Mounting Icepack to Chassis -
The above tank mounting kit consists of two L shaped brackets
and two 385mm long pieces of 75x8 equal angle. In its simplest
form the two L brackets can be bolted to the chassis with
an outside measurement of 385mm and a vertical distance of
approx. 150mm from the top of the fuel tank to the top of
the L brackets. The L brackets should be attached with their
gussets to the outside so that they don't interfere with the
muffler. Two ½ inch high tensile bolts per L bracket
are sufficient for attachment to the chassis. The distance
of 150mm above the tank is to allow clearance for the muffler.
The 78x8EA pieces can then be bolted to the ends of the L
brackets using one ½ inch bolt each end to form a flat
platform which the Icepack can be bolted down to.
Many variations of the above are possible to overcome problems
such as the L brackets lining up with tank J brackets. The
spacing of the L brackets is not critical as the Icepack only
locates on the 75x8EA that are bolted on each end. It is therefore
possible to position the L brackets anywhere on the chassis
and use the 75x8EA to span between the mounting points. It
may be necessary to source longer pieces of angle to achieve
this. The only complication that this may cause is if the
L bracket interferes with the placement of the muffler. The
muffler may be remote mounted elsewhere if required.
The Icepack unit can be placed on top of the platform to
mark the four mounting holes onto the 75x8EA. These holes
should be drilled to 3/8 inch. Consideration should also be
given to the placement of the muffler in that it may interfere
with the top inside edge the L bracket. If the muffler flange
plate hits the L bracket on the inside edge (it will hit by
25mm if the L brackets were placed 385mm apart) then the inside
edge should be cut back at the location where the muffler
flange plate hits it to give clearance. The unit can then
be bolted to the platform using the bolts and square rubber
washes as supplied.
Mounting the Evaporator in the Sleeper -
The evaporator assembly can be attached to the floor of
the sleeper using six bolts or six 12-20 tek screws. The air
can be ducted using 90mm stormwater pipe fittings to a vent
box.
Fuel System -
The only hoses that need to be connected are the fuel pick
up and return lines. The fuel pick up line is the hose that
is attached to the fuel filter inside the Icepack. This hose
should be attached to the fuel spear in the top of the tank.
The return line is attached to the top bung in the end of
the tank.
Electrical System -
The system is wired so that the Icepack unit and the evaporator
can be plugged into the control panel (the evaporator plug
connectors are painted black) and the system will work. This
means that to wire the system together extension leads of
the seven core flex need to be made to join the components
together.
Power from the batter needs to be supplied to the heavy orange
lead that is attached to the back of the starter motor and
an earth lead should be connected from a bolt on the motor
to the truck chassis.
Air Conditioning System -
The evaporator is connected to the Icepack unit with a No.10
hose, which goes to the compressor inlet with a 90 degree
fitting, and a No.6 hose, which connects to the outlet of
the receiver dryer also with a 90 degree fitting. Inline service
ports should be connected in these lines at a convenient location.
50 ml of Sanden SP10 pag oil should be introduced to the system.
The system should be gassed using R134a to a high side pressure
which correlates to the temperature given by the temperature
of the day plus 20 deg.C plus 10% (or (T+20)x1.1 ). If the
site glass of the receiver dryer clears before this pressure
is reached then the system is full of gas at this point.
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