Lochinvar Power-Fin Designer's Manual page 11

Designer's Guide / Power-fin Water Heater
CATEGORY IV VENTING – "M9" FIRING CODE
VERTICAL VENT WITH COMBUSTION AIR FROM EQUIPMENT ROOM.
The flue outlet terminates on the rooftop. The combustion air is drawn
naturally from the equipment room.
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 connection in the following dimensions.
Tip
THIS CONFIGURATION MAY BE INSTALLED AS CATEGORY II. SEE PAGE 17 FOR DETAILS.
BULLET POINTS
MODEL
PFN0502PM-M9
PFN0752PM-M9
PFN1002PM-M9
PFN1302PM-M9
PFN1501PM-M9
PFN1701PM-M9
PFN2001PM-M9
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.
All vent material for this configuration including
vent termination will be obtained locally.
The air is delivered to the equipment room by
means defined in Chapter 1 of this designer's
guide.
Maximum distance – 50 equivalent feet of vent.
CAT IV VENT CONNECTION
11
LOCHINVAR CORPORATION
300 MADDOX SIMPSON PKWY
LEBANON, TN 37090
www.lochinvar.com
4"
5"
6"
8"
6"
7"
8"