Typical Installation - A.O. Smith Residential Power Vent Gas Water Heaters with Hot Surface Ignition Instruction Manual

Typical Installation

VENT TO
OUTDOORS
TEMPERED
MIXING VALVE
WATER OUTLET
7' power cord
(Factory supplied)
*Certain models do not have these connection assemblies shipped with the water heater. They (Part #9001262) are available
through the manufacturer. See "Repair Parts" section for ordering information.
This appliance has been design certified as complying with American National Standard/CSA Standard for water heaters and
is considered suitable for:
Water (Potable) Heating: All models are "considered suitable for water (potable) heating."
Water (Potable) Heating and Space Heating: Certain models are "considered suitable for water (potable) heating and space
heating." Refer to the model and rating plate of the water heater.
WARNING
When the system requires water at temperatures higher
than required for other uses, the hot water system may
require a means such as a mixing valve to be installed to
temper the water at certain points of use. Some people
are more likely to be permanently injured by hot water
than others; these include the elderly, children, the
infirm, or the physically/mentally handicapped. Before
immersing yourself or anyone else in hot water, be sure
to check the water temperature. WARNING: HOTTER
WATER INCREASES THE RISK OF SCALD INJURY. (Also
see "Temperature Regulation" section) Mixing valves
are available at plumbing supply or hardware stores.
Follow manufacturers instructions for installation of
these valves.
VACUUM RELIEF REQUIRED BY SOME CODES
(REFER TO LOCAL CODES)
HOT WATER
OUTLET
GAS
SUPPLY
COLD WATER INLET
Some models are equipped with
TEMPERATURE-
PRESSURE RELIEF
VALVE
DISCHARGE PIPE
(Do not cap or plug)
PROVIDE A 6" AIR GAP
BETWEEN THE END OF
THE DISCHARGE PIPE
AND DRAIN
This water heater shall not be connected to any heating
systems or component(s) previously used with a non-
potable water heating appliance.
If this water heater is also used for space heating applica-
tions, all piping and components connected to the water
heater shall be suitable for use with potable water.
Toxic chemicals such as used for treatment of boilers or
non-potable water heating appliances shall never be
introduced into a potable water space heating system.
NOTE: To protect against untimely corrosion of hot and cold
water fittings, it is strongly recommended that di-electric
unions or couplings be installed on this water heater when
connected to copper pipe.
6
circulating loop fittings.
*HOT (OUTLET) RECIRCULATING
LOOP CONNECTION CAN BE
INSTALLED WITHIN 360° RADIUS
DIRECTION
CHECK VALVE
MARKED WITH
DIRECTION OF
FLOW ARROW
*COLD (RETURN) RECIRCULAT-
ING LOOP CONNECTION MUST
BE INSTALLED ONLY IN THE
UPRIGHT POSITION
DIRECTION
OF FLOW
HEAT TRAP
WARNING
WARNING
OF FLOW