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(Building Automation)
Model
2000T: Temperature Display and Command Module
Description
The Model 2000T is an indoor temperature sensor, display
and user interface. It allows occupants of a temperature-controlled environment
to interact with the HVAC equipment via the LonWorks communication protocol.
Occupants can view room temperature, current temperature setting, outside air
temperature, equipment operating status, and equipment alarms. Using the Model
2000T, the occupant can change the HVAC operating mode, the occupancy mode, as
well as the temperature setpoint. For maximum compatibility the Model 2000T is
implemented using the LonMark 8090 profile for Space Comfort Control Command
Module. The Model 2000T has unique features to allow more accurate reporting of
room temperature to the HVAC equipment. One, the on-board temperature sensor is
located away from the electronics in a separate compartment. This allows a more
accurate measurement of air temperature. Two, a temperature averaging function
allows up to four temperature sensors to be averaged before the room temperature
is reported. This is important for large rooms, office buildings, or homes where
the location of a single thermostat does not provide a good representation of
the average temperature. A feature of the Model 2000T allows the occupancy
button to be used as an on/off switch to control other network attached devices.
Key Features
 | On-board temperature sensor. |
| Mounts on any standard single-gang wiring conduit box. |
| Compact, thin and stylish design. Only 2.8” W x 4.55” H x 0.79” D |
| Sensing element is isolated from electronics for more accurate air
temperature measurement. |
| Implements LonMark 8090 Profile. |
| Open communication standard using LONWORKS® Protocol |
| All outputs available using Standard Network Variables (SNVT) |
| HVAC Mode Control and display |
| Temperature averaging using up to 4 network attached sensors. |
| Setpoint display and modification |
| Supports user lockout via network |
| Display of outdoor temperature |
| Occupancy status display and control |
| Auxiliary network switch output control to control network attached
devices such as lights or exhaust fans. |
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