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AM Series Boiler & Water Heater User Manual
CHAPTER 7: INSTALLATION – NATURAL GAS
7.9.2 Gas Conversion Instructions
To change the gas type used by the unit, follow the instructions starting on the next page:
Gas Rating Conversion of Master Burner 1
You must convert Burner 1 (Master) first, and then convert each additional burner in the unit
afterward. Refer to Figure 7-6 to locate Burner 1 (Master) and then perform the following steps:
1.
Turn OFF power to the unit.
2.
Gain access to the Factory Menu as follows: press and hold, at the same time, both the
RESET and
Menu (parameters 3000).
3.
Using push buttons
4.
Press RESET button once to select displayed parameter. Parameter 3002 will begin to blink
in the display. Now the value can be changed using the
5.
Using Table 3-5, select the right parameter value for the unit you are converting to propane
gas or to natural gas.
Table 7-2: Natural Gas and Propane Gas Settings
6.
Press RESET button once to save the new value.
7.
Turn the power OFF to the unit.
8.
Close the manual gas shut off valve.
9.
Remove the covers from the unit.
Unscrew nut "H" as per Figure 7-2.
10.
Using a screwdriver, remove spring clip "A" (Figure 7-2);
11.
Remove the gas valve from its site "C" as per Figure 7-3 (note O-ring "L").
12.
Replace orifice "G" per Figure 7-4, for the correct one for type of gas used. Verify that the
13.
stamping on the orifice matches Table 7-2.
Reinstall the gas valve, taking care to properly position O-ring "L" per Figure 7-3 and to
14.
place the gasket between the gas valve and nut "H" in Figure 7-2.
15.
Open the manual gas shut off valve.
OMM-0100_E • GF-146 • 11/15/2019
buttons while turning ON unit power. Display will enter the Factory
and
select parameter 3002.
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
and
buttons.
Page 89 of 170
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