SECTION 5: F
UEL
C
ONVERSION
I
NSTRUCTIONS
7
Step 5.3 Burner Cup Assembly Removal
and Reassembly
1. Remove the electrode: Remove the electrode
with a 1/4" nutdriver or phillips (+) screwdriver.
2. Remove the air side door. Remove the three
thumb screws and set the door aside.
See Page
6, Figure 4
.
3. Remove the burner cup. Unscrew the burner
cup and set aside.
See Page 6, Figure 5
.
4. Remove and replace the gas orifice. Use a 1/2"
open end wrench (spanner) to remove the
orifice. Apply a small amount of pipe sealant to
the threads of the replacement orifice. Be aware
that over application of sealant may cause
blockage of the orifice. Insert and tighten the
replacement orifice.
CAUTION: Do not over-tighten the orifice. The
torque value for the orifice is 15 in/lbs; contact
your factory representative for more details.
5. Be sure gas supply to heater is off.
6. Replace the burner cup. Insure the large
external tooth washer is in place then tighten
the burner cup.
7. Replace the air side door.
8. Replace the electrode.
Step 5.4 Regulator Spring Replacement
See Figure 6
.
1. Replace the regulator spring. Using a flat head
screwdriver, remove the cap from the regulator
adjusting screw, remove the screw and remove
and replace the spring.
2. NOTE: Silver spring for Natural, red spring for
Propane.
3.
See Page 3, Section 3
and Page 4, Section 4
to verify spring kit components.
4. Replace the adjusting screw and turn down
approximately 1/2".
FIGURE 6: Pressure Regulator
5. If the burner is removed, re-install the gasket
and the burner on the transition tube by
inserting lockwashers and bolts, torque to 120
in/lbs. Reconnect outside air, gas and
electrical supplies. For proper installation
procedures, see Venting, Gas Piping and
Electrical Sections of the VANTAGE
®
NP
Installation, Operation and Service Manual
(P/N 152101NA) included in this Conversion
Kit.
Cap
Screw
(black)
O
Ring
(black)
Pressure
Regulator
Adjusting
Screw
(white)
Spring (Sil
v
er
f
or
Natural
G
as)
(Red
f
or
Propane
G
as)
Pressure
Regulator
Housing