Bradford White U-100T-88R-3N - Manual (Page 7)

Page 7
Step 5. Fully inspect burner door and right side inner door gaskets for the following:
>Tears >Other imperfections that will inhibit proper seal
>Missing Material >Gasket adhesion to inner door
>Cracks >Material left on combustion chamber (around opening)
>Dirt or debris
If the gasket is not effected by any of the above, gasket replacement is not required. If replacement is
required, proceed to Inner Door Gasket Replacement Procedure.
Inner Door Removal Procedure
Step 1.
Rotate the gas control knob to the “OFF”
position.
Step 2. Remove outer jacket burner access door.
Step 3. Remove wire clip from main burner feedline.
Step 4. Inner Door Removal.
a) Disconnect red thermopile lead and red gas control lead from
resettable thermal switch. Disconnect white thermopile lead
from the gas valve (see photos 1 and 2).
b) Disconnect main burner feed line (¾” wrench), pilot tube
(7/16" wrench) and igniter wire from gas control (see photo 2).
c) Remove (2) ¼” hex drive screws from right side inner door
(see photo 3).
d) Remove (2) ¼” hex drive screws from flange section of
inner door (see photo 3).
e) Remove (3) 1/4" hex drive screws from burner door
(see photos 4&5). The burner door and burner are
one-piece.
f) Remove burner and inner door and inspect per step 5.
ECO-MAGNUM
75/100-Gallon Atmospheric
SERVICE PROCEDURE I
Burner and Inner Door/Gasket Removal,
Inspection, Replacement and
Reinstallation
Gas Control Knob Shown In
“OFF” Position
1
2
3
4
5
Red Thermopile Lead
Red Gas
Control Lead
White Thermopile
Lead
Main Burner
Feedline
Pilot Tube
Igniter Wire
Right Side
Hex Drive
Screws
Flange Hex
Drive
Screws
Burner Door
Hex Drive
Screws
Position #1
Position #2
Position #3
7