System Faults - Yumpu YCP024F1L-M Installation Operation & Maintenance

CHECKOUT
PROCEDURE
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TROUBLESHOOTING CHART
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SYSTEM FAULTS
REFRIGERANT CIRCUIT
Liquid Pressure Too high
Liquid Pressure Too Low
P S P S S
S P S S S
Suction Pressure Too High S P P S P
Suction Pressure Too Low S S P S
Liquid Refrigerant floodback (TXV System)
Liquid Refrig. floodback (Cap. Tube System)
I. D. Coil Frosting P P S
Compressor Runs Inadequate or No Cooling S _ P S S P S
ELECTRICAL
Compressor & O.D. fan Do Not Start P P S P P P
Compressor Will Not Start But O.D. Fan Runs P S P P P g
O.D. Fan Won't Start p p
Compressor Hums But Wilt Not Start p
Compressor Cycles on IOL P S
I.D. Blower Won't Start P S
P-PRIMARY CAUSES S-SECONDARY CAUSES
P P P S S
P P P S P S P S S S
S P P
X664590
Dwg. No. X664209 P01 Page 21