Perkins 4012TESI Series, User Handbook Manual, Page: 54 / 57

4012/16 (GAS) MINNOX ENGINE WIRING DIAGRAM OF STANDARD PROTECTION
PACK AND OPTIONAL BRITISH GAS COUNCIL PROTECTION EQUIPMENT
50 4012/16 Gas, February 1998
Key
(Fig. 39)
1. Standard fitted equipment
2. Magnetic pick-up
3. Engine flywheel
4. Two switch speed unit
5. Switch 2 over speed
6. Switch 1 speed 600 rpm
7. Engine terminal box
8. NOTE:
1. High manifold gas pressure and gas
spitback can be on the same fault
channel.
2. Manifold
out of balance switch
gauges can be earth return type.
9. Left/right banks engine fault switches.
10. Water temp.
11. Oil press
12. Left/right banks manifold out of balance
switch gauges
13. Left/right banks high manifold gas
pressure fault switches
14. Optional equipment
15. Left/right
banks gas spitback fault
switches
16. Low gas pressure fault switch
17. Gas solenoid valves not normally
supplied
by Perkins can be four off
depending on gas pipe work arrangement
18. Energised to run gas line solenoid
valves
19. Low water level fault switch
Fig. 39