OSTBERG HERU 400-2400 S, User Manual, Page: 7 / 120

7 / 120
2017-11-03 Climatix HERU® 400-2400
Humidity sensor ................................................................................................................... 75
External setpoint .................................................................................................................. 76
Alarm input heating/cooling ................................................................................................ 77
12. Miscellaneous ...................................................................................................... 79
Rotary heat exchanger control unit ..................................................................................... 79
Connection diagram .............................................................................................. 79
Functions ............................................................................................................... 80
Operation indication in the control unit ............................................................... 80
Time switch program ........................................................................................................... 81
General ................................................................................................................. 81
Week schedule ...................................................................................................... 81
Day schedule ......................................................................................................... 82
Calendar (exception and fix off) ............................................................................ 82
Configuration ....................................................................................................................... 83
Communication .................................................................................................................... 85
General ................................................................................................................. 85
MODBUS ............................................................................................................... 86
Initiation of internal MODBUS interface............................................................. 86
Checking IO configuration .................................................................................................... 88
Unconfigured IOs ................................................................................................ 88
Double-configured IOs ........................................................................................ 88
HERU® CX I/O configuration ............................................................................... 91
HERU address list Modbus master ..................................................................... 92
Program versions ................................................................................................................. 92
BSP and application in the controller ................................................................. 92
BSP in HMI .......................................................................................................... 92
Alarm handling ..................................................................................................................... 94
Alarm button function ........................................................................................ 95
Procedure for non-saving alarms........................................................................ 95
Procedure for saving alarms: .............................................................................. 96
Alarm list information ......................................................................................... 96
Menu structure .................................................................................................................... 97
Menu overview ................................................................................................... 97
Start page > Main index > Unit ........................................................................... 98
Start page > Main index > System overview ....................................................... 99
Start page > Main index > Configuration ............................................................ 99
13. SERVICE HERU® .................................................................................................. 100
Service interval ................................................................................................................... 100
Service 100
Damper 101
Duct cooling coil ................................................................................................................. 102
Electric heater .................................................................................................................... 103
Fans 105
Function 105
Check 105
Correct as necessary. ......................................................................................................... 105
Filter 107
Function 107