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The EBC22 is an automatic control with a pressure transducer (XTP) for one or more boilers or other installations where multiple heat sources are connected to the same chimney.

With the help of the XTP sensors, which are installed in the chimney, the low pressure is monitored and maintained by regulating the speed of the chimney fan.EBC20_web

The control has inputs and outputs for one or two boilers. With the exodraft ES12 relay box this number can be expanded to up to four boilers.

The EBC22 automatic also offers the possibility of an external entry point for a pressure switch or alarm sensor as well as the possibility of an alarm exit point for example for a building management system.


When the boiler or the heating system starts, a signal is sent to the EBC22 which starts the chimney fan at full speed. When the control receives the signal that the desired chimney vacuum has been reached, a signal is sent to start the boiler’s burner.

The necessary chimney draft is therefore always guaranteed when you start the boiler, thereby the best and most economical operating conditions are ensured.

If the chimney draft falls below the required level, the speed of the chimney fan is regulated until the required chimney draft is reached.

The EBC22 has an external alarm output for integration into a building management system, etc.

Control EBC22
Dimension (H x W x D) 204 x 240 x 77 mm
Weight 1,62 kg
Density class
Control range 0 Pa – 150 Pa
Fuse T 4 A
Voltage 230 V AC, 50 Hz
Max. Motor load. 475 W
Ambient temperature -20 ºC – +60 ºC
Material ABS PA758
XTP sensor: XTP-150
Dimension (H x W x D) 75 x 92 x 49 mm
Ambient temperature 0 ºC – +70 ºC
Max. Distance to EBC20 XTP-sensor 100 m
Density class IP 54
Inputs Control: EBC22
Digital inputs (D11 & D12) 18 – 230 V AC/DC
Pressure sensor, input (XTP) 0 – 10 VDC, 20 mA
Pressure switch, input (PDS) 24 V DC, 20 mA
Outputs Control: EBC22
Digital outputs relay (DO1 & DO2) 250 V AC, 8A, AC3
Motor control, supply voltage motor -3 %, 3A AC3
Motor start/stop relay 250 V AC, 8A AC3
Control signal 0 -10 VDC 20 mA
Power supply with 24 V 100 mA
DC alarm output relay 250 V AC, 8A AC3
The EBC22 is an automatic control for chimney fans on boilers and large systems. GASTEC-Approved
Relay boxes

Relay box for the EBC22 controls. It is possible to connect up to four boilers

Frequency converters

Frequency converter FRK008 is used with exodraft RSV400-4-2 chimney fan, and the frequency converter FRK009 is used with the exodraft RSV450-4-2 chimney fan

Posted by bech_morten / Posted on 04 Jan
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