11
EXHAUST AND INLET AIR PIPING (CONT.)
CONCENTRIC VENT TERMINATION
Refer to Figures 6, 7, and 8 and install the vent terminal according to
the following instructions:
1. Determine the location for the concentric vent termination (See
"Vent Termination Locations"). Cut a 5 inch diameter hole through
the wall at the chosen location. Install the Vent Terminal Plate
Assembly and secure with 4 screws.
WARNING
ALWAYS DETERMINE THE LOCATION OF ELECTRICAL
WIRING, PIPES OR SUPPORTING STRUCTURES IN WALLS BE-
FORE CUTTING. FAILURE TO FOLLOW THIS WARNING MAY
RESULT IN PROPERTY DAMAGE, ELECTRICAL SHOCK, OR
WALL COLLAPSE CAUSING PERSONAL INJURY OR DEATH.
2. Cut a 4 foot length of the 2 inch vent outlet pipe. Use only 2" ABS
or PVC plastic pipe. Using a soap and water solution as a
lubricant, push the 2 inch pipe through the rubber Compression
Ring in the tee assembly until it extends approximately 12 inches
from the 4 inch pipe.
3. Apply cement to the 4 inch pipe end and the inside of the plastic
flange on the plate assembly. Push the 2 inch pipe through the
hole in the plate screen and push the 4 inch pipe into the flange.
Locate the 2 inch pipe so that it extends 10 inches from the plate.
See Figure 7.
4. Secure the assembly with locally approved supports or hangers.
Seal the wall penetration with caulking material.
5. Connect the air inlet and vent outlet piping to the concentric vent
assembly per Figure 8. Install a drain tee assembly and trap as
close to the water heater as possible. This is to drain any water
that may be in the combustion air pipe and prevent it from
entering the inducer blower.
Connect the trap drain line to a
suitable drain or to the
downstream of the condensate
trap of the water heater. Do not
terminate the trap drain line
into the condensate drain
vent.
SEE PAGE 30 FOR ALTERNATE
AIR INLET DRAIN TEE ASSEMBLY
CONFIGURATION.
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