Installa on Instruc ons and
Use & Care Guide
Keep this manual with the heater for future reference whenever maintenance, adjustment or service is required.
Retain your original receipt as proof of purchase.
Read this manual and the labels on the water heater before you install,
operate, or service it. If you have di
ffi
culty following the direc ons, or
aren’t sure you can safely and properly do any of this work yourself:
•
Call our Technical Assistance Hotline which is listed on your warranty. We can
help you with installa on, opera ons, troubleshoo ng, or maintenance. Before
you call, write down the model and serial number from the water heater’s ra ng
plate.
• Incorrect
installa on, opera on, or service can damage the water heater, your
house and other property, and present risks including
fi
re, scalding, electric
shock, and explosion, causing serious injury or death.
Residen al Gas
Tankless Water Heater
Residen al On-Demand Gas Tankless Water Heater
(X3™ TECHNOLOGY available on some models)
Do not store or use gasoline or other
fl
ammable 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 electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instruc ons.
• If you cannot reach your gas supplier, call the
fi
re de-
partment.
Installa on and service must be performed by a quali
fi
ed
installer, service agency or the gas supplier.
WARNING: If the informa on in these instruc ons
is not followed exactly, a
fi
re or explosion may
result causing property damage, personal injury or
death.
MODEL:
THR-160, THR-180, THR-199
LOW LEAD
CONTENT
100374994_2000628591
December 2023
