![background image](http://html1.mh-extra.com/html/thermo-king/crr-20/crr-20_maintenance-manual_1104387162.webp)
CRR-20 & CRR-40, September 1999
Electrical, Refrigeration and
µ
P-D Menu Flow Diagrams
Schematic Circuit Tracings
9-3
1
Typical model shown with three evaporator fans.
2
Requires on-board 12 Vdc battery or an external 12 Vdc battery connected to battery jack on Power Module Board
inside control box.
External 12 Vdc Battery Power Supply
1, 2
Summary of Contents for CRR-20
Page 4: ......