62-12002 28
16. Product Loading
16.1 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.
16.2 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 (10.2 to 12.7 cm) between the
load and the front wall for air return to the unit.
• Leave at least 10 to 12 inches (25.4 to 30.5 cm) between the top of
the load and the ceiling to ensure that 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.
Pallets
The use of pallets is highly recommended. Pallets help protect the
product from heat that passes through the floor of the trailer when
loaded so air can flow freely through them to return to the evapo-
rator. When using pallets, it is important to refrain from stacking
extra boxes on the floor at the rear of the trailer. This will cut off
the airflow.
Product Stacking
Product stacking is another important factor in protecting the
product. Stack products that generate heat - fruits and vegeta-
bles, for example - so the air can flow through the product to
remove the heat. This is called “air stacking” the product. Stack
products that do not create heat - meats and frozen products -
tightly in the center of the trailer. Keep all products away from the
side walls of the body, to allow air flow between the body and the
load. This prevents heat filtering through the walls from affecting
the product.
To Next Page
Loading...
