TM 9-4110-254-14
c. Pressure Gage (DISCHARGE) Indicates Above 270 psi (1863 kPa). At start up and/or operation in high ambient
temperatures, pressures above 270 psi (1863 kPa) are possible.
YES
NO
SHUT DOWN THE REFRIGERATION UNIT
NOTIFY UNIT MAINTENANCE.
OBSTRUCTION CANNOT BE CLEARED, NOTIFY
UNIT MAINTENANCE TO CLEAR IT.
d. Pressure Gage (DISCHARGE) Indicates Below 160 psi (1104 kPa). During operation in low ambient
temperatures, pressures below 160 psi (1104 kPa) are possible.
NOTIFY UNIT MAINTENANCE.
e. Pressure Gage (SUCTION) Indicates Above 15 psi (104 kPa). At start up and/or operation in high ambient
temperatures, pressures above 15 psi (104 kPa) are possible.
IS REFRIGERATOR ENCLOSURE DOOR OPEN?
YES
NO
CLOSE REFRIGERATOR ENCLOSURE DOOR.
NOTIFY UNIT MAINTENANCE.
f.
Pressure Gage (SUCTION) Indicates Below 0 psi (0 kPa). At start up, shut down, or operation in low ambient
temperatures, pressures below 0 psi (0 kPa) are possible.
OBSTRUCTED?
YES
NO
SHUT DOWN THE REFRIGERATION UNIT
NOTIFY UNIT MAINTENANCE.
OBSTRUCTION CANNOT BE CLEARED, NOTIFY
UNIT MAINTENANCE TO CLEAR IT.
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