L.B. White I-34 Infraconic Pilot Ignition - Manual (Page 23)

Problem 3
Pilot Does Not Relight After Main Burner Shuts Down
Is Pr
oper Gas
Pressure Supplied
to
the heat
er?
Check Gas Pressure t
o
the
Heat
er Inlet with a Gas
Gauge. Pr
oper Pressure at
High Fire - 5 PSIG.
Pilo
t Pressure - 20 in. W
.C.
Ye
s
No
Pilo
t R
elight V
alv
e
A
djustment is R
e
q
uired.
See A
djusting Instructions
in Owner’s Manual.
23
Has Heat
er
Been Cleaned?
Clean Heat
er A
ccor
ding
to
Prescribed Methods
in Owner’s Manual. Pa
y
Par
ticular A
tt
ention t
o
V
enturi Inlet, V
enturi
Tube, and Inner and
Out
er Combustion
Cones.
Ye
s
No
Is Pilo
t Orif
ice
Clean?
Clean the Orif
ice By
Utilizing the Clean-Out
F
eature of the Pilo
t
Clean-Out De
vice or
R
emo
v
e
Pilo
t Orif
ice and
Clean as R
e
q
uired.
Ye
s
No
Is Pilo
t Line
Clean?
R
emo
v
e
and
Clean with
Com
pressed Air
.
Ye
s
No
Problem 4 Outer Combustion Cone Does Not Heat
Is Pr
oper
Gas Pressure Being
Supplied t
o
the
Heat
er?
Check f
or Pr
oper Gas Pressure
to
the Heat
er with a Gas
Gauge. Pr
oper Pressure at
High Fire - 5 PSIG.
Pilo
t Pressure - 20 in. W
.C.
Ye
s
No
Is Main Burner
Orif
ice Plugged?
R
emo
v
e
Orif
ice
and Clean It.
Ye
s
No
If Out
er Combustion Cone
still does no
t Light,
Pressure V
alv
e Ma
y Need
A
djustment. R
e
fer t
o
Instructions in Owner’s
Manual.
Are There
Block
ages in
Gas Hose, Piping,
Tubing Assembly
, Inject
or
Body or V
enturi
Tube?
R
emo
v
e
the Com
ponent
and Clear the Block
age
Using Com
pressed Air
.
R
eplace the Com
ponent
if Necessar
y.
Ye
s
No