PREVOST X3-45 VIP 2017, Owner'S Manual

Page: 180 / 212

Technical Information 9-10
COOLING SYSTEM
•
Extra capacity aluminum radiator and
aluminum charge air cooler arranged side by
side.
•
24V ECU controlled electrical cooling fans,
total of eight, six over radiator side and two
on charge air cooler.
•
Rubber insulated from the body.
•
Expansion tank above radiator and remote
mounted.
•
System pressure 14 psi.
•
185
o
F thermostat.
•
Full system capacity 22 us gal (85 l).
•
Coolant filter.
FUEL SYSTEM
208 US gallons polyethylene polyethylene
equipped with:
•
Anti-spill device.
•
Safety filler caps, providing filling access on
both sides of vehicle.
•
Pressure relief valve.
•
Electric fuel gage.
•
Fuel cooler.
•
Low level signal at 26 us gallon/98 liters.
•
Primary filter 25 microns (standard).
•
Fuel pro 382 filter available as an option as a
primary filter.
•
Secondary filter 3 to 5 microns.
•
Shut-off valve on fuel supply line.
EXHAUST SYSTEM
One all stainless steel exhaust aftertreatment
system including:
•
Catalylic converter to reduce NOx.
•
FleetGuard assembly made of a DOC (Diesel
Oxidation Catalyst and a DPF (Diesel
Particulate Filter). Noise, vibration and heat
insulated. This assembly is mounted to the
bus structure and is accessible through an
exterior access door.
•
Tail pipe diffuser and rain deviation device.
•
Exhaust pipe with Insulation and a flexible
section.
•
Exhaust to rear rooftop left hand corner.
•
Diesel exhaust fluid (DEF) tank (60 liters) and
injection system
HEATING AND AIR CONDITIONING
Two air conditioning systems are available: the
large capacity (central HVAC system) or the
small capacity A/C (small HVAC system).
Vehicles equipped with the large capacity A/C
benefit from a combination heating and cooling
system that provides adequate capacity of
conditioned and filtered air for all climatic
conditions. Fresh air is drawn into the system
from the left (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 central unit. An air mixture
selector enables air to be drawn into the system
from outside the vehicle or recirculated. Driver’s
air provides cooling for the driver’s area only,
maximizing available baggage space for other
uses. The small capacity A/C enables cooling
the driver’s area only.
SMALL HVAC SYSTEM
Air conditioning
capacity
2 tons
Refrigerant type 134a
Air flow 450 cfm (12,7 m
3
/min)
COMPRESSOR (For small HVAC system)
Number of cylinders 7
Operating speed 700 to 6 000 rpm
Oil capacity 6.0 U.S. oz (0,18 l)
Approved oil SP-20 (PAG)
CENTRAL HVAC SYSTEM
Air conditioning
capacity
9 tons
Refrigerant type 134a
Heating capacity 152 000 Btu/h
Air flow 2 600 cfm (73,6 m
3
/min)