Nordmann AT4 D Service Manual

27, 27 4.3 On/Off hysteresis of the supply and the exhaust fan (2-fan operation) -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 35 36 37 38 39 40 41 42 43 44 45 Actual temperature in °C Exhaust Air Supply Air On Off Temperature difference to setpoint in °C Supply Air Exhaust Air Setpoint -5 5 40 °C -4…

15, 15 E15 Program fault Function: indicates that the steam generator is blocked via the function “Countdown”. Procedure: Error E15 may be reset only if the correct unlock code is entered. If the unlock code gets lost the CPU board must be replaced or newly programmed. Behav…

22, Nordmann AT4 D 22 W32, E32 No temperature signal from temperature sensor Function: monitoring of the temperature signal at the control input (sensor interruption). Procedure: If the temperature drops below the threshold of 3% or exceeds the threshold of 97% (100% - 3%) the steam production is stopped a…

30, 30 8. Check installation of the steam generator and steam distribution accord- ing to the mounting instructions Nordmann AT4 D. 9. The drain water quantity of the Nordmann AT4 D must be increased. Check the following water management settings in the user settings level of the Nordman…

7, 7 Notes on the function “Ship” The “Ship” function is used if the Nordmann AT4 D is installed on a vessel. On vessels fault currents are monitored much more exactly than elsewhere, since these lead to an increased corrosion of the ship trunk. Due to the fact that small fault cur…

11, 11 2.10 Resetting the control to factory settings Caution! When resetting the control to factory settings, any modied settings in the user level are lost. Select “FactoryReset” in the engineering menu, then press the <Set> key. The reset dialogue shows up in the display. Press the <…