Samsung AE044MXTPEH - Page 3

Contents
4-4-3 Water pump & ow switch OFF ........................................................................................................................... 71
4-4-4 Water pump & ow switch ON
............................................................................................................................72
4-4-5 Hydro unit temperature sensor(open/short)
................................................................................................73
4-4-6 Communication error after nishing Tracking(Hydro unit)....................................................................74
4-5 Items to check before diagnostics
............................................................................................................................... 75
4-5-1 Test run mode and view mode
............................................................................................................................ 75
4-5-2 Troubleshooting for outdoor unit
...................................................................................................................... 76
4-5-3 Troubleshooting for outdoor unit(cont.)
.........................................................................................................77
4-6 Troubleshooting by symptoms
..................................................................................................................................... 78
4-6-1 Communication error after nishing tracking (E202)
...............................................................................78
4-6-2 Time out (1min.) of communication error between MAIN PBA and INV. PBA (E203)
................. 79
4-6-3 Temperature sensor error (E221, E231, E251, E320)
................................................................................... 80
4-6-4 Fan error (E458, E475)
..............................................................................................................................................81
4-6-5 Compressor error (E461, E467)
............................................................................................................................83
4-6-6 Current trip error (E462, E463)
.............................................................................................................................84
4-6-7 IPM(IGBT module) over current error (E464)
.................................................................................................85
4-6-8 DC-link voltage under/over error (E466)
......................................................................................................... 87
4-6-9 GAS leak error (E554)
................................................................................................................................................ 88
4-6-10 The other errors
........................................................................................................................................................89
4-6-11 In case of heating at the cooling mode or cooling at the heating mode
.....................................90
4-6-12 Outdoor unit is not powered on - Initial diagnosis
..................................................................................92
4-6-13 Outdoor unit power supply error
....................................................................................................................93
5. PCB Diagram ........................................................................................................... 94
5-1 Hydro unit ................................................................................................................................................................................94
5-2 Tank Integrated Hydro Unit / Hydro Unit
...............................................................................96
5-3 Outdoor Unit...........................................................................................................................................................................98
6. Wiring Diagram ..................................................................................................... 108
6-1 Hydro unit ............................................................................................................................................................................. 108
6-1-1 1Phase Model
........................................................................................................................................................... 108
6-1-2 3Phase Model
............................................................................................................................................................ 109
6-2 Outdoor Unit........................................................................................................................................................................ 110
6-3 Tank Integrated Hydro Unit
........................................................................................................................................... 113
7. Piping Diagram ..................................................................................................... 114
7-1 Piping Diagram ..................................................................................................................................................................114
8. Reference Sheet .................................................................................................... 120
8-1 Index for Model Name..................................................................................................................................................... 120
8-1-1 Outdoor Unit / Hydro Unit
.................................................................................................................................. 120