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DISPLAY OF THE CONTROLLER
Theillustraonbelowshowsanexampleofthedisplayofthecontrollers.Theexactdisplaymaydierfromexamples.
Temperature above 125 °F (52 °C) can cause severe burns or death from scalding.
Children, disabled and the elderly are at high risk of being injured.
CAUTION
• Flow rate to activate the water heater: 0.5 gallon per minute at the default set
temperature (1.9 L/min).
• Flow rate to keep the water heater running: 0.4 gallon per minute (1.5 L/min)
• The controllers have an energy saving mode. Five minutes after the water heater
stops operating, the backlight of the controller turns off.
• The backlight of the controller will turn back on once the water heater begins
firing again.
• This water heater is an on-demand, tankless water heater designed to efficiently
supply endless hot water without reference to temperature settings.
1. Open a hot water tap. 2. Mix cold water with the hot to get
the correct temperature water.
3. Close the water taps.
GENERAL
"COLD"Button
"HOT"Button
Press the "HOT" button or the "COLD"
button to set the hot water temperature.
"ON/OFF"Button
Press this button to start
or stop operation.
STANDBYLED(Orange)
The indicator turns on when the
heater is ready for operation.
INUSELED(Green)
This lights during combustion.
When the STAND BY LED is ON, the
hot water set temperature will be
displayed.
DisplayforTemperature
NORMAL OPERATION
°F 100 105 110 115 120* 125 130 135 140
°C 38 40 43 45 50* 52 55 57 60
*Factory setting (Default)
TEMPERATURE TABLE OF THE CONTROLLER
"INFO"Button
Eachmethebuonispressed,
theoperaonmodeisselected
in the following sequence.
Inlet water
temperature
Outlet water
temperature
Water
ow
The controllers indicate the remote controller (9008172005/TM-RE40) and the
temperature controller attached to a surface of the 140 Indoor (T-H3M-DV) model.
NOTICE
Normal Operaon
Owner's Guide
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