Table Of Contents - York IDH072B21S Series Installation And Maintenance Manual

Inverter-driven multi-split system heat pump air conditioners, ducted high static

Table of Contents

1. Introduction .....................................................................................................................................................1

2. Safety Instructions ..........................................................................................................................................1

3. Before Installation ...........................................................................................................................................7

3.1 Combination of Outdoor Unit and Indoor Unit ........................................................................................7

3.2 Transportation and Handling ..................................................................................................................7

3.3 Factory-Supplied Accessories ................................................................................................................8

3.4 Necessary Tools and Instrument List for Installation ..............................................................................8

4. Installation Location ........................................................................................................................................9

5. Installation Work .............................................................................................................................................9

5.1 Suspension Bolts ....................................................................................................................................9

5.2 Suspension Bolts and Piping Connections ...........................................................................................10

5.3 Mounting Indoor Unit ............................................................................................................................10

5.4 Adjusting of Unit Level .......................................................................................................................... 11

5.5 Connecting Supply Duct .......................................................................................................................12

5.6 Setting of External Pressure .................................................................................................................12

5.7 Installation of Auxiliary Heater (Field-Supplied) ...................................................................................13

5.7.1

Selection of Auxiliary Heater .......................................................................................................14

5.7.2

Auxiliary Heater Connection .......................................................................................................15

5.7.3

Setting for Auxiliary Heater ........................................................................................................15

6. Refrigerant Piping Work ................................................................................................................................16

6.1 Piping Materials ....................................................................................................................................16

6.2 Piping Connection ................................................................................................................................17

7. Condensate Piping ........................................................................................................................................19

8. Electrical Wiring ............................................................................................................................................21

8.1 General Check .....................................................................................................................................21

8.2 Electrical Wiring Capacity .....................................................................................................................22

8.2.1

Field Minimum Wire Sizes for Power Supply ..............................................................................22

8.2.2

Details of Electrical Wiring Connection .......................................................................................22

8.3 Position of Electrical Wiring Connection ...............................................................................................24

8.4 Wiring Connection ................................................................................................................................28

8.5 DIP Switch Settings ..............................................................................................................................30

8.6 Selecting Static Pressure with Electrical Wiring Connection ................................................................31

8.7 Function Selection by Wired Controller ................................................................................................32

8.8 Setback Operation ................................................................................................................................34

9. Test Run ........................................................................................................................................................35

9.1 Before Test Run ....................................................................................................................................35

9.2 Test Run ...............................................................................................................................................35

9.3 Alarm Code ..........................................................................................................................................37

10. Fan Performance Curves ..............................................................................................................................38

P01432Q-rev.1