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2 Prepare boiler
Model 501
1.Remove the top access cover from the unit (no tools required for removal).
2.Turn the adjustment screw on the gas valve clockwise until it stops. Then turn the adjustment screw counterclockwise four and three quarter (4 3/4) turns (see FIG.
3.Use a combustion analyzer to verify CO2 is within the range of 9.6 – 10.5%. If not, adjust the screw counterclockwise
incrementally to raise CO2 and clockwise to lower CO2 (FIG.
4.After adjustment is complete, attach the propane conversion label (in the conversion kit bag) next to the boiler rating plate. Attach the LP caution label (in the conversion kit bag) to the left side of the unit in the lower left corner.
5.Replace the top access cover.
WARNING After converting to LP, check combustion per the
of this manual. Failure to check and verify combustion could result in severe personal injury, death, or substantial property damage.
Figure 2-3 Gas Valve Adjustment - Model 501
ALLEN WRENCH
ADJUSTMENT SCREW
Models 601 - 801
1.Remove the top access cover from the unit (no tools required for removal).
2.Remove the cover on top of the gas valve (FIG.
3.Turn the adjustment screw on top of the gas valve clockwise one and three quarter (1 3/4) turns on the 601 Model, one and a half (1 1/2) turns on the 701 Model, and one turn on the 801 Model (see FIG.
4.Use a combustion analyzer to verify CO2 is within the range of 9.6 – 10.5%. If not, adjust the screw counterclockwise
incrementally to raise CO2 and clockwise to lower CO2 (FIG.
5.After adjustment is complete, attach the propane conversion label (in the conversion kit bag) next to the boiler rating plate. Attach the LP caution label (in the conversion kit bag) to the left side of the unit in the lower left corner.
6.Replace the gas valve cover along with the top access cover.
Installation & Operation Manual
WARNING | After converting to LP, check combustion |
per the | |
| 10 of this manual. Failure to check and |
| verify combustion could result in severe |
| personal injury, death, or substantial |
| property damage. |
Figure 2-4 Gas Valve Adjustment - Models 601 - 801
COVER
ALLEN WRENCH
ADJUSTMENT SCREW
Leveling the boiler
1.Set the boiler in place and check level.
a)Adjust legs if necessary to level boiler, see FIG.
Figure 2-5 Leveling Legs on the Boiler
SCREWDRIVER
SLOT
LOWER
RAISE
14