Toshiba MMY-MAP1204HT8JP-E, MMY-MAP1404HT8JP, MMY-MAP1404HT8JP-E, MMY-MAP1004HT8JP, MMY-MAP1604HT8JP-E Service Manual

SERVICE MANUAL

AIR-CONDITIONER (MULTI TYPE)

<SUPER MODULAR MULTI SYSTEM - i>
Outdoor Unit

Model name:

FILE NO. SVM-13024-2

MMY-MAP0804HT8(J)P
MMY-MAP1004HT8(J)P
MMY-MAP1204HT8(J)P
MMY-MAP1404HT8(J)P
MMY-MAP1604HT8(J)P

MMY-MAP0804HT8(J)P-E
MMY-MAP1004HT8(J)P-E
MMY-MAP1204HT8(J)P-E
MMY-MAP1404HT8(J)P-E
MMY-MAP1604HT8(J)P-E

MMY-MAP0804HT8(J)P-TR
MMY-MAP1004HT8(J)P-TR
MMY-MAP1204HT8(J)P-TR
MMY-MAP1404HT8(J)P-TR
MMY-MAP1604HT8(J)P-TR

<Heat Pump Model>

<4-way Cassette Type>
(MMU-AP***4HP-E) (Made in Thailand model) SVM-13-011

<2-way Cassette Type>
(MMU-AP

***

2WH) A10-007

<Concealed Duct Standard Type>
(MMD-AP

***

6BH-E) A12-005

<Slim Duct Type>
(MMD-AP0244SPH-E, AP0274SPH-E) A12-005

Fresh Air Intake Indoor Unit Type
(MMD-AP

****

HFE) A06-016

<Air to Air Heat Exchanger with DX Coil Unit Type>
(MMD-VN

*****

HEXE*) A10-022-2

High-wall Type
(MMK-AP

***

3H) (Made in Thailand model) SVM-09-059

Console Type
(MML-AP

****

NH-E) (Made in Thailand model) SVM-11-036

Other indoor units
(MM*-AP

*****H*

) A10-033

MMY-MAP0804HT7(J)P
MMY-MAP1004HT7(J)P
MMY-MAP1204HT7(J)P
MMY-MAP1404HT7(J)P
MMY-MAP1604HT7(J)P

MMY-MAP0804T8(J)P
MMY-MAP1004T8(J)P
MMY-MAP1204T8(J)P
MMY-MAP1404T8(J)P
MMY-MAP1604T8(J)P

MMY-MAP0804T8(J)P-T
MMY-MAP1004T8(J)P-T
MMY-MAP1204T8(J)P-T
MMY-MAP1404T8(J)P-T
MMY-MAP1604T8(J)P-T

MMY-MAP0804T8(J)P-SG
MMY-MAP1004T8(J)P-SG
MMY-MAP1204T8(J)P-SG
MMY-MAP1404T8(J)P-SG
MMY-MAP1604T8(J)P-SG

<Cooling Only Model>

MMY-MAP0804T8(J)P-ID
MMY-MAP1004T8(J)P-ID
MMY-MAP1204T8(J)P-ID
MMY-MAP1404T8(J)P-ID
MMY-MAP1604T8(J)P-ID

This service manual provides relevant explanations about new outdoor unit (SMMS-i).
Please refer to the following service manuals for each indoor units.

– 1 –

Contents

SAFETY CAUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

New Refrigerant (R410A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1 Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1-1. Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1-2. Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1-2-1. 4-way Cassette Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1-2-2. Compact 4-way Cassette Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

1-2-3. 1-way Cassette Type (Compact type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1-2-4. 1-way Cassette Type SH series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1-2-5. 2-way Cassette Type 2 series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

1-2-6. Concealed Duct Standard Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

1-2-7. Concealed Duct Standard Type 6 series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

1-2-8. Concealed Duct High Static Pressure Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

1-2-9. Slim Duct Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1-2-10. Slim Duct Type (AP024, AP027) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

1-2-11. Ceiling Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

1-2-12. High Wall Type 4MH series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

1-2-13. High Wall Type 3 series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

1-2-14. Floor Standing Cabinet Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

1-2-15. Floor Standing Concealed Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

1-2-16. Floor Standing Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1-2-17. Air to Air Heat Exchanger with DX Coil Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

1-2-18. Fresh Air Intake Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2 Parts Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

2-1. Outdoor Unit (50Hz model: MMY-MAP

***4*T8*P*

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

2-2. Outdoor Unit (60Hz model: MMY-MAP

***

4HT7*P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

2-3. Outdoor Inverter (50Hz model: MMY-MAP

***4*T8*P*

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

2-4. Outdoor Inverter (60Hz model: MMY-MAP

***

4HT7*P). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2-5. Parts Layout in Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

2-6. Parts Layout in Inverter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

2-7. Outdoor (Inverter) Print Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

2-7-1. Interface P.C. board (MCC-1606) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

2-7-2. Inverter P.C. board for compressor (MCC-1596) A3-IPDU . . . . . . . . . . . . . . . . . . . . . . . 56

2-7-3. Inverter P.C. board for fan (MCC-1610) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3 Refrigerant Piping Systematic Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

4 Combined Refrigerant Piping System Schematic Diagrams . . . . . . . . . . . . . . . . . 62

4-1. Normal Operation (COOL Mode / DEFROST Mode) -

High Outside Air Temperature (Roughly 20°C or Above) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

4-2. Normal Operation (COOL Mode) - Low Outside Air Temperature (Roughly Below 20°C). . . . . . 63

4-3. Normal Operation (HEAT Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

4-4. Emergency Operation (Cooling Operation under Header Outdoor Unit Backup Scenario) . . . . . 65

4-5. Emergency Operation (Heating Operation under Header Outdoor Unit Backup Scenario) . . . . . 66

4-6. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down Operation under

Follower Outdoor Unit Backup Scenario) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

– 2 –

5 Control Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

6 Applied Control and Functions (including Circuit Configuration) . . . . . . . . . . . . . 83

6-1. Indoor Controller Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6-1-1. When Wired (Simple) Remote Controller Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6-1-2. When Wireless Remote Controller Kit Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

6-1-3. When Both Main (Sub) Remote Controller and Wireless Remote Controller

Kit Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

6-2. Indoor Printed Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

6-3. Optional Connector Specifications of Indoor P.C. Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

6-4. Test Operation of Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

6-5. Method to Set Indoor Unit Function DN Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

6-6. Applied Control of Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

6-7. Applied control for Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

6-7-1. Outdoor Fan High Static Pressure Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

6-7-2. Priority Operation Mode Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

6-8. Applied Control of Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

6-8-1. Power peak-cut Control (Standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

6-8-2. Power peak-cut Control (Extended) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

6-8-3. Snowfall Fan Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

6-8-4. External master ON/OFF Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

6-8-5. Night operation (sound reduction) Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

6-8-6. Operation Mode Selection Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

6-8-7. Error/Operation Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

6-8-8. Compressor Operation Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

6-8-9. Operating Rate Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

7 TEST OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

7-1. Procedure and Summary of Test Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

7-2. Check Items before Test Operation (before powering-on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

7-3. Check at Main Power-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

7-4. Address Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

7-4-1. Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

7-4-2. Address Setup and Check Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

7-4-3. Address Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

7-4-4. Check after Address Setup when Central Control System Is Connected . . . . . . . . . . . 136

7-5. Troubleshooting in Test Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

7-5-1. A Check Code is Displayed on the Remote Controller . . . . . . . . . . . . . . . . . . . . . . . . . 137

7-5-2. Operation from the indoor remote controller is not accepted, and a check code is

displayed on the 7-segment display of the interface PC board of the header unit. . . . . 138

7-5-3. There is no display of a check code on the 7-segment display on the interface

PC board of the header unit, although there is indoor unit that is not accepting

operation from the indoor remote controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

7-5-4. In checking the number of connected outdoor units and connected indoor units

after address setup, a lower number of connected units is displayed. (There are

outdoor/indoor units that do not operate in a test operation.) . . . . . . . . . . . . . . . . . . . . 139

7-6. Test Operation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

7-6-1. Fan Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

7-6-2. Single cooling/Single heating Test Operation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

– 3 –

7-7. Service Support Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

7-7-1. Check Function for Connecting of Refrigerant and Control Lines . . . . . . . . . . . . . . . . . 146

7-7-2. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit . . . . . . . . . . . . . . . . . . 148

7-7-3. Error Clearing Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

7-7-4. Remote Controller Distinction Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

7-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit . . . . . . . . . . . . . 156

7-7-6. Pulse Motor Valve (PMV) Forced Open Fully/Close fully Function in Outdoor Unit . . . 156

7-7-7. Solenoid Valve Forced Open/Close Function in Outdoor Unit . . . . . . . . . . . . . . . . . . . . 157

7-7-8. Fan Operation Check in Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

7-7-9. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function . . . . . . . . . 159

7-7-10. Manual Adjustment Function of Outside Temperature (TO) Sensor . . . . . . . . . . . . . . . 160

7-7-11. Monitor Function of Remote Controller Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

8 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

8-1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

8-2. Troubleshooting Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

8-3. Troubleshooting Based on Information Displayed on Remote Controller . . . . . . . . . . . . . . . . . 171

8-4. Check Codes Displayed on Remote Controller and SMMS-i Outdoor Unit

(7-Segment Display on I/F Board) and Locations to Be Checked . . . . . . . . . . . . . . . . . . . . . . . 176

8-5. Diagnosis procedure for each check code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192

8-6. 7-Segment Display Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223

8-7. Oil Level Judgment Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229

8-8. Leakage/Clogging of Refrigerating Cycle Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

8-9. Sensor Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234

8-10. Pressure Sensor Output Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237

9 BACKUP OPERATION

(EMERGENCY OPERATION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

9-1. Note for Backup Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239

9-2. Compressor Backup Operation Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

9-3. Outdoor Unit Backup Operation Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241

9-3-1. Follower outdoor unit backup operation setting (failure of follower outdoor unit) . . . . . 241

9-3-2. Header outdoor unit backup operation setting (failure of header outdoor unit) . . . . . . . 243

9-4. Cooling-Season Outdoor Unit Backup Operation Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245

10 OUTDOOR UNIT REFRIGERANT RECOVERY METHOD . . . . . . . . . . . . . . . . . . . . 246

10-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down) . . . . . . . . . . . . . . . . . . . . . . . . . 246

10-1-1. Note for refrigerant recovery operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

10-1-2. Refrigerant recovery procedure A (Case of no outdoor unit backup operation setting) 246

10-1-3. Refrigerant recovery procedure B (Case of outdoor unit backup operation setting) . . . 249

10-2. How to Operate System While Failed Outdoor Unit Being Repaired . . . . . . . . . . . . . . . . . . . . . 251

10-3. Work procedure after Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

11 REPLACING COMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

11-1. Compressor Replacement Procedure (Outline) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

11-2. Replacement of Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254

11-3. Check Procedure to Search Cause of Compressor Oil Shortage . . . . . . . . . . . . . . . . . . . . . . . 258

– 4 –

12 OUTDOOR UNIT PARTS REPLACEMENT METHODS . . . . . . . . . . . . . . . . . . . . . . 261

13 P.C. BOARD EXCHANGE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

13-1. Replacement of Indoor P.C. Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274

13-2. Replacement of Outdoor P.C. Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

13-2-1. List of service P.C. boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

13-2-2. Configuration of inverter assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281

13-2-3. Interface board (MCC-1606) replacement method . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

13-2-4. Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure . . . . . . . . . . . . . . . . . . 283

13-2-5. Fan IPDU P.C. Board (MCC-1610) Replacement Procedure . . . . . . . . . . . . . . . . . . . . 285

13-2-6. Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure . . . . . . . . . . . . . . . 286

14 EXPLODED DIAGRAM/PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

– 5 –

SAFETY CAUTION

Please read carefully through these instructions that contain important information which complies with the
“Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them.

Some of the details provided in these instructions differ from the service manual, and the instructions provided
here take precedence.

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service Person

The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified
service person. When any of these jobs is to be done, ask a qualified installer or qualified service person to do
them for you.
A qualified installer or qualified service person is an agent who has the qualifications and knowledge
described in the table below.

• The qualified service person is a person who installs, repairs, maintains, relocates and removes
the air conditioners made by Toshiba Carrier Corporation. He or she has been trained to install,
repair, maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation
or, alternatively, he or she has been instructed in such operations by an individual or individuals
who have been trained and is thus thoroughly acquainted with the knowledge related to these
operations.

• The qualified service person who is allowed to do the electrical work involved in installation,
repair, relocation and removal has the qualifications pertaining to this electrical work as
stipulated by the local laws and regulations, and he or she is a person who has been trained in
matters relating to electrical work on the air conditioners made by Toshiba Carrier Corporation
or, alternatively, he or she has been instructed in such matters by an individual or individuals
who have been trained and is thus thoroughly acquainted with the knowledge related to this
work.

• The qualified service person who is allowed to do the refrigerant handling and piping work
involved in installation, repair, relocation and removal has the qualifications pertaining to this
refrigerant handling and piping work as stipulated by the local laws and regulations, and he or
she is a person who has been trained in matters relating to refrigerant handling and piping work
on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has
been instructed in such matters by an individual or individuals who have been trained and is
thus thoroughly acquainted with the knowledge related to this work.

• The qualified service person who is allowed to work at heights has been trained in matters
relating to working at heights with the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who
have been trained and is thus thoroughly acquainted with the knowledge related to this work.

• The qualified installer is a person who installs, maintains, relocates and removes the air
conditioners made by Toshiba Carrier Corporation. He or she has been trained to install,
maintain, relocate and remove the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such operations by an individual or individuals
who have been trained and is thus thoroughly acquainted with the knowledge related to these
operations.

• The qualified installer who is allowed to do the electrical work involved in installation, relocation
and removal has the qualifications pertaining to this electrical work as stipulated by the local
laws and regulations, and he or she is a person who has been trained in matters relating to
electrical work on the air conditioners made by Toshiba Carrier Corporation or, alternatively, he
or she has been instructed in such matters by an individual or individuals who have been
trained and is thus thoroughly acquainted with the knowledge related to this work.

• The qualified installer who is allowed to do the refrigerant handling and piping work involved in
installation, relocation and removal has the qualifications pertaining to this refrigerant handling
and piping work as stipulated by the local laws and regulations, and he or she is a person who
has been trained in matters relating to refrigerant handling and piping work on the air
conditioners made by Toshiba Carrier Corporation or, alternatively, he or she has been
instructed in such matters by an individual or individuals who have been trained and is thus
thoroughly acquainted with the knowledge related to this work.

• The qualified installer who is allowed to work at heights has been trained in matters relating to
working at heights with the air conditioners made by Toshiba Carrier Corporation or,
alternatively, he or she has been instructed in such matters by an individual or individuals who
have been trained and is thus thoroughly acquainted with the knowledge related to this work.

Qualified installer

Qualified service
person

Agent Qualifications and knowledge which the agent must have

– 6 –

Definition of Protective Gear

When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective
gloves and ‘safety’ work clothing.
In addition to such normal protective gear, wear the protective gear described below when undertaking the
special work detailed in the table below.
Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns,
electric shocks and other injuries.

Work undertaken

All types of work

Protective gloves
‘Safety’ working clothing

Gloves to provide protection for electricians and from heat
Insulating shoes
Clothing to provide protection from electric shock

Helmets for use in industry

Shoes with additional protective toe cap
Gloves to provide protection for electricians and from heat

Electrical-related work

Work done at heights
(50 cm or more)

Transportation of heavy objects
Repair of outdoor unit

Protective gear worn

noitanalpxEnoitacidnI

DANGER

Indicates contents assumed that an imminent danger causing a death or serious injury of
the repair engineers and the third parties when an incorrect work has been executed.

Indicates possibilities assumed that a danger causing a death or serious injury of the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.

Indicates contents assumed that an injury or property damage (*) may be caused on the
repair engineers, the third parties, and the users due to troubles of the product after work
when an incorrect work has been executed.

WARNING

CAUTION

noitanalpxEnoitacidnI

Indicates prohibited items (Forbidden items to do)
The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do)
The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (Including danger / warning)
The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

The important contents concerned to the safety are described on the product itself and on this Service
Manual.

Please read this Service Manual after understanding the described items thoroughly in the following contents
(Indications / Illustrated marks), and keep them.

[Explanation of indications]

* Property damage: Enlarged damage concerned to property, furniture, and domestic animal / pet

[Explanation of illustrated marks]

– 7 –

Warning Indications on the Air Conditioner Unit

[Confirmation of warning label on the main unit]

Confirm that labels are indicated on the specified positions
If removing the label during parts replace, stick it as the original.

noitpircseDnoitacidni gninraW

WARNING

WARNING

ELECTRICAL SHOCK HAZARD

Disconnect all remote electric
power supplies before servicing.

BURST HAZARD

Open the service valves before the
operation, otherwise there might be the
burst.

ELECTRICAL SHOCK HAZARD

Disconnect all remote electric power supplies
before servicing.

WARNING

WARNING

Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.

Moving parts.
Do not operate unit with grille removed.
Stop the unit before the servicing.

CAUTION

CAUTION

High temperature parts.
You might get burned when removing
this panel.

High temperature parts.
You might get burned when removing this panel.

CAUTION

CAUTION

Do not touch the aluminium fins of the unit.
Doing so may result in injury.

Do not climb onto the fan guard.

Doing so may result in injury.

Do not touch the aluminium fins of the unit.
Doing so may result in injury.

CAUTION

CAUTION

BURST HAZARD

Open the service valves before the operation,
otherwise there might be the burst.

CAUTION

CAUTION

Do not climb onto the fan guard.

Doing so may result in injury.

– 8 –

PRECAUTIONS FOR SAFETY

The manufacturer shall not assume any liability for the damage caused by not observing the description of this
manual.

DANGER

Turn off

braeaker

Electric

shock hazard

Prohibition

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical
parts with the electrical parts box cover of one or more of the indoor units and the service panel of the
outdoor unit removed in order to find out exactly where the trouble lies, wear insulated heat-resistant
gloves, insulated boots and insulated work overalls, and take care to avoid touching any live parts.
You may receive an electric shock if you fail to heed this warning. Only qualified service person (*1) is
allowed to do this kind of work.

Stay on

protection

Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit
breaker for both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may
result.

Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit
breaker to the OFF position.
Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with
the interior parts.
Only a qualified installer (*1) or qualified service person (*1) is allowed to remove the intake grille of the
indoor unit or service panel of the outdoor unit and do the work required.

Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit breaker
to the OFF position, and place a “Work in progress” sign on the circuit breaker.

When cleaning the filter or other parts of the indoor unit, set the circuit breaker to OFF without fail, and
place a “Work in progress” sign near the circuit breaker before proceeding with the work.

When you have noticed that some kind of trouble (such as when an error display has appeared, there
is a smell of burning, abnormal sounds are heard, the air conditioner fails to cool or heat or water is
leaking) has occurred in the air conditioner, do not touch the air conditioner yourself but set the circuit
breaker to the OFF position, and contact a qualified service person. Take steps to ensure that the
power will not be turned on (by marking “out of service” near the circuit breaker, for instance) until
qualified service person arrives. Continuing to use the air conditioner in the trouble status may cause
mechanical problems to escalate or result in electric shocks or other failure.

When you access inside of the service panel to repair electric parts, wait for about five minutes after turning
off the breaker. Do not start repairing immediately.Otherwise you may get electric shock by touching
terminals of high-voltage capacitors. Natural discharge of the capacitor takes about five minutes.

Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair or
removal work is being carried out.
There is a danger of electric shocks if the circuit breaker is set to ON by mistake.

Before operating the air conditioner after having completed the work, check that the electrical parts box
cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to
the ON position.
You may receive an electric shock if the power is turned on without first conducting these checks.

– 9 –

WARNING

General

Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the
air conditioner by following its instructions.

Only qualified service person (*1) is allowed to repair the air conditioner.
Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water
leaks and / or other problems.

Do not use any refrigerant different from the one specified for complement or replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in a
failure or explosion of the product or an injury to your body.

Wear protective gloves and safety work clothing during installation, servicing and removal.

Only a qualified installer (*1) or qualified service person (*1) is allowed to carry out the electrical work
of the air conditioner.
Under no circumstances must this work be done by an unqualified individual since failure to carry out
the work properly may result in electric shocks and / or electrical leaks.

When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and other
protective clothing.

When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs,
wear gloves to provide protection for electricians and from heat, insulating shoes and clothing to
provide protection from electric shocks.
Failure to wear this protective gear may result in electric shocks.

Electrical wiring work shall be conducted according to law and regulation in the community and
installation manual. Failure to do so may result in electrocution or short circuit.

Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heights
using a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.

When working at heights, use a ladder which complies with the ISO 14122 standard, and follow the
procedure in the ladder’s instructions.
Also wear a helmet for use in industry as protective gear to undertake the work.

When working at heights, put a sign in place so that no-one will approach the work location, before
proceeding with the work.
Parts and other objects may fall from above, possibly injuring a person below.

When executing address setting, test run, or troubleshooting through the checking window on the
electric parts box, put on insulated gloves to provide protection from electric shock. Otherwise you may
receive an electric shock.

Do not touch the aluminum fin of the outdoor unit.
You may injure yourself if you do so. If the fin must be touched for some reason, first put on protective
gloves and safety work clothing, and then proceed.

Do not climb onto or place objects on top of the outdoor unit.
You may fall or the objects may fall off of the outdoor unit and result in injury.

When transporting the air conditioner, wear shoes with additional protective toe caps.
When transporting the air conditioner, do not take hold of the bands around the packing carton.

You may injure yourself if the bands should break.
Be sure that a heavy unit (10 kg or heavier) such as a compressor is carried by two persons.
This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.

Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit,
otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected,
contact an electric engineer for rework.

After completing the repair or relocation work, check that the ground wires are connected properly.
Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.

Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for
telephone wires.

Check earth

wires.

Prohibition of
modification.

Do not modify the products. Do not also disassemble or modify the parts.
It may cause a fire, electric shock or injury.

Use specified

parts.

When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy the
specifications given in the Service Manual (or use the parts contained on the parts list in the
Service Manual).
Use of any parts which do not satisfy the required specifications may give rise to electric shocks,
smoking and / or a fire.

– 10 –

Do not bring

a child close

to the

equipment.

Insulating

measures

No fire

Refrigerant

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical
parts with the electrical parts box cover of one or more of the indoor units and the service panel of the
outdoor unit removed in order to find out exactly where the trouble lies, put a sign in place so that no­one will approach the work location before proceeding with the work. Third-party individuals may enter
the work site and receive electric shocks if this warning is not heeded.

Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then apply
a watercut method, otherwise a leak or production of fire is caused at the users’ side.

When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil
that coats the pipes may otherwise burn.
When repairing the refrigerating cycle, take the following measures.

1) Be attentive to fire around the cycle. When using a gas stove, etc., be sure to put out fire before work;
otherwise the oil mixed with refrigerant gas may catch fire.

2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide
poisoning may be caused.

3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the
inflammables.

The refrigerant used by this air conditioner is the R410A.
Check the used refrigerant name and use tools and materials of the parts which match with it.

For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the
outdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed
from one of the former R22.

For an air conditioner which uses R410A, never use other refrigerant than R410A. For an air
conditioner which uses other refrigerant (R22, etc.), never use R410A.
If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle
and an injury due to breakage may be caused.

When the air conditioner has been installed or relocated, follow the instructions in the Installation
Manual and purge the air completely so that no gases other than the refrigerant will be mixed in the
refrigerating cycle.
Failure to purge the air completely may cause the air conditioner to malfunction.

Do not charge refrigerant additionally. If charging refrigerant additionally when refrigerant gas leaks, the
refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner
characteristics or refrigerant over the specified standard amount is charged and an abnormal high
pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.
Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming,
and then newly recharge the specified amount of liquid refrigerant.
In this time, never charge the refrigerant over the specified amount.

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than
R410A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal high
pressure generates in the refrigerating cycle resulted in cause of injury due to breakage.

Install the refrigerant pipe securely during the installation work before operating the air conditioner.
If the compressor is operated with the valve open and without refrigerant pipe, the compressor sucks
air and the refrigeration cycles is over pressurized, which may cause a injury.

After the installation work, confirm that refrigerant gas does not leak.
If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious
gas may be generated.

Never recover the refrigerant into the outdoor unit. When the equipment is moved or repaired, be sure
to recover the refrigerant with recovering device.
The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage
or injury is caused.

Assembly /

Wiring

After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before.
Perform the work so that the cabinet or panel does not catch the inner wires.
If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused
at user’s side.

Insulator

check

After the work has finished, be sure to use an insulation tester set (500 V Megger) to check the resistance is
1 MΩ or more between the charge section and the non-charge metal section (Earth position).
If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.

– 11 –

Ventilation

When the refrigerant gas leaks during work, execute ventilation.
If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant
and the closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure to
execute ventilation.

Compulsion

When the refrigerant gas leaks, find up the leaked position and repair it surely.
If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten the
service valve, otherwise the refrigerant gas may leak into the room.
The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though
the refrigerant gas itself is innocuous.
When installing equipment which includes a large amount of charged refrigerant such as a multi air
conditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks.
If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused.

Tighten the flare nut with a torque wrench in the specified manner.
Excessive tighten of the flare nut may cause a crack in the flare nut after a long period, which may
result in refrigerant leakage.

Nitrogen gas must be used for the airtight test.
The charge hose must be connected in such a way that it is not slack.
For the installation / moving / reinstallation work, follow to the Installation Manual.

If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused.

Check after

repair

Once the repair work has been completed, check for refrigerant leaks, and check the insulation
resistance and water drainage.
Then perform a trial run to check that the air conditioner is running properly.

After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock
or injury may be caused. For a check, turn off the power breaker.

After repair work (installation of front panel and cabinet) has finished, execute a test run to check there
is no generation of smoke or abnormal sound.
If check is not executed, a fire or an electric shock is caused. Before test run, install the front panel and cabinet.

Be sure to fix the screws back which have been removed for installation or other purposes.

Do not

operate the

unit with the

valve closed.

Check the following matters before a test run after repairing piping.

• Connect the pipes surely and there is no leak of refrigerant.

• The valve is opened.

Running the compressor under condition that the valve closes causes an abnormal high pressure
resulted in damage of the parts of the compressor and etc. and moreover if there is leak of refrigerant
at connecting section of pipes, the air is sucked and causes further abnormal high pressure resulted in
burst or injury.

Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner. It
is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric
shocks, injury, water leakage, noise and / or vibration may result.

Check the following items after reinstallation.

1) The earth wire is correctly connected.

2) The power cord is not caught in the product.

3) There is no inclination or unsteadiness and the installation is stable.

If check is not executed, a fire, an electric shock or an injury is caused.
When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe.

Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will cause air
or other gas to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level, and
possibly resulting in rupture, injury or other trouble.

Check after

reinstallation

When the service panel of the outdoor unit is to be opened in order for the compressor or the area
around this part to be repaired immediately after the air conditioner has been shut down, set the circuit
breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes
and other parts will be very hot to the touch. In addition, before proceeding with the repair work, wear
the kind of insulated heat-resistant gloves designed to protect electricians.

Take care not to get burned by compressor pipes or other parts when checking the cooling cycle while
running the unit as they get heated while running. Be sure to put on gloves providing protection for
electric shock and heat.

When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor, inverter or the
areas around these parts to be repaired immediately after the air conditioner has been shut down, set the
circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.
If you fail to heed this warning, you will run the risk of burning yourself because the fan motor, reactor,
inverter heat sink and other parts will be very hot to the touch.
In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant gloves
designed to protect electricians.

Cooling check

– 12 –

Installation

Only a qualified installer (*1) or qualified service person (*1) is allowed to install the air conditioner. If
the air conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage,
noise and/or vibration may result.

Before starting to install the air conditioner, read carefully through the Installation Manual, and follow its
instructions to install the air conditioner.

Be sure to use the company-specified products for the separately purchased parts. Use of non­specified products may result in fire, electric shock, water leakage or other failure. Have the installation
performed by a qualified installer.

Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit.
Capacity overflow may occur on the terminal block and may result in fire.

Use wiring that meets the specifications in the Installation Manual and the stipulations in the local
regulations and laws. Use of wiring which does not meet the specifications may give rise to electric
shocks, electrical leakage, smoking and/or a fire.

Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas.
If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.

If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked
refrigerant gas comes in contact with fire, noxious gas may be generated.

Install a circuit breaker that meets the specifications in the installation manual and the stipulations in
the local regulations and laws.

Install the circuit breaker where it can be easily accessed by the qualified service person (*1).
If you install the unit in a small room, take appropriate measures to prevent the refrigerant from

exceeding the limit concentration even if it leaks. Consult the dealer from whom you purchased the air
conditioner when you implement the measures. Accumulation of highly concentrated refrigerant may
cause an oxygen deficiency accident.

Do not place any combustion appliance in a place where it is directly exposed to the wind of air
conditioner, otherwise it may cause imperfect combustion.

Explanations given to user

If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit
breaker to the OFF position, and contact a qualified service person to have the repairs done.
Do not set the circuit breaker to the ON position until the repairs are completed.

Relocation

• Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner.
It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks,
injury, water leakage, noise and / or vibration may result.

• When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe.
Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating will
cause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level,
and possibly resulting in reputing, injury, etc.

(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person”

– 13 –

Declaration of Conformity

Manufacturer:

TOSHIBA CARRIER (THAILAND) CO., LTD.
144 / 9 Moo 5, Bangkadi Industrial Park, Tivanon Road,
Amphur Muang, Pathumthani 12000, Thailand

Outdoor unit
<Heat Pump Model>

MMY-MAP0804HT8P-E
MMY-MAP1004HT8P-E
MMY-MAP1204HT8P-E
MMY-MAP1404HT8P-E
MMY-MAP1604HT8P-E

MMY-MAP0804HT8JP-E
MMY-MAP1004HT8JP-E
MMY-MAP1204HT8JP-E
MMY-MAP1404HT8JP-E
MMY-MAP1604HT8JP-E

<Cooling Only Model>
MMY-MAP0804T8P-E
MMY-MAP1004T8P-E
MMY-MAP1204T8P-E
MMY-MAP1404T8P-E
MMY-MAP1604T8P-E

MMY-MAP0804T8JP-E
MMY-MAP1004T8JP-E
MMY-MAP1204T8JP-E
MMY-MAP1404T8JP-E
MMY-MAP1604T8JP-E

Toshiba EMEA Engineering Director
Toshiba Carrier UK Ltd.
Porsham Close, Belliver Industrial Estate,
PLYMOUTH, Devon, PL6 7DB.
United Kingdom

Authorized Representative / Nick Ball

TCF holder:

Hereby declares that the machinery described below:

Generic Denomination: Air Conditioner

Model / type:

MMY-MAP0804HT8P-TR
MMY-MAP1004HT8P-TR
MMY-MAP1204HT8P-TR
MMY-MAP1404HT8P-TR
MMY-MAP1604HT8P-TR

MMY-MAP0804HT8JP-TR
MMY-MAP1004HT8JP-TR
MMY-MAP1204HT8JP-TR
MMY-MAP1404HT8JP-TR
MMY-MAP1604HT8JP-TR

Commercial name: Super Modular Multi System Air Conditioner

Complies with the provisions of the “Machinery” Directive (Directive 2006/42/EC) and the regulations
transposing into national law

Complies with the provisions of the following harmonized standard:

EN 378-2: 2008+A2:2012

NOTE

This declaration becomes invalid if technical or operational modifications are introduced without the
manufacturer’s consent.

– 14 –

Model

Sound power level (dBA)

Weight (kg)

Cooling Heating

MMY-MAP0804HT8(J)P

77 78 242

MMY-MAP0804HT7(J)P
MMY-MAP0804HT8(J)P-E
MMY-MAP0804HT8(J)P-TR
MMY-MAP1004HT8(J)P

78 79 242

MMY-MAP1004HT7(J)P
MMY-MAP1004HT8(J)P-E
MMY-MAP1004HT8(J)P-TR
MMY-MAP1204HT8(J)P

82 83 242

MMY-MAP1204HT7(J)P
MMY-MAP1204HT8(J)P-E
MMY-MAP1204HT8(J)P-TR
MMY-MAP1404HT8(J)P

82 83 329

MMY-MAP1404HT7(J)P
MMY-MAP1404HT8(J)P-E
MMY-MAP1404HT8(J)P-TR
MMY-MAP1604HT8(J)P

83 84 329

MMY-MAP1604HT7(J)P
MMY-MAP1604HT8(J)P-E
MMY-MAP1604HT8(J)P-TR

Specifications

MMY-MAP0804T8(J)P

MMY-MAP0804T8(J)P-E
MMY-MAP0804T8(J)P-T
MMY-MAP0804T8(J)P-ID
MMY-MAP0804T8(J)P-SG

77 − 241

MMY-MAP1004T8(J)P

MMY-MAP1004T8(J)P-E
MMY-MAP1004T8(J)P-T
MMY-MAP1004T8(J)P-ID
MMY-MAP1004T8(J)P-SG

78 − 241

MMY-MAP1204T8(J)P

MMY-MAP1204T8(J)P-E
MMY-MAP1204T8(J)P-T
MMY-MAP1204T8(J)P-ID
MMY-MAP1204T8(J)P-SG

82 − 241

MMY-MAP1404T8(J)P

MMY-MAP1404T8(J)P-E
MMY-MAP1404T8(J)P-T
MMY-MAP1404T8(J)P-ID
MMY-MAP1404T8(J)P-SG

82 − 329

MMY-MAP1604T8(J)P

MMY-MAP1604T8(J)P-E
MMY-MAP1604T8(J)P-T
MMY-MAP1604T8(J)P-ID
MMY-MAP1604T8(J)P-SG

83 − 329

– 15 –

CARRYING IN THE OUTDOOR UNIT

CAUTION

Handle the outdoor unit carefully, observing the following items.

• When using a forklift or other machinery for loading/unloading in transportation, insert the prongs of the forklift
into the rectangular holes for handling as shown below.

• When lifting up the unit, insert a rope able to bear the unit’s weight into the rectangular holes for handling, and
tie the unit from 4 sides.
(Apply padding in positions where the rope comes into contact with the outdoor unit so that no damage is caused
to the outer surface of the outdoor unit.)
(There are reinforcing plates on the side surfaces, so the rope cannot be passed through.)

Front /Back

GOOD NO GOOD NO GOOD

Plaster

Rope

Plaster

Rectangular
holes for
lifting

Reinforcing
plate

Prongs of the
forklift

Rectangular

holes for
handling

GOOD

NO GOOD

Side

– 16 –

Weight centre and weight

Weight centre of an outdoor unit

No. Model type X (mm) Y (mm) Z (mm) Mass (kg)

(A)

MAP080

500 390 645MAP100

MAP120

(B)

MAP140

605 350 700 329

MAP160

Z

X

Z

X

Y

Y

(A)

(B)

Anchor bolt position

700

Anchor bolt position

920

Anchor bolt position

755

Anchor bolt position

755

H/P 242

C/O 241

– 17 –

SELECTION OF PIPE SIZE

Coupling size of brazed pipe

(Unit: mm)

Screw size and tightening torque

Connected section

External size Internal size

Standard outer dia.

of connected

copper pipe

Connected section

Min. thickness

of coupling

External size Internal size

Min. depth of

insertion

Oval value

Standard outer dia.

(Allowable difference)

CFKG

6.35 6.35 (±0.03) 6.45 ( ) 7 6 0.06 or less 0.50

9.52 9.52 (±0.03) 9.62 ( ) 8 7 0.08 or less 0.60

12.70 12.70 (±0.03) 12.81 ( ) 9 8 0.10 or less 0.70

15.88 15.88 (±0.03) 16.00 ( ) 9 8 0.13 or less 0.80

19.05 19.05 (±0.03) 19.19 ( ) 11 10 0.15 or less 0.80

22.22 22.22 (±0.03) 22.36 ( ) 11 10 0.16 or less 0.82

28.58 28.58 (±0.04) 28.75 ( ) 13 12 0.20 or less 1.00

34.92 34.90 (±0.04) 35.11 ( ) 14 13 0.25 or less 1.20

38.10 38.10 (±0.05) 38.31 ( ) 15 14 0.27 or less 1.26

41.28 41.28 (±0.05) 41.50 ( ) 15 14 0.28 or less 1.35

Screw size

Tightening torque

(N•m)

0.3 ot 5.26Mlanimret ylppus rewoP

6.6 ot 5.58Mwercs htraE

1.2 to 1.45.3Mlanimret eriw noitacinummoC

K

ØC

G

ØF

+0.04

-0.02
+0.04

-0.02
+0.04

-0.02
+0.04

-0.02
+0.03

-0.03
+0.03

-0.03
+0.06

-0.02
+0.04

-0.04
+0.08

-0.02
+0.08

-0.02

– 18 –

Adding refrigerant

After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional charging of
refrigerant.

Calculation of additional refrigerant charge amount

Refrigerant charge amount at shipment from the factory does not include the refrigerant for pipes at the local site.
For refrigerant to be charged in pipes at the local site, calculate the amount and charge it additionally.

NOTE

If the additional refrigerant amount indicates minus as the result of calculation, use the air conditioner without
additional refrigerant.

Table 1

Heat pump

type

Outdoor unit type MAP080 MAP100 MAP120 MAP140 MAP160

Charging amount (kg) 11.5

Cooling only

type

Outdoor unit type MAP080 MAP100 MAP120 MAP140 MAP160

Charging amount (kg) 10.5 10.5 10.5 11.5 11.5

Additional refrigerant charge

amount at local site

=

Real length of liquid pipe

×

Additional refrigerant charge

amount per 1m liquid pipe

(Table 1)

+

Corrective amount of refrigerant

depending on HP of co-

operating outdoor units

(Table 2)

2.221.919.517.215.94.6)mm( .aid epip diuqiL

Additional refrigerant amount/1m liquid
pipe (kg/m)

0.025 0.055 0.105 0.160 0.250 0.350

– 19 –

Table 2

Charging of refrigerant

• Keeping the valve of the outdoor unit closed, be sure to charge the liquid refrigerant into the service port at the
liquid side.

• If the specified amount of refrigerant cannot be charged, fully open the valves of the outdoor unit at liquid and
gas sides, operate the air conditioner in COOL mode, and then charge refrigerant into service port at the gas
side. In this time, choke the refrigerant slightly by operating the valve of the canister to charge liquid refrigerant.

• The liquid refrigerant may be charged suddenly, therefore be sure to charge refrigerant gradually.

Combined HP (HP) Combined outdoor units (HP)

C (Corrective amount

of refrigerant) (kg)

Standard type

8 8HP––– 1.5
10 10HP – – – 2.5
12 12HP – – – 3.5
14 14HP – – – 8.5
16 16HP – – – 10.5
18 10HP 8HP – – 0.0
20 10HP 10HP – – 3.0
22 12HP 10HP – – 5.0
24 12HP 12HP – – 7.5
26 16HP 10HP – – 8.5
28 16HP 12HP – – 9.5
30 16HP 14HP – – 11.5
32 16HP 16HP – – 12.5
34 12HP 12HP 10HP – 3.0
36 12HP 12HP 12HP – 4.0
38 16HP 12HP 10HP – 6.0
40 16HP 12HP 12HP – 7.0
42 16HP 14HP 12HP – 8.0
44 16HP 16HP 12HP – 10.0
46 16HP 16HP 14HP – 12.0
48 16HP 16HP 16HP – 14.0

High Efficiency type

16 8HP 8HP – – 0.0
24 8HP 8HP 8HP – -4.0
26 10HP 8HP 8HP – -4.0
28 10HP 10HP 8HP – -2.0
30 10HP 10HP 10HP – 0.0
32 8HP 8HP 8HP 8HP -6.0
34 10HP 8HP 8HP 8HP -6.0
36 10HP 10HP 8HP 8HP -6.0
38 10HP 10HP 10HP 8HP -6.0
40 10HP 10HP 10HP 10HP -5.0
42 12HP 10HP 10HP 10HP -4.0
44 12HP 12HP 10HP 10HP -2.0
46 12HP 12HP 12HP 10HP 0.0
48 12HP 12HP 12HP 12HP 2.0

– 20 –

This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to New Refrigerant

The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of
refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refrigerant
or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant
during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility
to cause a serious accident. Use the tools and materials exclusive to R410A to purpose a safe work.

2. Cautions on Installation/Service

(1) Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of the former
refrigerant in order to prevent mixture of them.

(2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are

specified for R410A.

(3) In the installation time, use clean pipe materials and work with great attention so that water and others do not

mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes.

Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)
(4) For the earth protection, use a vacuum pump for air purge.
(5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant.

(If using gas for charging, composition of the refrigerant changes and then characteristics of the air conditioner

change.)

3. Pipe Materials

For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate
pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a minimum.

(1) Copper pipe

(2) Joint

The flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installation

of the air conditioner. However clear impurities when using them.

<Piping>

The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.
When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without
seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed, discolored
(especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)

<Flare nut>

Use the flare nuts which are attached to the air conditioner unit.

New Refrigerant (R410A)

– 21 –

4. Tools

(1) Required Tools for R410A

Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.

Accordingly, the tools to be used are classified into the following three types.

1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))

2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)

3) Tools commonly used for R410A and for conventional refrigerant (R22)

The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Explanation of symbols

: Newly prepared (It is necessary to use it exclusively with R410A, separately from those for R22 or R407C.)
: Former tool is available.

(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection

margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

(Note 2) Charging cylinder for R410A is being currently developed.

reporPegasUsloot desU use of tools/parts

Gauge manifold

Vacuuming, charging refrigerant
and operation check

Exclusive to R410A

A014R ot evisulcxEesoh gnigrahC
Charging cylinder Charging refrigerant Unusable (Use the Refrigerant charging balance.)
Gas leak detector Checking gas leak Exclusive to R410A
Vacuum pump Vacuum drying Usable if a counter-flow preventive adapter is attached

)elcitra gnitsixE( 22Rgniyrd muucaVwolfretnuoc htiw pmup muucaV

ezis gnitsujda yb elbasUsepip fo gnissecorp eralFloot eralF

)elcitra gnitsixE( 22Rsepip fo gnissecorp

gnidneBredneB
Refrigerant recovery device Recovering refrigerant Exclusive to R410A
Torque wrench Tightening flare nut Exclusive to Ø12.7mm and Ø15.9mm

)elcitra gnitsixE( 22Rsepip gnittuCrettuc epiP

Refrigerant canister Charging refrigerant

Exclusive to R410A
Enter the refrigerate name for identification

Welding machine/Nitrogen gas
cylinder

)elcitra gnitsixE( 22Rsepip fo gni

dleW

Refrigerant charging balance Charging refrigerant R22 (Existing article)

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as
the general tools.

(1) Vacuum pump

Use vacuum pump by attaching vacuum pump

adapter.
(2) Torque wrench
(3) Pipe cutter
(4) Reamer
(5) Pipe bender
(6) Level vial

(7) Screwdriver (+, –)
(8) Spanner or Monkey wrench
(9) Hole core drill
(10)Hexagon wrench (Opposite side 4mm)
(11)Tape measure
(12)Metal saw

Also prepare the following equipments for other installation method and run check.
(1) Clamp meter
(2) Thermometer

(3) Insulation resistance tester
(4) Electroscope

– 22 –

1 Wiring Diagrams

1-1. Outdoor Unit

Models: MMY-MAP0804*, MAP1004*, and MAP1204*

– 23 –

Models: MMY-MAP1404* and MAP1604

*

1-2. Indoor Unit

Models: MMU-AP0094HP*, AP0124HP*, AP0154HP*, AP0184HP*, AP0244HP*, AP0274HP*, AP0304HP*,
AP0364HP*, AP0484HP*, and AP0564HP*

– 24 –

1-2-1. 4-way Cassette Type

– 25 –

1-2-2. Compact 4-way Cassette Type

Models: MMU-AP0074MH

∗

, AP0094MH∗, AP0124MH∗, AP0154MH∗, and AP0184MH

∗

BLK

P301

Fan motor
Indoor temp. sensor
Temp. sensor
Temp. sensor
Temp. sensor
Louver motor
Drain pump motor
Float switch
Drain control relay
Pulse motor valve

Symbol

FM

TA
TC1
TCJ
TC2

LM1, LM2

DP

FS

RY30 2

PMV

Parts name

Color

indication

RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
BRW: BROWN
GRN : GREEN

1. indicates the terminal bolock letter.
Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site

3. indicates a control P.C. board.

S(N)R(L)

Power supply

single phase

220-240V, 50Hz

220V, 60Hz

Indoor unit

earth screw

CN67
(BLK)

CN304

(GRY)

RY30 2

DP

CN68
(BLU)

CN334

(WHI)

Motor

drive circuit

CN333

(WHI)

Flow selector

unit earth screw

noitpO)evirdnaF(

Adapter for

wireless

remote controller

Wireed

remote controller

CN44

(BRW)

CN50
(WHI)

CN66
(WHI)

CN32
(WHI)

CN61
(YEL)

Control P.C. board

for Indoor unit

MCC-1402

CN60
(WHI)

CN81
(BLK)

CN33
(WHI)

CN20
(BLU)

CN70
(WHI)

CN73

(RED)

CN80

(GRN)

CN41
(BLU)

CN40
(BLU)

CN309

(YEL)

CN101

(BLK)

CN102

(RED)

CN104

(YEL)

CN34

(RED)

CN100
(BRW)

TC1

FS

TA TC J T C2

CN82 (BLU)

LM1

LM2

Outdoor

unit

PNL

EXCT

Filter

GRL

CN001

(WHI)

WHI BLK

BLU

BLU

BLK

BLK

T10

WHI

RED

1

2

3

4

5

1

4

5

1

3

5

1 2 3 4 5 6

1 2 3 4 5 6

6 4 3 1 2 5

6 4 3 1 2 5

1 2 3

3 11 2 1 2 1 2

1 3

1 2 3

1 3

1 2 1 2 1 2

1

3

5

1 2

1 2

1

2

1

3

5

5

1

2

3

4

5

654321 54321654321

3 3

1 1

3 3

1 1

3

1

2

1

2

1

5

4

3

2

1

21

1

2

1

2

(CHK)

2

1

(DISP)

CN71

CN72

2

1

1

2

3

1

2

3

1

2

U2U1

BAU2U1

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

5

4

3

2

1

RY30 3

Fuse

T6.3A

250V

~

Fuse
T3.15A
250V

~

DC20V
DC15V
DC12V
DC 7 V

Powe r
supply
circuit

PMV

– 26 –

1-2-3. 1-way Cassette Type (Compact type)

Models: MMU-AP0074YH

∗

, AP0094YH∗, and AP0124YH

∗

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

5

4

3

2

1

5

4

3

2

1

9 8

7

6

9

8

7

6

FAN

CN083

(WHI)

DP

(BLU)

CN068

DM

CN304

(GRY)

Heater

CN301

(BLK)

CN066

(WHI)

WHI

RED

BLU

BLU

BLU

CN067

(BLK)

Indoor control P.C. board

1

2

1

2

TA

TCJ

1

2

121

2

CN100

(BRW)

1

2

1

2

33

CN080

(GRN)

PNL

EXCT

1

2

CN073

(RED)

1

2

Filter

CN070

(WHI)

CN081

(BLK)

CN060

(WHI)

Option

CN032

(WHI)

CN075

(WHI)

CN074

(WHI)

TR

1

2

1

234

5

1

2

3

TC1

1 2 3 4 5 6

CN061

(YEL)

Fan drive

1 2 3 4 5 61 2 3 4 5 6

1 2

3

1

2

3

1 3

1

2

1

2

1 2

3

1

2 3

1 2

3

1

2

3

1 2 3

1

2

3

4 5 6

CN050

(WHI)

CN041

(BLU)

CN040

(BLU)

1 2

1 2

CN044

(BRW)

CN01

(WHI)

CN02

(BLU)

Network

adaptor

(Option)

1 2

1

2

3 4 5

1 2

1 2

1

1

2

2

2 1

2

3

3 1

CN03

(RED)

MCC-1401

RY004

1

2

3

1

2

RY002

RY006

RY007

RY005

1

2

BA

Y
X

S(N)
R(L)

U2

1 2

Remote controller

CN1

(WHI)

Power supply

Single phase

220-240V 50Hz

220V 60Hz

Indoor unit

Earth screw

Outdoor

unit

BLU

BLU

RED

WHI

BLK

BLK

U

1

U2U

1

Power supply

circuit

Network

adaptor

P.C. board

Symbol

FM

RC

TR

LM

TA

TC1,TCJ

RY001

RY002

RY004

RY005~007

FS

DM

PMV

Parts name

Fan motor

Running capacitor

Power transformer

Louver motor

Indoor temp sensor

Temp sensor

Flap motor control relay

Drain pump control relay

Heater control relay

Fan motor control relay

Float switch

Drain pump motor

Pulse Motor Valve

LM

(GRN)

CN033

LM

1 2 3

1

2 3

FS

(RED)

CN030

PMV

(BLU)

CN082

FS

1 2 3

1 2 3

1

2 312

3

4 5 6

4

5 6

6

4

3

6

4 3

1

2 5

1 2 5

RY001

AI-NET

central control

terminal

TR

Fuse

T5.0A

1

2

3

1

2

3

CN309

(YEL)

AC IN

1

2

3

1

2

3

2

1

2

1

2

1

2

1

PMV

1

2

1

2

3

4

3

4

5

6

5

6

FM

YEL

BLU

ORN

BLK

RED

HML UL

RC

1. indicates the terminal block, letter at inside

indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

Closed end

connector

1

2 3 4 5 6

1 2 3 4 5 6

1 2 3 4 5 6

1 2 3 4 5 6

CN01

(WHI)

CN02

(YEL)

Sub P.C. board

MCC-1520

Color

indication

RED : RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BLK : BLACK

GRY : GRAY

PNK : PINK

ORN : ORANGE

BRW : BROWN

GRN : GREEN

Line Filter

Flow selector

unit earth

screw

– 27 –

1-2-4. 1-way Cassette Type SH series

Models: MMU-AP0154SH

∗

, AP0184SH∗, and AP0244SH

∗

1

3

1

3

CN104

(YEL)

TA

2

1

2

1

CN102

(RED)

TCJ

2

1

2

1

CN101

(BLK)

CN100

(BRW)

1

3

CN80

(GRN)

TC2

PNL

EXCT

2

1

CN73

(RED)

2

2

1

Filter

CN70

(WHI)

2

1

2

1

TC1

1 2 1 23 4 5 6 1 2 3 4 5

CN061

(YEL)

1 2 3 4 5 6

CN60

(WHI)

CN32

(WHI)

Fan

drive

T10

GRL

CN20

(BLU)

1 2 3 4 5

Option

CN81

(BLK)

1 2 3 4 5

CN50

(WHI)

CN309

(YEL)

CN02

(BLU)

MCC-1401

AI-NET

TR

Adapter for

wireless remote

controller

Network adapter

(Option)

CN001(WHI)

CN01

(WHI)

CN03

(RED)

CN40

(BLU)

CN41

(BLU)

1

1

1

1

2

2

1

1

2

X

Y

A

B

2

3

3

3

2

1

3

1

321
3

1

3

1

3

1

3

1

3

1

3

1

2

2

CN66

(WHI)

CN68

(BLU)

CN304

(GRY)

CN67

(BLK)

P301

BLK

RY303

RY302

2

1

1

1

DP

1

1

2

2

Wired

remote

controller

Outdoor

unit

WHI

WHI

RED

WHI

RED

BLU

BLU

BLK

BLK

WHI

BLK

BLK

BA

U

2

U

1

U

2

S(N)R(L)

U

1

Power supply

single phase

220-240V 50Hz

220V 60Hz

Indoor unit

earth screw

Closed-end

connector

Flow selector unit

earth screw

5 4

1

5

5

5

4

3

3

3

2

1

1

1

CN333

(WHI)

Fuse

T3.15A

250V~

CN82

(BLU)

CN112

(WHI)

CN111

(WHI)

CN110

(WHI)

CN71 (CHK)

High ceiling setup

LM

CN33

(WHI)

CN334

(WHI)

FM

1 2 3 4 5 6

1

1

1

2

1 2

1 2 1 2 1 2

1

2

2

2

3

3

3

4

4

4

5

3

CN34

(RED)

FS

1 2 3

1 3

4

5

1

2

3

4

5

1 2 3 4 5

1

2 3

4

5

5

5

6

6

6

PMV

Motor drive

circuit

Fuse

T6.3A 250V~

Power

supply

circuit

DC20V

DC15V

DC12V

DC7V

CN72 (DISP)

1. indicates the terminal bolock letter.

Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at side

3. indicates a control P.C. board.

FM

TA

TC1

TCJ

TC2

LM

DP

FS

RY302

PMV

TR

Fan motor

Indoor temp sensor

Temp sensor

Temp sensor

Temp sensor

Louver motor

Drain pump motor

Float switsh

Drain control relay

Pulse motor valve

Transformer

Symbol

Parts name

Color

indication

RED: RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BLK : BLACK

GRY: GRAY

PNK : PINK

ORN: ORANGE

BRN: BRWN

GRN: GREEN

Control P.C. board

for indoor unit

MCC-1402

– 28 –

1-2-5. 2-way Cassette Type 2 series

Models: MMU-AP0072WH, AP0092WH, AP0122WH, AP0152WH, AP0182WH, AP0242WH,
AP0272WH, AP0302WH, AP0482WH

– 29 –

1-2-6. Concealed Duct Standard Type

Models: MMD-AP0074BH

∗

, AP0094BH∗, AP0124BH∗, AP0154BH∗, AP0184BH∗, AP0244BH∗,

AP0274BH

∗

, AP0304BH∗, AP0364BH∗, AP0484BH∗, and AP0564BH

∗

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

1 2 3 4 5

1 2 3

4

5

6

1 2 3 4 5 6

6 4

3

1 2 5

6

4 3

1 2 5

3

1

321

CN34

(RED)

FS

CN33

(WHI)

CN82

(BLU)

DC20V

CN68

(BLU)

CN304

(GRY)

CN66

(WHI)

CN44

(BRW)

CN67

(BLK)

Reactor

PMV

Indoor control P.C. board

1

2

1

2

TA

1

2

1

2

TCJ

1

2

1

2

TC2

CN100

(BRN)

1

2

1

2

33

CN80

(GRN)

PNL

EXCT

1

2

CN73

(RED)

1

2

(Signal output)(Fan drive)

CN70

(WHI)

CN20

(BLU)

1

2

3

TC1

1

2

3

4

5

CN81

(BLK)

CN60

(WHI)

CN32

(WHI)

CN61

(YEL)

CN50

(WHI)

Adaputor for wired

remote controller

CN309

(YEL)

CN41

(BLU)

CN40

(BLU)

T10

1 2 3

4

5

1 21 2 3

4 5 6

1 2 3 4

5

1 2 31 2

3

1

2

3

1 2 3

1 2

1 2

1 2

3

1

3

1

2 2

4 5 6

1

2

1 2

RY302

1

2

3

1

2

3

1

2

3

1

2

3

1

2

1

2

1

2

3

~

+

~

–

Fuse

T6.3A

250V~

Fuse

T3.15A

250V~

DC15V

DC12V

DC7V

P301

BLK

RED

WHI

WHI

WHI

RED

Wired remote

controller

1 2

BA

S(N)
R(L)

U2

1 2

CN1

(WHI)

CN001

(WHI)

Indoor unit power supply

Single phase

220-240V 50Hz

220V 60Hz

Indoor unit

Earth screw

WHI

Outdoor unit

BLK WHI BLK

BLK

BLU

BLU

BLK

BLK

TR

WHI

U1

U2U1

DM

Power

supply

circuit

Motor drive

circuit

CN01

(WHI)

CN02

(BLU)

CN03

(RED)

Network

adaptor

(Option)

121

2

1

2

1

2

X Y

3

322

1

1

Network

adaptor

P.C. board

Symbol

FM

TA

TC1,TC2,TCJ

DM

FS

RY302

PMV

Parts name

Fan motor

Indoor temp sensor

Indoor temp sensor

Drain pump motor

Float switch

Drain pump control relay

Pulse Motor Valve

Color identification

1. indicates the terminal block, letter at inside

indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

RED : RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BRW : BROWN

BLK : BLACK

GRY : GRAY

PNK : PINK

ORN : ORANGE

GRN : GREEN

Closed end

connector

CN333

(WHI)

CN334

(WHI)

1

1

2

2

3
4

4

5

5

1

3 5

1

3

1

2 3

1 2 3

5

1
1

5

4

5

4

FM

Flow selector

unit earth

screw