MIL-PRF-12574 Refrigeration Units, Mechanical, Panel Type, 5000 Btu For Refrigerator, Field, Portable \(150 Cubic Foot\)This document covers two types of panel type, mechanical, refrigeration units having a capacity of 5000 British thermal units \(Btu\) per hour and used with a 150-cubic foot, portable field refrigerator \(see 6.1\).

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MIL-PRF-12574M

source for one 36-hour period of operation and on 3-phase, 50-Hz

power with voltage as specified in the contract for the other 36-

hour period.

4.3.2.10 Finish certification and examination . The contractor

shall certify that the refrigeration unit's finish is nontoxic and

chemical agent resistant, meeting government requirements. Painted

surfaces shall be visually examined to verify that there are no

streaks, crops, pinholes, checks or cracks.

4.3.2.11 Safety certification and inspection

Safety

requirements shall be verified as follows.

Wiring certification . Wiring practices used in the

4.3.2.11.1

refrigeration units shall be certified as conforming to NFPA

Standard No. 70 by submission of the manufacturer's certification, a

certified test report or appropriate labels or listing marks.

4.3.2.11.2.

Electrical components and enclosure certification

Electrical components shall be certified as conforming to the

requirements of UL Standard 486 and electrical enclosures (junction

boxes, control boxes, etc.) shall be certified as conforming to the

watertightness requirements of NEMA Standards Publication No. 250 by

submission of the manufacturer's certification, a certified test

report or appropriate labels or listing marks.

Refrigeration components certification . Refrigerant

4.3.2.11.3

containing components used in the refrigeration units shall be

certified as conforming to UL Standard 207 by submission of the

manufacturer's certification, a certified test report or appropriate

labels or listing marks.

4.3.2.11.4

Toxic hazards inspection . Visually inspect type I

refrigeration units to verify that provisions for oil drainage and

discharge of exhaust gases are located outside the refrigeration

unit.

4.3.2.11.5

Personnel safety inspection . Visually verify that a

plate indicating "Danger, Rotating Fan" has been permanently

attached on both sides of the condenser section when applicable.

4.3.3 Support or ownership requirements verification . All

ownership and support requirements shall be verified as follows.

4.3.3.1 Weight inspection . Verify, by weighing, that the type I

unit weighs no more than 775 pounds, excluding battery and fuel, and