ECKELMANN UA 400 - Fan Control - Controller Type UA 131 LS with Enhanced Fan Control

Firmware V3.15
21.04.2021
53/401
•
•
•
•
•
•
5.5.8.3 Fan control - controller type UA 131 LS with enhanced fan control
Controller type: only UA 131 LS with enhanced fan control
The enhanced functions for the fan control must be activated via the DIP switch S3 (5=ON) on the circuit board
of the case controller.
Apartfromtheterminalassignmentofthe230Vrelayoutputs,theterminalassignmentisidenticaltothe
terminalassignmentoftheUA131(seechapter Belegung der Analogeingänge für Temperaturfühler).
The fan relay operates inverted:
if the controller switches on the fan, the relay contact (15/16) is closed;
if the controller switches off the fan, the relay contact (15/16) is opened.
Parametrisation of the enhanced fan control
The relevant parameters for the fan control are in the Operation menu of the case controller under menu 2
Setpoints - 6 Fans and can be used for the normal setpoint and the alternative setpoint. The desired operating
modemustfirstbeselectedforthefancontrol.ThisisdoneviatheparameterBetrArt.
The following four parameters are available for the operating mode:
DAUERLAUF(continuousoperation)
VORLAUF(flow)
NACHLAUF(overrun)
VERZ.N.ABT. (delay after defrost)
ThetwoparametersLüfterverzögerandLüfter Über are used for control of the fans via the temperature at the
evaporator sensors R1.1 and R1.3. These parameters are not effective in all operating modes.
Function description of the 4 operating modes
1. Operating mode "continuous operation"
The fan relay is always switched on in this operating mode.
Whenusingthefancontrol,noalarmsignallingviathe230Valarmrelaycanbeperformed.However,
the24VDCoutputattheterminals81/82/83canbeusedforalarmsignalling.
