Spark Ignition Heaters; On/Off Switch; Ignition Control Module; Burner Orifice - L.B.White I-17 Manual Del Usuario E Instrucciones

40
I-17 / I-40 Manual and Spark Ignition

Spark Ignition Heaters

Service Instructions

On/Off Switch

1. Remove control box screws and cover.
2. Disconnect the electrical leads from the ON/OFF
switch.
3. Remove the rubber boot from the ON/OFF
switch. See Fig. 32. Remove the switch from the
control box.
FIG. 32
Boot
Ignition control
■ Handle the module at the edges of the board
■ Don't touch the module components, otherwise
damage may occur.
1. Remove control box screws and cover.
2. Disconnect all electrical leads from the ignition
control terminals.
3. Disconnect high voltage ignition cable.
4. Remove the four ignition control module mount-
ing screws. See Fig. 33.
FIG. 33
Screws (4)
Owner's Manual • I-17 / I-40
Ignition
Cable

Burner orifice

1. Remove valve grounding and air housing attach-
ment screw. See Fig. 34, model I-17 shown.
2. Remove air housing with gas control from venturi
tube.
3. Using a 6 mm hex nut driver, remove the orifice.
See Fig. 35.
4. Clean or replace the orifice. Reinstall orifice into
the air housing. Do not overtighten the orifice as
threads can be stripped.
FIG. 34
FIG. 35
■ Orifice sizes are stamped
(Example: 64 is 0.64
mm for I-17 LP orifice)
See table below.
Orifice sizes (mm)
Model Fuel Type
and Heat
Output
I-17 L. P. Gas
(17,100
Natural Gas
BTUH)
I-40 (40,000 L. P. Gas
BTUH)
Natural Gas
Screw
Air Housing
on the flat of orifice hex, in-
dicating size in millimeters.
Orifice
Size
64
79
94
1.2