Si39-303
ii Table of Contents
1.2 Standard Operation Limit .....................................................................156
1.3 Standard Supplied Accessories ...........................................................156
1.4 Option Accessory .................................................................................157
1.5 Technical Specifications ......................................................................158
1.6 Electrical Specifications........................................................................160
2. Main Components...............................................................................161
3. Selection of Location...........................................................................162
4. Inspecting and Handling the Unit ........................................................164
5. Unpacking and Placing the Unit..........................................................165
6. Refrigerant Piping ...............................................................................167
6.1 Selection of Piping Material..................................................................167
6.2 Connecting the Refrigerant Piping .......................................................168
6.3 Example of Connection ........................................................................173
6.4 Leak test and Vacuum Drying ..............................................................175
6.5 Pipe Insulation......................................................................................177
6.6 Additional refrigerant charge ................................................................178
7. Field Wiring .........................................................................................180
7.1 Optional Parts Cool / Heat Selector .....................................................180
7.2 Power Circuit and Cable Requirements ...............................................181
7.3 General.................................................................................................182
7.4 Examples..............................................................................................183
8. Before Operation.................................................................................191
8.1 Checks Before Initial Start-up...............................................................191
8.2 Test Run...............................................................................................192
9. Caution for Refrigerant Leaks .............................................................194
9.1 Caution for Refrigerant Leaks ..............................................................194
Part 3 Operation Manual ...........................................................197
1. Safety Cautions...................................................................................199
2. What to Do Before Operation..............................................................202
3. Remote Controller and Changeover Switch:
Name and Function of Each Switch and Display ................................203
4. Warning...............................................................................................205
4.1 Never Do the Following........................................................................205
5. Operation Range.................................................................................206
6. Operation Procedure...........................................................................207
6.1 Cooling, Heating and Fan Only Operation ...........................................207
6.2 Program Dry Operation ........................................................................209
6.3 Adjusting the Air Flow Direction (Only for Double-flow,
Multi-flow, Corner, Ceiling-suspended and Wall-mounted) ..................210
6.4 Programming Start and Stop of the System with Timer .......................211
6.5 Setting the Master Remote Controller ..................................................212
6.6 Precautions for group control system or
two remote controller control system....................................................213
7. Optimum Operation.............................................................................214
8. Following Symptoms are not Air Conditioner Troubles.......................215
8.1 The System does not operate ..............................................................215
8.2 Cool/Heat cannot be Changed Over ....................................................215
8.3 Fan Operation is Possible, but Cooling and Heating do not Work .......215
8.4 The Fan Strength does not Correspond to the Setting.........................215
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