Suggested Setup For Heater Operation Test; Wiring Connections For Heater Operation Test - Piper Navajo Chieftain PA-31-350 Service Manual

391
FUEL IN
(FROM PUMP)
NAVAJO CHIEFTAIN SERVICE MANUAL
1. COMBUSTION AIR MANOMETER
2. COMBUSTION AIR PRESSURE SWITCH
3. VENT AIR BLOWER
4. DRAIN
5. TERMINAL
STRIP
6. HEATER
7. COMBUSTION AIR BLOWER
- 24" MIN.
/7
6" APPROX. -
.10
8. VENTILATING AIR MANOMETER
9. THERMOMETER
10. OVERHEAT (LIMIT) SWITCH
11. CYCLING SWITCH
12. EXHAUST OUTLET
13. DUCT
14. DUCT SWITCH
2.25" DIA. ORIFICE
3
28 V
12
Figure 13-19. Suggested Setup for Heater Operation Test
C490
IGNITION UNIT
16
CYCLING
HEATER CIRCUIT
COMBUSTION AIR
PRESSURE SW
202- 6
FUEL
VALVE
R
N
FILTER
Figure 13-20. Wiring Connections for Heater Operation Test
Reissued: 9/23/80
HEATING AND VENTILATING SYSTEM
4 C18