Dunkirk DXL Series - Manual

CONVERSION KIT INSTRUCTIONS
NATURAL DRAFT CAST IRON SERIES II
GAS FIRED BOILERS FOR FORCED HOT WATER
NATURAL GAS TO LP CONVERSION
MGB/OMGB/MCB/DXL SIZES THROUGH 200 MBTU
Kit #'s 550002663, 550002664, 550002665
P/N 240009725, Rev. C [10/2012]
WARNING
Conversion kit shall be installed by qualifi ed service
agency in accordance with manufacturer's instructions
and all applicable codes and requirements of authority
having jurisdiction. If information in these instructions
is not followed exactly, a fi re, explosion or production
of carbon monoxide may result causing personal injury
or loss of life. Qualifi ed service agency is responsible
for proper installation of this kit. Installation is not
proper and complete until operation of converted
appliance is checked as specifi ed in manufacturer's
instructions supplied with the kit.
!
Converting Boiler From Natural Gas To Propane (LP):
1. Follow instruction TO TURN OFF GAS TO APPLIANCE.
Verify electrical power is OFF.
2. Remove front panel.
3. Remove burner access door.
4. Remove main gas burner tubes. See Figure 1.
5. Remove main burner orifi ces. See Figure 1.
6. Install LP gas main burner orifi ces. Discard excess LP
orifi ces.
7. Use 7/16” wrench, disconnect pilot tube from pilot. See
Figure 2.
8. Remove pilot orifi ce.
9. Install LP gas pilot orifi ce.
10. Apply liquid sealing compound (provided) to threads of
pilot assembly fi tting.
11. Reattach pilot tube to pilot and securely tighten. See
Figure 2.
12. Replace main gas burner tubes.
Tools Required
• Flat Head Screwdriver
• 1/4” Nut Driver
• 7/16” Open Ended Wrench
• 3/16” Allen Wrench
• 18” Manometer (or dial manometer)
Pilot
Pilot Orifi ce
Pilot Tube
Figure 1 - Burners Assembly
Figure 2 - Pilot Assembly
TABLE 1 - Kit # 550002663 550002664 550002665
Model
50/100/
150/200
75 125/170
DESCRIPTION
PART #
(QTY)
PART #
(QTY)
PART #
(QTY)
Pilot Orifi ce - Spark PB00208 (1)
Orifi ce # 47 (4) # 50 (2) # 49 (4)
Label, "Nat to LP"
Conversion Plate
240004822 (1)
Liquid Sealing
Compound
140010 (1)
Spring Kit 1272030 (1)
Instructions 240009725 (1)