Technical Data Manual

Design of Mini VRF SYSTEM
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Contents
2. DESIGN OF MINI VRF SYSTEM
1. Model Selecting and Capacity Calculator ......................................................................... 2-2
2-21-1. Operating Range ...........................................................................................................
2-31-2. Procedure for Selecting Models and Calculating Capacity ...........................................
2-41-3. Calculation of Actual Capacity of Indoor Unit ................................................................
2-91-4. Capacity Correction Graph According to Temperature Condition ................................
2-111-5. Capacity Correction Graph According to Tubing Length and Elevation Difference ....
2-457. Optional Parts .....................................................................................................................
2-457-1.
Distribution Joint Kits
....................................................................................................
2-426. AIR PURGING ....................................................................................................................
2-42
Air Purging with a Vacuum Pump (for Test Run) Preparation..................................
................................................................................................................... 2-132. System Design
2-132-1. Tools Required for Installation (not supplied) ..............................................................
2-13..............................................................2-3. Type of Copper Tube and Insulation Material
2-13.....................................................................2-2. Accessories Supplied with Outdoor Unit
2-132-4. Additional Materials Required for Installation...............................................................
2-14...........................................................................2-6. Straight Equivalent Length of Joints
2-14..................................................................................................................2-5. Tubing Size
2-152-7. Additional Refrigerant Charge .....................................................................................
2-15..............................................................................................................2-9. Tubing Length
2-15.......................................................................................................2-8. System Limitations
2-162-10. Check of Limit Density ...............................................................................................
2-19.........................2-12. Example of Tubing Size Selection and Refrigerant Charge Amount
2-21.........................................................................................2-13. Installing Distribution Joint
2-17........................................................................................................2-11. System Example
2-223. Electrical Wiring.................................................................................................................
2-223-2.
Recommended Wire Length and Wire Diameter for Power Supply System .................
2-223-1. General Precautions on Wiring ...................................................................................
2-233-3. Wiring System Diagrams .............................................................................................
2-263-4. Important Note When Wiring for Common Type .........................................................
2-293-5. Important Note When Wiring for Y1 Type.....................................................................
2-385. HOW TO PROCESS TUBING .............................................................................................
2-395-2. Connecting Tubing Between Indoor and Outdoor Units .............................................
2-385-1. Connecting the Refrigerant Tubing ............................................................................
2-405-3. Insulating the Refrigerant Tubing ...............................................................................
2-415-5. Finishing the Installation ..............................................................................................
2-415-4. Taping the Tubes ........................................................................................................
2-304. Installation Instructions.....................................................................................................
2-304-1. Selecting the Installation Site for Outdoor Unit ............................................................
2-314-2. ..................................................................Air Discharge Chamber for Top Discharge
2-314-3. ......................................................................Installing the Unit in Heavy Snow Areas
2-314-4. .......................................................Precautions for Installation in Heavy Snow Areas
4-5. 2-32Dimensions of Air-Discharge Chamber........................................................................
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2-374-10. Drainage Work...........................................................................................................
2-374-11. Routing the Tubing and Wiring ...................................................................................
2-30
Outdoor Unit .................................................................................................................
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Refer to the 2WAY VRF SYSTEM TECHNICAL DATA (TD831157)
Indoor Unit
2-34Dimensions of Snow Ducting ......................................................................................4-7.
4-6. Dimensions of Outdoor Unit with Air-Discharge Chamber (field supply) 2-32
..........................4-8. Dimensions of Outdoor Unit with Snow-Proof Ducting (field supply) 2-34
2-37..........................................................................................Installing the Outdoor Unit4-9.
TD831156-00_MINI_VRF_SYS.indb 1TD831156-00_MINI_VRF_SYS.indb 1 2012/01/31 14:38:402012/01/31 14:38:40