Fujitsu Ceiling Type Design & Technical Manual

Part 3. SYSTEM DESIGN.................................................................173
1. Installation precautions............................................................................174
1-1. Indoor unit installation precautions...............................................................................174
1-2. Outdoor unit installation precautions............................................................................178
2. Pipe design................................................................................................179
2-1. Important items when using refrigerant (R410A)..........................................................179
2-2. Piping limitation............................................................................................................180
2-3. Pipe size ......................................................................................................................187
2-4. Selection of pipe heat insulating material.....................................................................189
2-5. Additional charge calculation .......................................................................................190
3. Pipe installation.........................................................................................195
3-1. Caution of piping ..........................................................................................................195
3-2. Piping to outdoor unit ...................................................................................................197
3-3. Pipe connection ...........................................................................................................198
3-4. Branch pipes................................................................................................................202
4. Wiring design ............................................................................................209
4-1. Precaution for electrical wiring .....................................................................................209
4-2. Power supply cable wiring............................................................................................211
4-3. Control patterns ...........................................................................................................217
5. System setting...........................................................................................221
5-1. Indoor unit setting ........................................................................................................221
6. External input and output.........................................................................225
6-1. Indoor unit....................................................................................................................225
6-2. Outdoor unit .................................................................................................................232
7. Remote controller .....................................................................................236
7-1. Wireless remote controller (AR-RAH2E/AR-RAH1E)...................................................236
7-2. IR receiver kit with Wireless remote controller (UTY-LRHYA2: Optional part) .............239
7-3. IR receiver kit with Wireless remote controller (UTY-LRHYM: Optional part)...............242
7-4. Wired remote controller (UTY-RNNYM).......................................................................245
7-5. Wired remote controller (UTY-RVNYM: Optional part).................................................249
7-6. Simple remote controller (UTY-RSNYM: Optional part) ...............................................257
8. Function settings .....................................................................................261
8-1. Indoor unit (setting by DIP switch and jumper wire) .....................................................261
8-2. Indoor unit (setting by wireless remote controller)........................................................263
8-3. Indoor unit (setting by wired remote controller) ............................................................269
8-4. Indoor unit (setting by simple remote controller) ..........................................................275
8-5. Outdoor unit .................................................................................................................279
8-6. Function details............................................................................................................284
8-7. Wired remote controller (UTY-RNNYM).......................................................................290
8-8. Wired remote controller (UTY-RVNYM) .......................................................................292
8-9. Simple remote controller (UTY-RSNYM)......................................................................293
CONTENTS (continued)

Fujitsu Ceiling Type Specifications

General

Brand	Fujitsu
Model	Ceiling Type
Category	Air Conditioner
Language	English