T6861 Standalone Thermostat And T6865 Modulating Thermostat For FCU

Honeywell's classic Halo series thermostats have always been popular in the market. Its simple design and large screen display make it the first choice among users. This thermostat not only provides a reliable solution for room temperature control but also plays an important role in building automatic control and energy saving.

Let’s take a closer look at two representative products in the Halo series: the T6861 Thermostat and the T6865 thermostat. Each of them has unique technical parameters and application characteristics.

The T6861 Thermostat, also known as the Standalone thermostat, does not come with WIFI or Modbus capabilities. It is suitable for controlling 2-pipe or 4-pipe FCU, and users can choose a three-speed fan or automatic mode according to their needs. The thermostat has 11 wiring ports, and users can choose to connect external sensors or window cards according to specific application needs. For example, in a hotel building, users can choose to connect window cards to achieve energy-saving goals. In addition, the configuration of the T6861 Thermostat is very flexible. The specific model and circuit diagram are as follows:

The thermostat's display is user-selectable in green or blue, and the frame design is available in landscape or portrait orientation. It is widely used in cooling and heating FCU systems in office buildings, hotels, apartments, and other places.

The T6865 thermostat is called an analog thermostat or 24V thermostat. It is suitable for controlling 2-pipe 0-10V output valves and FCUs for three-speed fans. Also without WIFI or Modbus capabilities, the thermostat’s back panel is equipped with 9 wiring ports. Currently, Beris Tech only provides two models to choose from. Their configurations and circuit diagrams are as follows:

Similar to the T6861, the T6865's display also allows users to choose green or blue, and the frame design can only be selected in landscape orientation.

The T6865 analog thermostat has a strong demand in the Middle East market. In the refrigeration FCU system, the energy-saving effect of this thermostat is particularly significant.

Through the introduction of these two thermostats, we can have a more comprehensive understanding of the diversity and applicability of the Halo series thermostats. Whether in ordinary office buildings, high-end hotels, or multi-functional apartments, Honeywell's Halo series thermostats can provide reliable and efficient temperature control solutions to help building energy conservation and comfort.