AIC TEXAS 230, Installation And Maintenance Manual, Page: 72 / 92

I-72
H-093630_EN • 00
M
aintenance
Removing and Installing the Burner
Conditions:
î
Fan assembly / gas valve removed, refer to
“Removing and Installing the Fan, Venturi
and Gas Valve (TEXAS 99)” on page I-68. or
“Removing and Installing the Fan, Venturi and
Gas Valve Assembly (TEXAS 230)” on page
I-70
î
Electrodes removed, refer to “Removing and
Installing the Ignition and Ionisation Elec-
trodes” on page I-66
Tools and material:
î
Wrench, socket head size 13
î
Torque wrench, 3 to 6 Nm
î
Air compressor
î
Loctite thread sealant 5972
Removal Procedure:
TEXAS 99 :
1. Release four nuts (
1
) securing the fan plate
(
2
). Remove the fan plate (
2
) and its hard-
ware. Retain for reinstallation.
2. Remove the burner tube (
4
) with upper (
3
)
and lower gaskets (
5
) from the heat exchang-
er. Discard the gaskets.
TEXAS 230 :
1. Extract fan gasket (
6
), burner tube (
7
) and
lower gasket (
8
) from burner plate. Discard
both gaskets.
Cleaning and Checks:
1. Visually check the condition of the burner
tube.
2. Clean with compressed air to remove residues.
If it is in bad condition after cleaning, replace it.
3. Remove the burner plate. Refer to “Remov-
ing and Installing the Burner Plate” on
page I-74 .
OFF
Installation procedure:
TEXAS 99 :
1. Install burner tube (
4
) with new upper (
3
) and
lower gaskets (
5
).
2. Apply Loctite 5972 on studs and install four
retained nuts (
1
). Torque nuts in a crosswise
pattern at 3 Nm, then repeat in a crosswise
pattern at 6 Nm.
TEXAS 230 :
1. Insert burner tube (
7
) into heat exchanger
with new lower gasket (
8
) and fan gasket (
6
).
Follow-on tasks:
1. Reinstall the fan and air-gas mixer assembly,
refer to “Removing and Installing the Fan,
Venturi and Gas Valve (TEXAS 99)” on page
I-68 or “Removing and Installing the Fan,
Venturi and Gas Valve Assembly (TEXAS
230)” on page I-70.
2. Reinstall the electrodes, as required. Refer to
“Removing and Installing the Ignition and
Ionisation Electrodes” on page I-66.
3. Reinstall all removed access panels, refer to
“Opening and Closing the Front Door and
Access Panels” on page I-29.
4. Restart the appliance, see “Restarting after
Maintenance” on page I-62.