13
EMP
Installation & Service Manual
109529-03 - 11/19
3. To close Burner Swing Door (see Figures 4A
and 4B):
Step 1.
From the fully open position, rotate
Burner Swing Door to the closed position.
Step 2.
If necessary, place your right hand
under the burner air tube to lift upward. Lift
the door up unto the built-in cast ramp/door
rest (protruding from the bottom of the front
section casting - see Figure 4A).
Step 3.
Use one hand to help hold door in
position by lifting up on rear burner housing
or applying pressure directly to the door
while re-installing the securing hardware
with your opposite hand.
Always install
right side latching hardware (3/8”-16 x
1-3/4” lg . tap bolt and flat washer) first,
then install left side hinge hardware
(3/8”-
16 x 1-3/4” lg . tap bolt and flat washer)
second .
Apply additional pressure while
hand tightening the hardware as far as
possible, then release the pressure.
NOTICE:
When securing burner swing door
make sure door is drawn-in equally on both sides.
Step 4.
Use a hand wrench to tighten door
hardware and
always start with the right
side cap screw first .
Use an alternating
tightening method from right side tap bolt to
left side tap bolt to tighten door equally until
sealed without applying excessive torque.
Never
tighten left side flange bolt first or
tighten either piece of hardware 100%
without using the alternating tightening
method described above.
Failure to follow the prescribed procedure
could cause thread damage to casting or
a leak in the door seal. If left side tap bolt
is tightened before right side tap bolt, right
side of door can not be drawn-in to provide
an air tight seal, as shown in Figure 4C.
Applying excessive torque will only cause
thread damage.
E .
INSPECT SWING DOOR INSULATION AND
ROPE GASKET .
1. Open burner swing door using procedure
previously outlined in Paragraph D of this
section.
2. Inspect fiberglass rope located on the swing
door. The rope must be evenly distributed
around the perimeter of the door groove and
cannot bunch or overhang. There must not be
a gap where the two ends of the rope meet.
Repair or replace if the rope is damaged or if
there is a gap between the ends.
3. Inspect burner swing door insulation for
damage and proper type.
Figure 4C: Top View - Burner Swing Door Fully Closed but Not Properly Secured or Sealed
2
Packaged Boiler Assembly - Trim
(continued)
