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Carrier 38VMA Series User Manual

Carrier 38VMA Series
112 pages
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38VMH072-432
Outdoor Unit for
Variable Refrigerant Flow (VRF) Heat Pump System
Service Manual
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 17-38VMH001-06 Printed in U.S.A. Form 38VMH-1SM Pg 1 10-17 Replaces: NEW

Table of Contents

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Carrier 38VMA Series Specifications

General IconGeneral
Series38VMA
Cooling StagesVariable
Energy Star CertifiedYes
SmartSense TechnologyYes
Product TypeAir Conditioner
Compressor TypeInverter

Summary

Function and Control

Protection Control

High Pressure Protection Control

Protects the compressor from excessive system pressure.

Inverter Protection Control

Safeguards the inverter against overcurrent and overheating.

Field Settings

Troubleshooting

0E0: Communication Fault Between ODUs

Addresses communication errors between outdoor units.

0E2: Communication Error Between ODU and IDU

Addresses communication errors between outdoor and indoor units.

0E4: T3 or T4 Temperature Sensor Error

Diagnoses faults with temperature sensors T3 or T4.

0E5: Voltage Protection

Identifies issues related to improper input voltage.

0H8: High Pressure Sensor Error

Diagnoses faults with the high-pressure sensor.

0Hb: Low Pressure Sensor Error

Diagnoses faults with the low-pressure sensor.

0F3~0F5: Temperature Sensor Error

Diagnoses faults with various temperature sensors.

0F6: Electronic Expansion Valve Error

Addresses errors detected in the electronic expansion valve.

0P1: Current Leakage Error

Diagnoses issues related to current leakage.

0P1: Discharge Temperature Switch or High Pressure Protection

Addresses high pressure or discharge temperature protection faults.

0P2 0H5: Low Pressure Protection

Diagnoses low-pressure protection faults.

0P3: Over Current Protection for Compressor

Addresses compressor overcurrent protection.

0P4 0H6: Discharge Temperature Protection

Addresses discharge temperature protection faults.

0P5: High Temperature Protection for Pipe Temperature

Addresses high pipe temperature protection.

L0~L9 10H4 / 20H4: Compressor INV Module Protection

Diagnoses compressor INV module protection errors.

Appendix

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