1How to Use (Using the optional remote controller)Setting and Using the Water HeaterPress the Power On/Off Button.The temperature will bedisplayed on the remotecontrol thermostat.Set temperature.(Always check the temperaturesetting before use. )Turn on hot water.Turn off the hotwater.HotColdOnPrevious set temperature(Ex.: 110°F)On( °F: )The temperature settings below are examples. The temperature settingnecessary depends on the usage, the length of piping and the time of year.*Initial factory setting is 110°FIf fixtures incorporate mixing valves, set the temperature higher than usual.* For most residential applications, the recommended setting temperature is 120°F / 50°C (122°F) or less.* Consult local codes for minimum operating temperatures.100 105 110 115 120 125 130 135 140Shower, hot water supply, etc.Washingdishes, etc. High temperatureThe maximum output temperature can beset using the remote controller. ( p.18)( °C (°F): )The temperature settings below are examples. The temperature settingnecessary depends on the usage, the length of piping and the time of year.*Initial factory setting is 40°C (104°F)Shower, hot water supply, etc.Washingdishes, etc.Hightemperature37 38 39 40 41 42 43 44 45 46 47 48 50 55 60(99) (100) (102) (104) (106) (108) (109) (111) (113) (115) (117) (118) (122) (131) (140)The maximum output temperaturecan be set using the remotecontroller. ( p.18)When using °F mode:When using °C mode:Check the indicator lights.Water temperatureOnOff