Lochinvar Power-Fin Designer's Manual page 13

Designer's Guide / Power-fin Water Heater
CATEGORY IV VENTING – "M9" FIRING CODE
VERTICAL VENT WITH COMBUSTION AIR FROM THE SIDEWALL
(DirectAire).
The flue outlet terminates on the rooftop. The combustion air is ducted to
the appliance from outdoors through the sidewall. 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 Air Intake Kit is the Sidewall Air Intake Cap.
Tip
THIS CONFIGURATION MAY BE INSTALLED AS CATEGORY II. SEE PAGE 17 FOR DETAILS.
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"
13
LOCHINVAR CORPORATION
300 MADDOX SIMPSON PKWY
LEBANON, TN 37090
www.lochinvar.com
SAK KIT NUMBER
SAK3003
SAK3003
SAK3004
SAK3004
SAK3004
SAK3005
SAK3006