I-UDSA-UK (02-19) PN 06 00116 UDSA R3, page 18
This heater has a unique one-piece T-CORE
2®
burner assembly
designed to provide controlled flame stability without lifting or
flashback. The burner can be removed as a unit for inspection
or service : see below for removal instructions.
Inspect the burner/control compartment annually to determine
if cleaning is necessary. If there is an accumulation of dirt, dust,
and/or lint, clean the compartment and follow the instructions
below to remove and clean the burner.
Caution
:
use of eye protection is recommended.
Instructions for burner removal
1. Outside the cabinet, shut the gas supply off at the manual
valve ahead of the union
2. Turn off the electric supply.
3. Disconnect the gas supply at the union outside of the cabinet.
4. Open the access door.
Figure 12a :
Figure 12b :
15
BURNER MAINTENANCE
5. Disconnect the manifold and move it out of the way. At the
gas valve, mark and disconnect the connector. Carefully
remove the burner orifice and orifice adapter locking nut.
Slide the orifice adapter out through the bracket on the
burner pushing the manifold to the right. This will move
the manifold out of the way. See Figure 14 for component
definitions.
6. Remove burner
a) Locate the burner body front support. Remove the
screws that attach it to the secondary air shield. See
Figure 14 for component definitions.
b) Holding the venturi tube, slide the entire burner slightly
to the right to disengage the burner from the supports
on the left. Then rotate the open end of the venturi tube
outward away from the heater. Carefully pull the burner
assembly out of the cabinet.
Figure 13a :
Figure 13b :
Burner orifice
Locking nut
Orifice adapter
