Cooling System; Fuel System; Heating And Air Conditioning - PREVOST X3-45 Commuter 2020 Operating Manual

FRONT I-BEAM AXLE
Right
2.0°
caster
Left
2.0°
caster
Total
0.04°
toe
DRIVE AXLE - ZF A132
Minimum
value
Thrust
angle
0.15°
Total
toe
toe-in
TAG AXLE
Minimum
value
Thrust
-0.02°
angle*
0.08°
Total
toe
toe-in
(*) Use the drive axle as reference

COOLING SYSTEM

Extra capacity, Aluminum radiator and
l
aluminum charge air cooler arranged side by
side.
Eight 24V speed controlled by ECU electrical
l
cooling fans.
Radiator fans: pusher type, 6 high power 24
l
Volts electrical fans, 12 inches diameter.
CAC fans: pusher type, 2 high power 24
l
Volts electrical fans, 12 inches diameter.
Rubber insulated from the body.
l
Expansion & recovery tanks above radiator
l
and remote mounted.
System pressure 15 psi.
l
Coolant: - Fleet Charge Fully formulated
l
Coolant (50/50 premix antifreeze mixture).
DOB 1300-1556
2.75° 3.5°
2.75° 3.5°
0.06° 0.08°
Nominal Maximum
value value
±0.11°
0.15°
0°
toe-out
Nominal Maximum
value value
0 0.02°
0.02°
0°
toe-out
PA-1639 Operator's Manual 2020 X3-45 Commuter
Technical Information 9-9
Thermostat: 82 / 92 °C (180 / 198 °F) –
l
(cracking / fully open).
Full system capacity 27.5 US gal (104 l).
l
Coolant filter with Supplemental Coolant
l
Additive (SCA).

FUEL SYSTEM

Steel 189 US gal. (716 l) fuel tank centrally
located.
Anti-spill device.
l
Safety filler cap on right side of coach
l
(Emco-Wheaton fuel filling system).
Pressure relief valve.
l
Electric fuel gauge.
l
Low level signal at 26 US gallons (98.4
l
liters).
Fuel Pro 382 25 microns heated primary
l
filter (with water-in-fuel sensor).
Secondary filter 3 to 5 microns.
l
Shut-off valve on fuel supply line.
l

HEATING AND AIR CONDITIONING

A large capacity central HVAC system provides
enough conditioned and filtered air for all climatic
conditions. Fresh air is drawn into the system
from the evaporator compartment on driver's side
of the vehicle. Return air is taken from the middle
of the vehicle. The driver's heater and defogger
are controlled separately from the passenger's
unit. An air mixture selector enables air to be
drawn into the system from outside the vehicle or
recirculated.
CENTRAL HVAC SYSTEM
Air conditioning
9 tons
capacity
Refrigerant type 134A
Heating capacity 150 000 Btu/h
Air flow 2 600 cfm (73,6 m
Air flow, overhead
450 cfm (12,7 m
compartment.
3
/min)
3
/min)