Napoleon NBM030S2A Installation And Operating Instructions Manual page 31

FIGURE 15
THERE MUST NOT BE ANY OPENINGS BETWEEN THE BLOWER DIVISION PANEL AND
THE COMBUSTION COMPARTMENT. THE BLOWER COMPARTMENT IS UNDER GREATER
SUCTION THEN THE COMBUSTION COMPARTMENT AND CAN PULL COMBUSTION
AIR FROM THE BURNERS AND CAUSE INCOMPLETE COMBUSTION AND ERRATIC
FIGURE 16 - UPFLOW VENT AND DRAINING OPTION
LEFT VENT INSTALLATION
IMPORTANT:
• PRIME CONDENSATE TRAP WITH WATER AND CUT DRAIN HOSES TO PROPER LENGTH.
• CUT PRESSURE SWITCH TUBING TO PROPER LENGTH, IF REQUIRED.
WARNING
!
FURNACE OPERATION.
NOTE
Trap can be installed on the left or right side of the unit.
Only left side install pictured.
IMPORTANT:
CONNECT ½" TEE FITTING (FIELD SUPPLIED)
TO THE OUTLET OF THE CONDENSATE TRAP.
!
TOP VENT INSTALLATION
31
H3.16
W415-1117 / A / 03.11.14
IOM