How To Change Burner Orifice Size; How To Adjust Gas Valve Governor/Regulator - ALLIANCE BA120E Installation Manual

Gas Requirements

How to Change Burner Orifice Size

1. Disconnect electrical power from tumble dryer. Close gas
shut-off valve to tumble dryer. Refer to Figure 12 .
When converting the tumble dryer to a different
gas or pressure, first verify that the supply inlet
pressure is equipped with a pressure regulator
(located ahead of the tumble dryer) that will main-
tain the gas supply at the inlet pressure specified.
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1. Gas Shut-Off Valve (Ahead of pressure tap) (Shown in
open position) (Not Supplied)
2. Pressure Tap
3. Gas Shut-Off Valve (Shown in closed position) (Not
Supplied)
4. Specified Local Inlet Pressure
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W430R1
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TMB2328N_SVG
Figure 12
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NOTE: For IEC gas valves, attach manometer to
end of orifice holder. For AGA and CSA gas
valves, attach manometer to the outlet pressure
port on the gas valve.
1. Manometer
2. Pressure Tap
3. Burner Tube Attaching Screws
4. Gas Valve Flange
5. Gas Valve
6. Specified Pressure
2. Remove gas valve:
a. Remove the burner orifice(s) from the spud holder.
b. When converting from Natural Gas to L.P. Gas, the left-
most burner and orifice (viewed from front) must be re-
moved.
c. In place of the removed orifice, a blank orifice (Part No.
M400995) and a Burner Opening Cover (Part No.
M413099) must be installed.
3. Install the new, correct burner orifice(s). Refer to Figure 14 .
Torque each to 9 – 10 Nm.
4. Reinstall spud holder assembly to gas valve, making certain
burner orifice(s) are in line with burner tube opening. Refer to
Figure 14 .
5. Commission tumble dryer for use.
NOTE: Blank burner orifices are Part No. M400995.

How to Adjust Gas Valve Governor/Regulator

1. Check gas burner orifice (manifold) pressure as follows. Re-
fer to Figure 13 .
2. Remove screw plug from pressure tap.
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TMB2579N_SVG
Figure 13
Part No. 70532501ENR7
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