User Guide

37 Page
DISPLAY OF THE CONTROLLER
Theillustraonbelowshowsanexampleofthedisplayofthecontrollers.Theexactdisplaymaydierfromexamples.
• 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.
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
"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.
STANDBYLED(Orange)
The indicator turns on when the
heater is ready for operation.
INUSELED(Green)
The indicator lights during combustion.
When the STAND BY LED is ON, the
hot water set temperature will be
displayed.
DisplayforTemperature
"INFO"Button
Eachmethebuonispressed,
theoperaonmodeisselected
in the following sequence.
Inlet water
temperature
Outlet water
temperature
Water
ow
The controllers indicate the remote controller (9009069005/TM-RE42) and the
temperature controller attached to a surface of the 140 Indoor (T-H3M-DV) model.
NOTICE
Normal Operaon
Owner's Guide
GENERAL
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