Navien KDB-203 STC Instruction Manual

13, 13 Ŗ Ŗ Ŗ When the length of the ue duct is less than 2m, use the ue duct of φ75mm in diameter. When the length of the ue duct is between 2m and 5m, use the ue duct of φ100mm in diameter. When the length of the ue duct is longer than 5m, use the ue duct of φ125mm in diamete…

5, Navien KDB-203 STC 5 The Structure of the boiler Operation and display panel POWER : displays the status of power on /o COMBUSTION : displays the status of the burner combustion. PUMP : displays the operating status of the circulation pump. HOT WATER : displays the operating status of heating water. LOW LEVEL :…

12, How to install 12 Choosing of the installation place The diagram of the standard piping : Expansion tank install type Ŗ Ŗ Ŗ Ŗ Ŗ Ŗ Ŗ For the place to install the boiler, choose the place possible to do the accompanying works, such as water supply works or electric works. …

7, 7 The Structure of the boiler The descriptions of the name RESET BUTTON : a switch for the restart when the “MISFIRE ”, “OVERHEAT” lamp is on POWER BUTTON : a device for the boiler’s power on/o ROOM THERMOSTAT : a device for controlling the temperature of the heating wate…