Exodraft EBC22, Инструкция по эксплуатации

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3112015_EBC22_UK
Pressure-controlled regulation of the chimney fan
Area of use
• The EBC22 is designed for use with boiler systems with 1- and 2-stage burners.
• The EBC22 can also be used for boiler systems with modulating burners.
• The EBC22 can also be used for multiple boiler systems
• The control system is intended for:
• solid fuel boilers,
• atmospheric gas boilers
• forced draft boilers for oil and gas
• condensing boilers.
• The EBC22 can control a chimney fan directly or indirectly via a frequency converter.
Method of operation
General function
• The control system monitors chimney draft and disconnects the burner in the event of errors
(the alarmdiode on the EBC22 will turn on).
• When the boiler thermostat demands heat, the chimney fan will start at max. voltage, the burner start
is delayed
• When the EBC22 registers sufficient chimney draft, the burner is released.
• The EBC22 maintains the set pressure by regulating the voltage. The pressure is shown in the display.
• In the event of an insufficient pressure the burner will be disconnected after 15 seconds.
“Insufficient pressure” is less than 64% of the set value, corresponding less than 80% flow.
• When the boiler switches off, the chimney fan is also stopped. However, it is possible to set a post-
purge period for the chimney fan (see page 29). Alternatively, the control system can be set up to keep
the chimney fan running continuously (see page 27).
Light emitting diodes and output signals
All inputs and outputs are linked to light emitting diodes for the monitoring and service of the system
(1.4.2 Light emitting diodes and terminal board, page 16).
The EBC22 has 0–10V output signals for controlling multiple chimney fans via frequency converters or
motor power relays.