Specification Sheet

206
Typical Installation
NFPA96 requires a 10 foot minimum distance
between the exhaust fan and supply fan intake.
The intake extension (optional) provides this
clearance. Also required are hinged curb caps on
the exhaust fan and some areas require a vented
curb extension.
NFPA96 Alternate Installation
Where space limitations absolutely prevent a
10 foot separation from the air intake, a vertical
separation may be permitted with the exhaust
outlet being a minimum of 3 feet above any air
intake located within 10 feet horizontally.
Important: Always check with the authority having
jurisdiction to verify local codes and requirements.
Common Curb and Adaptor
The common curb and adaptor allows for mounting
both the exhaust fan and supply fans onto one
roof opening. Follow the chart below for sizing and
ordering common curbs and adaptors.
MODEL
STOCK NO.
8” HIGH
COMMON CURB
COMMON
CURB
L x W OD
STOCK NO.
CURB CAP
ADAPTOR
CURB CAP
ADAPTOR
X x Y OD
CURB CAP OPENING
TXB KSF
EXHAUST
FAN
OUTLET A Sq.
SUPPLY FAN
OUTLET
B Sq
8/10 9 2302.BC10X9 55-3/4 x 27-1/2 2302.BA10X9 56-3/4 x 29 14-3/4 23-3/4
12 9 2302.BC12X9 59-1/4 x 27-1/2 2302.BA12X9 60-3/4 x 29 22-1/4 23-3/4
15/16 10 2302.BC15X10 65 x 31-1/4 2302.BA15X10 66-1/2 x 32-3/4 22-1/4 27-3/4
15/16 12 2302.BC15X12 69 x 35-1/4 2302.BA15X12 70-1/4 x 36-3/4 22-1/4 31-3/4
15/16 15 2302.BC15X15 69 x 35-1/4 2302.BA15X15 70-1/4 x 36-3/4 22-1/4 31-3/4
18 12 2302.BC18X12/15 74-1/2 x 35-1/4 2302.BA18X12 76 x 36-3/4 27-3/4 31-3/4
18 15 2302.BC18X12/15 74-1/2 x 35-1/4 2302.BA18X15 76 x 36-3/4 27-3/4 31-3/4
20 12 2302.BC20X12 74-1/2 x 35-1/4 2302.BA20X12 76 x 36-3/4 27-3/4 31-3/4
20 15 2302.BC20X15 74-1/2 x 35-1/4 2302.BA20X15 76 x 36-3/4 27-3/4 31-3/4
24 15 2302.BC24X15 82-1/2 x 38-1/2 2302.BA24X15 84 x 40 33-3/4 31-3/4
24 18 2302.BC24X18 86-1/2 x 39-1/4 2302.BA24X18 88 x 40-3/4 33-3/4 35-3/4
30 18 2302.BC30X18 94-1/2 x 45-3/4 2302.BA30X18 96 x 47-1/4 40-3/4 35-3/4
30 20 2302.BC30X20 108-1/2 x 54-1/4 2302.BA30X20 110 x 55-3/4 40-3/4 50-1/4
36 20 2302.BC36X20 113-1/2 x 54-1/4 2302.BA36X20 115 x 55-3/4
40-3/4 50-1/4
NFPA96 INSTALLATION AND COMMON CURB ADAPTOR
Common Curb Adaptor
MODEL KSF
BELT DRIVE CENTRIFUGAL FILTERED SUPPLY FAN