E-Bcu Oil Control And Safety Unit - Ecoflam MAX 20 D HT Manual

Function
- E-BCU OIL control and safety unit
R - Reset button + lock-out led.
RJ45 - Connector for PC interface (diagnostic, separate item).
The E-BCU OIL fuel oil control and safety unit controls and monitors the forced draught burner. The microprocessor- controlled
program sequence ensures maximum stability of time periods, regardless of fluctuations in the power supply or ambient temperature.
The design of the automatic combustion control unit protects it from the effects of brownouts. Whenever the supply voltage drops
below its rated minimum level (170 V), the control unit shuts down - even in the absence of a malfunction signal. The control unit
switches itself back on again once the voltage has exceeded the 178 V.
Locking and unlocking the system
The control unit can be locked (switched to malfunction) and unlocked (malfunction cleared) by pressing the R reset button, provided
the system is connected to the mains power supply.
!
Always disconnect the power supply before installing or removing the control unit. Do not attempt to open or carry out repairs
on the control unit.
LINE
W
M
Z
BV1
FS
LINE Electrical supply
BV... Fuel valve
FS Flame signal
M Burner motor
OW Release contact of oil preheater
W Control thermostat or pressurestat
Z Ignition transformer
420010372202
R
RJ45
1 2 4 4'
5s
- - 17s
1 No voltage
2 Power supply on, no heat request
4 Preventilation: motor ON, ignition ON
4' Parasitic flame monitoring
5 Burner start: solenoid valve OFF, flame
production, safety time
6 Flame present, post-ignition period
5 6
5s 5s
KIT E-BCU
DIAGNOSTIC TOOL
(not supplied)
7 8 9
- < 1s -
7 Burner operation
8 End of heat request, solenoid valve
closes, burner stop
9 Standby
www.ecoflam-burners.com
EN
9