AHRI (-)98VA060M317USA, Installation Instructions Manual

Page: 49 / 108

NOTE: 1.10 mm orifices provided in kit are used in all alti-
tudes. These orifices comply with the 2% de-rate require-
ments due to the natural de-rate related to lower barometric
pressure.
NOTE : Use a pipe compound resistant to the action of the liq-
uefied petroleum gases at all threaded pipe connections.
7. Reinstall the manifold assembly by reversing the re-
moval process.
8. Plug the wires into the gas valve.
9. Install the tapped gas nipple supplied with the kit into
the inlet of the gas valve. Be sure to apply pipe dope or
Teflon tape. After tightening the gas nipple, the tapped
hole in the nipple should be in the horizontal position.
See Figure 35 .
10. Install the Inlet Pressure Switch into the tapped hole. Be
sure to apply pipe dope or Teflon tape. After tightening,
the terminals on the Inlet Pressure Switch should be fac-
ing down towards the blower shelf. See Figure 36.
11. Remove the connection in the white wire going to the
gas valve. Plug the ¼” female terminal from the gas
valve onto the terminal on the Inlet Pressure Switch.
Using the supplied jumper wire, connect the remaining
¼” male terminal on the white wire to the Inlet Pressure
Switch. See Figure 37.
12. Reconnect the supply gas line to the furnace.
13. Turn on gas supply and electrical supply.
14. Check unit thoroughly for gas leaks – with soap and water
– not with a flame.
15. Follow lighting instructions to put furnace into operation.
16. Operate thermostat to check unit operation for ignition and
extinction characteristics.
17. Manifold gas pressure must be adjusted to 10
(
W.C.
after valve conversion to LP gas with furnace in op-
eration and proper gas supply pressure (see rating
plate). The gas supply line pressure should be be-
tween 11
(
and 14
(
W.C. at the appliance.
18. NOTE: The igniter wire must not be routed any closer than
1” from the gas valve. Otherwise, noise from the spark ig-
niter wire could reset the valve during ignition trial resulting
in loss of heat.
COMPLETING CONVERSION
1. Using a ballpoint indelible pen, record the following infor-
mation on label 92-18153-05 provided in this kit.
a. Date of conversion.
b. Installer’s name, address and telephone number.
c. Burner orifice size.
2. Place completed conversion label next to the rating plate.
3. Install the burner compartment access door.
LP CONVERSION
49
LP
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FIGURE 36
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FIGURE 37
FIGURE 38
TyPICAL LP kIT CONTENTS