Flow Control and Indication - Component Location R Figure 002B
R 1EFF : 401-499, 1 21-51-00Page 12 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 101-105, 151-199,

 -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF.
 -------------------------------------------------------------------------------4HB RELAY-MIXER FLAP 103VU 21-51-00 5HB SELECTOR PACK FLOW 30VU 21-51-00 6HB P/BSW PACK 2 30VU 21-51-00 7HB P/BSW PACK 1 30VU 21-51-00 8HB VALVE-FLOW CTL, P2 192 192KB 21-51-51 9HB SENSOR-PRESSURE, P2 192 192KB 21-51-11 10HB SENSOR-PRESSURE, P1 191 191KB 21-51-11 11HB VALVE-FLOW CTL , P1 191 191KB 21-51-51 12HB RELAY-PACK CLOSE, RH 96VU 21-51-00 13HB RELAY-PACK CLOSE, LH 95VU 21-51-00 14HB RELAY-FCV DISAGREE, RH 96VU 21-51-00 15HB RELAY-FCV DISAGREE, LH 95VU 21-51-00 16HB RELAY-ENGINE START 96VU 21-51-00 17HB RELAY-ENGINE START 95VU 21-51-00 20HB ACTUATOR-MIXER FLAP 132PW 137 825 21-51-52 21HB RELAY-MIXER FLAP DISAGREE 93VU 21-51-00 100HM FILTER-OZONE, P1 191 191BB 21-51-41 101HM FILTER-OZONE, P2 192 192FB 21-51-41

R **ON A/C 051-099, 106-149, 201-299,
 4HB RELAY-MIXER FLAP 103VU 21-51-00 5HB SELECTOR PACK FLOW 30VU 21-51-00 6HB P/BSW PACK 2 30VU 21-51-00 7HB P/BSW PACK 1 30VU 21-51-00 8HB VALVE-FLOW CTL, P2 192 192KB 21-51-51 9HB SENSOR-PRESSURE, P2 192 192KB 21-51-11 10HB SENSOR-PRESSURE, P1 191 191KB 21-51-11 11HB VALVE-FLOW CTL , P1 191 191KB 21-51-51 12HB RELAY-PACK CLOSE, RH 96VU 21-51-00 13HB RELAY-PACK CLOSE, LH 95VU 21-51-00 14HB RELAY-FCV DISAGREE, RH 96VU 21-51-00 15HB RELAY-FCV DISAGREE, LH 95VU 21-51-00 16HB RELAY-ENGINE START 96VU 21-51-00 17HB RELAY-ENGINE START 95VU 21-51-00 20HB ACTUATOR-MIXER FLAP 132PW 137 825 21-51-52 21HB RELAY-MIXER FLAP DISAGREE 93VU 21-51-00
R
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-51-00Page 13 1201-299, 1Aug 01/05 1 1 1CES 1R **ON A/C 301-399,

 -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF. -------------------------------------------------------------------------------
4HB RELAY-MIXER FLAP 103VU 21-51-00 5HB P/BSW ECON FLOW 30VU 21-51-00 6HB P/BSW PACK 2 30VU 21-51-00 7HB P/BSW PACK 1 30VU 21-51-00 8HB VALVE-FLOW CTL, P2 192 192KB 21-51-51 9HB SENSOR-PRESSURE, P2 192 192KB 21-51-11 10HB SENSOR-PRESSURE, P1 191 191KB 21-51-11 11HB VALVE-FLOW CTL , P1 191 191KB 21-51-51 12HB RELAY-PACK CLOSE, RH 96VU 21-51-00 13HB RELAY-PACK CLOSE, LH 95VU 21-51-00 14HB RELAY-FCV DISAGREE, RH 96VU 21-51-00 15HB RELAY-FCV DISAGREE, LH 95VU 21-51-00 16HB RELAY-ENGINE START 96VU 21-51-00 17HB RELAY-ENGINE START 95VU 21-51-00 20HB ACTUATOR-MIXER FLAP 132PW 137 825 21-51-52 21HB RELAY-MIXER FLAP DISAGREE 93VU 21-51-00

R **ON A/C 401-499,
R 5HB P/BSW ECON FLOW 30VU 21-51-00 R 6HB P/BSW PACK 2 30VU 21-51-00 R 7HB P/BSW PACK 1 30VU 21-51-00 R 12HB RELAY-PACK CLOSE, RH 96VU 21-51-00 R 13HB RELAY-PACK CLOSE, LH 95VU 21-51-00 R 14HB RELAY-FCV DISAGREE, RH 96VU 21-51-00 R 15HB RELAY-FCV DISAGREE, LH 95VU 21-51-00 R 16HB RELAY-ENGINE START 96VU 21-51-00 R 17HB RELAY-ENGINE START 95VU 21-51-00 R 20HB ACTUATOR-MIXER FLAP 132PW 137 825 21-51-52 R 23HB UNIT-FLOW CTL, P1 192 192KB 21-51-51 R 23HB1 SENSOR-PRESSURE, P1 191 191KB 21-51-11 R 23HB2 SENSOR-Differential Pressure, P1 191 191KB 21-51-11 R 24HB UNIT-FLOW CTL, P2 191 191KB 21-51-51 R 24HB1 SENSOR-PRESSURE, P2 192 192KB 21-51-11 R 24HB2 SENSOR-Differential Pressure, P2 191 191KB 21-51-11
R
R 1EFF : 301-399, 401-499, 1 21-51-00Page 14 1 1 Aug 01/05 1 1 1CES 1

 **ON A/C ALL
 3. System Description__________________
 **ON A/C 001-049, 101-105, 151-199,
 (Ref. Fig. 003) 
R  **ON A/C 051-099, 106-149, 201-299,
 (Ref. Fig. 003A) 
R  **ON A/C 301-399,
 (Ref. Fig. 003B) 
R  **ON A/C 401-499,
R  (Ref. Fig. 003C) 
**ON A/C 001-049, 101-105, 151-199,
 A. Flow Control Valve The flow control valves 11HB (8HB) are installed upstream of the air conditioning packs 10HM (11HM). The flow control valves control the quantity of air supplied from the pneumatic system to the air conditioning packs. They control the airflow fully pneumatically depending on the flow demand and the bleed pressure. The airflow through the flow control valves is selected by the PACK 1 and/or the PACK 2 pushbutton switches. The percentage of airflow through the flow control valves is selected by the PACK FLOW selector switch 5HB. The PACK FLOW selector switch, which is located on the AIR COND panel 30VU, has three positions: - the NORM position, which sets the flow control valve to 100% of the normal airflow, - the LO position, which sets the flow control valve to 80% of the normal airflow. 

R 1EFF : ALL 1 21-51-00Page 15 1 1 Aug 01/05 1 1 1CES 1

 Air Supply Regulation
　
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