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VOSA054 and 072 Piping and Wiring Connections
VOSA054 and 072 units have two control boards in the
control box and have two gas pipes, two liquid pipes, two
branch pipes and two electronic expansion valves (EXV).
Refrigerant piping
Condensate pipe
(two sets)
EXV B
EXV A
Control board B
Control board A
Terminal block
Figure 28. VOSA054 and 072 Unit Identifi cation
17
The additional boards and piping connections require
special considerations when connecting the piping and
communication wiring.
Inside of Control Box
LED Display
Control box
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