Table Of Contents - Heat Controller B-DVH09SD-0 Service Manual

Inverter single zone ductless mini-split

Table of Contents

DVC/DVH Inverter Mini-Split

1. Precaution ........................................................................................................................................................................3

1.1 Safety Precaution ......................................................................................................................................................3

1.2 Warning .....................................................................................................................................................................4

2. Part Identification and Functions ...................................................................................................................................5

2.1 Model Numbers of Indoor/Outdoor units ...................................................................................................................5

2.2 Required clearances for Indoor/Outdoor units .......................................................................................................5-6

2.3 Features .................................................................................................................................................................6-7

3. Dimensional Data ............................................................................................................................................................8

3.1 Indoor Unit ................................................................................................................................................................8

3.2 Indoor Unit Mounting Bracket ...................................................................................................................................9

3.3 Outdoor Unit ............................................................................................................................................................10

4. Refrigerant Cycle Diagram ........................................................................................................................................... 11

4.1 Cooling Only Models (DVC) .................................................................................................................................... 11

4.2 Heat Pump Models (DVH) ......................................................................................................................................12

5. Wiring Diagrams ............................................................................................................................................................13

5.1 Indoor Units ........................................................................................................................................................13-14

5.2 Outdoor Units ..........................................................................................................................................................15

6. Installation Details .........................................................................................................................................................16

6.1 Electrical .................................................................................................................................................................16

6.2 Line Set Connection Sizes ......................................................................................................................................16

6.3 Line Set Lengths and Elevations ............................................................................................................................16

6.4 Field Charging .........................................................................................................................................................16

7. Operating Conditions ....................................................................................................................................................17

8. Electronic Display Functions .......................................................................................................................................18

8.1 Abbreviations ..........................................................................................................................................................18

8.2 Display Functions ....................................................................................................................................................18

8.3 Main Protection .......................................................................................................................................................18

9. Operation Modes and Functions ..................................................................................................................................19

9.1 Fan Only Mode .......................................................................................................................................................19

9.2 Cooling Mode .....................................................................................................................................................19-21

9.3 Heating Mode .....................................................................................................................................................21-23

9.4 Defrost Mode .....................................................................................................................................................23-24

9.5 Evaporator Coil Temp. Protection ...........................................................................................................................24

9.6 Auto-Mode ..........................................................................................................................................................24-25

9.7 Dry Mode ................................................................................................................................................................25

9.8 Forced Operation ....................................................................................................................................................25

9.9 Timer Function ...................................................................................................................................................25-26

9.10 Sleep Mode ...........................................................................................................................................................26

9.11 Auto-Restart Function............................................................................................................................................26

9.12 Automatic Panel Function .....................................................................................................................................26

9.13 47°F (8°C) Heating ................................................................................................................................................26

10. Troubleshooting ..........................................................................................................................................................27

10.1 Indoor Unit Error Codes ........................................................................................................................................27

10.2 Outdoor Unit Errors and Troubleshooting ........................................................................................................28-31

10.3 Diagnosis and Solution ....................................................................................................................................32-48

10.4 Pressure on Service Port ......................................................................................................................................49

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. Where conflicts exist, the local

and/or national codes shall prevail.

• The information contained in the manual is intended for use by a qualified, licensed service technician familiar with safety

procedures and equipped with the proper tools and test instruments

• Installation or repairs made by unqualified persons will void the warranty and may cause hazards or incorrect operation.

• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage,

personal injury and/or death.

Heat Controller