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4.4
The Refrigeration Circuit
The compressor discharges high pressure, high temperature gas into the back panel condenser circuit first,
returning via the oil cooler in the compressor and entering the side condenser in the cabinet by way of the
base tube. This tube runs from the compressor compartment forward to the front bottom edge of the
cabinet, returning down the left hand side to be connected to the left hand side condenser coil.
A loop from this condenser coil forms the cross rail mullion on dual temperature cabinets. The condenser
then continues across the top front edge of the cabinet to form the right hand side condenser entering the
filter drier, which is mounted vertically in the unit compartment.
Now the high-pressure gas has been condensed, the liquid refrigerant flows through the capillary tube
entering the evaporator mounted in the freezer compartment. The liquid refrigerant then boils off due to the
low suction pressure applied to within the evaporator from the compressor. The heat-laden vapour is drawn
back to the compressor by way of the suction line to start the cycle all over again.
The above information relates to the cabinet, not the drawing below.
SINGLE EVAPORATOR TWIN FAN SYSTEM
Diagram 4.4
4.5
Evaporator
The evaporator on R134a models is of the Fin and Tube type with the expansion and suction inlet/outlet on
the left hand side. The defrost element is fitted to the left and right hand end plates of the evaporator and
clamped into position.
Diagram 4.5.1
Summary of Contents for 635 Active Smart
Page 1: ...321144 Service Manual 635 680 790 900 Active Smart Refrigerator Freezer R134a R600a Systems...
Page 2: ...321144 2...
Page 96: ...321144 96 Photo 12 22 5...
Page 100: ...321144 100 Diagram 12 25...
Page 108: ...321144 108 13 11 Embraco Compressor Fitted With External Overload Diagram 13 11...
Page 114: ...321144 114 14 2 Non Ice Water Models Wiring Diagram...
Page 116: ...321144 116 14 4 Ice Water Models Wiring Diagram...
Page 117: ...321144 117 14 5 900 Models Power Control Module Wiring Connections Reciprocating Compressor...
Page 118: ...321144 118 14 6 900 Models Wiring Diagram Reciprocating Compressor...
Page 119: ...321144 119 14 7 900 Models Power Control Module Wiring Connections VC Compressor...
Page 120: ...321144 120 14 8 900 Models Wiring Diagram VC Compressor...
Page 121: ...321144 121 14 9 B Model Wiring Route Diagram 14 9...
Page 122: ...321144 122 14 10 T Model Wiring Route Diagram 14 10...
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