series/ Laser 530 Series only) make sure that all exhaust lines are Laser 300 Series/ Laser 530 Series: PART #20479530 completely connected. 1-24 Combustion System 1-20 Air Circulation Fan Filter (Cover)

  • Page 7: Forced Flue Venting System

    L A S E R H E A T I N G S Y S T E M S Section 1 Description Model Laser 530 Series 1-25 Forced Flue Venting System The forced flue venting system channels air to and from the 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 1-29 Power Failure Recovery System If at any time a power failure occurs during operation, heater will turn off. When the power returns, the unit will automatically restart with the following conditions.
  • Page 9 1-40 Forced Flame Detection Temperatures If the flame is detected when the power button is turned Laser 300 Series/ Laser 530 Series: above 120°C or ON or the unit comes back on from a power failure, the 248˚F normal operation lamp will flash and both the blower motor Laser 560 Series/ Laser 730 Series: above 100°C or...
  • Page 10 L A S E R H E A T I N G S Y S T E M S Section 1 Description The heater will turn ON if the flame goes out within 30 1-43 Manual Fuel Pump Operation Mode seconds from turning ON or returning back from power To put the unit in Manual Fuel Pump Operation Mode,...
  • Page 11 L A S E R H E A T I N G S Y S T E M S Section 1 Description use the “ HOUR” button, and to change up use the for getting into the Error Codes History), then press the “...
  • Page 12 L A S E R H E A T I N G S Y S T E M S Section 1 Description 16 levels can be set for each Set Mode By pressing the “TIMER” button, the set mode will shift Set Value from “L 1”...

  • Page 13: Introductlon

    L A S E R H E A T I N G S Y S T E M S Section 2 Routine Maintenance At the time of the demonstration or installation, heater Introductlon maintenance should be discussed with the user; Heater maintenance is divided into two classifications;...
  • Page 14 L A S E R H E A T I N G S Y S T E M S Section 2 Routine Maintenance ACTIVITY MATERIAL REMARKS Inspect the burner ring, and the flame Clean all carbon deposits. Replace if sensor. excessively warped or cracked.

  • Page 15: Introduction

    Heavy soot and carbon build up in burner, heat chamber and/or exchanger. How to replace/attach the burner matts; Lowered heat output. Failed ignition. For Laser 300 Series Fuel nozzle Failure to maintain combustion. Place the edge of rectangular burner Fig. A Noise from the blower motor.

  • Page 16: Removal Of Water Deposits And Contaminants From Fuel Sump And Fuel Lines

    L A S E R H E A T I N G S Y S T E M S Section 3 Servicing NOTE: A water block fuel filter is recommended on the fuel line from the tank. Cleaning The Fuel Filter or Water Block Filter A water block filter is recommended for installation in the fuel line to trap condensation.
  • Page 17 L A S E R H E A T I N G S Y S T E M S Section 3 Servicing App (smartphone) Alarm English French Unstable frequency. Fréquence instable. Check power source. Vérifiez la source d’alimentation. Manque de combustible / Absence de famme. Ignition failure / Out of fuel.
  • Page 18 L A S E R H E A T I N G S Y S T E M S Section 3 Servicing STEP 3: Reassembly of Heater Inspect Intake/Exhaust Air Lines Turn the heater to “OFF” and replace the front panel Verify that all intake/exhaust air lines are free of leaks assembly.
  • Page 19 L A S E R H E A T I N G S Y S T E M S Section 3 Servicing STEP 2: Inspection and Cleaning 3-10 Fuel Contamination A. Pull the fuel strainer out of the fuel sump. Fuel contamination is often difficult to diagnose, even B.
  • Page 20 L A S E R H E A T I N G S Y S T E M S Section 3 Servicing 3-11 Cleaning Blower Motor (Only Laser 560 Series / Laser 730 Series ) Usage of poor-quality kerosene (High sulfer, high viscosity, etc.) or fuel other than No.
  • Page 21 L A S E R H E A T I N G S Y S T E M S Section 3 Servicing Burner thermistor temperature indication Display ºC Display ºC Display ºC Display ºC Display ºC Display ºC — 137.9 108.9 88.0 66.4...
  • Page 22 L A S E R H E A T I N G S Y S T E M S Section 3 Servicing Flame electric current value indication µA µA µA µA µA µA more than S E R V I C E M A N U A L S E R V I C E M A N U AL...

  • Page 23: Resistor/Capacitor Value

    L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 300 / Laser 530 / Laser 560 series / Laser 730/ Laser 730AT Resistor/Capacitor Value 19-1 S E R V I C E M A N U A L...
  • Page 24 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 301/ Laser 302/ Laser 531/ Laser 532/ Laser 731/ Laser 732 Resistor/Capacitor Value 19-2 S E R V I C E M A N U A L S E R V I C E M A N U AL...
  • Page 25 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Resistor/Capacitor Value Resistor Value Laser300 Laser530 Laser560 Series Laser730/730AT COMPONENT Laser301/ Laser302 Laser531/ Laser532 Laser731 Laser732 Igniter at cold condition (73°F(23 °C )) 17Ω±10% Primary Side 1 to 3 A:3.7 Ω±30%...
  • Page 26 Section 4 Troubleshooting Control Circuit Board Time Chart Laser 300 Series/ Laser 530 Series/ Laser 560 Series/ Laser 730 Series B: Laser 560/ Laser 730/ Laser 730AT A: Laser 300/ Laser 530 C: Laser 301/ Laser 302/ Laser 531/ Laser 532...
  • Page 27 Section 4 Troubleshooting Control Circuit Board Time Chart Laser 300 Series/ Laser 530 Series/ Laser 560 Series/ Laser 730 Series B: Laser 560/ Laser 730/ Laser 730AT A: Laser 300/ Laser 530 C: Laser 301/ Laser 302/ Laser 531/ Laser 532...
  • Page 28 Section 4 Troubleshooting Control Circuit Board Time Chart Laser 300 Series/ Laser 530 Series/ Laser 560 Series/ Laser 730 Series B: Laser 560/ Laser 730/ Laser 730AT A: Laser 300/ Laser 530 C: Laser 301/ Laser 302/ Laser 531/ Laser 532...
  • Page 29 Section 4 Troubleshooting Control Circuit Board Time Chart Laser 300 Series/ Laser 530 Series/ Laser 560 Series/ Laser 730 Series B: Laser 560/ Laser 730/ Laser 730AT A: Laser 300/ Laser 530 C: Laser 301/ Laser 302/ Laser 531/ Laser 532...

  • Page 30: Control Circuit Board Time Chart

    Section 4 Troubleshooting Control Circuit Board Time Chart Laser 300 Series/ Laser 530 Series/ Laser 560 Series/ Laser 730 Series B: Laser 560/ Laser 730/ Laser 730AT A: Laser 300/ Laser 530 C: Laser 301/ Laser 302/ Laser 531/ Laser 532...
  • Page 31 S Y S T E M S Section 4 Troubleshooting Control Circuit Board Time Chart Sequence : Laser 300 Series/ Laser 530 Series/ Laser 560 Series / Laser 730 Series Basic Operation (normal operation 1) Fuel Recovery Figure1 ON/OFF sw...
  • Page 32 S Y S T E M S Section 4 Troubleshooting Control Circuit Board Time Chart Sequence : Laser 300 Series/ Laser 530 Series/ Laser 560 Series / Laser 730 Series Basic Operation ( normal operation 2 ) Figure2 ON/OFF sw AUTO button ▲MIN.
  • Page 33 S Y S T E M S Section 4 Troubleshooting Control Circuit Board Time Chart Sequence : Laser 300 Series/ Laser 530 Series/ Laser 560 Series / Laser 730 Series Basic Operation ( save operation ) Figure3 ON/OFF sw AUTO button ▲MIN.
  • Page 34 S Y S T E M S Section 4 Troubleshooting Control Circuit Board Time Chart Sequence : Laser 300 Series/ Laser 530 Series/ Laser 560 Series / Laser 730 Series Miss Ignition Miss flame detection Figure4 ON/OFF sw AUTO button ▲MIN.
  • Page 35 S Y S T E M S Section 4 Troubleshooting Control Circuit Board Time Chart Sequence : Laser 300 Series/ Laser 530 Series/ Laser 560 Series / Laser 730 Series Miss Ignition(It has occurred 3 times in succession) Figure5 ON/OFF sw AUTO button ▲MIN.
  • Page 36 H E A T I N G S Y S T E M S Section 4 Troubleshooting Control Circuit Board Time Chart Sequence : Laser 300 Series/ Laser 530 Series/ Laser 560 Series / Laser 730 Series Motor Lock False Flame Figure6 ON/OFF sw AUTO button ▲MIN.
  • Page 37 H E A T I N G S Y S T E M S Section 4 Troubleshooting Control Circuit Board Time Chart Sequence : Laser 300 Series/ Laser 530 Series/ Laser 560 Series / Laser 730 Series High Limit Burner Thermistor Figure7 ON/OFF sw AUTO button ▲MIN.

  • Page 38: Power Button Malfunction

    L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting GENERAL CHECKS Is power available in wall outlet? Is ON/OFF button on? 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 4 Troubleshooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Flame rod sensor touches burner Stops Does ignite? Yes.
  • Page 40 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Flame rod sensor touches burner Stops Does flame parts...
  • Page 41 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Is window Yes. Clean fan cover Curtain or other obstruction covers overheat curtain too...
  • Page 42 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Does blower Is a unit Fuel pump malfunction Replace fuel pump Yellow high...
  • Page 43 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Troubleshooting for WiFi model Solution Condition Cause Check operation manual of wireless router and/or The smartphone is not properly connected to smartphone.

  • Page 44: Troubleshooting

    L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 300 Parts Description S E R V I C E M A N U A L...
  • Page 45 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 300 Parts Description REF # PART # PART NAME REF # PART # PART NAME 20470227 Front panel assembly 20470206 High limit switch 20470827...
  • Page 46 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 301 / Laser 302 Parts Description 39-2 S E R V I C E M A N U A L S E R V I CE M A N U AL...
  • Page 47 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 301 / Laser 302 Parts Description REF # PART # PART NAME REF # PART # PART NAME 20470227 Front panel assembly (L301) 20470234...
  • Page 48 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 530 Parts Description 21 61 47 49 S E R V I C E M A N U A L...
  • Page 49 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 530 Parts Description REF # PART # PART NAME REF # PART # PART NAME 20470327 Front panel assembly 20470319 Fuel pump 20470360...
  • Page 50 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 531 / Laser 532 Parts Description 21 61 47 49 41-2 S E R V I C E M A N U A L S E R V I CE M A N U AL...
  • Page 51 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 531 / Laser 532 Parts Description REF # PART # PART NAME REF # PART # PART NAME 20477414 PCB support 20470327...
  • Page 52 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 560 Parts Description 82 81 81 82 S E R V I C E M A N U A L...
  • Page 53 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 560 Parts Description REF # PART # PART NAME REF # PART # PART NAME 20470446 Front panel assembly 20470679 Fuse 2 (10A) 20475804...
  • Page 54 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 730 / Laser 730 AT Parts Description 9,10 64,65 13,14 64,65 52 51 11,12 51 52 64,65 20 63 S E R V I C E M A N U A L...
  • Page 55 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 730 / Laser 730 AT Parts Description REF # PART # PART NAME REF # PART # PART NAME 20470646 Front panel assembly...
  • Page 56 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 731 / Laser 732 Parts Description 9,10 64,65 13,14 64,65 52 51 11,12 51 52 64,65 20 63 L732 stands for Laser 732 45-2 S E R V I C E M A N U A L...
  • Page 57 L A S E R H E A T I N G S Y S T E M S Section 4 Troubleshooting Laser 731 / Laser 732 Parts Description REF # PART # PART NAME REF # PART # PART NAME 20470678 Fuse 1 (5A) 20470646...
  • Page 58 Memo S E R V I C E M A N U A L S E R V I CE M A N U AL...
  • Page 59 Memo S E R V I C E M A N U A L...
  • Page 60 TOYOTOMI U.S.A., INC. 604 Federal Road, Brookfield, CT 06804 www.toyotomiusa.com Rev. 00/00 Part #00000000 Printed in Japan...

This manual is also suitable for:

Laser 530 seriesLaser 560 seriesLaser 730 seriesLaser 300Laser 301Laser 302 ... Show all

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