Paloma 7.4 Series Residential Indoor Gas - Manual (Page 16)

16
Installing the water heater.
Vertical Vent Installation
Once the vent terminal location has been
determined, make a hole through the roof
and interior ceiling to accommodate the
vent pipe. Complete the vent pipe
installation to the water heater's vent
connector fitting on the water heater vent
collar outlet. Support vertical or horizontal
runs as previously mentioned. If required,
use silicone sealant at the point the vent
connector joins the water heater. Install adequate flashing where the vent
pipe passes through the roof. Determine
the vent terminal height and install the
vent pipe accordingly. Refer to to
illustration below for proper vent terminal
height. Connect vent elbow onto vertical
pipe through roof. Connect short piece of
vent pipe (approximately 3" long) to
elbow, then insert 1/2" mesh metal screen
into terminal elbow and join it to the short
piece of vent pipe.
Chase Requires
6” Clearance
to Combustibles
Firestop
Firestop
Roof Jack
Adjustable
Roof Flashing
Vent
Adapter
3” Clearance
Support
Hanger
Boot Tee
To Drain. Dispose of
condensate in accordance
to local codes
Rain Cap
Storm
Collar
Support
Clamp
1/4” per foot downward slope
2’
Max
Chase Requires
6” Clearance
to Combustibles
Firestop
Firestop
Roof Jack
Adjustable
Roof Flashing
Vent
Adapter
3” Clearance
Support
Hanger
Condensate
Trap
To Drain. Dispose of
condensate in accordance
to local codes
Storm
Collar
Support
Clamp
1/4” per foot upward slope
2’
Max
Standard Vertical Vent Termination Vertical Vent Termination
with Rain Cap
Vertical Vent Termination Location
The location of the vent terminal depends on the following
minimum clearances and considerations (see illustration):
Minimum twelve (12) inches above roof.
Minimum twelve (12) inches above anticipated snow
level.
Maximum twenty-four (24) inches above roof level
without additional support for vent.
Four (4) feet from any gable, dormer or other roof
structure with building interior access (i.e., vent,
window, etc.).
Ten (10) feet from any forced air inlet to the building.
Any fresh or make-up air inlet such as a dryer or
furnace area is considered to be a forced air inlet.
Min. 12" Above Roof
Min. 12" Above
Anticipated
Snow Level.
Max. 24" Above Roof
(Without Additional
Support)
Vent Pipe
Through Roof
Elbow
Termination Elbow
w/ Protective Screen
Small (6” min) section of vent