ECKELMANN UA 400 - Page 33

Firmware V3.15
21.04.2021
33/401
Defrosting in two-zone operation
In two-zone operation, sensors Rx.1 act on Relay 1 and Rx.2 on Relay 2.
R1.x:Defrostsensor(withUA121,UA131,UR141NK/TK,UA131DDthesesensorsareusedfordefrosting)
R2.x: Supply air sensor (UA 111, UA 111 D, UA 141 these sensors are used for defrosting)
Solenoid valve 1: Relay for Solenoid Valve Zone 1
Solenoid valve 2: Relay for Solenoid Valve Zone 2
Defrostheater1to4:RelayforDefrostHeater1to4(dependingoncontrollertype)