Hitachi RAS-070HNBRMQ2 - Table of Contents

III
TABLE OF CONTENTS
1. SAFETY SUMMARY ............................................................................................................................. 1
2. Before Installation .................................................................................................................................. 4
2.1
Necessary Tools and Instrument List for Installation ................................................................... 4
2.2 Structure ...................................................................................................................................... 6
2.3
Refrigerant Cycle Diagram .......................................................................................................... 7
2.4 Combination of Indoor Unit and Outdoor Unit ............................................................................. 8
2.5
Transportation ............................................................................................................................. 9
2.6
Factory-Supplied Accessories ................................................................................................... ..9
3.
Outdoor Unit Installation ...................................................................................................................... 10
3.1
Installation Location and Precautions ........................................................................................ 10
3.2
Service Space ........................................................................................................................... 12
3.3
Installation Work ........................................................................................................................ 15
4.
Refrigerant Piping Work ...................................................................................................................... 17
4.1
Precaution for Refrigerant Piping .............................................................................................. 17
4.2
Model of Branch Pipe ................................................................................................................ 20
4.3
Refrigerant Piping Size.............................................................................................................. 21
4.4
Refrigerant Piping Work for Outdoor Unit .................................................................................. 23
4.5
Air-Tightness Test ..................................................................................................................... 25
4.6
Vacuuming ................................................................................................................................ 26
4.7
Additional Refrigerant Charge Calculation ................................................................................ 27
4.8
Additional Refrigerant Charge Work.......................................................................................... 28
4.9
Pressure Measurement ............................................................................................................. 28
5.
Electrical Wring .................................................................................................................................... 29
5.1 General Check .......................................................................................................................... 30
5.2
Electrical Wiring Connection ..................................................................................................... 30
5.3
Electrical Wiring for Outdoor Unit .............................................................................................. 32
6.
DIP Switch Setting of Outdoor Unit ..................................................................................................... 34
7.
Test Run .............................................................................................................................................. 36
7.1 Before Test Run ............................................................................................................................ 36
7.2 Test Run by DIP Switch of Outdoor Unit ....................................................................................... 36
7.3 Test Run by Wired Controller ........................................................................................................ 36
8.
Safety and Control Device Setting ....................................................................................................... 40