Lochinvar Power-Fin Designer's Manual page 19

Designer's Guide / Power-fin Water Heater
CATEGORY I VENTING – "F9" OR "B9" FIRING CODE
VERTICAL VENT WITH COMBUSTION AIR FROM THE ROOFTOP
(DirectAire).
The flue outlet terminates on the rooftop. The combustion air is ducted to
the appliance from outdoors through the rooftop.
BULLET POINTS
Category I double wall "B" vent is required.
All vent material for this configuration including vent termination will be obtained locally.
The air is delivered to the appliance via a separate duct. The air intake material can be
PVC, CPVC or ABS, galvanized steel pipe, double wall "B" vent, etc
A field supplied barometric damper is optional on Power-fin 0502-1302-F9.
A field supplied barometric damper MUST be installed on Power-fin 1501-2001-B9.
Maximum distance - 50 equivalent feet of air intake.
The Category I Power-fin with a model number that features the F9 or B9 Firing Code will be
factory trimmed for Category I vent and air inlet connections in the following dimensions.
MODEL
PFN0502PM-F9
PFN0752PM-F9
PFN1002PM-F9
PFN1302PM-F9
PFN1501PM-B9
PFN1701PM-B9
PFN2001PM-B9
CAT I VENT CONNECTION
7"
9"
10"
12"
12"
14"
14"
19
LOCHINVAR CORPORATION
300 MADDOX SIMPSON PKWY
LEBANON, TN 37090
www.lochinvar.com
AIR INLET CONNECTION
5"
5"
6"
6"
6"
7"
8"