User manual

Piper PA-31T Cheyenne X
Aerosoft GmbH 2007
52 53
52 53
Environmental Controls - Copilot
Environmental Controls - Cheyenne I, IA and II
1: Windshield Wiper control knob 7: Dehumider Control switch
2: Heater Fuel Flow control switch 8: Oxygen Supply Pressure gauge
3: Environmental Control MODE switch 9: Fuel totalizer
4: Environmental Control MASTER switch 10: Defroster
5: Cabin Temperature control knob 11: Yoke clickspot
6: Manual Mode switch
The cabin comfort control panel contains all the controls needed to
operate the heating, cooling and dehumidification system. The MAS-
TER switch (4) controls the heater, air conditioner and cabin recircu-
lating air blower. The MODE switch (3) is normally used in the AUTO
position, and the operator only needs to select the proper temperature
level with the knob marked TEMP (5). The MODE switch (3) MANUAL
position is for standby use in case of a malfunction of the automatic
mode only. When the MODE switch (3) is in MANUAL position, the
heater may be turned on or off as desired. For manual operation, the
MANUAL switch (6) should be placed in heater HTR position, and the
heater turned on or off by use of the HEATER FUEL (2) switch.
The DEHUMIDER switch (7) provides means to decrease humidity when
the MODE switch (3) is in the automatic position. The HEATER FUEL
toggle switch (2) controls the flow of fuel to the heater fuel pump. It
must be turned on for heater operation.