Table Of Contents - Carrier QHC Series Service Manual

Table of Contents

1. Precaution .................................................................................................................................................... 1

1.1 Safety Precaution .......................................................................................................................... 1

1.2 Warning ......................................................................................................................................... 1

2 Information servicing ................................................................................................................................... 3

3. Function ........................................................................................................................................................ 8

4. Dimension .................................................................................................................................................... 9

4.1 Indoor Unit ..................................................................................................................................... 9

4.2 Outdoor Unit ................................................................................................................................ 12

5. Refrigerant Cycle Diagram ....................................................................................................................... 13

6 Installation Details ...................................................................................................................................... 14

6.1 Wrench torque sheet for installation ........................................................................................... 14

6.2 Connecting the cables ................................................................................................................ 14

6.3 Pipe length and the elevation ..................................................................................................... 15

6.4 Installation for the first time ......................................................................................................... 16

6.5 Adding the refrigerant after running the system for many years ................................................ 17

6.6 Re-installation while the indoor unit need to be repaired ........................................................... 17

6.7 Re-installation while the outdoor unit need to be repaired ......................................................... 18

7. Operation Characteristics ......................................................................................................................... 20

8. Wiring Diagram .......................................................................................................................................... 21

8.1 Indoor Unit ................................................................................................................................... 21

8.2 Outdoor Unit ................................................................................................................................ 22

9. Electronic function .................................................................................................................................... 24

9.1 Abbreviation ................................................................................................................................ 24

9.2 Display function ........................................................................................................................... 24

9.3 Main Protection ........................................................................................................................... 25

9.4 Operation Modes and Functions ................................................................................................. 26

10. Troubleshooting ....................................................................................................................................... 35

10.1 Indoor Unit Error Display........................................................................................................... 36

10.2 Trouble shooting ....................................................................................................................... 37

CONTENTS

Caution: Risk of fire/flammable materials