Carrier TRANSICOLD Vector 8500 User Manual

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Indication/Trouble Possible Causes Action / Reference
9.4.8 Abnormal Pressure - Cooling
High discharge pressure
Condenser coil dirty Section 8.8.2
Condenser fans rotating backwards Check Wiring
Refrigerant overcharge or noncondensibles Section 8.6.2
Discharge service valve partially closed Open
Stuck Open Economizer Valve Section 8.8.7
Stuck Open LIV Section 8.8.8
Defective High Pressure Switch Section 8.8.9
Low discharge pressure
Low refrigerant charge Section 8.6.2
Suction modulation valve malfunction Section 8.8.6
Damaged Compressor Section 8.7
Compressor rotation backwards Check Contactor
Wiring
Discharge transducer circuit faulty pressure reading Section 8.8.10
Low suction pressure
Filter-drier partially plugged Section 8.8.3
Low refrigerant charge Section 8.6.2
Expansion valve malfunction Section 8.8.7
No evaporator air flow or restricted air flow Section 9.4.10
Excessive frost on evaporator coil Section 8.8.11
Suction modulation valve malfunction Section 8.8.6
Liquid or suction line service valve partially closed Open
High suction pressure
Transducer defective Section 8.8.10
EVXV stuck open Section 8.8.7
Compressor defective Section 8.7
Suction and discharge pressures
tend to equalize when unit is oper-
ating
Compressor rotation backwards Check Contactor
Wiring
Damaged Compressor Section 8.7
9.4.9 Abnormal Noise
Compressor
Loose mounting bolts Tighten
Worn bearings Section 8.7
Liquid slugging Section 9.4.11
Condenser or evaporator fan
Condenser fan Section 8.9.11
Evaporator fan Section 8.9.10
9.4.10 No Evaporator Air Or Flow Or Restricted Air Flow
Evaporator coil blocked
Frost on coil Section 8.8.11
Dirty coil Section 8.8.1
No or partial evaporator air flow
Evaporator fan rotating backwards Section 8.9.10
Evaporator fan defective Section 8.9.10
Evaporator air flow blocked Check

Carrier TRANSICOLD Vector 8500 Specifications

General

Brand	Carrier TRANSICOLD
Model	Vector 8500
Category	Automobile Accessories
Language	English