King Air 300 Copilot's Switch Panel

King Air Copilot's Switch Panel

1 Cabin Altitude / Cabin Differential Warning Test Switch. This is a momentary switch. It will return to its center position (OFF) automatically. [not simulated]
2 Window Defog Switch [not simulated]
3 Overspeed Warning Test Switch. This is a momentary switch. It will return to OFF-position automatically. [not simulated]
4 Stall / Landing Gear Warning Test Switch. This is a momentary switch. It will return to its center position (OFF) automatically. [not simulated]
5 Manual Temperature Increase/Decrease Switch. When the air conditioner is operated in "Manual Cool" or "Manual Heat" mode, this switch can be used to increase/decrease the cooling/warming effect.
6 Vent Blower Switch. This switch has three positions: high, low and auto. Lower setting will provide slightly slower cabin warming/cooling rate.
7 Environmental Bleed Air Switch. Two positions, normal and auto. Use normal-mode if operating air-conditioner manually.
8, 9 Bleed Air Valve Switches, Left and Right. These switches have three positions: open, environment off, pneumatics and environment off.
Open: Engine bleed air is provided for both the pneumatic and environmental (pressurization and air conditioning) system.
Environment off: Engine bleed air is provided to the pneumatic system only.
Pneumatics and environment off: Engine bleed air valves are shut and no bleed air provided.
10 Aft Blower Switch. Passenger air vent fan master control. Enabling will slightly increase air conditioner effectivity and passenger comfort.
11 Electric Heater Switch. Will provide additional heating for faster cabin temperature rise.
12 Aft Heater Switch. Cabin electrical heater. Will provide additional heating for faster cabin temperature rise.
13 Cabin Temperature Control Knob. This is used to set the desired cabin temperature.
14 Cabin Temperature Mode Selector Knob. This knob has four positions: manual cool, manual heat, off and auto.
Manual Cool: Air conditioner will provide cool air trough vents.
Manual Heat: Air conditioner will provide hot air trough vents.
Off: No air conditioning provided.
Auto: Air conditioner will maintain a set air temperature.
15, 16 Engine Fire Detector/Extinguisher Test Switches, left and right. These are momentary switches. They will return to center position (OFF) automatically. [not simulated]
17 Gyro Suction Indicator. Displays the suction pressure used to maintain vacuum in gyros.
18 Pneumatic Pressure Gauge.
19 Cabin Temperature Indicator.
20 Flight Time Calculator.
21 Oxygen Supply Pressure Gauge.
22 Yoke restore click area.