Automatic Firing Connections; Ignition Transformer With Flame Monitor; Oil Burner Pump And Oil Filter - Daikin Rotex A1 BO Series Installation And Maintenance Instructions Manual

7.6 Automatic firing connections

The function mode of the automatic firing is described in
section 7.1.
Fig. 7-14 Automatic firing CM165-R1
Connect Pin Cable colour
or
L1 brown
X1 PE green/yellow
N blue
DI brown
L1 black
X2
PE green/yellow
N blue
L1 brown
VV n.a.
X13
V1 blue
PE green/yellow
1 brown
3 blue
X4
2 brown
4 blue
BUS - brown
X5
BUS + blue
N blue
X6 PE n.a.
L brown
N blue
FL black
X7
L1 brown
N blue
X8 PE green/yellow
L1 brown
HALL n.a.
X9 PWM n.a.
GND n.a.
n.a. Not assigned
Tab. 7-2 Assignment and colours of the connection cable on the
automatic firing CM165-R1
FA ROTEX A1 BOe - 02/2014
Function
Mains connection,
switched by boiler control-
ler (connection J10)
Oil preheater
Oil valve
return flow temperature
sensor
Flow temperature sensor
Communication with
boiler controller
ignition
Flame monitor
(N + FL: Switching output)
(L1: continuous power
supply)
Oil pump + blower
none

7.7 Ignition transformer with flame monitor

1 Ignition cable connections
(2x 7.5 kV)
2 Status display (LED)
3 Connection flame monitor
Fig. 7-15 Ignition transformer with integrated flame monitor
The ignition transformer with flame detection is a high-frequency
ignition device with a vibration frequency of approx. 15 - 20 kHz.
The flame of fuel-air mixture is detected by the ignition electrode
via a special switching.
With a flame present, a stream of ions is set up between the ig-
nition electrode and earth. The signal is evaluated in the ignition
device. This signals the automatic firing whether there is a flame
or not.
The ignition can be operated in parallel with the flame monitor,
without influencing it.
A LED indicates the operating status:
5 seconds after burner request a flashing LED (flashing
frequency 1 - 2 Hz) signals readiness (power supply present,
but no flame).
If a flame is detected, the LED switches from flashing to
continuous within one second.
If the LED flickers during burner operation inadequate
earthing of the burner is probable.
Check protection earthing.
If the flame goes out the LED is switched off for approx. 5
secs. After the 5 seconds the LED starts to flash again and
thus indicates the readiness for flame monitoring.

7.8 Oil burner pump and oil filter

The oil burner pump is a self-suctioning gear pump which is con-
nected as a two-strand pump through a venting oil filter. Suction
filters and oil pressure controllers are integrated in the pump.
To protect the oil pump, either insert the enclosed
micro-replacement filter insert MC-7, (
short filter cups or the MC-18, (
filter cups in the ventilation oil filter. Only use paper fil-
ters of maximum 25 μm.
7 x Oil burner
4 Earth connection
5 Ignition connection (input)
15 60 13) for
15 60 14) for long
37