All these thermostats are designed for HVAC system with a Fan Coil Unit (FCU) which is a device consisting of a heating and/or cooling heat exchanger or 'coil' and fan. It is part of an HVAC system found in hotel, residential, commercial, and industrial buildings.
These products are not compatible for window type, split type and portable air-conditioner.
This low-voltage touch thermostat is one part of user interface and it needs to combine with below modules to form a complete FCU control.
|Modules||Driver Board||B32 Controller||B33 Controller||B31 Controller|
|Functions||Integral thermostat||Split-type digital thermostat||Split-type modulating thermostat||Split-type customized thermostat|
|Cooling valve||Relay *1||Relay *1||0 ~ 10V||*3|
|Heating valve||Relay *1||Relay *1||No||*3|
|Fan speed||3 relays *1 (L,M,H)||3 relays *1 (L,M,H)||3 relay *1 (L,M,H)||*3|
|Keycard input||Yes/No *2||Yes||Yes||Yes|
|B3x operation mode||No||Yes||Yes||Yes|
|Data communication with FCU *3||No||No||No||Yes|
|*1||All relays used in modules are Single-Pole Single-Throw, Normally-Open (SPST-NO).|
|*2||"Yes/No" is depended on model type of integral thermostat.|
|*3||B31 controller shall employ commands to dedicated FCU to control / monitor FCU's cooling, heating and fan speed over data communication.|