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SECTION 2
EDR-PURE-IOM-230608
CAUTION:
ADEQUATE COMBUSTION AIR AND VENTILATION MUST BE SUPPLIED
TO THE BOILER ROOM IN ACCORDANCE WITH LOCAL CODES AND
NFPA54/ANSI Z233.1, SECTION 9.3, AIR FOR COMBUSTION AND
VENTILATION OR CSA-B149.1 FOR CANADA. THE MINIMUM NET FREE
AREA REQUIREMENTS IN TABLE 6 MAY NOT SUPERSEDE LOCAL AND
JURISDICTIONAL CODES AND REGULATIONS REQUIRING A GREATER
NET FREE AREA. THE MORE STRINGENT OF THE TWO SHALL PREVAIL.
Questions? Please Contact Your Local Manufacturer's Representative
FLUE GAS EXHAUST TERMINATION
(RAIN CAP NOT REQUIRED)
METAL PLATE
FIRE STOP
END
EN
D
U
U
R
R
A
A
H
H
Y
Y
D
D
RONIC
RONIC
BOILER
BOILER
LEVEL HOUSEKEEPING PAD
MIN 4 INCH (102 CM) HEIGHT
FIGURE 23 ROOF PENETRATION WITH COMBUSTION AIR LOUVERS DETAILS
STORM COLLAR
(FOR DOUBLE WALL)
TYPICAL ROOF PENETRATION
COMBUSTION AIR FROM THE ROOM
( SUGGESTED INSTALLATION CONFIGURATIONS )
NOTES:
1) HORIZONTAL SECTIONS MUST ADHERE TO A MINIMUM
1/4 INCH PER FOOT (1 MM PER 48 MM) RISE TO RUN RATIO
2) MAINTAIN A MINIMUM 9 INCH (229 MM) AIR SPACE
CLEARANCE TO COMBUSTABLES, WIRE, AND INSULATION
3) INSTALL SUPPORT STRAPS AT 5 FT (152 CM) HORIZONTAL
INTERVALS AND AT ELBOWS
STORM COLLAR
ADJUSTABLE
FLASHING
DO NOT PLACE INSULATION IN
REQUIRED AIR SPACE CLEARANCE
FLUE GAS EXHAUST
DIRECTION OF FLOW
UL-1738 APPROVED
EXHAUST VENT MATERIAL
APPLIANCE ADAPTER
CONSULT FLUE MFG FOR SELECTION
REFERENCE TABLE 1 FOR
FLUE GAS STACK DIAMETER
CONDENSATE TRAP
INSTALLATION
12 INCH (305 MM)
UPPER COMBUSTION AIR LOUVER
MINIMUM NET FREE AREA
1 IN
2
PER 4,000 BTU/HR
(645 MM
2
PER 1.17 KW)
LOWER COMBUSTION AIR LOUVER
MINIMUM NET FREE AREA
1 IN
2
PER 4,000 BTU/HR
(645 MM
2
PER 1.17 KW)
12 INCH (305 MM)
2-33
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