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 TM 55-1905-219-14-11
5-144. REFRIGERATOR/FREEZER - MAINTENANCE INSTRUCTIONS
(Continued).
LOCATION
ITEM
ACTION
REMARKS
REPAIR (Cont)
SERVICE
2.
Pressure settings.
a.
All back pressure controls are factory set at 17 psi cut-out and 34 psi cut-in. These control settings will result
in a cabinet temperature average of 40 under normal conditions. If it becomes necessary to adjust the control, the
F
cut-in point must never be set lower than 34 psi or the evaporator will not defrost during the off cycle. To lower the
temperature, lower the cut-out point only. When the control is properly set, defrosting will be automatic.
5-1459
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