Control Box Section; Communications Interface Module; Figure 2-6 Control Box Section - Carrier 69NT40--541--200 TO 299 Operation And Service

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.
1 2
18 17
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. Key Pad
8. Remote Monitoring Receptacle
9. Controller Battery Pack
T-317
3
16 15 14 13

Figure 2-6 Control Box Section

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.
4 5
12 11
10. Interrogator Connector (Box Location)
11. Fan Mode Switch
12. Emergency Bypass Switch
13. Control Transformer
14. Evaporator Fan Contactor - High
15. Evaporator Fan Contactor - Low
16. Condenser Fan Contactor
17. Circuit Breaker -- 460V
18. Current Sensor Module
2-6
6
10 9
8
7