Bradford White URG2PV75H N Series Service Manual page 35

UPV75 Series
Inner Door Gasket Replacement Procedure
If the information in these instructions is not followed exactly, a
fire or explosion may result causing property damage, personal
injury or death.
Step 1. After inspection of inner door as noted in step 8, completely remove gasket and adhesive
residue from right and left side inner doors as needed.
Step 2. Use RTV sealant (recommended bead size 1/8") to secure the inner door gasket to the
inner door sections (right & left). Refer to illustration on 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 1. Clean any residual gasket residue or other debris from combustion chamber
before installing the inner door/gasket assembly.
Step 2. Place the burner door into position first. Tighten the feedline nut to the gas valve. Use
the ¼" hex drive screw without the built-in washer to secure the burner door to the
chamber at position #1 & #2. Use the ¼" hex drive screws with the built-in washer to
secure the door at positions #3 & #4 (see photo of left side inner door on page 34). DO
NOT OVER TIGHTEN SCREWS.
Step 3. Position thermopile wire, pilot tube and igniter wire against burner door flange gasket.
Step 4. Firmly place right side inner door flange against the burner door flange and secure with 2
¼" drive screws. DO NOT OVER TIGHTEN SCREWS.
Step 5. Align right side inner door to combustion chamber and verify the fastener holes of the
combustion chamber are aligned with the right side inner door slotted opening (see photo
30). Verify seal integrity around combustion opening. Secure right side inner door using
¼" hex drive screws. DO NOT OVER TIGHTEN SCREWS. Verify both burner and right
sides of the inner door are properly positioned and sealed against the combustion
chamber.
UPV75 SERVICE PROCEDURE XIII
Inner Door/Gasket Removal, Inspection &
WARNING
Replacement
surface
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