24
TK 56171-2-OP-EN
box. It is clearly visible through an opening in the lower roadside service
door.
See Operating Instructions for more information about the SR-4 Controller.
Depending on the air temperature in the trailer, as sensed by the
microprocessor Base Controller, the unit will typically operate in one of the
following modes:
Diesel Operation
In diesel operation, the microprocessor will select the operating mode from
the following:
•
High Speed Cool
•
Low Speed Cool
•
Low Speed Modulated Cool
•
Null (CYCLE-SENTRY operation only)
•
Low Speed Modulated Heat
•
Low Speed Heat
•
High Speed Heat
•
Defrost
Electric Operation
In electric operation, the microprocessor will select the operating mode from
the following:
•
Cool
•
Modulated Cool
•
Null (CYCLE-SENTRY operation only)
•
Modulated Heat (Hot Gas only)
•
Hot Gas Heat
•
Full Heat (Hot Gas and Electric Heat)
•
Defrost (Hot Gas and Electric Heat)
CYCLE-SENTRY
™
™
Start-Stop Controls
The CYCLE-SENTRY Start-Stop fuel saving system provides optimum
operating economy.
