1. MODULATING BURNERS RL/M Series burner operation

2. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M ELECTRICAL WIRING 1 OIL VALVES I II Return oil pressure switch Return valve Delivery valve Safety valve on delivery side Motor contactor Additional safety valve on return side (only on RL 130/M) 7 6 figures changed on 28-38-50 sizes Min oil P.Sw MotorA min oil P.Sw. Is connected on FS2 version 24 ON FS2 version

3. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 2 OIL VALVES I II 0”

4. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 3 OIL VALVES I 0” II

5. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 4 OIL VALVES I 0” II The control box motor starts to run (if the flame signal is off 0°

6. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 5 OIL VALVES I 0” II 0°-5°

7. The servomotor opens UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 6 OIL VALVES I 5” II The control box stops

8. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 7 OIL VALVES I II 30°

9. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 8 OIL VALVES I II 130° 47”

10. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 9 OIL VALVES I II 47” The control box restart

11. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 10 OIL VALVES I II

12. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 11 OIL VALVES I II 69.5”

13. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 12 OIL VALVES I II 106” 30°

14. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 13 OIL VALVES I II 106”

15. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 14 OIL VALVES I II 108”

16. OIL VALVES UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 15 I II 111” Max 5”

17. OIL VALVES UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 16 I II 116”

18. OIL VALVES UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 17 I II 126”

19. OIL VALVES UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 18 I II >126” 30°

20. OIL VALVES UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 20 I II >126” 130°

21. OIL VALVES UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 21 I II 2nd ==> 1st stage

22. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 22 I II OIL VALVES

23. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TR TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 23 I II OIL VALVES 30°

24. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION I II OIL VALVES 1st stage ==> stand-by TR 24

25. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 25 I II TR

26. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 26 I II TR

27. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 27 I II TR

28. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 28 I II TR

29. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 29 I II TR

30. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 30 I II TR 0°

31. UNMB1NL W1W2 B4 B3 AL CH AL1 Q 621342016NN 8 31 10 225N18239 11 LANDIS LAL 1.25 or LOK 16. III M FR M 10 8 9 2 4 3 1 N L2 L3L1 123 4 PO MAN OFF AUT -+ L1 L2L3 N TS TH/L S2 S1 TA DVRV SDVSRV MC RL 130/M BURNER OPERATION 31 I II TR