Lennox BAC020SNM, Installation, Operating And Maintenance

Page: 94 / 137

CLIMATIC 50 – ROOFTOP – VERSION 23
BALTIC R410A-IOM-0708-E Page 93
TABLE OF CONTENTS
Page
WIRING CONNECTIONS
Important warning ..............................................................................................94
Connection .........................................................................................................94
Sensors and probes ...........................................................................................94
DS 50 Display .....................................................................................................94
DC 50 or DM 50 display (remote connection) .......................................................95
Connection on DT 50 derivator ............................................................................95
Ferrites protection of display................................................................................96
DM 50 and Master/Slave communication ............................................................96
BMS communication
CUSTOMIZED INPUT/OUTPUT
Digital Outputs Nc or No
–
Dry Contacts .............................................................98
Digital inputs 24V AC or DC.................................................................................98
Analog inputs .....................................................................................................99
Ambient temperature setpoint offset
–
4-20 mA signal ..........................................99
Minimum fresh air setpoint
–
4-20mA signal .........................................................99
Entry for a meteorological sensor.........................................................................99
Input for meteorological sensor for relative humidity .............................................99
Free temperature probe connection .....................................................................99
Free relative humidity sensor connection .............................................................99
SCHEDULING
–
CLOCK SETTING
DC COMFORT AND DM 50 MULTI CUSTOMER DISPLAY
Buttons ..............................................................................................................101
Brightness / Contrast...........................................................................................101
Functions with DM 50 .........................................................................................102
Main screen ........................................................................................................102
3 hour override....................................................................................................102
Clock menu.........................................................................................................103
“Programming” menu
..........................................................................................103
Alarms ................................................................................................................104
Start/Stop ...........................................................................................................105
1 week override...................................................................................................105
BMS address tables
Modbus, Trend, BACnet & CAREL ......................................................................106
Lonworks ............................................................................................................111
ERROR CODES...............................................................................................................113