-------------
Rolls-Royce
& Bentley
-------
CJ
Air
Conditioning
System
Manual
EVAPORATOR
MATRIX
2
EXPANSION
VALVE
l
THERMOSTAT
CONTROL
SWITCH
~
BLOWER
MOTOR
Fig. 4 Evnpore.tor Unit with Cover Removed
This creates an electrical circuit to a normally
closed solenoid valve coil, causing the valve to open.
The valve, located under the bonnet and adjacent to
the
right-hand valance,
is
connected to the condenser,
and
to a
•r
connection on the suction side
of
the
compressor.
As
the
valve opens, high pressure
vapour from the condenser is mixed with the low
pressure vapour from the evaporator. The resultant
pressure raises the evaporator pressure and corres-
pondingly increases the evaporator temperature. The
thermostat
is
governed for an approximate 5°F.
variation
at
any setting.
If
the evaporator temperature
varies more than 5°F., the thermostat points will
open, simultaneously closing the solenoid by-pass
valve.
Sution
Cl
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