2-6
T-296
2.1.7 Control Box Section
The control box (Figure 2-6) 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.
2.1.8 Communications Interface Module
The communications interface module is a slave
module which allow communication with a master
central monitoring 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.
16
17
18
12
14
15
1
2
3
4
5
6
7
10
9
19
11
8
13
20
21
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. Condenser Fan Switch
12. Controller Battery Pack
13. Interrogator Connector (Box Location)
14. Control Transformer
15. Evaporator Fan Contactor - E1
16. Evaporator Fan Contactor - S1
17. Evaporator Fan Contactor - S2 or EF
18. Evaporator Fan Contactor - E2 or ES
19. Condenser Fan Contactor
20. Circuit Breaker -- 460V
21. Current Sensor Module
Figure 2-6 Control Box Section
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