Lochinvar 400-801 operation manual Models 601, Leveling the boiler

2 Prepare boiler (continued)

Model 501

1.Remove the top access cover from the unit (Philips Head screwdriver 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. 2-5).

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. 2-5).

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 Start-up procedure in Section 10

of this manual. Failure to check and verify combustion could result in severe personal injury, death, or substantial property damage.

Figure 2-5Gas Valve Adjustment - Model 501

Outdoor Knight XL Installation & Operation Manual

￿ WARNING	After converting to LP, check combustion
	per the Start-up procedure in Section
	10 of this manual. Failure to check and
	verify combustion could result in severe
	personal injury, death, or substantial
	property damage.

Figure 2-6Gas Valve Adjustment - Models 601 - 801

COVER

ALLEN WRENCH

ADJUSTMENT SCREW

ALLEN WRENCH

ADJUSTMENT SCREW

Models 601 - 801

1.Remove the top access cover from the unit (Philips Head screwdriver required for removal).

2.Remove the cover on top of the gas valve (FIG. 2-6).

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. 2-6).

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. 2-6).

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.

Leveling the boiler

1.Set the boiler in place and check level.

a)Adjust legs if necessary to level boiler, see FIG. 2-7 below.

Figure 2-7Leveling Legs on the Boiler

SCREWDRIVER

SLOT

LOWER

RAISE

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