1. BS 2-3-4/M
INTERMITTENT OPERATION MODE

2. BS 2-3-4/M CONTROL BOX LMG22.233B27 FEATURES: # Undervoltage AC 160 V
# Electrical polarity must be respected
# Flame signals: operation reliable value min 2µA
at beginning max value 0.5µA

3. BS 2-3-4/M CONTROL BOX LMG22.233B27
Control program in the event of fault:
· If a fault occurs, all outputs will immediately be deactivated (< 1 s)
· On restoration of power, a restart will be made with the full program sequence
· If the operating voltage drops below the undervoltage threshold, a restart will be made with the full program sequence
· If there is a premature faulty flame signalÞ Lockout
· If the contact of the air pressure monitor «LP» has welded in the working position, start up will be prevented
and, after 65 seconds, lockout initiated
· If the contact of the air pressure monitor «LP» has welded in the idle position: lockout
at after 52.5 seconds
· If the burner does not ignite by the end of safety time Þ Lockout
· If flame is lost during operation: Þ Lockout
Lockout:
· Lockout cannot be changed and takes place 10 seconds after safety shutdown.
A main voltage failure during that period of time wil lead to a restart.
Resetting:
· When never lockout occurs, the burner control can immediately be reset.
To do this, keep the lockout reset button depressed for a minimum of 0.5 seconds and a maximum of 3
seconds!

4. BS 2-3-4/M SERVOMOTOR SQN 91.570A2793 FEATURES: # Rotation angle 90°
Cam 1
Cam II
Cam IV&III I II IV
III
FEATURES:
# Rotation angle 90°
# Rotation time 24”
# Nominal Torque 2.4 Nm
# Power Consumption 8VA
# Starting/operating current 7/1 A

5. BS/M 1 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 1
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 1 N Ph 6 2 1 3 2 PG VR VS

6. …AND SWITCH ‘ON’ THE ELECTRICAL SUPPLY AUTOMATIC MODE OPERATION...
BS/M
…AND SWITCH ‘ON’ THE ELECTRICAL SUPPLY
CAM I => 90° 2
CAM II => 0°
SWITCH ‘ON’ THE BURNER:
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8
...THEN SELECT
AUTOMATIC MODE OPERATION... S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 1 N Ph 6 2 1 3 2
OPEN THE GAS FIRST... PG VR VS

7. THE CONTROL BOX IS ENERGISED AT # 12
BS/M
CAM I => 90° 3 2
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
THE CONTROL BOX IS ENERGISED AT # 12
OFF IV 7 5 10 8 II
III 1 3 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 1 N Ph 6 2 1 3 2 PG VR VS

8. 2.5” BS/M 3 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20°L N
BS/M
2.5”
CAM I => 90° 3 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1 7 M
…2.5 SECONDS LATER, WE HAVE
TWO OUTPUTS: # 9 & # 3 N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

9. 2.5” BS/M 4 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20°L N
BS/M
2.5”
CAM I => 90° 4 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II
III 1 3 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

10. 2.5” BS/M 5 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20°L N
BS/M
2.5”
CAM I => 90° 5 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II
III 1 3 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

11. 2.5” 2.5”+x BS/M 6 3 M CAM I => 90° CAM II => 0°L N
BS/M
2.5”
2.5”+x
CAM I => 90° 6 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

12. 2.5”+x BS/M 7 3 M CAM I => 90° CAM II => 0°L N
BS/M
2.5”+x
CAM I => 90° 7 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

13. 2.5”+x BS/M 8 3 M CAM I => 90° CAM II => 0°L N
BS/M
2.5”+x
CAM I => 90° 8 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

14. 26.5” BS/M 9 3 M CAM I => 90° CAM II => 0°L N
BS/M
26.5”
CAM I => 90° 9 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

15. …BY THE 90°’s CONTACT OF THE SERVOMOTOR,L N
BS/M
26.5”
CAM I => 90° 10 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV
…BY THE 90°’s CONTACT OF THE SERVOMOTOR,
THE FAN BEGINS TO TURN 7 5 10 8 II 1 3
III 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

16. 26.5” BS/M 11 3 M CAM I => 90° CAM II => 0°L N
BS/M
26.5”
CAM I => 90° 11 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

17. …SEC 52.5: PRE-PURGE IS GOING TO BE FINISHED; NO MORE VOLTAGE AT # 9
BS/M
52.5”
CAM I => 90° 12 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1
…SEC 52.5: PRE-PURGE IS GOING TO BE
FINISHED; NO MORE VOLTAGE AT # 9 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

18. 52.5” BS/M 13 3 M CAM I => 90° CAM II => 0°L N
BS/M
52.5”
CAM I => 90° 13 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

19. BS/M 14 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 14 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

20. BS/M 15 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 15 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

21. BS/M 16 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 16 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

22. …PRE-IGNITION: THE TRANSFORMER IS ENERGISEDL N
BS/M
82.5”
CAM I => 90° 17 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8
…PRE-IGNITION: THE TRANSFORMER IS ENERGISED
TROUGHOUT CAM IV S1
AUT
MAN
OFF IV 5 10 8 II
III 1 12 7 M N I 4 9 31 3 6 11 N M PA P 3 2 1 N Ph 2 1 PG VR VS

23. …IGNITION: SOLENOID VALVES ENERGISED BY # 4
BS/M
85.5”
CAM I => 90° 18 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1
AUT
MAN
OFF IV 5 10 8 II
III 1 12 7 M N I 4 9 31 3 6 11 N M
…IGNITION: SOLENOID VALVES ENERGISED BY # 4 PA P 3 2 1 N Ph 2 1 PG VR VS

24. …IGNITION: THE FLAME MUST BE DETECTED WITHIN
BS/M
<88.5”
CAM I => 90° 19 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8
…IGNITION: THE FLAME MUST BE DETECTED WITHIN
3 SECS S1
AUT
MAN
OFF IV 5 10 8 II
III 1 12 7 M N I 4 9 31 3 6 11 N M PA P 3 2 1 N Ph 2 1 PG VR VS

25. 88.5” BS/M 20 3 M CAM I => 90° CAM II => 0°L N
BS/M
88.5”
CAM I => 90° 20 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1
AUT
MAN
OFF IV 5 10 8 II
III 1 12 7 M N I 4 9 31 3 6 11 N M PA P 3 2 1 N Ph 2 1 PG VR VS

26. 96” BS/M 21 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20°L N
BS/M
96”
CAM I => 90° 21 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 1 3
III 12 1
…SEC 96th; HIGHER FLAME
IS AVAILABLE BY # 5 & # 9 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

27. BS/M 22 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 22 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

28. 96+x” BS/M 23 3 M CAM I => 90° CAM II => 0°L N
BS/M
96+x”
CAM I => 90° 23 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II
III 1 3 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

29. 96+x” BS/M 24 3 M CAM I => 90° CAM II => 0°L N
BS/M
96+x”
CAM I => 90° 24 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

30. 96+x” BS/M 25 3 M CAM I => 90° CAM II => 0°L N
BS/M
96+x”
CAM I => 90° 25 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

31. BS/M 26 3 M CAM I => 90° CAM II => 0° …2nd => 1st STAGEL N
BS/M
CAM I => 90° 26 3
CAM II => 0°
…2nd => 1st STAGE
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II
III 1 3 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

32. BS/M 27 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 27 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

33. BS/M 28 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 28 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

34. BS/M 29 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 29 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

35. BS/M 30 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 30 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

36. … 1st STAGE => STAND-BYL N
BS/M
CAM I => 90° 31 3
CAM II => 0°
CAM IV & III => 20°
… 1st STAGE => STAND-BY TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II
III 1 3 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

37. BS/M 32 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 32 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

38. BS/M 33 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 33 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

39. BS/M 34 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 34 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

40. BS/M 35 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 35 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS

41. BS/M 36 3 M CAM I => 90° CAM II => 0° CAM IV & III => 20° (+)L N
BS/M
CAM I => 90° 36 3
CAM II => 0°
CAM IV & III => 20° TS
TH/L TR S2
(+)
(-) 1 2 5 6 4 3 10 9 8 7
OFF L1 N T1 T2 S3 B4 B5 T6 T7 T8 S1 Z
AUT
MAN 9
OFF IV 7 5 10 8 II 3
III 1 12 1 7 M N I 4 2 9 31 10 3 6 11 N 8 M PA P 3 2 1 N Ph 6 2 1 PG VR VS