16
49-6000245 Rev. 2
WATER SUPPLY AND DRAINAGE
Refer to the illustration below for recommended installation. The HOT and COLD water connections are 3/4”
NPT (National Pipe Thread) and are clearly marked on all models. Use 3/4” female NPT fittings with sealant
suitable for potable water when connecting to the inlet/outlet ports. The installation of unions is recommended
on the HOT and COLD water
connections so that the water heater
may be easily disconnected for
service. Piping should be routed to
allow for anode rod inspection and
service.
NOTE
: Install a shut-off valve in the
cold water line near the water heater.
This will allow for easier service and
maintenance of the unit.
IMPORTANT: Do not apply heat
to the HOT or COLD water
connections. If sweat connections
are used, sweat tubing to adapter
before fitting the adapter to the
COLD water connections on the
water heater. Any heat applied
to the HOT or COLD water
connections will permanently
damage the internal plastic lining
in these ports.
Install a vacuum relief valve and/or
anti-siphon device when required by
local jurisdictions.
Installation Instructions
INST
ALLA
TION INSTRUCTIONS
Typical vertical piping
Typical horizontal piping
Hot Water
Outlet to
fixtures
Unions
Temperature and Pressure
Relief Valve
Manual Gas
Shut-off Valve
Shut-off valve
Thermal
Expansion
Tank
Drain Valve
Relief Valve discharge within 6”
of floor, no closer than 2 times
pipe diameter per local code.
Cold Water Supply
Vent Hood
Vent Pipe to
Chimney
Union
Combustion Air
Inlets
HOT AND COLD PIPE INSULATION
(if supplied with product)
For increased energy efficiency, some water
heaters have been supplied with two 24” sections
of pipe insulation. Install the insulation according
to the illustrations on the right, as best meets your
requirements.
Catch Pan
Vertical pitch
of at least
1/4” per foot
3” minimum
Sediment Trap
