PREVOST X3-45 COMMUTER User Manual

SECTION 06: ELECTRICAL
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual Section 06 revised release October 2021
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4.2.1 Test Sequence – Coaches
Test Sequence – Coaches
Go to the condenser compartment
• The condenser fans start. Speed will gradually
increase to maximum speed.
• The passenger's unit refrigerant solenoid valve
activates. The refrigerant solenoid valve of the
overhead compartment A/C system activates.
Then 5 beeps can be heard from the back-up alarm to indicate to go to the engine compartment.
In the engine compartment, the
sequence is as follows
• The main power compartment fan activates for 3
seconds.
• Toilet fan motor starts.
• A/C compressor clutch activates 3 times.
• The compressor unloader activates 3 times.
•
The electric cooling fans start running for 20
seconds.
Then 5 beeps can be heard from the back-up alarm to indicate to go to the evaporator compartment.
In the evaporator compartment
• Evaporator fan motor runs at speed
1 for 3
seconds then runs at speed 2 for 2 seconds.
• Hot water pump starts running for 5 seconds and
hot water pneumatic valve cycles 3 times.
5 beeps from the back-up alarm indicate to get to the driver’s area inside the vehicle.
Inside the vehicle
• The driver's HVAC unit refrigerant solenoid valve
cycles 3 times and the hot water pneumatic
valve cycles 3 times also.
• Left and right overhead compartment fans start
running one after the other for 5 seconds.
• The upper windshield defroster (optional) starts
running.
To exit the electric motors test sequence, press ESCAPE button, select TERMINATE TESTS &
FORCED STATES submenu and then press ENTER button twice.

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in