6
Commercial Hybrid System
Determine Installation Location
You must ensure that clearances will be met and that the
vent length will be within required limits. Consider the
installation environment, water quality, and need for
freeze protection. Requirements for the gas line, water
lines, electrical connection, and condensate disposal can
be found in their respective installation sections of this
manual.
Minimum Clearances
The minimum clearances from both combustibles
and non-combustibles construction is:
0 inches from the sides
0 inches from the back
12 inches from the top
6 inches from the front
0 inches from vent components and condensate drain
line.
*The clearance for servicing is 24 inches in front of
the water heater.
**The clearance for servicing the anode rods is
54 inches from the top of the water heater.
**12” Min
0” Min
0” Min
0”
Checklist to Determine Installation
Location
□
The water heater is not exposed to corrosive
compounds in the air.
□
The water heater location complies with the
clearances.
□
For indoor models, the planned venting will not
exceed the maximum length for the number of
elbows used.
□
The planned venting termination/air intake
location meets the clearances.
□
Indoor air is not being used for combustion unless
installed in common vent application.
□
The water supply does not contain chemicals or
exceed total hardness that will damage the heat
exchanger.
□
The installation must conform with local codes or,
in the absence of local codes, with the
National
Fuel Gas Code, ANSI Z223.1/NFPA 54
, or the
Natural Gas and Propane Installation Code, CSA
B149.1
.
□
Leave the entire manual taped to the water
heater, or give the entire manual directly to the
consumer.
*6” Min
Door
