CFDM fire dampers are diaphragms in ducted ventilation systems that prevent the spread of fire and products of combustion from one fire segment to another by closing the air duct at points of fire separation structures. The damper diaphragm automatically closes the air duct with a closing spring.
BR-TWIN 1-010 potentiometer
The BR-TWIN 1-010 EC potentiometer is designed for electronically commutated EC motors. It allows for setting two speeds and has a NO input (e.g. for a timer or CO2 sensor). The potentiometer is supplied with a signal up to Uc max = 15V. It has enclosure protection class IP 65.
The BR-TWIN 1-010 EC potentiometer is designed for electronically commutated EC motors. It allows to configure two speeds and has a NO input (e.g. for a timer or CO2 sensor).
The potentiometer is supplied with a signal up to Uc max = 15V. It has an enclosure protection class of IP 65.
FUNCTIONS
– The potentiometer offers the possibility to set two speeds V1 and V2
– Control of the speed of the EC fans takes place via a 0-Uc max signal (Uc max = 15V)
– Built-in short-circuit input allows switching between V1 and V2 with an external signal 0/1
– The 0/1 signal for settings switching can be generated by additional external devices, e.g. CO2 sensors or time programmers
– The use of an external BR timer box enables day/night ventilation operation. One external timer box can handle the operation of up to 5 potentiometers. It is recommended to use one programmer box for the fan control potentiometers, e.g. within one air handling unit.
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The TLS silencer is used in round ventilation ducts. As a standard, the silencers are delivered with a rubber seal. Inside they are filled with 50 mm thick mineral wool.
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CSR-B EC W, CSR-B EC Zero Plus W, CSR-B EC NFC W controller
Controllers of the CSR-B series are constant pressure regulators designed for cooperation with duct and roof fans with EC motors. By continuously controlling the fan speed, they ensure constant pressure in the ventilation ducting. Based on a PI controller, CSR-B controllers have the option to set a constant fan power and programmable upper and lower fan control limits.