The control can be used in one of two ways: Once the appliance has satisfied the thermostat setting and shut down, the control will turn off the fan. In case of insufficient draft, the control will shut down the boiler after 12 seconds. When the necessary draft is achieved, the control will allow boiler firing and regulate the voltage to the fan or VFD so the required draft is maintained (the value can be viewed in the display). When the appliance thermostat closes and calls for heat, the control will send maximum voltage to the chimney fan or VFD. The use of the EBC 12 is not restricted to any type of fuel or type of heating appliance. The control has an integrated safety system that assures the heating appliance is shut down in case of fan failure or control failure. Description The control monitors the draft in a chimney system via connection to a pressure sensor (XTP) attached to the chimney, and maintains it by modulating the fan speed. The EBC 12 is typically used to control the draft in systems requiring a single boiler or water heater. It can control the fan speed directly or via a Variable Frequency Drive (VFD). The EBC 12 can be used with EXHAUSTO Models RSV, BESF, and BESB. This is achieved by modulating the speed of a chimney fan or ventilator. 3912019 01.07 Product Information EXHAUSTO Modulating Fan Control EBC 12 Use The EXHAUSTO EBC 12 is a Modulating Fan Control used with single appliances to monitor and maintain a constant draft or pressure in a chimney or duct.
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