A320 CH36

1. STAGE 5 IS USED FOR IP AND 9 FOR HP
2. BMC (BLEED MONITOR COMPUTOR) CONTROLS REGULATION AND DETECTS LEAK S
3. BMC1 FOR ENG1 AND BMC2 FOR ENG2 AND APU
4. OPV (OVER PRESS VALVE) IS DOWNSTREAM OF PRV (PRESS REGULATOR VALVE) TO PROTECT OVER PRESSURE
5. HP GND UNIT CONNECTS TO L/H
6. ANY LEAK DET CAUSES XFEED AND PRV CLOSE
7. PRV (BLEED VLV) CLOSED IN:

LEAK,
PRECOOLER O/H,
OVER PRESS,
START VLV OPEN

8. FAV IS IN 12 O’CLOCK
9. XFEED VLV IS IN AIR COND BAY
10.BMC’S ARE  IN 90VU

B747 CHAPTER 36

36

1. HI STAGE TAPPED FROM 15TH STAGE

2. HP VLV CLOSED IF PRESS>90 PSI AND LIT OFF

3. OPEN LIT ON IF HP OPEN MORE THAN 7 DEG

4. A RELIEF VLV OPEN AT 120 PSI IF HP FAILED

5. WHEN GND START : PYLON VLV AND START VLV OPEN, HI STAGE OFF, REVERS FLOW  

       VLV BYPASSED

6. CONT VLV DOWN STREAM OF PRECOOLER WILL OPEN AT 350 DEG F

7. A THERMAL FUSE MELT AT 650 DEG AND HP VLV CLOSE

8. O/H LIT WILL ON IF PYLON VLV CLOSE IN: FIRE HANDLE OP, 490 DEG

9. PYLON VLV HAS 2 SOL: FRO ROTARY SW, FOR GND START

10. APU ISO VLV: CONT BY 28VDC FROM BAT BUS, OP BY 115VAC

11. A HI STAGE CONT VLV CONT THE HP VLV ON R/H OF ENG (HP VLV IS L/H)

12. PRESS IND HAS 2 SYN FOR L/H AND R/H MANIFOLD TX

13. PRESS TX LOCATED UPSTREAM OF WING ISO VLV IN W/W

14. PRESS TX HAS 2 PORT WHICH ONE OF THEM VENT TO AMBIENT

15. 2 ISO VLV LOCATED IN AIR COND BAY AND APU ISO VLV IN L/H W/W