16 SECTION 50 -- CAB AIR CONDITIONING SYSTEM -- CHAPTER 1
603.54.471.00 -- 11 -- 2004
11
Condenser
In the condenser the refrigerant is transformed from
a vapour to a liquid state.
As this occurs by transfer of the heat from the refrig-
erant to the ambient air, the condenser functions in a
similar way to the engine radiator.
The condenser consists of a series of tubes through
which the refrigerant circulates and a finned block
which is pressed onto the tubes to covers them com-
pletely in thin aluminium fins to help dissipate heat to
the ambient air ..
The condenser is installed in front of the engine cool-
ing radiator so as to benefit from the air flow caused
by forward motion of the tractor .
Receiver--drier
The receiver--drier, installed between the condenser
and the expansion valve, performs two basic func-
tions, acting as a filter to remove dirt and moisture
from the refrigerant and as a temporary storage con-
tainer during variable charge stages.
Water in the system can cause corrosion and dam-
age to system components.
For this reason the filter contains substances to ab-
sorb humidity.
Solid contaminants, such as sand, metal particles re-
sulting from wear of compressor components, ox-
ides, particles from the pipes, etc., can cause dam-
age to the system and therefore must be removed by
suitable filters.
Receiver--drier
1. Sight glass.
2. Upper screen.
3. Disc.
4. Drying agent.
5. Lower screen.
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