Thermostats in the series are designed for BACnet/IP over Wi-Fi or MS/TP multi-stage rooftop units and analog 4-pipe fan coil units. The BACnet-compliant wired or wireless communicating thermostats ensure effortless integration into BACnet/IP (Wi-Fi) or BACnet MS/TP (EIA-485) networks. All units require 24 VAC/VDC powering from NEC Class 2 power sources. Output relays restricted to NEC Class 2 wiring. All models accommodate NTC 3k remote temperature sensor and voltage-free occupancy sensor. LCD display can be configured for °C or °F.
Model/Description | Analog and Binary Inputs | Binary Outputs | Analog Outputs | Comm | ||||||||
Space Temp | Remote Temp | Energy Savings | Humid Sensor | Stage 1 Heating/Cooling (Single Mode) |
Stage 2 Heating/Cooling (Single Mode) |
1-Speed Fan | Analog Heating/Cooling (Single Mode) |
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BAST-121C-B2 BACnet MS/TP Thermostat, 2-Heat, 2-Cool, 1-Fan, Wired |
X | X | X | X | X | X | X | MS/TP | ||||
BAST-121C-BW2 BACnet/IP Wi-Fi Thermostat 2-Heat, 2-Cool, 1-Fan, Wi-Fi |
X | X | X | X | X | X | X | Wi-Fi | ||||
Model/Description | Analog and Binary Inputs | Binary Outputs | Analog Outputs | Comm | ||||||||
Space Temp | Remote Temp | Energy Savings | Humid Sensor | Stage 1 Heating | Stage 2 Heating | Stage 1 Cooling | Stage 2 Cooling | 1-Speed Fan | Analog Heating | Analog Cooling | ||
BAST-221C-B2 BACnet MS/TP Thermostat 2-Heat, 2-Cool, 1-Fan, Wired |
X | X | X | X | X | X | X | X | MS/TP | |||
BAST-221C-BW2 BACnet/IP Thermostat 2-Heat, 2-Cool, 1-Fan, Wi-Fi |
X | X | X | X | X | X | X | X | Wi-Fi | |||
BAST-221CH-B2 BACnet MS/TP Thermostat 2-Heat, 2-Cool, 1-Fan, RH, Wired |
X | X | X | X | X | X | X | X | X | MS/TP | ||
BAST-221CH-BW2 BACnet/IP Thermostat 2-Heat, 2-Cool, 1-Fan, RH, Wi-Fi |
X | X | X | X | X | X | X | X | X | Wi-Fi | ||
BAST-421C-B2 BACnet MS/TP FCU 4-pipe, single-speed Fan, Wired |
X | X | X | X | 0-10V | 0-10V | MS/TP | |||||
BAST-421C-BW2 BACnet/IP FCU 4-pipe, single-speed Fan, Wi-Fi |
X | X | X | X | 0-10V | 0-10V | Wi-Fi | |||||
Reverse Valve | Aux Heat | Comp 1 | Comp 2 | |||||||||
BAST-321HP-B2 BACnet MS/TP Heat Pump 2-comp, 1-Aux Heat, 1-Fan, Wired |
X | X | X | X | X | X | X | X | MS/TP | |||
BAST-321HP-BW2 BACnet/IP Heat Pump 2-comp, 1-Aux Heat, 1-Fan, Wi-Fi |
X | X | X | X | X | X | X | X | Wi-Fi |
Fan coil units are intended for 4-pipe systems and modulating 0-10V actuators.
The BAST-121C is suited for single or multi-stage heating only or cooling only binary or analog output control applications, such as unitary heating or cooling units. The thermostat can control one or two stages of heating, one or two stages of Direct Expansion (DX) cooling, or a single 0-10V control output for either modulated heating or cooling. Configurable and adaptive control algorithm applied to multi-stage on/off control saves energy and ensures seamless comfort for the occupants.
BAST-221 Thermostats are suited for single or multi-stage heating, cooling and ventilation binary output control applications such as RTUs or AHUs. Configurable and adaptive control algorithm applied to multi-stage on/off control saves energy and ensures seamless comfort for the occupants.
BAST-321 Heat Pump Thermostats are suited for heating, cooling, and ventilation with binary output control for single and multi-stage heat pumps with or without 3rd stage auxiliary heat. An adaptive control algorithm applied to multi-stage on/off control saves energy and ensures comfort for the occupants.
These thermostats are suited for modulated heating, cooling, and ventilation with analog output control in 4-pipe applications such as fan coil units (FCU) or air handlers. Configurable and adaptive control algorithm applied to multi-stage on/off control saves energy and ensures seamless comfort for the occupants.