Toyotomi Laser 300 Service Manual
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Toyotomi Laser 300 Service Manual

Laser vented heating system
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VENTED HEATER SERVICE MANUAL
Laser 300 (TypeA)
Laser 530 (TypeA)
Laser 560 (TypeA)
Laser 730 (TypeA)

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Summary of Contents for Toyotomi Laser 300

  • Page 1 VENTED HEATER SERVICE MANUAL Laser 300 (TypeA) Laser 530 (TypeA) Laser 560 (TypeA) Laser 730 (TypeA)

  • 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 1-8 Introduction 1-26 Fuel Delivery System Physical Specifications 1-27 Electrical System Description of Functions 1-28 Safety Mechanisms Description...

  • Page 3: Introduction

    W × D × H (inches) Weight Hole • A cabinet • A forced flue venting system 17-3/8” × 21-3/4” × 15-1/8” 31 lbs. Laser 300 (440 × 555 × 385 mm) (14kg) • A combustion system • An air circulation system 19-5/8” × 23-5/8” × 16-1/2” 38 lbs. 2-3/4 Laser 530 •...

  • Page 4: Description

    The blower motor assembly on Laser 560/730 is a dual mounting posts within the burner. function fan with the intake air and exhaust air fans Laser 300: 20479543 Laser 530: 20478343 mounted on a common shaft. Inside of the blower case Laser 560: 20478343 Laser 730: 20478643 are separated into two compartments by a sealed plate.
  • Page 5 See Fig. 1-2. Laser 300: 20470219 Laser 530: 20470319 Laser 300/Laser 530/Laser 560/Laser 730: 20470234 Laser 560: 20470419 Laser 730: 20470619...

  • Page 6: Burne

    The heater will start with normal operation. temperatures, the exhaust pipe will become hot Laser 300/Laser 530/Laser 560/Laser 730: 20470206 during operation. The insulating cloth cover protects the user from accidental contact burn with these hot 1-23 Pressure Relief Plate metal surfaces.
  • Page 7 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 1-25 Forced Flue Venting System The forced flue venting system channels air to and from the heater.

  • Page 8: Power Failure Recovery System

    L A S E R H E A T I N G S Y S T E M S Section 1 Description due to power failure. The time, however, is stored by the cycle, before turning back on. The circulation fan motor will remain on during this time.

  • Page 9: Error Codes History

    L A S E R H E A T I N G S Y S T E M S Section 1 Description ON or the unit comes back on from a power failure, the normal operation push these buttons again at the same operation lamp will flash (0.5 Hz) and both the blower time for 3 seconds, the unit will then shift back to the motor and circulation fan motor will turn to high...
  • Page 10 L A S E R H E A T I N G S Y S T E M S Section 1 Description seconds. The display will show “AL Hi”, flash for 3 times, When Fuel Pump Level is at “L 1” condition, a beep and then shift to off mode.

  • Page 11: Routine Maintenance

    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 12 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 13: Flame Rod Sensor

    Failed ignition. How to replace/attach the burner matts; n Failure to maintain combustion. n Noise from the blower motor. For Laser 300 Fuel nozzle Place the edge of rectangular burner Fig. A mat (Part # 20479513) under the fuel...

  • Page 14: Removal Of Water Deposits And

    L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 3 Servicing NOTE: A water block fuel filter is recommended on the...

  • Page 15: Lines

    L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 3 Servicing STEP 3: Reassembly of Heater Inspect Intake/Exhaust Air Lines...

  • Page 16: Filter

    L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 3 Servicing STEP 2: Inspection and Cleaning 3-10...

  • Page 17: Blower Motor Assembly

    L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 3 Servicing 3-11 Cleaning Blower Motor (Only Laser 560/730)
  • Page 18 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 19 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...
  • Page 20 S E R V I C E M A N U A L...
  • Page 21 L A S E R H E A T I N G S Y S T E M S Section 4 Trouble Shooting Electrical System S E R V I C E M A N U A L...

  • Page 22: Resistor/Capacitor Value

    L A S E R H E A T I N G S Y S T E M S Section 4 Trouble Shooting Resistor/Capacitor Value Resistor Value Laser COMPONENT Laser300 Laser530 Laser560 730/730AT Igniter at cold condition (73°F(23°)) 17Ω±10% Primary Side 1 to 3 3.7Ω±30% Secondary Side 5 to 6 0.6Ω±30%...
  • Page 23 S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart MA-252 series LASER 300 / LASER 530 / LASER 560 / LASER 730 A： LASER 300 / LASER 530 B： LASER 560 / LASER 730 Item Specification Conditions...
  • Page 24 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...

  • Page 25: Trouble Shooting

    L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 26 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 27 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 28 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 29 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 30 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 31 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 32 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 33 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 34 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Control Circuit Board Time Chart...
  • Page 35 L A S E R H E A T I N G S Y S T E M S Section 4 Trouble Shooting GENERAL CHECKS Is power available in wall outlet? Is ON/OFF switch 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 36 L A S E R H E A T I N G S Y S T E M S Section 4 Trouble Shooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Flame rod sensor touches burner Correct or change flame rod sensor Stops Does ignite?
  • Page 37 L A S E R H E A T I N G S Y S T E M S Section 4 Trouble Shooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Flame rod sensor touches burner Stops Does flame Correct or change flame rod sensor...
  • Page 38 L A S E R H E A T I N G S Y S T E M S Section 4 Trouble Shooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Clean fan cover Is window Yes.

  • Page 39: Room Temperature Sensor

    L A S E R H E A T I N G S Y S T E M S Section 4 Trouble Shooting FAILURE CHECK1 RESULT CHECK2 RESULT CHECK3 RESULT CHECK4 RESULT CHECK5 RESULT CAUSE SOLUTION Does blower Is a unit Yellow high Normal Normal...
  • Page 40 H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 300 Parts Description S E R V I C E M A N U A L...

  • Page 41: Fuse

    H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 300 Parts Description REF # PART # PART NAME REF #...
  • Page 42 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 530 Parts Description...

  • Page 43: Pressure Relief Plate

    L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 530 Parts Description...
  • Page 44 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 560 Parts Description...
  • Page 45 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 560 Parts Description...
  • Page 46 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 730 / Laser 730 AT Parts Description...
  • Page 47 L A S E R L A S E R H E A T I N G H E A T I N G S Y S T E M S S Y S T E M S Section 4 Trouble Shooting Laser 730 / Laser 730 AT Parts Description...
  • Page 48 TOYOTOMI U.S.A., INC. 604 Federal Road, Brookfield, CT 06804 www.toyotomiusa.com New 11/15 Part #B1500021 Printed in Japan...

This manual is also suitable for:

Laser 530Laser 730Laser 560

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