Outdoor Patio Heater
15
Operating Instructions and Owner’s Manual
Orifice Change
FUEL CONVERSION INSTRUCTIONS
Change orifice to convert
from NG to propane
FIGURE 23
FIGURE 24
1.
Remove the top cover and the side cover (from valve side). Refer
to Figure 17.
2.
Remove the gas connection from the gas valve.
3.
Remove the 3 screws securing the air flange and remove the gas
valve connector. Refer to Figure 18. To remove the screws use the
“10 key”.
4.
Once the valve assembly has been removed, replace the NG
nozzle with the propane nozzle using a “13 key”. See Figures 24
and 23. The nozzle is supplied by Heat Star. Verify the orifice drill
size in Table 1.
5.
Reassemble the unit by performing Steps 1-3 in reverse order.
6. Make the gas connection as indicated in the
GAS SUPPLY
INSTALLATION INSTRUCTIONS
section.
7.
At the first re-ignition with different gas, adjust the manifold
pressure to the pressure indicated in Table 1 and on the label
applied on the unit. See Figure 10 for valve adjustment.
8.
Replace the NG label with data of manifold pressure and orifice
drill size with the propane label (supplied with the unit).
WARNING: Before doing all the operations below, it is
necessary to close the manual main shut-off gas valve and to
remove plug from the socket.
