MIL-PRF-44035B
3.2.3 Refrigeration capacity. Refrigeration units shall have
minimum net capacities of 4000 Btu/hr at a thermostat setting of
00F and 6000 Btu/hr at a thermostat setting of 350F.
3.2.4 Heating capacity. Refrigeration units shall have a
gross heating capacity of not less than 3000 Btu/hr at a
thermostat setting not less than 450F.
3.2.5 Defrost system. Refrigeration units shall have a
defrost cycle terminated by temperature, automatically initiated
by a time control adjustable between 4 and 24 hours and have the
capacity to produce not less than 6 pounds of condensate within
30 minutes. The defrost system shall have provisions for manual
defrost override.
3.2.6 Drainage system. Refrigeration units shall have a
drainage system for the collection and discharge of condensate to
the outside of the unit.
3.2.7
Moisture content. The moisture content of the
refrigeration system shall be kept at a minimum to maintain
proper operation of the refrigeration unit.
3.2.8 Refrigerant leakage.
Refrigerant containing components
shall be gastight.
3.2.9 Control panel. The refrigeration units shall have a
control panel for the operator having, but not limited to, the
following items:
1.
Start and stop control
2.
Operation indicator
3.
Refrigerator internal temperature control
4.
Refrigeration unit running time indicator
5.
High and low side pressure indicators
6.
Refrigerator interior temperature indicator
7.
Manual defrost control
8.
Defrost operation indicator
9.
Heating cycle operation indicator
10.
Refrigeration cycle operation indicator
11.
Power supply circuit breaker
3.2.10 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 (EPA), shall not be contained in,
and shall be prohibited from use during the fabrication of the
refrigeration units (see 6.6).
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