Burnham MEGASTEAM MST288 - Manual (Page 14)

14
E. FLUEwAY BAFFLE INSTALLATION.
Flueway baffles are enclosed into Part Carton. Baffle
requirements differ by boiler model, see Table 2.
TABLE : BAFFLE USAGE
Figure 5C: Top View - Burner Swing Door Fully Closed but Not Properly Secured or Sealed
NOTE: Read caution statement before proceeding.
CAUTION
These baffles will generate higher efficiencies
and lower stack temperatures. Under certain
conditions, a lower gross stack temperature
entering the chimney has the potential to
be cooled below the dew point and create
condensate on interior surfaces. Flue gas
condensate is corrosive, which requires
special consideration and must be addressed
immediately.
DO NOT install baffles until you have read
Section V, "Venting" completely.
1. To install flueway baffles, provided in miscellaneous
part cartons, as follows, refer to Figure 6 and
Table 2:
• Models MST396, MST513 and MST629 - To
install flueway baffle in 2 nd pass flueway on
left side of boiler, hold baffle with word "Left"
readable at the top. Slide baffle in flueway until
position tab touches fins on right side of 2 nd pass
flueway. To install flueway baffle in 2 nd pass
flueway on right side of boiler, hold baffle with
word "Right" readable at the top. Slide baffle
in flueway until position tab touches fins on left
side of 2 nd pass flueway.
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.
Boiler
Model
Baffle Usage
2 nd Pass 3 rd Pass
MST288 None
MST396
(2)
P/N 100042-01
None MST513
MST629