MIL-PRF-13312 Refrigeration Units, Mechanical, Panel Mounted, 10,000 Btu For Refrigerator, Prefabricated, Panel TypeThis document covers two types of panel mounted, mechanical, refrigeration units having a capacity of 10,000 British thermal units \(Btu\) per hour and used with the prefabricated, panel type refrigerator \(see 6.1\).

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MIL-PRF-13312R

failure and with no more than five incidents.

4.3.2.6 Ozone-depleting chemicals inspection. Visually check publication SD-14 (see 6.6) to verify

that the refrigerant used in the refrigeration unit is not listed.

4.3.2.7 Temperature control inspection. Visually inspect the temperature control to verify that

temperatures from minus 10o F to plus 400F can be selected in increments not less than 20 F and not

greater than 60F.

4.3.2.8 Diesel engine operation demonstration. During the 72-hour operation test on type I

refrigeration units, observe that diesel fuel is used for one 36-hour period of operation and JP-8 fuel is

used for the other 36-hour period of operation.

4.3.2.9 Compressor operation demonstration. During the 72-hour operation test on type II

refrigeration units, observe that the compressor operates on a 208/230 volt, 3-phase, 60-Hz power

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 Safety certification and inspection. Safety requirements shall be verified as follows.

4.3.2.10.1 Wiring certification. Wiring practices used in the 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.

4.3.2.10.2. 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 MG-1 by submission of the manufacturer's certification, a certified test report or appropriate

labels or listing marks.

4.3.2.10.3 Refrigeration components certification. Refrigerant 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.

4.3.2.10.4 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.

4.3.2.10.5 Personnel safety inspection. Visually verify that a plate indicating "Danger, Rotating

Fan" has been permanently attached on both sides of the condenser.

4.3.3 Ownership and support requirements verification. All ownership and support requirements