16
5. After adjustment is complete, attach the propane
conversion label (in the conversion kit bag) next to
the water heater rating plate. Attach the Propane (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.
After converting to Propane (LP), check combustion per the
Start-up procedure on Page XX of this manual. Failure to
check and verify combustion could result in severe personal
injury, death, or substantial property damage.
Figure 8. Gas Valve Adjustment - Model 600-800
LEVELING THE WATER HEATER
1. Set the water heater in place and check level.
•
Adjust legs if necessary to level the water heater, see
Figure below.
Figure 9. Leveling Legs on the Water Heater
8. After installation is complete, attach the propane
conversion label (in the conversion kit bag) next to
the water heater rating plate. Attach the Propane (LP)
caution label (in the conversion kit bag) to the left side of
the unit in the lower left corner.
9. Replace the top and front access covers.
After converting to Propane (LP), check combustion per the
Start Up section on Page 50 of this manual. Failure to check and
verify combustion could result in severe personal injury, death, or
substantial property damage.
For XWH 400: Inspect the O-ring when the blower is
disassembled. The O-ring must be in good condition and must
be installed. Failure to comply will cause a gas leak, resulting in
severe personal injury or death.
Model 500:
1. Remove the top access covers 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 Figure below).
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 (see Figure below).
4. After adjustment is complete, attach the propane
conversion label (in the conversion kit bag) next to
the water heater rating plate. Attach the Propane (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 Propane (LP), check combustion per the Start
Up section of this manual. Failure to check and verify combustion
could result in severe personal injury, death, or substantial
property damage.
Figure 7. Gas Valve Adjustment - Model 500
Model 600 - 800:
1. Remove the top access covers from the unit (no tools
required for removal).
2. Remove the cover on top of the gas valve (see Figure 8).
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 Figure 8).
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 (see Figure 8).
