UM-15094500-AA0
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Introduction
The BAST-321HP-BW2 is a member of the BASstat BACnet Communicating Thermostat
series. It provides multi-staged heating and cooling control in an attractive wall-mounted
enclosure with a large LCD display. Intended for use with single and multiple stage heat
pump units, the thermostat can control 2 reversible DX heat pump compressors, one
binary reversing valve, one binary supply fan relay, plus one binary stage of auxiliary
heating (gas or electric). This BASstat is BACnet compliant and BTL listed to ensure
seamless integration, using BACnet/IP over Wi-Fi and can be integrated into any 802.11
b/g/n Wi-Fi network. A large, easy to read LCD display indicates setpoint, space
temperature and current mode of operation using graphical icons.
The BASstat has a built-in sp
ace temperature sensor with provision for remote wired 3kΩ
NTC thermistor sensor or temperature value can be sent by another communicating
device over the BACnet network. The BASstat is configurable locally using the
Engineering Menu
or via a network connection to a BACnet client. Contemporary Controls’
free
can be used for initial configuration of the thermostat over
BACnet. Control algorithm parameters such as deadband, proportional gain, integral rate
and trip points are all configurable. This BASstat also features configurable fan control and
occupancy selection. Operating states are indicated on the thermostat display.
The numerous features available in the BASstat can be configured by the systems
integrator to meet user requirements in two different ways. One way is using a button
sequence on the thermostat in order to enter the
Engineering Menu
- which requires
physical access to the thermostat. Optionally, the buttons could be locked to limit user
access to
Engineering Menu
after installation is complete. The second method is
configuring the thermostat over the BACnet network using a BACnet client device or
software such as Contemporary Controls’ free