All in- and outputs have an LED for fail-safe supervi- sion and servicing the system (fig. 1-I). EBC12 (fig. 1) is an automatic control unit with con- stant pressure regulation of EXHAUSTO chimney Additional function fans. EBC12 is used for multiple systems and for boil- The controls have two extra safety functions which ers with a modulating burner.
3001434-2006-09-01.fm 4/12 Installation Wiring Fitting The control terminals are spring-loaded. Use a suita- Fit the control and the pressure transducer in the ble size of screwdriver for fitting the conductors. boiler room. The XTP-sensor’s probe (fig. 2-A) must Fig. 4 shows how to fit the wires. be mounted in the boiler’s fluepipe or manifold.
3001434-2006-09-01.fm 5/12 2.2.1 Connection examples Terminals (fig. 5) The controls can be connected to a voltage signal as Supply L1 well as a voltage free set of contacts - see connection Supply N example 1 or 2. It is recommended to contact the Supply PE boiler manufacturer to ensure correct connections to Boiler thermostat.
3001434-2006-09-01.fm 6/12 2.2.3 Example 2 - Voltage free contact (fig. 6) Terminals (fig. 6) The example shows how a voltage free contact from Supply L1 the boiler control is connected to the EBC12. Supply N • Connect the power supply to terminals 1-3. Supply PE Boiler thermostat.
3001434-2006-09-01.fm 7/12 2.2.4 Example 3 - Extra fail-safe supervision with pres- Terminals (fig. 7) sure differential switch (fig. 7) Supply L1 The example shows how a pressure differential Supply N switch (PDS) must be connected to an EBC12. The Supply PE pressure differential switch carries out extra fail-safe Boiler thermostat.
3001434-2006-09-01.fm 8/12 2.2.5 Example 4 - Continuous chimney fan operation Terminals (fig. 8) (fig. 8) Supply L1 This example shows how the EBC12 is to be con- Supply N nected if continuous chimney fan operation is Supply PE required. Boiler thermostat. Opto coupler (-)(10-230V) •...
(PDS) has not been con- sequencer or management system we recommend nected. the EXHAUSTO Relay Box ES12-EU-01 to interface a maximum of 4 boilers, use multiple relay boxes for more boilers. Please refer to the Instruction Manual If the factory setting is to be changed, the black top on ES12-EU-01 for wiring details.
3001434-2006-09-01.fm 10/12 Commissioning Concerning setpoint values please refer to the data of Commissioning must be carried out on the EBC12 to each boiler, anyway the following may be considered ensure a correct draught from the system. as typical values. Proceed as follows: •...
3001434-2006-09-01.fm 11/12 Fault finding Observation Fault type Solution The supply LED (fig.11-A) is not lit. Defective fuse or no 1) Check the fuse (fig. 11-B) and the chimney fan. mains connection. 2) Check the wiring. Permanent light in LED for Upwards System fault.
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