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9-4
Schematic Circuit Tracings
Electrical, Refrigeration and
µ
P-D Menu Flow Diagrams
CRR-20 & CRR-40, September 1999
1
When external power is disconnected from unit, microprocessor operation requires an on-board 12 Vdc battery, or an
external 12 Vdc battery connected to the battery jack on Power Module Board inside control box. Then press
SELECT key or connect communications cable to Data Port on bottom of control box.
2
Typical model shown with three evaporator fans.
Microprocessor Awakened from Sleep Mode
1
(when external power is disconnected from unit)
2
Содержание CRR-20
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