Install Instructions

15
Figure 6: Flueway Bafe Positioning/Orientation
in Flueways
ueway on right side of boiler, hold bafe with
word "Right" readable at the top. Slide bafe
in ueway until position tab touches ns on left
side of 2
nd
pass ueway.
F. CLOSING / SECURING BURNER SWING
DOOR.
1. To close and secure Burner Swing Door:
a. From fully open position, rotate the door to the
closed position.
b. Lift door upward into the build-in cast ramp/door
rest (protruding from the bottom of the front
section casting – see Figure 5A).
c. Use one hand to apply pressure directly to the
door to hold it in closed position while re-
installing earlier removed door-latching hardware
(3/8”-16 x 1-3/4” tap bolt and 5/16” washer).
Prior to re-installation, apply a drop of supplied
Anti-seize (pouch provided in Part Carton) to
both tap bolts for rust protection and to facilitate
easy removal, if burner door is to be open for
inspection and service. ALWAYS INSTALL
RIGHT SIDE LATCHING HARDWARE FIRST,
THEN INSTALL EARLIER REMOVED LEFT
SIDE HINGE HARDWARE (3/8”-16 X 1-3/4”
TAP BOLT AND 5/16” WASHER) SECOND.
Apply additional pressure while hand tightening
the hardware as far as possible and then release
the pressure.
NOTICE
When securing burner swing door make sure door
is drawn-in equally on both sides.
d. Use a hand or socket wrench to tighten door
hardware. ALWAYS START WITH RIGHT
SIDE TAP BOLT 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 TAP BOLT
FIRST, OR, EITHER PIECE OF HARDWARE
100% WITHOUT USING THE ALTERNATING
METHOD DESCRIBED ABOVE. See Figure
5B.
e. Failure to follow the prescribed procedure could
cause thread damage to casting and /or leak at
the door seal. IF LEFT SIDE TAP BOLT IS
TIGHTENED BEFORE RIGHT SIDE TAP
BOLT, RIGHT SIDE OF THE DOOR CAN
NOT BE DRAWN-IN TO PROVIDE AN AIR-
TIGHT SEAL, as shown in Figure 5C. Applying
excessive torque will only cause thread damage.
G. JACKET REAR PANEL INSTALLATION.
1. Locate jacket rear panel (has factory attached 3”
berglass insulation) inside Jacket Carton. See
also “Repair Parts” Section, “Jacket Assembly”
illustration for part identication.
2. Locate and remove from Hardware Bag rear panel
mounting hardware – (2 pcs) 5/16”-18 x 3” lg. tap
studs, (2 pcs) 5/16”-18 plated acorn nuts, (2 pcs)
5/8” x 2-9/32” round spacers and (2 pcs) 5/16”-18 x
½” Phillips pan head machine screws.
3. Locate rear panel two lower attachment bosses on
rear section. See Figure 7 “Purpose of Tappings &
Bosses”.
4. Thread both 5/16”-18 x 3” lg. tap studs, with short
threaded end, into lower attachment bosses on rear
section.
5. Install both 5/8” x 2-9/32” round spacers over tap
studs.
6. Place rear jacket panel over rear section, so both
tap studs clear thru lower panel holes, rear section
cleanout openings clear thru matching panel cutouts
and brass sample port plug clears panel matching
hole.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued)