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CONTEMPORARY CONTROLS BAST-421C-B2 BACnet Communicating Thermostat User Manual
Type &
Instance
Readable/
Writable
Object name
Description
Range and Definition
Maximum Fan
Output
Maximum Fan Output at
Auto Fan Mode (for
Modulating Fan Application)
Low Fan Speed
R/W
R/W
AV 42
AV 43
Reg 50~100%
0%~Reg 53
Low Fan Speed
Setting
Setting (for
Modulating Fan
Med. Fan Speed
Setting
Med. Fan Speed Setting (for
Modulating Fan
Application)
Hi Fan Speed
Setting (For
AV 44
AV 45
R/W
R/W
Reg 52~Reg54
Reg 53~100%
Hi Fan Speed
Setting
Modulating Fan
Minimum Off
Time
AV 46
AV 47
AV 48
R/W
R/W
R/W
Minimum Off Time
Minimum On Time
0~600 seconds
Minimum On
Time
0~600 seconds
0~500 (Sec.)
Integral-Cycle
Time 2
Integral Time and Output
Cycle Time 2
Set Point for
Humidity
Set Point for
Humidity Control
0~1000 (0.0~100.0%RH)
AV 49
AV 50
R/W
R/W
Dew Point Set
Point
Dew Point
Temperature Set
Point
-999~9999: -99.9~999.9
℃/°F
Occupancy
Status
Status of
Occupancy
BI 0
BI 1
BI 2
R
R
R
0: Room Occupied
1: Room Unoccupied
Window-Door
Status
Window/ Door
Status
0: Door/Window Closed
1: Door/Window Open
Cooling-heating
Status
Status of Cooling/Heating
Control Output
0: Close & Off 1: Open & On
Status of Relay 1
BI 3
BI 4
R
R
Relay 1 Status
Relay 2 Status
0: Off, 1: On
0: Off, 1: On
Status of Relay 2
Status of Relay 3
Status of Relay 4
BI 5
BI 6
R
R
Relay 3 Status
Relay 4 Status
0: Off, 1: On
0: Off, 1: On
Status of Relay 5
Status of Relay 6
BI 7
BI 8
R
R
Relay 5 Status
Relay 6 Status
0: Off, 1: On
0: Off, 1: On
Status of Relay 7 Fan
Status of Digital Input 1
BI 9
R
R
Relay 7 Status
Dl 1 Status
0: Off, 1: On
0: Off, 1: On
BI 10
Status of Digital Input 2
BI 11
R
Dl 2 Status
0: Off, 1: On
Page 27
UM-15093000-AA2
| General | Details |
|---|---|
| Name | CONTEMPORARY CONTROLS BAST-421C-B2 BACnet Communicating Thermostat User Manual |
| Make | CONTEMPORARY CONTROLS |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.65 MB |













































