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CONTEMPORARY CONTROLS BAST-421C-B2 BACnet Communicating Thermostat User Manual
1.1 Features and Benefits
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Stand-alone thermostat algorithm or fully BACnet network-controllable
BTL listed with B-ASC device profile for integration into BACnetnetworks
24VAC (+/-10%) power input
BACnet MS/TP with baud rate selections up to 76.8kbps
Suitable for 4-pipe modulating heat/cool control applications with manual or automatic
changeover NOTE: 2-pipe heat/cool applications and floating-type valve actuators are
not supported by this device
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Adjustable algorithm applied to modulating valve control
Effective run time accumulation for energy consumption metering
Full configurable control parameters such as deadband, proportional gain, integral rate
and cycle time
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Adjustable minimum/maximum set point ranges
Three options for temperature reading:
o Built-in temperature sensor, or
o Remote sensor (RS) input for wiring in a remote temperature sensor (NTC 3kΩ), or
o BACnet network temperature override
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Occupancy status can be switched (1) locally by the user, (2) by using a separate
occupancy sensor, or (3) by using BACnet network command.
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Separate adjustable occupied and unoccupied set points for heating and cooling mode
Fan can be set to run continuously or automatically
Non-volatile memory retains user settings during power outage
Thermostat buttons are lockable to prevent tampering
°C or °F display
Energy Savings Input (ESI) for local occupancy control
Control outputs disabled during “OFF” state for safety
UM-15093000-AA2
Page 4
1.2 Product Image and Main Features
BASstat 421C-B2 and BASstat 421C-BW2
UM-15093000-AA2
Page 5
| 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 |
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