Carrier 69NT40-561-201, Operation & Service Manual

Page: 22 / 117

T-364 2 − 5
2.1.6 Control Box Section
The control box (Figure 2 − 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.
2.1.7 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.
CF ES
EF
HW
CH
PA PB
HR
1
2
3
4
10 12
15
6
13 11 14 9
5
7
8
1. Compressor Contactor − CH
2. Compressor Phase A Contactor − PA
3. Compressor Phase B Contactor − PB
4. Heater Contactor − HR
5. Terminal Block − HW
6. Controller/DataCORDER Module (Controller)
7. Remote Monitoring Receptacle
8. Start − Stop Switch, ST
9. Controller Battery Pack (Standard Location)
10. Control Transformer
11. High Speed Evaporator Fan Contactor − EF
12. Low Speed Evaporator Fan Contactor − ES
13. Condenser Fan Contactor − CF
14. Circuit Breaker − 460V
15. Current Sensor Module
Figure 2 − 5 Control Box Section