Toyostove Laser 56 E - 1-19 Fusible Link Valve; 1-20 Fuel Sump; 1-21 Fuel Pump; 1-22 Electrical System

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SERVICE MANUAL 4

LASER HEATING SYSTEMS

Laser56/73 (S.M)(E,F,G-H,I,J) 12.7.25 11:37 AM ページ 4

Main Page

Table of Contents2
Physical Specifications4
Description of Functions4
Simplified Operative Cycle4
Composition of Laser Heaters4
Combustion System5
Heat Chamber5
Burner Ring Assembly.burner Mat5
Flame Rod Sensor. Igniter. Forced Flue Venting System5
Flue Pipe6
Blower Motor Assembly6
Heat Exchanger. Air Circulation Fan6
Fuel Delivery System. External Fuel Tank6
Fusible Link Valve7
Fuel Sump/Fuel Pump7
Electrical System. Control Circuit Board7
Room Temperature Sensor7
Fuel Sump/Fuel Constant Level Valve for Laser 56 Type E and Laser 73 Type H Diagram8
Fuel Sump (Fuel Constant Level Valve) for Laser 56 Types F & G and Laser 73 Types I & J Diagram8
Safery Mechanisms. Power Failure Recovery System9
Cloth Cover Exhaust Pipe. Air Circulation Fan Cover9
Fuse. Overheat Protector Switch9
Igniter Cleaning System9
Combustion System for 56 Type E Diagram10
Combustion System for 56 Type F & G Diagram10
Combustion System for 73 Type H Diagram11
Combustion System for 73 Type I & J Diagram11
Physical Placement of Heater12
Drilling Requirements12
Recommended Tool Kit for Service Technicians12
Installation13
Power Requirements13
Fuel Tank Requirements.13
Room Temperature Sensor Wiring Requirements. Unpacking13
Heater Clearance Laser 56 Diagram14
Heater Clearance Laser 73 Diagram14
Overhead Clearance for Flue Pipe Diagram14
Frontal and Side Clearances for Flue Pipe Diagram14
Flue Pipe Clearances Diagrams15
Heater Installation16
Laser 73/56 Template16
Installation of Flue Pipe Window Kit: Install Flue Pipe in Window Kit16
Short or Long Window Kit Diagrams16
Installation of Flue Pipe Window Kit: Install Window Kit in the Window17
Installation of Flue Pipe Window Kit: Parts List17
Installation of Flue Pipe Window Kit: Install Window Lock18
Installing and Extension Kit19
Extention Pipe Kits19
Typical Laser Kerosene Lifter Pump20
Fuel Tank Installation21
Fueling Options Available21
Fuel Line Connection Diagram22
For High Altitude Use23
Main Circuit Board Diagram23
Operation24
Operating Specifications24
Heater Performance Specifications Table 124
Heater Performance Specifications Table 225
Operating Controls and Indicators26
Pre-Operation Check List27
Operating Temperature Range Diagram27
Before Operation27
Manual Operation28
Automatic Operation29
Automatic Operation by Weekly Set-Back Timer30
Installation of Weekly Set-Back Timer30
Room Temperature Sensor Installation32
Turning Heater off32
Manual Combustion System for Testing Purposes32
Power Failure Recovery System/Recover from Overheat Condition32
Routine Maintenance34
Inspect Intake/Exhaust Air Lines35
Verify Igniter Operation36
Clean Fuel Inlet Strainer36
Replacement of Fuses37
Fuel Contamination37
Servicing38
Cleaning the Heat Chamber and Burner38
Warning for Burner Mat Adhesive38
Removal of Water Deposits and Contaminants from Fuel Sump and Fuel Lines39
Measurement of Fuel Flow Rate39
Fuel Flow Rate Table: Requirements to the Fuel Flow40
Fuel Flow Rate40
Cleaning Blower Motor41
Cleaning the Fuel Filter or Water Block Filter41
Error Message42
Trouble Shooting43
Electrical System Diagram43
Laser 56/73 Resistance Values Table44
Laser 56/73 Component Voltage Readings44
Schematic Wiring Diagram45
Resistor Value Table46
Capacitor Value Table46
Control Circuit Board Time Chart47
Trouble Shooting Guide49
General Checks49
Parts Description: Laser Clean Vented Laser 56 (Type E, F, G)54
Parts Description: Laser Clean Vented Laser 73 (Type H, I, J)56

Toyostove Laser 56 E - 1-19 Fusible Link Valve; 1-20 Fuel Sump; 1-21 Fuel Pump; 1-22 Electrical System

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