Справочник Пользователя для Crown Boiler AWI262
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32
Standing Pilot Ignition System Troubleshooting Chart
Pilot lit?
Main
burners
light?
Y
Turn control on
gas valve to
PILOT. Depress
red button and
light pilot. Hold
button for at
least one
minute.
gas valve to
PILOT. Depress
red button and
light pilot. Hold
button for at
least one
minute.
Does pilot
light?
N
*Pilot tubing
blocked, kinked
or leaking
blocked, kinked
or leaking
*Pilot orifice
blocked
blocked
*Gas line not
purged of air
purged of air
*Pilot improperly
adjusted.
adjusted.
Line pressure
within the range
indicated on
boiler's rating
plate?
Consult gas
supplier.
supplier.
Does pilot
stay lit?
*Defective thermocouple
*Pilot improperly
adjusted
adjusted
*Pilot tube blocked, kinked, or
leaking
leaking
*Pilot orifice partially plugged
Y
N
N
Y
N
Turn control
on gas valve
to ON.
on gas valve
to ON.
Y
END
*Defective gas
valve
valve
Y
START
(24 VOLTS PRESENT ACROSS TH AND TR
ON GAS VALVE, BUT MAIN BURNERS DO
NOT LIGHT)
Ensure knob
on gas valve is
set to ON
on gas valve is
set to ON
*Loose
thermocouple
connection at
gas valve.
thermocouple
connection at
gas valve.
*Defective
thermocouple.
thermocouple.
*Condensation
quenching pilot.
quenching pilot.
*Low line
pressure.
N
Y
N
Does pilot
stay lit when
red button is
released?
Disconnect
thermocouple from
gas valve. Connect a
volt meter to the
thermocouple. Light
the pilot and hold
down the red button
while reading the
voltage across the
thermocouple.
thermocouple from
gas valve. Connect a
volt meter to the
thermocouple. Light
the pilot and hold
down the red button
while reading the
voltage across the
thermocouple.
Is voltage at
least 18mV?
*Loose or defective
thermocouple
connection at gas valve
thermocouple
connection at gas valve
*Defective gas valve
Y
N
Caution: Read page 29 before
attempting to use this chart