Lochinvar Power-Fin Designer's Manual page 16

Designer's Guide / Power-fin Water Heater
CATEGORY IV VENTING – "M9" FIRING CODE
SIDEWALL VENT WITH COMBUSTION AIR FROM THE SIDEWALL.
The flue outlet terminates out the sidewall. The combustion air is ducted
to the appliance from outdoors through the sidewall. This is true Direct
Vent with the flue termination and the air inlet port in the same pressure
zone.
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 and air
intake caps which must be used.
MODEL
PFN0502PM-M9
PFN0752PM-M9
PFN1002PM-M9
PFN1302PM-M9
PFN1501PM-M9
PFN1701PM-M9
PFN2001PM-M9
The main components in the Horizontal Direct Vent Kit are the Sidewall Exhaust Cap and the
Sidewall Air Intake 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 and the sidewall air
intake 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
steel 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"
16
LOCHINVAR CORPORATION
300 MADDOX SIMPSON PKWY
LEBANON, TN 37090
www.lochinvar.com
HDK KIT NUMBER
HDK3052
HDK3053
HDK3049
HDK3054
HDK3049
HDK3050
HDK3051