Mitsubishi Electric PUH-P10MYA, Technical & Service Manual

Page

Contents

1

PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT ......................................

1

[1] Storage of Piping Material ................................................................................................... 2

[2] Piping Machining ................................................................................................................. 3

[3] Necessary Apparatus and Materials and Notes on Their Handling ..................................... 4

[4] Brazing ................................................................................................................................. 5

[5] Airtightness Test .................................................................................................................. 6

[6] Vacuuming ........................................................................................................................... 6

[7] Charging of Refrigerant ....................................................................................................... 7

 2

SPECIFICATIONS ......................................................................................................................

8

 3

EXTERNAL DIMENSIONS .......................................................................................................

10

 4

ELECTRICAL WIRING DIAGRAM ............................................................................................

11

[1] Outdoor Unit ....................................................................................................................... 11

[2] Skelton of Indoor/Outdoor Connection .............................................................................. 12

 5

Technical Data of PUH-8/10YD to Meet LVD .........................................................................

13

[1] Standard Operation Data ................................................................................................... 13

[2] Cooling Capacity Curves ................................................................................................... 14

[3] Heating Capacity Curves ................................................................................................... 14

[4] Capacity Reduction Ratio due to Changes in Piping Length ............................................. 15

[5] Center of Gravity (Outdoor unit) ........................................................................................ 16

[6] NC Curve  (Outdoor unit) ................................................................................................... 17

 6

SERVICE DATA ........................................................................................................................

18

[1] Appearance of Equipment ................................................................................................. 18

[2] Refrigerant Circuit .............................................................................................................. 20

[3] Limitation of Refrigerant Piping Length .............................................................................. 20

[4] Refrigerant Piping .............................................................................................................. 21

[5] Refrigerant Charge ............................................................................................................ 21

[6] Operation Rage ................................................................................................................. 21

 7

CONTROL ................................................................................................................................

22

[1] Composition of Control ...................................................................................................... 22

[2] Control specifications ......................................................................................................... 23

[3] Function of switches and connectors (outdoor unit) .......................................................... 27

[4] Simple parts check method ............................................................................................... 35

[5] Reference Data .................................................................................................................. 36

[6] Troubleshooting of each part ............................................................................................. 37

[7] Emergency operation ......................................................................................................... 40

[8] Self-diagnosis and troubleshooting .................................................................................... 42

 8

Test run ....................................................................................................................................

51