5-3
Chapter 5. MAINTENANCE AND INSPECTION
Fault inspection flowchart
WARNING
Before wiring, mounting, or removing this device, be sure to turn the power off. Wiring with the
power on can result in an electric shock.
When there is a problem with the equipment, follow the following inspection
procedure:
Turn the start switch OFF,
and press the reset switch
to reset the operation
Does the POWER LED
light up?
Does the
FLAME LED of this
device go out?
Does the
START LED light up?
• Check the power switch and
fuse for the panel
• Check the wiring
Is the power
supply within the allowable
voltage range?
The START LED
momentarily lights up, the
ALARM LED lights up,
and the system
is locked out
Supply power within the
allowable voltage range
Does the FLAME LED
go out?
• Check the burner (False ame)
• Check the ame detector
• Check the wiring of the device
• Replace the device
Does the
pilot burner ignite?
Is there voltage
between terminal 14 and
each of terminals 19,
21 and 22?
Is the ame voltage
more than 1.5 V?
Does
FSP300BC100 signal
make FLAME LED
light up?
Is there voltage
between terminals 20
and 14?
Does the
FLAME LED of this
device light up?
Does the ame go out?
Is there an alarm?
Does the main burner
ignite?
Normal operation
Turn on the start contact
Disconnect the wiring to the
ame detector
• Check the voltage and wiring
of the start input terminal
(terminal 16) of this device
• Check the start contacts
• Check for leakage from the
main valve
• Check the burner
• Check the pilot, ignition transfor-
mer, and wiring
• Ignition spark response test
• Check the burner
• Check the main valve
• Check the burner, and
wiring
• Check the burner
• Check the ame detector
• Check the alarm
• Replace the device
Close the manual valve
of the main burner
Y
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
*
N
N
Interlock input is OFF.
Check the interlock
Replace the device
Replace the device
Replace the device
*
To Next Page
Loading...
