Installation and Operation Manual Owner manual

745-020-B0-003, Rev. C

Fig. 8-3, Gas Solenoid Interface Connector

Fig. 8-4, Charger Control Interface Connector

8.4 48V Charger Module Control Interface Connector

The Charger Module – Control Interface Connector is connected between the

charger module and ECM with Sense/Power leads connected to the APU output DC bus. The

interface control is a 4-pin (2x2 row) Universal Mini Mate-’N’-Lok style male connector.

8.0 Interconnection, continued

8.3 Gas Solenoid Interface Connector

Vapor

Fuel

Solenoid

FROM APU

Connection

is not

polarized

Pin Description Function

1 ECM Charger Control

(+) Yellow Wire

Connects pins 1 and 2 together, turning the charger

ON, i.e. Closed (LOW signal).

2 Inverter Battery

(+) Red Wire

Input power to charger module, operates on 48VDC

battery pack to charge ignition battery.

3 ECM Charger Control

Orange Wire

ECM Turns charger ON by applying a LOW signal to

this pin (referenced to ignition battery negative).

4 Inverter Battery (-)

Black Wire

NEGATIVE Input power to charger module, operates

on 48VDC battery pack to charge ignition battery.

REAR

VIEW

Pin Description Function

1 Gas Solenoid +12V +12VDC supplied to Gas Solenoid only when APU is ON

(Running). APU Shuts OFF gas supply to cabinet during

any fail safe or fault condition.

2 Gas Solenoid Common Return path for Gas Solenoid.