STA-RITE SR200NA Service Manual page 52

SECTION FOUR – Routine Maintenance and Professional Servicing
Flameholder/Burner
Flameholder Kit
SR200 Series: P/N 77707-0202
SR333 Series: P/N 77707-0203
SR400 Series: P/N 77707-0204
L L L L o o o o c c c c a a a a t t t t i i i i o o o o n n n n
The Flameholder/Burner is located in the center of the
Combustion Chamber.
F F F F u u u u n n n n c c c c t t t t i i i i o o o o n n n n
The Flameholder/Burner supports the flame in the
Combustion Chamber and is a perforated sheet-metal
screen containing many small holes for efficient com-
bustion and even heat distribution. The Flameholder
Insert helps stabilize the flame over the length of the
Flameholder (Series SR/SRC333 and SR/SRC400 only).
S S S S e e e e r r r r v v v v i i i i c c c c i i i i n n n n g g g g P P P P r r r r o o o o c c c c e e e e d d d d u u u u r r r r e e e e
The Flameholder should be inspected periodically to
make sure there is no plugging or deterioration. Note
the following:
1. Improper burner operation, such as an incorrect
air/gas ratio, can cause the flame to lift, to be noisy,
or to overheat the Flameholder.
2. The Flameholder will not plug up in normal opera-
tion; however, extremely dusty or lint-laden air
should be avoided.
Flameholder
Flameholder
2667 1096
3. The Flameholder has a slightly oxidized appearance
in normal operation. However, extensive flaking or
distortion of the Flameholder caused by overheat-
ing is not normal.
R R R R e e e e p p p p l l l l a a a a c c c c i i i i n n n n g g g g t t t t h h h h e e e e F F F F l l l l a a a a m m m m e e e e h h h h o o o o l l l l d d d d e e e e r r r r
1. Turn off the filter pump and all electrical power to
the heater.
2. Remove the Combustion Air Blower. (See Replacing
the Combustion Air Blower.) It is not necessary,
however, to remove the blower at its outlet flange.
The Blower can be removed at the Blower Adapter
Plate. See the exploded view of the Burner System,
Page 5-2.
3. Carefully lift the Flameholder with a gentle twisting
motion. Be careful not to rub it against the
Combustion Chamber insulation.
4. Replace the Flameholder by reversing Steps 1
through 4 above. See NOTE below.
N N N N O O O O T T T T E E E E : : : : When you replace the Flameholder, also replace
the Flameholder/Combustion Chamber Gasket and the
Adapter Plate/Flameholder Gasket. Tighten the nuts
onto the studs in a criss-cross alternating sequence to a
torque of 70-80 in-lb. Do not overtighten.
4-20
Flameholder
Insert