Williams 1773511 用户手册
8
ressure at the correct value
Gas Conversions
Converting to another gas type must be performed by a qualified service technician. If the type of the gas supplied to the
dwelling is not the same type as your furnace (natural or LPG gas), it must be converted.
dwelling is not the same type as your furnace (natural or LPG gas), it must be converted.
It will be necessary to do the following:
1. Change nozzle.
a. Remove the screw indicated
to the right.
1. Change nozzle.
a. Remove the screw indicated
to the right.
2. Without removing anything else, remove the nozzle from the burner inserting the screwdriver as indicated by the arrow.
Nozzle
3. Change the nozzle, attach the screw indicated at point 1 and set the burner pressure as indicated in the table below:
Gas Type
Nozzle Part Number
Nozzle Diameter
Natural Gas
JGLL065
0.09 in.
LP Gas
JGLL067
0.05 in.
Minimum Inlet Line Gas
Pressure
Maximum
Minimum
Gas Type
Manifold Gas Pressure
Manifold Gas Pressure
Natural Gas
7.0-inches w.c.
3.2-inches w.c.
1.8-inches w.c.
LP Gas
11.0-inches w.c.
10.6-inches w.c.
6.5-inches w.c.
4. Check the gas pressure and settings.
Minimum Burner Pressure Setting:
1. Set LOW burner capacity by pressing button Z2
2. Connect a micro manometer to the test gauge B (Figure 8)
3. Rotate the internal screw “D” (Figure 8) and set the pressure at the correct value
1. Set LOW burner capacity by pressing button Z2
2. Connect a micro manometer to the test gauge B (Figure 8)
3. Rotate the internal screw “D” (Figure 8) and set the pressure at the correct value
Maximum Burner Pressure Setting:
1. Set HI burner capacity by pressing button Z2
2. Connect a micro manometer to the test gauge B (Figure 8)
3. Rotate the external screw “C” (Figure 8) and set the p
1. Set HI burner capacity by pressing button Z2
2. Connect a micro manometer to the test gauge B (Figure 8)
3. Rotate the external screw “C” (Figure 8) and set the p