Dunkirk DXL Series - Manual (Page 2)

2
NATURAL GAS TO LP CONVERSION INSTRUCTIONS
13. Remove cover screw from gas valve pressure regulator.
See Figure 3.
14. Remove adjustment screw by turning counterclockwise
. See Figure 4.
15. Remove stainless steel natural gas spring.
16. Insert Red LP gas spring.
17. Install new adjustment screw. Assure screw top is fl ush
with regulator top.
18. Turn pressure regulator adjustment screw clockwise
eleven (11) complete turns. (This is starting point
for manifold pressure.)
19. Install manometer to pressure tap on outlet side of gas
valve. See Figure 3.
NOTE: Gas inlet pressure should be between minimum
of 11” w.c. and maximum of 14” w.c.
20. Turn electric and gas supply ON.
DANGER
Fire Hazard. Do not use matches, candles, open
fl ames, or other methods providing ignition source.
Failure to comply will result in death or serious
injury.
!
21. Check for gas leaks around all gas connections using
commercially available soap solution specifi cally made
for leak detection.
22. While boiler is running adjust manifold pressure to 11”
water column by turning pressure regulator adjustment
screw. Check for CO
2
and CO levels to assure proper
operation.
23. Turn electric and gas supply OFF.
24. Remove manometer. Replace pressure tap cover screw
securely.
25. Install Black LP gas regulator adjustment cover screw
with o-ring. See Figure 4.
26. Mount conversion label on gas valve (found in spring
kit).
27. Turn electric and gas supply ON.
28. Cycle boiler to ensure proper operation and lighting.
29. Replace front panel.
NOTE: Complete following steps to provide proper
identifi cation for customer service or technical support
issues.
30. Copy serial number from old rating plate to new one.
31. Mount new rating plate adjacent to old one.
Figure 3 - Gas Valve
Figure 4 - Gas Valve Adjustment Screw
Assembly
TABLE 2 - Propane (LP) Orifi ces
Manufacturer Part Number
ECR PB00208
Honeywell 390686-36
TABLE 1 - Main Burner Orifi ces
Boiler Size Orifi ce
50, 100, 150, 200 47
125, 170 49
75 50
Parts for steps 16, 17, 25, and 26 are located in
Honeywell LP gas conversion kit HW#393691 (ECR #
1272030) for VR8204, and VR8304 gas valves.