TYPICAL CPE CONFIGURATION

TM 3-4240-302-30&P-5

particulate and gas filters to the airflow

the outside must wait 5 minutes within the PE

valve.The filtered air passes through the airflow

before entering the shelter. Contamination is

valve and is carried by airduct hoses to the

purged by the flow of filtered air. The protective

protective entrance (PE) through the airflow

entrance control module (PECM) automatically

valve and silencer and to the shelter through the

adjusts the airflow valve and silencer assembly

air conditioner. Pressure sensing components

to maintain the proper air pressure inside the

in the compartment control module (CCM)

protective entrance.

automatically adjust the airflow valve to maintain

a positive pressure in the shelter.

d. CPE System Configurations.

Collective

protection equipment is configured to fit the needs of a

(2) The PE provides a pressurized transition area

specific application and may differ from the typical

between

the

shelter

and

the

outside

system discussed above.

contaminated zone. Personnel entering from

TYPICAL CPE CONFIGURATION

1-2