ALLIANCE CA050L Installation Operation & Maintenance page 33

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13
12
1 Gas Valve
2 Regulator Plate
3 Burner Orifice
4 Burner Tube Openings
5 Burner
6 Pressure Tap
7 Spud Holder
How to Change Burner Orifice Size
1. Disconnect electrical power from tumble dryer.
Close gas shut-off valve to tumble dryer. Refer to
Figure 15.
2. Remove spud holder. Unscrew spud holder nut
near gas valve. Remove the burner orifice(s)
from spud holder. Refer to Figure 16.
3. Install the new, correct burner orifice(s). Refer to
Figure 17 and Table 1. 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 17.
5. Commission tumble dryer for use.
NOTE: Blank burner orifices are Part No.
M400995.
70457901ENR7
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3
10
9
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4
6
7
8 Manifold Pipe
9 Anti-Torque Ring
10 Spud Holder Nut
11 Plate
12 Gasket
13 Regulator Cap
Figure 16
How to Adjust Gas Valve Governor/Regulator
1. Check gas burner orifice (manifold) pressure as
follows. Refer to Figure 16.
2. Remove screw plug from pressure tap.
3. Connect a "U"-tube manometer (or similar
pressure gauge) to the burner orifice (manifold)
pressure tap.
4. Start tumble dryer and note pressure once flame
is burning. Remove regulator cap and adjust
regulator screw until the burner orifice pressure
per applicable table is achieved. Replace
regulator cap. Refer to Figure 16.
5. Commission tumble dryer for use.
1
1 Size Stamped on Orifice
Installation
5
TMB2282N
BURNER
ORIFICE
TMB2015N
Figure 17
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