Installation Instructions
6
WARNING
never use an open fLame to check for gas Leaks.
WARNING
to prevent the possibiLity of gas Leaks, the pipe joint
compound must be resistant to L.p. gas.
WARNING
instaLL the attention LabeL provided with the conversion
kit to the gas vaLve where it can be readiLy seen.
23. Using a soap and water solution, check for leaks around
the gas valve/manifold connection and the burner orices.
Repair any leaks before continuing.
24. NOTE: Any other gas-red equipment should be ON
before any adjustments are made.
After the furnace has been in operation for 15 minutes,
adjust the gas supply pressure (not manifold pressure) to
obtain a range between 11” and 13” W.C. If the gas inlet
pressure falls outside of this range, then make necessary
L.P. service regulator(s) adjustments; check piping size,
etc., and /or consult with local L.P. provider.
25. With the furnace operating in its low-re (W1) condition,
the manifold pressure should be 6” W.C.± 0.30”. If neces-
sary, this pressure can be adjusted using the low regulator
adjustment screw. Turn clockwise to increase pressure
and counterclockwise to decrease manifold pressure.
26. Readjust the room thermostat to obtain a second stage call
for heat (W2). The manifold pressure for the W2 condition
should be 10” ± 0.30” W.C. Adjustments to this pressure
can be made using the high regulator adjustment screw.
27. Using the room thermostat to cycle the unit, observe a
minimum of three (3) smooth ignition cycles.
28. Turn off gas and electrical supply to the furnace. Remove
the barbed manometer ttings from the 1/8” NPT holes in
the gas valve. Seal inlet and outlet plugs removed earlier
with pipe joint compound or pipe thread tape and reinstall.
29. Install the regulator cover screws provided with the con-
version kit.
30. IMPORTANT NOTE: Apply the conversion label (B14933-
151) provided with the conversion kit. This label must be
attached adjacent to the rating plate.
31. For hybrid models, control board switches may need to be
re-set to single stage operation depending on installers
preference of operation.
32. Reinstall the access panels.
33. Turn on the gas and electrical supply.
34. Reset all other appliances so they function normally.