Refrigeration system operation
3.3 REFRIGERATION SYSTEM OPERATION
The refrigeration system is powered by internal, rechargeable battery modules, and controlled by a control
module. Sensors in the cargo space walls send signals to the control module, which controls a number of
mechanical refrigeration modules, so that the correct temperature in the cargo space is maintained.
Fig. 5 Schematic view of the internal airflow (example: Releye RLP container)
Temperature-controlled air is circulated from the mechanical refrigeration modules through the air distribution
panels in the ceiling, walls and doors, and into the cargo space. The air travels along the inner floor and re-
enters the refrigeration system through return air outlets in the partition wall at the rear of the cargo space.
To ensure proper air distribution in the cargo space, it is important that the cargo is placed on pallets. Ideally,
cargo should be secured with straps to the tie down tracks in the inner floor.
Fig. 6 Schematic view of the internal-external airflow transition (example: Releye RLP container)
The air inlets on the container sides are used for cooling the modules in the machine room. The return air from
the machine room is discharged through exhaust outlets in the service hatch.
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Doc No:
UM-RAP-1002
Revision:
0
State:
Released
Release Date:
2021-12-10
Approved By:
hanst
