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Product Loading
Before Loading
•
Pre-cool the body. This will remove much of the heat from
the inside of the body and give the product better protection
when it is loaded.
•
Place the unit in a defrost cycle immediately before loading.
This will remove moisture accumulated on the evaporator
coil.
During Loading
•
Turn the unit off!
•
Check product temperature during loading.
•
Ensure that the air return and supply opening remain
unobstructed.
•
Leave approximately 4 to 5 inches between the load and the
front wall for air return to the unit.
•
Leave at least 10 to 12 inches between the top of the load
and the ceiling to ensure there is nothing to prevent airflow
to the rear of the body.
•
Load product on pallets to provide free air return to unit and
improve product protection.
Proper air circulation in the truck body (air that can move around
and through the load) is a critical element in maintaining product
quality during transport. If air cannot circulate completely around
the load, hot spots or top-freeze can occur.
The use of pallets is highly recommended. When loaded, air can
flow freely through the pallets to return to the evaporator, helping
to protect the product from heat passing thought the floor of the
truck. When using pallets, it is important to refrain from stacking
extra boxes on the floor at the rear of the truck as this will cut off
the airflow.
Product stacking is another important factor in protecting the
product. Products that generate heat – fruits and vegetables, for
example – should be stacked so the air can flow through the
product to remove the heat. This is called "air stacking" the
product. Products that do not create heat – meats and frozen
products - should be stacked tightly in the center of the trailer.
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