Lochinvar Power-Fin Designer's Manual page 15

Designer's Guide / Power-fin Water Heater
CATEGORY IV VENTING – "M9" FIRING CODE
SIDEWALL VENT WITH COMBUSTION AIR FROM THE ROOFTOP
(DirectAire).
The flue outlet terminates out the sidewall. The combustion air is ducted
to the appliance from outdoors through the rooftop. This is not true Direct
Vent with the flue termination and the air inlet port in different pressure
zones.
The Category IV Power-fin with a model number that features the M9 (Modulating Fire) Firing
Code will be factory trimmed for Category IV vent and air inlet connections in the following
dimensions. The table also includes the kit part numbers for the sidewall exhaust caps which
must be used.
MODEL
PFN0502PM-M9
PFN0752PM-M9
PFN1002PM-M9
PFN1302PM-M9
PFN1501PM-M9
PFN1701PM-M9
PFN2001PM-M9
The main component in Sidewall Vent Kit is the Sidewall Exhaust Cap.
BULLET POINTS
CAT IV VENT CONNECTION
4"
5"
6"
8"
6"
7"
8"
Category IV vent material is required, such as
AL29-4C.
All vent joints and seams must be sealed gastight
and may not be common vented.
The vent must have a condensate drain with
provisions to properly collect and dispose of
any condensate that may occur in the vent pipe.
The sidewall exhaust cap must be provided by
Lochinvar. See table below for kit part numbers.
All other vent material for this configuration will be
obtained locally.
The air is delivered to the appliance via a separate
duct. The air intake material can be galvanized
pipe, PVC, CPVC or ABS and must be sealed
airtight.
Maximum distance - 50 equivalent feet of vent.
Maximum distance - 50 equivalent feet of air intake.
AIR INLET CONNECTION
5"
5"
6"
6"
6"
7"
8"
15
LOCHINVAR CORPORATION
300 MADDOX SIMPSON PKWY
LEBANON, TN 37090
www.lochinvar.com
SVK KIT NUMBER
SVK3069
SVK3070
SVK3018
SVK3068
SVK3018
SVK3019
SVK3068