Carrier 69NT40-541-306, Операция и обслуживание

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T-354 3–6
3.1.7 Control Box Section
The control box ( Figure 3.6 ) includes the manual operation switches, circuit breaker (CB-1), compressor, fan and
heater contactors, control power transformer, fuses, keypad, display module, current sensor module, controller
module and the communications interface module.
3.1.8 Communications Interface Module
The communications interface module is a slave module, which allows communication with a master central moni-
toring station. The module will respond to communication, and return information over the main power line. Refer to
the master system technical manual for further information.
Figure 3.6 Control Box Section
1. Compressor Contactor
2. Heater Contactor
3. Display Module
4. Communications Interface Module
5. Controller/DataCORDER Module (Controller)
6. Key Pad
7. Emergency Defrost Light
8. Start-Stop Switch
9. Remote Monitoring Receptacle
10. Manual Defrost Switch 11. Controller Battery Pack
12. Interrogator Connector (Box Location)
13. Control Transformer
14. Evaporator Fan Contactor - E1
15. Evaporator Fan Contactor - S1
16. Evaporator Fan Contactor - S2 or EF
17. Evaporator Fan Contactor - E2 or ES
18. Condenser Fan Contactor
19. Circuit Breaker - 460V
20. Current Sensor Module
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