4.15.2 Wiring diagram (SQM 40)
6)
!8#0
#8
2-
*
:6*
:6
2546775
Key (Fig. 29)
ASZ
Servomotor potentiometer (optional)
XT1
Burner terminal strip
PA
Air pressure switch
PGM
Max. gas pressure switch
PO
Maximum oil pressure switch
SM
Servomotor
TA
Ignition transformer
XTB
Burner earth
20146011
2/
2)
2
2
**
**
2
2
:!
!
9
Installation
2
!
2
**
:"
!
9
UV
Flame sensor
VP1-2
Gas pilot safety valve
VR
Oil return valve
VRS
Oil return valve
VS
Oil safety valve
X1-X2-X3
Servomotor terminal board
XS1-XP1
Servomotor connection plug-socket
After carrying out maintenance, cleaning or
checking operations, refit the cover and all the
safety and protection devices of the burner.
26
GB
8.
**
9"
9!
85
**
9#
Fig. 29