2-6
T-292
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 expansion 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.
19
20
15
17
18
1
2
3
4
5
6
7
9
11
8
10
16
12
13
14
1. Compressor Phase A Contactor
2. Compressor Phase B Contactor
3. Heater Contactor
4. Display Module
5. Communications Interface Module
6. Controller/DataCORDER Module (Controller)
7. Expansion Module
8. Key Pad
9. Remote Monitoring Receptacle
10. Controller Battery Pack
11. Interrogator Connector (Box Location)
12. Fan Mode Switch
13. Emergency Bypass Switch
14. Emergency Defrost Switch
15. Control Transformer
16. Evaporator Fan Contactor - High
17. Evaporator Fan Contactor - Low
18. Condenser Fan Contactor
19. Circuit Breaker -- 460V
20. Current Sensor Module
Figure 2-6 Control Box Section
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Summary of Contents for 69NT40-531 Series
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