Carrier 69NT40-561-300, Operation And Service Manual

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3–5 T-365
3.1.6 Control Box Section
The control box ( Figure 3.5 ) includes: the manual operation switches, circuit breaker (CB-1), compressor, fan and
heater contactors, control power transformer, fuses, key pad, display module, current sensor module, controller
module and the communications interface module.
3.1.7 Communications Interface Module
The communications interface module is a slave module which allows communication between the refrigeration
unit and a ship system master central monitoring station. The module will respond to communication and return
information over the ships main power line. Refer to the master system technical manual for further information.
Figure 3.5 Control Box Section
1. Compressor Contactor - CH
2. Compressor Phase A Contactor - PA
3. Compressor Phase B Contactor - PB
4. Heater Contactor - HR
5. Controller/DataCORDER Module (Controller)
6. Remote Monitoring Receptacle
7. Start-Stop Switch, ST
8. Controller Battery Pack (Standard Location) 9. Control Transformer
10. High Speed Evaporator Fan Contactor - EF
11. Low Speed Evaporator Fan Contactor - ES
12. Condenser Fan Contactor - CF
13. Circuit Breaker - 460V
14. Current Sensor Module
15. Condenser Fan Low Speed - LC
16. Condenser Fan (High Speed Shorting) - FS
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