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UDV Series
Inner Door Gasket Replacement Procedure (cont.)
Step 10. Use RTV sealant (recommended bead size 1/8") to secure the inner door gasket to
the inner door sections (right & left). Refer to the illustrations on the next page for
proper application. Note the overlap configuration in the flange area of the inner
door. Set the flange section first, this will help to achieve the proper overlap position.
Installation of Inner Door with Gasket
Step 11. Clean any residual gasket residue or other debris
from combustion chamber surface before
installing the inner door/gasket assembly.
Step 12. Place the left side inner door and burner
assembly into position first. Using the (3) ¼" hex
drive screws from step 6, secure left side inner
door in place. DO NOT OVER TIGHTEN
SCREWS
Step 13. Position pilot tube and igniter/sensor
wire against left side inner door flange
gasket.
Step 14. Firmly place right side inner door flange
against the left side inner door flange
and secure with (2) ¼" hex drive screws
from step 5. DO NOT OVER TIGHTEN
SCREWS.
UDV SERVICE PROCEDURE VI
Inner Door Removal and Replacement
Stripped fastener connections
may allow for seal breach of
inner door. A seal breach may
result in a fire or explosion
causing property damage,
personal injury or death. Do
not over tighten screws in
steps 12, 14 and 15.
WARNING
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