AVIATION 325 PITOT - STATIC SYSTEM VACCUM SYSTEM ENGINE INSTRUMENTATION ANNUNCIATOR SYSTEM
PPH = Pounds per Horsepower http://www.epi-eng.com/Prop-Selection.htm
Pitot-Static System OVERVIEW
Pitot-Static System Components Pitot-Static Head
PITOT-STATIC HEAD (1)
PITOT-STATIC HEAD (2)
Pitot-Static System Components Drain
Pitot-Static System Components Alternate Static Source Storm Window Closed Cabin Vents Closed Heater & Defroster On
Vacuum System
Vacuum System Overview
Vacuum System Dry Pump Regulator
Vacuum System Manifold Check Valve
Vacuum System Filter Low Vacuum Switch
Vacuum System Vacuum Gauge
Engine Instruments
Engine Instruments Dual Tachometer Gauge Dual MAP Gauge Left magneto Green Arc 500 to 2700 rpm 14 VDC 3 amp CB on main bus Dual MAP Gauge Intake Port #3 or #4
Engine Instruments Fuel Pressure Gauge Fuel Pump Pressure - Carb Air Pressure .5 PSI to 8 PSI 14 VDC Engine group main bus
Engine Instruments Oil Pressure Gauge Oil Temperature Gauge 14 VDC Engine group main bus Oil Filter Housing temp of oil entering engine 75F TO 245F Oil Cooler (185F) Oil Pressure Gauge 14 VDC Engine group main bus pressure switch in oil line at outlet of oil pump
Engine Instruments Exhaust Gas Temperature Gauge Bimetallic temp probe #1Cylinder Exhaust Manifold Cylinder Head Temp Gauge # 4 Cylinder 200F to 500F 14 VDC Engine group main bus
ANNUNCIATOR SYSTEM
Annunciator System Introduction Components Lights Fault Warning Flasher Seminole Annunciator Lights
INTRODUCTION Warning and caution indicators may be the first indication of trouble or malfunction in some system or component of the airplane
Annunciator System Components Annunciator Panel Press-to-Test Switch Fault Warning Flasher
Annunciator Lights Red Warning - Immediate Attention and Action Yellow (or Amber) Caution - Attention but not Immediate Reaction Green Advisory White - System Status
Fault Warning Flasher If Fault Requires Immediate Attention Appropriate Red Warning Annunciator on Panel Illuminates
Flasher begins Flashing Press to Reset Red Annunciator remains on until fault is corrected or condition no longer exists
Fault Warning System Green or Yellow Annunciator Light will not trigger the fault warning system Some Systems include aural warnings
Seminole Annunciator System
Annunciator Lights Press-to-Test ALT - Amber Alternator Off Line ALT Switch Turned Off Over Voltage Relay
Annunciator Lights VAC -Amber Vacuum Less Than 4.25” Hg
Annunciator Lights OIL - Amber Oil Pressure Less Than 15 PSI
Annunciator Lights LOW BUS - Red Voltage of Alternators Less Than 12.5 V
Annunciator Lights HEATER OVERHEAT - Red Heater Temperature Exceeds 300 to 400o F Safety Switch
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