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TYPES OF CONNECTION
All connections available in the system are listed below.
Reference
Description
Type of connector
J1
Functional earth (flame monitoring)
Female fast-on 6.3 mm
J2
Flame detection electrode
Female fast-on 4.8 mm
ACC2
Ignition electrode
Female fast-on 2.8 mm
J3
Load safety earth connection
Female fast-on 6.3 mm (7 pins)
J4
Earth connection input
2-pin screw terminal board for cables Ø 2.5 mm
2
J5
Power supply input
2-pin screw terminal board for cables Ø 2.5 mm
2
J6
Power supply for FAN hot air blower, EF burner
motor, auxiliary electronic ignition transformer and
modulation increase/decrease inputs
9-pin connector type MOLEX® 3001 series
(terminals type MOLEX® 2478 series)
J7 – J8
(note 1)
Power supply for EV1 first valve stage and EV2
second valve stage
4-pin connector type MOLEX® 3001 series
(terminals type MOLEX® 2478 series)
J9
Modulator (MOD) power supply connector
2-pin connector type LUMBERG® 3114 series
(terminals type LUMBERG® 3111 01 L series)
J10
Heating circuit probe (SR) and room temperature
probe (SA)
6-pin connector type LUMBERG® 3114 series
(terminals type LUMBERG® 3111 01 L series)
J11
Air pressure switch (APS) or PWM control brushless
fan low-voltage signals
7-pin connector type LUMBERG® 3114 series
(terminals type LUMBERG® 3111 01 L series)
J12
Opentherm® communication and fire damper input
6-pin screw terminal board for cables Ø 2.5 mm
2
J13
Serial communication type RS-232 for diagnostic
software interfacing
4-pin connector type LUMBERG® 3517 04 K series
J14
LED status signals and reset signal remoting
connector
5-pin connector type LUMBERG® 3517 05 K series
J19
Pressure sensor
3-pin connector type LUMBERG® 3114 series
(terminals type LUMBERG® 3111 01 L series)
NOTES
1.
The J8 connector is mounted in parallel to the J7 connector, i.e. from the same position it is possible to take the same output signal.
This connector is useful for appliances equipped with double-coil gas valves.