MIL-PRF-12574M
3.2.7
Operation time . Type I refrigeration units shall operate
for a minimum of 38 hours without refueling.
Control panel . The refrigeration units shall have a
3.2.8
control panel for the operator having, but not limited to, the
following items:
1.
Start, run, stop control
2.
Operation indicator
3.
Refrigerator temperature control
4.
Refrigeration unit running time indicator
5.
High and low side pressure indicators
6.
Refrigerator interior temperature indicator
7.
Defrost operation indicator
8.
Fuel capacity indicator for type I units
9.
Battery charging circuit voltage indicator for type I
units
3.2.9 Ozone-depleting substances . The refrigerant shall be
commercially available nonozone-depleting, and environmentally
safe. Class I ozone-depleting substances, as determined by the
Environmental Protection Agency, shall not be contained in, and
shall be prohibited from use during the fabrication of the
refrigeration units (see 6.6).
3.2.10 Temperature control . The selected temperature of the
refrigeration units shall be controlled automatically. The
temperature control shall allow an incremental selection of normal
refrigerator temperatures.
3.2.11 Diesel engine operation . Unless otherwise specified for
type I refrigeration units (see 6.2), the diesel engine's
electrical system shall operate on 12-volt direct current (DC). The
engine shall operate on diesel and JP-8 fuels.
3.2.12 Power requirements . Unless otherwise specified for type
II refrigeration units (see 6.2), the refrigeration units shall
operate on 208/230 volt, 3-phase, 60-hertz (Hz) and 3-phase, 50-Hz
power on the voltage specified in the contract or order (see 6.2).
3.2.13 Finish . The refrigeration units except where detrimental
to proper operation shall have a nontoxic chemical agent resistant
green finish (see 6.7.1). The word "CARC", together with the month
and year of finishing, shall be stencilled near the identification
plate in block letters not less than 1 inch high using lusterless
black chemical agent resistant paint (see 6.7.2) All paint shall
be properly applied.
4
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