Forced Flue Venting System; Fuel Delivery System; Electrical System; Safety Mechanisms - Toyotomi Laser 300 Service Manual

L A S E R
Section 1
Model Laser 530
Model Laser 560
Model Laser 730
Circulation fan Overheat protector
Heat chamber
Draft pipe
Fuel nozzle
Burner ring
Fuel pipe
Flame sensor
Igniter
Burner
Burner mat Fuel pump Fuel sump Fuel strainer
H E A T I N G
The forced flue venting system channels air to and from the
heater. Outside air is drawn into the heater by the combustion
blower through the flue pipe and is blown into the burner. It
then combines with the vaporized fuel and ignites.
As the heated air passes through the heat exchanger, a
room air circulation fan blows air past the heat exchanger
and out again into the room from the front of the heater.
Exhaust vapors are vented out of the room through the
flue pipe.
Fuel moves by gravity from the external fuel storage or
the removable fuel tank (Laser 560).
Fuel must be maintained at the level corresponding to
the burn mode so that combustion can be conducted
efficiently.
The fuel pump controls the flow of fuel from the fuel
sump to the burner through a copper fuel pipe and a fuel
nozzle.
All electronic diagrams, such as the wiring diagram, the
circuit board, and, layout, can be found in Section 6 of
this Service Manual.
Several safety mechanisms have been built into the Laser
Heating System. These devices protect the user against
personal injury, protect the heater against damage,
shutting down the heater and displaying an error code on
the digital indicator if a malfunction occurs.
Heat exchanger
Exhaust fan
When an electric power failure occurs while the heater is
in operation, the heater will automatically re-start after
Exhaust gas Flue pipe
the power is restored.
Intake fan
Intake air
If the power is turned off during combustion/ operation,
then it is possible to continue operation by turning
Blower motor
the power button back on within 3 seconds.
Reset button
After 3 seconds the heater needs to go through it's
preheat
S Y S T E M S

1-25 Forced Flue Venting System

1-26 Fuel Delivery System

1-27 Electrical System

1-28 Safety Mechanisms

1-29 Power Failure Recovery
System
1-30 Operation Recovery
Description
5
S E R V I C E M A N U A L