Rheem RTGH-95XLP-2 Use And Care Manual page 43

Vertical Vent Installation
WARNING:
Improper vent installation can result in death, personal
injury, product damage, and/or poor performance.
NOTICE:
Only Rheem-approved AND ULC S636 approved termination
and parts must be used during installation.
Maintain the recommended air space clearance to
combustible materials and building insulation.
Hole
Through Roof
C L
C L
1
Cut a hole through the roof and interior ceiling to
accommodate the vent pipes.
2
Complete the vent pipe installation to the water
heater's vent connector fittings. Use cleaner-primer and
appropriate cement where the vent pipes join the water
heater.
3
Support vertical and horizontal runs as described on
page 35. Vertical supports are required every 4 ft. (1.2
m) along a vertical pipe route, after every transition to
vertical, and after every offset elbow.
INSTALLATION INSTRUCTIONS
Hole
Through Ceiling
NOTICE:
Free-standing vent pipe that penetrates a roof/ceiling
requires another means of support from a second location.
A, B
4
Determine the vent terminal height and install the
vent pipe accordingly. Refer to "Vertical Vent Terminal
Location" on page 44 for clearance requirements.
5
Install adequate flashing where the vent pipe passes
through the roof.
Air Intake Condensate Trap
For vertical terminations or where the air intake pipe
slopes down towards the water heater, it is required
to install a drain tee assembly. This is to prevent any
condensate or liquid water from entering the intake
of the water heater. Connect the trap drain line to
a suitable drain. DO NOT connect it directly to the
condensate drain line from the water heater.
1
One trap method: Glue a 3" by 4" adapter coupling to
each end of a 4" PVC pipe length. Drill a ½" hole in the
side of the larger diameter pipe. Tap and thread for a ½"
barbed fitting, install fitting. Install the collector with the
fitting facing down. DO NOT install in verticial position.
Connect a drain hose to the fitting and clamp, run hose
to a suitable drain.
43