MIL-PRF-44466D
4.3.2.9 Spillage test. One-half gallon of water shall be placed into the HWR and the lid shall be
secured. The container shall be placed on its side and left for 10 minutes. The container shall
then be placed on its next side by rotating 900 and again left for 10 minutes. This procedure
shall be repeated until all 4 sides have been done. The HWR shall then be turned upside down so
that the HWR is resting on its lid. Verify that no leakage, except leakage through the pressure
relief valve has occurred.
4.3.3 Interface and interoperability requirements verification. Complete each
verification in section 4.3.3.
4.3.3.1 Operating current test. The HWR shall be connected to a 24/28 Volt DC power
supply. The temperature selection switch shall be set to the "high" position and to the "low"
position for 20 seconds each. Drawing of a current no less than 10 amps or no greater than 15
amps shall be verified.
4.3.3.2 Low voltage detector test. Verify that the low voltage detector monitors the power
supply and activates the heater off latch when the voltage level is < 20 Volts DC.
4.3.3.3 Dimensions verification. Verify that overall dimensions of the HWR are no greater
than indicated on Drawing No. 5-13-6900.
4.3.3.4 Power cord verification. Verify the power cord as shown on Drawing No. 5-13-6901
interfaces with the electric supply receptacle as shown on Drawing No. 5-13-6900.
4.3.3.5 Electric supply receptacle verification. Verify that the receptacle, pins and polarizing
key location are as shown on Drawing No. 5-13-6900. Verify that the pin connections are Pin A
positive, Pin B negative, and Pin C no connection.
4.3.3.6 Mounting studs verification. Verify the permanency of the mounting stud attachment
and that the stud thread, location, and dimensions are as indicated on Drawing No. 5-13-6900.
4.3.3.7 Food contact zone verification. Verify that the surfaces of the main compartment and
the inner container are nontoxic, cleaning agent resistant and have a stainless steel number 3 finish
in accordance with food zone requirements of NSF Standards 2 and 4.
4.3.4 Support or ownership requirements verification. Complete each verification in
section 4.3.4.
4.3.4.1 Reliability test. The HWR shall demonstrate a minimum of 1030 operation cycles
(approximately 1030 hours of operational test time) without failure. Up to 10 HWRs may be
utilized concurrently to achieve the total number of test cycles. A cycle is one iteration of the
procedure outlined in 4.3.2.2. Achievement of a temperature rise > 1000F per cycle and no
component failure shall be verified.
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