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Concentric Vent Terminal Installation
PROCEDURE
Improper installation, adjustment, service, or
maintenance can cause property damage, personal
injury, or death. Consult a qualified installer, service
agency, or gas supplier for information or assistance.
This kit must be used only for terminating this water
heater. DO NOT use this termination kit for any other
appliance. Using this kit on other appliances and/or
water heaters can result in property damage, personal
injury, or death.
NOTICE:
Concentric vent kit requires that the joints be cemented.
PVC Intake/Combustion Air
"C"
"C"
PVC Vent/Exhaust
Installation:
1. Become familiar with concentric vent kit parts (see chart above).
2. Determine the best location for the termination kit.
3. Cut the recommended diameter hole for the nominal pipe size called out in the charts above – Dim. "D".
4. Partially assemble the vent kit by performing the following:
a. Cement concentric Y fitting to larger diameter pipe (see chart above).
b. Cement rain cap to smaller diameter pipe (see charts above).
Nominal PVC Dimensions
"A"
2" Vent Kit
33.5"
3" Vent Kit
39.5"
4" Vent Kit
53.75"
*Hole size for nominal 4" PVC would be 5" (12.7 cm)
"D"
"B"
"A"
CAUTION:
!
DO NOT operate this water heater with the rain cap
removed or recirculation of combustion products may
occur. Water may also collect inside larger
combustion-air pipe and flow to the burner assembly.
Failure to follow this warning could result in product
damage, improper operation, personal injury or death.
DO NOT use field-supplied couplings to extend pipes.
Airflow restriction will occur and the water heater
pressure switches may cause intermittent problems.
"B"
"C"
17.65"
2.68"
22.38"
3.83"
34.8"
4"
Kits for US
"E" Diameter Pipe
Concentric "Y"
Fitting
INSTALLATION
"D"
3.5"
4.5" *
6"
Rain Cap
"D" Diameter Pipe
27
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