Table Of Contents - Toyotomi Kuro MTN A228DV Service Manual

Dc inverter split wall-mounted type air conditioner

Table of Contents

CONTENTS

1. Precaution ................................................................................................................................................. 1

1.1 Safety Precaution ................................................................................................................................................ 1

1.2 Warning ............................................................................................................................................................... 1

2. Function .................................................................................................................................................... 3

3. Dimension ................................................................................................................................................. 5

3.1 Indoor Unit ........................................................................................................................................................... 5

3.2 Outdoor Unit ........................................................................................................................................................ 6

4. Specification ............................................................................................................................................. 7

5. Refrigerant cycle diagram ....................................................................................................................... 8

6. Wiring diagram ......................................................................................................................................... 9

6.1 Indoor Unit ........................................................................................................................................................... 9

6.2 Outdoor Unit ........................................................................................................................................................ 9

7. Installation details .................................................................................................................................. 10

7.1 Wrench torque sheet for installation .................................................................................................................. 11

7.2 Connecting the cables ....................................................................................................................................... 11

7.3 Pipe length and the elevation ............................................................................................................................ 11

7.4 Air purging of the piping and indoor unit ............................................................................................................ 11

7.5 Pumping down (Re-installation) ......................................................................................................................... 13

7.6 Re-air purging (Re-installation) .......................................................................................................................... 14

7.7 Balance refrigerant of the 2-way, 3-way valves ................................................................................................. 15

7.8 Evacuation ......................................................................................................................................................... 16

7.9 Gas charging ..................................................................................................................................................... 17

8. Operation characteristics ...................................................................................................................... 18

8.1 MTN/MTG A228DV ............................................................................................................................................ 18

8.2 MTN/MTG A235DV ............................................................................................................................................ 19

9. Electronic function ................................................................................................................................. 20

9.1 Abbreviation....................................................................................................................................................... 20

9.2 Display function ................................................................................................................................................. 20

9.3 Protection .......................................................................................................................................................... 20

9.4 Fan-Only Mode .................................................................................................................................................. 21

9.5 Cooling Mode .................................................................................................................................................... 22

9.6 Drying mode ...................................................................................................................................................... 23

9.7 Heating mode .................................................................................................................................................... 23

9.8 Auto mode function ............................................................................................................................................ 27

9.9 Forced operation function .................................................................................................................................. 27

9.10 Action of 4-way valve ....................................................................................................................................... 27

9.11 Two speeds outdoor fan function ..................................................................................................................... 27

9.12 Timer function .................................................................................................................................................. 28

9.13 Sleep function mode ........................................................................................................................................ 28

9.14 Auto-Restart function ....................................................................................................................................... 28

9.15 Ionizer/Plasma dust collector function(optional) .............................................................................................. 29

9.16 Outdoor chassis heating cable ....................................................................................................................... 29

10. Troubleshooting ................................................................................................................................... 30

10.1 Indoor Unit Error Display ................................................................................................................................. 31