ASSE STANDARD

The primary specifications of the ASSE 1060 standard include:

1.0 Classifications
Class I Freeze Protection Enclosures (Heated)

Enclosures designed and constructed to maintain a minimum internal temperature of 40°F with the external temperature of -30°F with a minimum Thermal Resistance (R) Value of eight (8.0).

Class I-V Freeze protection enclosures for pressure and atmospheric vacuum breakers.

Class II Freeze Retardent Enclosures (may or may not have a Heater)

Enclosures designed and constructed to maintain a minimum internal temperature of 40°F for a 24-hour period with a minimum Thermal Resistance (R) Value of eight (8.0).

Class II-V Freeze protection enclosures for pressure and atmospheric vacuum breakers.

Class III Non-Freeze Protection Enclosures (No Heat)

Enclosures designed and constructed with NO freeze protection and NO minimum Thermal Resistance (R) value.

Class III-V Non-Freeze enclosures for pressure and atmospheric vacuum breakers.

2.0 Structural Strength
All classification enclosures must designed to support a minimum vertical load of 100 pounds per square foot (100 psf).

3.0 Drainage Capability
All classification enclosures must be designed to discharge water from within the enclosure to prevent submerging the equipment. The depth of water rise within the enclosure shall not exceed 6 inches during full discharge of a Reduced Pressure Zone backflow preventer and according to the following diameter requirements:

4.0 Access for Testing and Maintenance
Equipment components such as test cocks and valve handles or hand wheels must be within 24 inches of the access opening.

Hinged access panels must be restrained in the open and closed position.

All unrestrained panels and horizontal hinged panels must weigh 70 lbs. or less.

5.0 Security and Vandalism
Access to the internal equipment shall be lockable. Access shall be by keyed devices or have the ability to affix padlocks

6.0 Materials of Construction
Exposed Exterior Wall Panel Materials