Hitachi RAS-2WHVRP - Page 8

General Index
TCGB0123 rev.2 - 10/2019VIII
9.2 System wiring diagram ........................................................................................................................ 110
9.3 Electrical connection ............................................................................................................................111
9.3.1 Wiring size .................................................................................................................................................... 111
9.3.2 Minimum requirements of the protection devices .........................................................................................112
9.4 Transmission wiring ............................................................................................................................. 113
9.4.1 YUTAKI units ................................................................................................................................................113
9.5 Optional indoor unit wiring (accessories) ............................................................................................ 114
9.6 Setting of DIP switches and RSW switches ........................................................................................ 117
9.6.1 Outdoor unit RAS-(2/2.5/3)WHVRP and RASM-(2-3)VRE ...........................................................................117
9.6.1.1 Location of DIP switches and rotary switches .................................................................................117
9.6.1.2 Function of DIP switches and rotary switches .................................................................................117
9.6.1.3 LED indication .................................................................................................................................119
9.6.2 YUTAKI unit ..................................................................................................................................................119
9.6.2.1 Location of DIP switches and rotary switches .................................................................................119
9.6.2.2 Function of DIP switches and rotary switches .................................................................................119
9.6.2.3 LED indication ................................................................................................................................ 122
10. Optional functions ................................................................................................. 123
10.1 Indoor unit ..........................................................................................................................................124
10.1.1 Optional functions by DSW setting ............................................................................................................ 124
10.1.2 Optional functions by Unit controller (PC-ARFH1E) .................................................................................. 126
10.1.2.1 Optional functions for Space Heating or Space Cooling .............................................................. 126
10.1.2.2 Optional functions for DHW .......................................................................................................... 126
10.1.2.3 Optional functions for Heat pump ................................................................................................. 127
10.1.2.4 Optional functions for Unit controller (PC-ARFH1E) .................................................................... 128
10.1.3 Optional external input/output conguration signals .................................................................................. 128
10.2 Additional functions by accessory sensor ...........................................................................................131
10.3 Output/input signals for outdoor units and YUTAKI M units ................................................................132