Ecoflam MAX 4 HT Manual Del Usuario página 9

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
OW
M
Z
BV1
FS
1 2
-
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
420010371702
R
RJ45
3 4 4'
5s
- < 400s 17s
1 No voltage
2 Power supply on, no heat request
3 Heat request: pre-heater ON
4 Preventilation: motor ON, ignition ON
4' Parasitic flame monitoring
5 Burner start: solenoid valve OFF, flame
production, safety time
5 6
5s 5s
KIT E-BCU
DIAGNOSTIC TOOL
(not supplied)
7 8 9
- < 1s -
6 Flame present, post-ignition period
7 Burner operation
8 End of heat request, solenoid valve
closes, burner stop
9 Standby
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EN
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