Technical Information 9-17
PA-1628Operator's ManualH3-45 COACH
FUEL SYSTEM
Polyethylene 222 US gallons (840 liters) fuel tank
located in middle of second baggage bay (heating
and a/c section)
l Anti-spill device.
l Two safety filler caps providing filling access
on both sides of the vehicle.
l Pressure relief valve.
l Electric fuel gauge.
l Low level signal at 22 US gallon (83 liters)
l Primary filter 25 microns (standard).
l Primary fuel filter with electrical water
indicator (Volvo D13).
l Fuel Pro 382 filter available as an optional
primary filter.
l Secondary filter 3 to 5 microns.
l Shut-off valve on fuel supply line.
l Provided with filling access on both sides of
the coach
EXHAUST SYSTEM
One all stainless steel exhaust & aftertreatment
system including:
l Catalylic converter to reduce NOx.
l Aftertreatment system made of a DPF
(Diesel Particulate Filter), DOC (Diesel
Oxidation Catalyst) and SCR system. Noise,
vibration and heat insulated. This ATD is
mounted to the vehicle structure and is
accessible through an exterior access door.
l Tail pipe diffuser and rain deviation device.
l Exhaust pipe with Insulation and a flexible
section.
l Exhaust to rear rooftop left hand corner.
l Diesel exhaust fluid (DEF) tank (60 liters) and
injection system.
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.
Optionally, condensers installed in the overhead
storage compartments provide cool air to the seated
passengers from the overhead registers.
CENTRAL HVAC SYSTEM
Air conditioning
capacity
9 tons
Refrigerant type 134A
Heating capacity 150 000 Btu/h
Air flow 2 600 cfm (73,6m
3
/min)
Air flow, overhead
compartment, opt.
450 cfm (12,7m
3
/min)
COMPRESSOR (central HVAC sys-
tem)
Number of cylinders 4
Operating speed 500 to 3500 rpm
Oil capacity 2.8 US quarts (2.6 liters)
Approved oil Bitzer BSE55 (POE)
NOTE
The above oils are suitable for use with
reciprocating compressors using refrigerant R134a
and with evaporator temperatures above 40°F (-
40°C).
OIL SPECIFICATIONS
Oil specifications for the vehicle's systems.
ENGINE
For the Volvo D13M engine, we recommend using
SAE 10W-30 “Volvo Premium Motor Oil VDS-4.5” or
other Volvo approved VDS-4.5 oils.
Volvo VDS-4.5 oils exceed API service category
CK-4 oils.
ALLISON TRANSMISSION
Allison Transmission recommends the following
fluids:
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