Table Of Contents - Heat Controller SMA Service Manual

1 Precaution ....................................................................................................................4
1.1 Safety Precaution...................................................................................................................................4
1.2 Warning ..................................................................................................................................................4
2 Function .......................................................................................................................
3 Dimension .................................................................................................................... 8
4 Specification ................................................................................................................10
5 Refrigerant cycle diagram......................................................................................... 14
6 Operation limits ......................................................................................................... 15
7 Wiring diagram........................................................................................................... 16
8 Installation details...................................................................................................... 23
8.1 Wrench torque sheet for installation .................................................................................................... 23
8.2 Connecting the cables ......................................................................................................................... 23
8.3 Pipe length and the elevation .............................................................................................................. 23
8.4 Air purging of the piping and indoor unit .............................................................................................. 24
8.5 Pumping down (Re-installation)........................................................................................................... 26
8.6 Re-air purging (Re-installation)............................................................................................................ 27
8.7 Balance refrigerant of the 2-way, 3-way valves ................................................................................... 28
8.8 Evacuation ........................................................................................................................................... 29
8.9 Gas charging........................................................................................................................................ 30
9 Electronic function .................................................................................................... 31
9.1 Electronic control working environment...............................................................................................31
9.2 Proper symbols and their meaning ...................................................................................................... 31
9.3 Function ............................................................................................................................................... 32
9.4 Protection ............................................................................................................................................. 32
9.5 Fan only mode ..................................................................................................................................... 33
9.6 Cooling mode ....................................................................................................................................... 33
9.7 Dehumidifying mode ............................................................................................................................ 34
9.8 Heating mode....................................................................................................................................... 34
9.9 Defrosting mode(available for heating mode) ..................................................................................... 35
9.10 Auto mode .......................................................................................................................................... 36
9.11 Force cooling function ........................................................................................................................ 36
9.12 Sleep mode(Economic mode) ........................................................................................................... 37
9.13 Auto restart function ........................................................................................................................... 38
9.14 Turbo mode ........................................................................................................................................ 38
10 Troubleshooting......................................................................................................... 39
10.1 Display board ..................................................................................................................................... 39
10.2 Troubleshooting.................................................................................................................................. 41
10.3 Diagnostic chart.................................................................................................................................. 42
10.4 Resetting phenomenon often occurs during operation...................................................................... 44
10.5 Indoor fan speed out of control . ........................................................................................................ 44
10.6 Temperature sensor error................................................................................................................... 45
Contents
Heat Controller, Inc. Jackson, MI 49203
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