A.O. Smith ATO-310-P Technical Documents
‐Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
‐WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electric switch, do not
use any phone in your building.
Immediately call your gas supplier from a
neighbor's phone. Follow the gas
supplier's instructions.
If you cannot reach your gas supplier, call
the fire department.
‐Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
FEATURING
ENDLESS HOT WATER
ON DEMAND USAGE
COMPACT, SPACE SAVING
ENERGY CONSERVATION
COMPUTERIZED SAFETY
NO PILOT LIGHT
EASY‐LINK SYSTEM
510 (T‐D2) models only
Gas Tankless Water Heater
Suitable for potable water heating and space‐heating *
*Please refer to local codes for space‐heating compliance.
If you have any questions, please
call or write to:
500 Tennessee Waltz Parkway
Ashland City, TN 37015
Toll Free: 1‐ 877‐737‐2840
On‐Demand Water Heater
Installation Manual and Owner’s Guide
Models
・110 Indoor (T‐KJr2‐IN) ・110 Outdoor (T‐KJr2‐OS)
・310 Indoor (T‐K4‐IN) ・310 Outdoor (T‐K4‐OS)
・510 Indoor (T‐D2‐IN) ・510 Outdoor (T‐D2‐OS)
WARNING
If the information in these
instructions is not followed
exactly, a fire or explosion
may result causing
property damage, personal injury or death.
ANSI Z21.10.3 and CSA 4.3
510 (T‐D2) models
only
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