Table Of Contents - Carrier 42HVM109303 Service Manual

1. Precaution .............................................................................................................................................. 3
1.1 Safety Precaution .......................................................................................................................... 3
1.2 Warning ......................................................................................................................................... 3
2. Function ................................................................................................................................................. 7
3. Dimension .............................................................................................................................................. 8
3.1 Indoor Unit ..................................................................................................................................... 8
3.2 Outdoor Unit ................................................................................................................................ 10
4. Refrigerant Cycle Diagram ................................................................................................................... 11
5. Wiring Diagram .................................................................................................................................... 12
5.1 Indoor Unit ................................................................................................................................... 12
5.2 Outdoor Unit ................................................................................................................................ 13
6 Installation Details................................................................................................................................. 15
6.1 Wrench torque sheet for installation ........................................................................................... 15
6.2 Connecting the cables................................................................................................................. 15
6.3 Pipe length and the elevation...................................................................................................... 16
6.4 Installation for the first time ......................................................................................................... 17
6.5 Adding the refrigerant after running the system for many years................................................. 20
6.6 Re-installation while the indoor unit need to be repaired............................................................ 21
6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 23
7. Operation Characteristics .................................................................................................................... 26
8. Electronic function ............................................................................................................................... 27
8.1 Abbreviation................................................................................................................................. 27
8.2 Display function ........................................................................................................................... 27
8.3 Main Protection ........................................................................................................................... 28
8.4 Operation Modes and Functions ................................................................................................. 30
9. Troubleshooting ................................................................................................................................... 45
9.1 Indoor Unit Error Display ............................................................................................................. 45
9.2 Diagnosis and Solution ............................................................................................................... 46
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