Carrier Transicold 69NT40-561-001, Operation And Service Manual, Page: 28 / 182

T-340 3–6
3.1.7 Control Box Section
The control box (see 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.
Figure 3.6 Control Box Section
1) Compressor Contactor (CH)
2) Compressor Phase A Contactor (PA)
3) Compressor Phase B Contactor (PB)
4) Heater Contactor (HR)
5) Display Module
6) Communications Interface Module
7) Controller / DataCORDER Module
8) Keypad
9) Remote Monitoring Receptacle
10) Start-Stop Switch (ST)
11) Controller Battery Pack standard Location
12) Interrogator Connector box location
13) Control Transformer
14) High Speed Evaporator Fan Contactor (EF)
15) Low Speed Evaporator Fan Contactor (ES)
16) Condenser Fan Contactor (CF)
17) Circuit Breaker 460V
18) Current Sensor Module
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3.1.8 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.
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