ECKELMANN Case Controller UA 4 E Series - Page 4

Firmware V3.13
21.04.2021
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5.7.4 Continuous temperature control by coldroom sensor ............................................................................46
5.7.5 Continuous temperature monitoring using refrigerant temperature sensor............................................48
5.7.6 On-off control..........................................................................................................................................50
5.7.7 Superheat control ...................................................................................................................................51
5.7.8 Connection of pressure transmitters / humidity sensors ........................................................................54
5.7.9 Sending and receiving the analogue values via CAN bus .....................................................................55
5.7.10 Humidity control......................................................................................................................................56
5.7.11 Regulation according to tc / high pressure.............................................................................................58
5.7.12 Dynamic determination of the tc setpoint ...............................................................................................59
5.7.13 Fixed opening degree in the pump down / injection phase ....................................................................60
5.7.13.1 Fixed valve opening degree for servicing purposes...............................................................................60
5.7.14 Limiting the Opening Degree..................................................................................................................61
5.7.15 MOP function..........................................................................................................................................61
5.7.16 Run time limitation / continuous run monitoring of the regulation ..........................................................62
5.7.17 Forced cooling (except UK 100 E, KR 160 E)........................................................................................63
5.7.18 Heating circuit control.............................................................................................................................64
5.7.19 Emergency Op. ......................................................................................................................................65
5.7.20 Operation with up to four return air sensors - only UA 131 E LS ...........................................................66
5.8 Defrosting .............................................................................................................................................66
5.8.1 Typesofdefrosting–anoverview..........................................................................................................66
5.8.2 Defrosting in general ..............................................................................................................................67
5.8.3 Discharge gas defrosting (hot gas defrosting)........................................................................................73
5.8.4 Master/slavemode–defrostsynchronisationviaCANbus...................................................................74
5.8.5 Master/slavemode–defrostsynchronisationviawiring........................................................................77
5.8.5.1 Master-slave mode for the synchronisation of the zones of a single contr.............................................78
5.8.5.2 Master-slave mode for the synchronisation of several controllers .........................................................79
5.8.5.3 Necessary settings for the master / slave mode ....................................................................................80
5.8.5.4 Special features and constraints ............................................................................................................80
5.8.6 Consecutive defrost (CD) via CAN bus..................................................................................................82
5.9 Alarm relay............................................................................................................................................87
5.10 Fan control with case and coldroom controllers ..............................................................................87
5.10.1 Fan control on multidecks - controller type UA 121 E ............................................................................87
5.10.2 Fan control - controller type UA 131 E ...................................................................................................87
5.10.3 Fan control - controller type UA 131 E LS with enhanced fan control....................................................88
5.10.4 Fan control - controller type UA 141 E ...................................................................................................94
5.10.5 Fan control with coldroom controllers.....................................................................................................94
5.10.6 Coldroom with defrost heater (controller type UR 141 TE) ....................................................................96
5.10.7 Coldroom without defrost heater - controller type UR 141 NE ...............................................................97