Lochinvar 800 operation manual Leveling the boiler, Models 600

Installation & Operation Manual

2Prepare boiler

Model 500

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. 2-3).

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. 2-3).

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.

￿After converting to LP, check combustion WARNING 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 2-3Gas Valve Adjustment - Model 500

ALLEN WRENCH

￿After converting to LP, check combustion WARNING 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 2-4Gas Valve Adjustment - Models 600 - 800

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. 2-5 below.

ADJUSTMENT SCREW

Models 600 - 800

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. 2-4).

3.Turn the adjustment screw on top of the gas valve clockwise one and three quarter (1 3/4) turns on the 600 Model, one and a half (1 1/2) turns on the 700 Model, and one turn on the 800 Model (see FIG. 2-4).

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. 2-4).

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.

14

Figure 2-5Leveling Legs on the Boiler

SCREWDRIVER

SLOT

LOWER

RAISE