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2 low fuel pressure interface connector, Fig. 4-3 low fuel pressure switch interface, Low fuel pressure interface connector – Alpha Technologies AlphaGen 5.0kW Auxiliary Power Unit User Manual

Page 68: Fig. 4-3, Low fuel pressure switch interface, Interconnection

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4. Interconnection

68

031-132-B0-001 Rev. A

TM

©2000

4.3

Connectors, continued

4.3.2 Low Fuel Pressure Interface Connector

The interface control is a 2 pin Mini Mate N’ Lok connector (Near gas

solenoid). See Fig. 4-1 for location.

Pin 1 = +12VDC activates (opens) solenoid ONLY when APU is running.

Controlled by APU engine ON command.

Pin 2 = Solenoid common (negative) connection.

Pin

Description

Function

1 Low Fuel Pressure Sensor Contact

CLOSED (LOW signal)

denotes Low Fuel Pressure

(LPV Versions only)

2 Low Fuel Pressure Common

Return signal path for sensor

/)3

72

(&0

)520

/2: )8(/

6(1625

5HDU YLHZ ZLUH VLGH

Fig. 4-3 Low Fuel Pressure Switch Interface

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