Installation Guide
Table Of Contents
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PLEASE NOTE: SH22 IS FOR OUTDOOR PERMANENT INSTALLATIONS ONLY AND SH22I IS FOR INDOOR PERMANENT INSTALLATIONS ONLY. THIS MANUAL
AND ALL ECCOTEMP CONTENT IS SUBJECT TO CHANGE WITHOUT NOTICE. PLEASE VISIT SUPPORT.ECCOTEMP.COM FOR MORE INFORMATION.
Support: Support.Eccotemp.com Shop Online: www.Eccotemp.com Phone: 866-356-1992
Use the Smart Power Button to power on and o your tankless water heater, and to quickly
check the status of your water heater. If there is an error it will also indicate what kind. Learn
more on page 48.
Turning on the Water Heater
1. Make sure the gas type you will use is same as the type on the data plate.
2. Turn on the main gas valve, plug in the power cord (be sure the socket is well grounded), and
press the Smart Button on the bottom center of the front cover. Set temperature to 120° F.
3. Turn on the faucet, and the fan will begin working. You will hear the ignition sound after a few
seconds. The burner will ignite, and hot water will come out. If the burner is not ignited
successfully, the ignition sound will last a few seconds. If the burner still fails to ignite, turn
o the faucet and wait for 10-20 seconds, and repeat the above procedures.
For rst use and/or if the water heater has not been used for a considerable period of time, the
repeat of the above procedures may be required, due to accumulated air inside the gas pipe.
Operating the Water Heater
Safety Precautions
If there is any diculty in understanding or following the Operating Instructions or the Care and
Cleaning section, it is recommended that a qualied person or serviceman perform the work.
• DO NOT store or use gasoline or other
ammable vapors and liquids, such as
adhesives or paint thinner, in vicinity of this
or any other appliance. If such ammables
must be used, open doors and windows for
ventilation, and all gas burning appliances
in the vicinity should be shut o including
their pilot lights, to avoid vapors lighting.
NOTICE: Flammable vapors can be
drawn by air currents from surrounding
areas to the water heater
• Turn o manual gas shut o valve if
water heater has been subjected to over
heating, re, ood, physical damage or if
the gas supply fails to shut o.
• DO NOT turn on water heater unless water
and gas supplies are fully opened.
• DO NOT turn on water heater if cold water
supply shut o valve is closed.
• DO NOT allow combustible materials such
as newspaper, rags or mops to accumulate
near water heater.
The Eccotemp Smart App gives you complete control over temperature, on/o settings,
timers, statistics and more. See pages 41 & 42 for more information.
Use the included wireless remote to adjust water temperature from anywhere in your home.
Learn more about the remote on page 40.
• DO NOT store or use gasoline or other
ammable vapors and liquids, such as
adhesives or paint thinner, in vicinity of this
or any other appliance. If such ammables
must be used, open doors and windows for
ventilation, and all gas burning appliances
in the vicinity should be shut o including
their pilot lights, to avoid vapors lighting.
NOTICE: Flammable vapors can be
drawn by air currents from surrounding
areas to the water heater