Hitachi YUTAKI Series - General Index 0; Table of Contents

5
General index
SMGB0066 rev.0 - 12/2009
Contents
Service Manual
0
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1. Units installation .............................................................................................................................15
1.1. RHUE-(3~6)A(V)HN ....................................................................................................................17
1.1.1. Transportation ........................................................................................................................................17
1.1.2. Center of gravity .....................................................................................................................................18
1.1.3. Installation space ...................................................................................................................................19
1.1.4. Place provision .......................................................................................................................................20
1.1.5. Optional parts .........................................................................................................................................22
1.2. Accessories Installation ...............................................................................................................27
1.2.1. Pump kit ................................................................................................................................................27
1.2.2. WEH - Water Electric Heater ..................................................................................................................28
1.2.3. DHWT - Domestic Hot Water Tank .........................................................................................................30
2. Water pipe installation ....................................................................................................................33
2.1 General notes ..............................................................................................................................34
2.2. Piping work connection considerations .......................................................................................35
2.2.1. Minimum water volume description ........................................................................................................35
2.2.2. Correction factor due to use of glycol .....................................................................................................37
2.3. Water control ...............................................................................................................................37
2.4. Water check valve .......................................................................................................................38
2.5. Accessories hydraulic installation................................................................................................39
2.5.1. Pump kit .................................................................................................................................................39
2.5.2. WEH- Water Electric Heater ...................................................................................................................40
2.5.3. DHWT- Domestic Hot Water Tank ..........................................................................................................42
2.5.4. Water drain discharge connection ..........................................................................................................44
3. Electrical wiring connections and diagram .....................................................................................45
3.1. General check .............................................................................................................................46
3.2. Electrical wiring connection .........................................................................................................47
3.2.1. Field minimum wire sizes for the power source .....................................................................................48
3.2.2. Main switches and fuses ........................................................................................................................49
3.3. Setting the DIP switches .............................................................................................................49
3.4. LED indication .............................................................................................................................53
3.5. Accessories electrical installation ................................................................................................54
3.5.1. Pump kit .................................................................................................................................................54
3.5.2. WEH- Water Electric Heater ...................................................................................................................57
3.5.3. DHWT- Domestic Hot Water Tank ..........................................................................................................59