Carrier 38QUA009DS, Service Manual, Page: 1 / 116

Model Numbers:
Indoor Unit:
40QSM009DS; 40QTD009DS;
40QSM012DS; 40QTD012DS;
40QSM018DS; 40QTD018DS; 40QZL018DS
40QSM024DS; 40QTD024DS; 40QZL024DS;
40QSM036DS; 40QTD036DS; 40QZL036DS;
40QSM048DS; 40QTD048DS; 40QZL048DS;
40QSM060DS; 40QZL060DS;
40QSS018DS;
40QSS024DS;
40QSS036DS;
40QSS048DS;
Outdoor Unit:
38QUA009DS;
38QUA012DS; 38QUA018DS; 38QUA024DS;
38QUA036DS; 38QUA048DS;38QUA060DS;
Light commercial InVERTER
Side Discharge CDU type
SERVICE MANUAL
Table of Contents
1. Precaution
2. Part Names And Functions
3. Dimension
4. Service space
5. Refrigerant Cycle Diagram
6. Wiring Diagram
7. Static Pressure
8. Electric Characteristics
9. Sound Level
10. Accessories
11. The Specification of Power
12. Installation Details
13. Operation Characteristics
14. Electronic Function
15. Solar Panel
16. Troubleshooting
17. Disassembly Instructions
WARNING

Installation MUST conform with local building codes or, in the absence of local codes, with the
National Electrical Code NFPA70/ANSI C1-1993 or current edition and Canadian Electrical
Code Part1 CSA C.22.1.

The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments

Installation or repairs made by unqualified persons can result in hazards to you and others.

Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.

This service is only for service engineer to use.