21 22 23 26Z 16 17 ITEM NO ui 27 24 OVERBOARD b ii ii II ii 25 20 11 14 13 12 10 8 9 7 Of PRESSURIZED AREA DESCRIPTION 18 20 11 QTY PER AIRCRAFT 1 VALVE, L.P. BLEED AIR CHECK 2 2 VALVE, BLEED AIR PRESSURE REG. & 5/O 2 3 VALVE, BLEED AIR ISOLATION S/O 1 4 VALVE, AIR CONDITIONING SYSTEM SHUTOFF & FLOW CONTROL 2 5 FILTER, CABIN/COCKPIT OZONE 2 6 REFRIGERATION UNIT 2 (a) PRIMARY/SECONDARY HEAT EXCHANGER 4 (b) AIR CYCLE MACHINE (ACM) 2 (c) ANTI-ICE MODULATING VALVE 2 (d) OVERTEMPERATURE SWITCH 2 (e) ACM BYPASS CHECK VALVE 2 (f) ACM BYPASS SHUTOFF VALVE 2 (9) COOLING FAN 2 (h) BYPASS DUCT ASSEMBLY 2 7 VALVE, TURBINE DISCHARGE WATER DRAIN 2 8 VALVE. SERVO AIR PRESSURE REG. 2 9 VALVE, CABIN/COCKPIT TEMPERATURE CONTROL 2 10 SEPARATOR, WATER 2 11 SENSOR, CABIN/COCKPIT DUCT OVERTEMPERATURE 2 12 SENSOR, WATER/SEPARATOR ANTI-ICE CONTROLLER 2 14 13 9 8 7 6f ITEM NO 6b FROM RH SERVO CONTROL SYSTEM/ \ FROM Lli SERVO CONTROL SYSTEM DESCRIPTION 6c 6 ed 6e OVERBOARD 4 5 28 69 6a FAN AIR TO OVERTEMPERATURE L - LIGHT (ON AT 45O°Ft - - I 15 15 I TO VALVE OPENICLOSE I SWITCH LIGHT ON (OPEN) - - - 6b 6c 6 6d 6e OVERBOARD 13 VALVE, CABIN/COCKPIT AIR CHECK 13a VALVE, RAM AIR CHECK 14 VALVE, CABIN/COCKPIT FACE AIR CHECK 15 WATER, SPRAY ASPIRATOR 16 SELECTOR. CABIN/COCKPIT TEMPERATURE 17 CONTROLLER, CABIN/COCKPIT TEMPERATURE 18 SENSOR. CABIN/COCKPIT TEMPERATURE CONTROL 19 SENSOR. COCKPIT TEMPERATURE CONTROL 20 SENSOR. CABIN/COCKPIT DUCT TEMPERATURE ANTICIPATOR 21 MANUAL CABIN PRESSURE 22 CONTROLLER, CABIN PRESSURE 23 TRANDUCER, CABIN PRESSURE 24 VALVE, CABIN AIR OUTFLOW 25 VALVE. CABIN PRESSURE SAFETY 26 EMI FILTER, CABIN PRESSURE CONTROL 27 SWITCH, EMERGENCY CABIN PRESSURE RATE 28 AUXILIARY POWER UNIT (APU) 29 VALVE, APU AIR CHECK 30 NIPPLE, CHECK VALVE & AIR START ASSY QTY PER AIRCRAFT 2 1 2 2 2 2 3 1 2 1 1 1 1 1 1 1 30 1 FAN AIR BLEED AIR STAGE 7th 12th -a- OVERBOARD 7111 121D BLEED AIR STAGE 3 OVERBOARD LEGEND BLEED AIR & AIR COND DISTRIBUTION LINES PNEUMATIC CONTROL SYSTEM ELECTRICAL LINES 01051C01 GUITSTREAM IV MAINTENANCE MANUAL Air Conditioning System — Block Diagram Figure 1 21-00-00 Page 17 April 30/13 GUI USTRFAM lV EFTA01202523