AMR-FCT20 – HVAC controller

The AMR-FCT20/DM programmable controller for independent control of room temperature was designed to control Fan-Coil units, chilled beams, ceiling heating systems, radiator-based heating systems, VAV systems and their combinations. When joined with programmable room control units and subordinated to control systems produced by AMiT company, it becomes a fundamental element of modern BMS (Building Management Systems) – focus on the effective, economical and safe operation of HVAC systems while observing inner environment quality of the managed building.

The controller is supplied with standard control algorithms for control of two- and four-pipe Fan-Coil units or ceiling units. One of the configuration methods incorporates a simple and freely available AppConfig configuration utility. Should the supplied algorithms functionality be insufficient for your needs, the controller supports custom applications created in DetStudio IDE. Replacing the original application with a custom one is reversible.

The controller is intended for mounting on a 35 mm DIN rail and requires 230 V AC. Aside from the standard RTD temperature sensors, the controller also supports NTC sensors. Active elements are controlled by power relays, triacs and/or analogue output signals. There is an RS485 interface used for communication with on-wall controllers. It also provides the connection between them and the power source, supplying them with 24 V DC. There is a second RS485 that is used for communication with the superior system (e.g. for the given floor) or to communicate with a communication central unit via the MODBUS RTU protocol.


Inputs 2× RTD / NTC / contact
Relay outputs 3× SPST-NO
Max. output current 4 A at 230 V AC / 24 V DC (resistive load)
Maximum total current 6 A
Triac outputs 2
Max. voltage / current 250 V AC / 0.5 A AC (resistive load)
Analogue outputs 3× 0 V to 10 V
Maximum current 10 mA
Communication 2× RS485
RAM and RTC backup No
Ingress protection rate IP20
Mounting 35 mm DIN rail
Power supply 230 V AC ±10 %
Dimensions (w × h × d) (162 × 91 × 61) mm
Document File
AMR-FCT20/DM Data sheet amr-fct20dm_d_en_100.pdf
Drawing symbol
ePLAN macro
Operation manual amr-fct20dm_g_en_104.pdf

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