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

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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

<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

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

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

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

CAUTION

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

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

BURST HAZARD

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

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

(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

ØC

ØF

+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.

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.)

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

TA TC1 TCJ TC2

LM1, LM2

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

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

TA TC J T C2

CN82 (BLU)

LM1

LM2

Outdoor

unit

PNL

EXCT

Filter

GRL

CN001

(WHI)

WHI BLK

BLU

BLK

T10

WHI

RED

1 2 3 4 5 6

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 2

654321 54321654321

3 3

1 1

3 3

1 1

(CHK)

(DISP)

CN71

CN72

U2U1

BAU2U1

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)

9 8

FAN

CN083

(WHI)

(BLU)

CN068

CN304

(GRY)

Heater

CN301

(BLK)

CN066

(WHI)

WHI

RED

BLU

CN067

(BLK)

Indoor control P.C. board

TCJ

121

CN100

(BRW)

CN080

(GRN)

PNL

EXCT

CN073

(RED)

Filter

CN070

(WHI)

CN081

(BLK)

CN060

(WHI)

Option

CN032

(WHI)

CN075

(WHI)

CN074

(WHI)

234

TC1

1 2 3 4 5 6

CN061

(YEL)

Fan drive

1 2 3 4 5 61 2 3 4 5 6

1 2

1 3

1 2

2 3

1 2

1 2 3

4 5 6

CN050

(WHI)

CN041

(BLU)

CN040

(BLU)

1 2

CN044

(BRW)

CN01

(WHI)

CN02

(BLU)

Network

adaptor

(Option)

1 2

3 4 5

1 2

2 1

3 1

CN03

(RED)

MCC-1401

RY004

RY002

RY006

RY007

RY005

Y X

S(N) R(L)

1 2

Remote controller

CN1

(WHI)

Power supply

Single phase

220-240V 50Hz

220V 60Hz

Indoor unit

Earth screw

Outdoor

unit

BLU

RED

WHI

BLK

U2U

Power supply

circuit

Network

adaptor

P.C. board

Symbol

TC1,TCJ

RY001

RY002

RY004

RY005~007

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

(GRN)

CN033

1 2 3

2 3

(RED)

CN030

PMV

(BLU)

CN082

1 2 3

2 312

4 5 6

5 6

4 3

2 5

1 2 5

RY001

AI-NET

central control

terminal

Fuse

T5.0A

CN309

(YEL)

AC IN

PMV

YEL

BLU

ORN

BLK

RED

HML UL

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

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

∗

CN104

(YEL)

CN102

(RED)

TCJ

CN101

(BLK)

CN100

(BRW)

CN80

(GRN)

TC2

PNL

EXCT

CN73

(RED)

Filter

CN70

(WHI)

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

Adapter for

wireless remote

controller

Network adapter

(Option)

CN001(WHI)

CN01

(WHI)

CN03

(RED)

CN40

(BLU)

CN41

(BLU)

321 3

CN66

(WHI)

CN68

(BLU)

CN304

(GRY)

CN67

(BLK)

P301

BLK

RY303

RY302

Wired

remote

controller

Outdoor

unit

WHI

RED

WHI

RED

BLU

BLK

WHI

BLK

S(N)R(L)

Power supply

single phase

220-240V 50Hz

220V 60Hz

Indoor unit

earth screw

Closed-end

connector

Flow selector unit

earth screw

5 4

CN333

(WHI)

Fuse

T3.15A

250V~

CN82

(BLU)

CN112

(WHI)

CN111

(WHI)

CN110

(WHI)

CN71 (CHK)

High ceiling setup

CN33

(WHI)

CN334

(WHI)

1 2 3 4 5 6

1 2

1 2 1 2 1 2

CN34

(RED)

1 2 3

1 3

1 2 3 4 5

2 3

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.

TC1

TCJ

TC2

RY302

PMV

Fan motor

Indoor 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

1 2 3 4 5 6

6 4

1 2 5

4 3

1 2 5

321

CN34

(RED)

CN33

(WHI)

CN82

(BLU)

DC20V

CN68

(BLU)

CN304

(GRY)

CN66

(WHI)

CN44

(BRW)

CN67

(BLK)

Reactor

PMV

Indoor control P.C. board

TCJ

TC2

CN100

(BRN)

CN80

(GRN)

PNL

EXCT

CN73

(RED)

(Signal output)(Fan drive)

CN70

(WHI)

CN20

(BLU)

TC1

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

1 21 2 3

4 5 6

1 2 3 4

1 2 31 2

1 2 3

1 2

2 2

4 5 6

1 2

RY302

–

Fuse

T6.3A

250V~

Fuse

T3.15A

250V~

DC15V

DC12V

DC7V

P301

BLK

RED

WHI

RED

Wired remote

controller

1 2

S(N) R(L)

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

BLK

WHI

U2U1

Power

supply

circuit

Motor drive

circuit

CN01

(WHI)

CN02

(BLU)

CN03

(RED)

Network

adaptor

(Option)

121

X Y

322

Network

adaptor

P.C. board

Symbol

TC1,TC2,TCJ

RY302

PMV

Parts name

Fan motor

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)

3 4

3 5

2 3

1 2 3

1 1

Flow selector

unit earth

screw

– 30 –

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

Models : MMD-AP0076BH

∗

, AP0096BH∗, AP0126BH∗, AP0156BH∗, AP0186BH∗, AP0246BH∗,

AP0276BH

∗

, AP0306BH∗, AP0366BH∗, AP0486BH∗, AP0566BH

∗

– 31 –

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

Models: MMD-AP0184H

∗

, AP0244H∗, AP0274H∗, AP0364H∗, and AP0484H

∗

TC1

TC2

CN080

(GRN)

CN101

(BLK)

CN073

(RED)

CN070

(WHI)

5 4 3

8 7 6

FAN

CN083

(WHI)

(BLU)

CN068

CN304

(GRY)

CN066

(WHI)

CN067

(BLK)

PNL

EXCT

Filter

CN082

(BLU)

CN060

(WHI)

Option

CN032

(WHI)

CN075

(WHI)

CN074

(WHI)

T10

654

321

432

134

CN081

(BLK)

345

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 3

1 2

2 3

4 5

CN050

(WHI)

CN041

(BLU)

CN040

(BLU)

CN044

(BRW)

1 2 3 4 5

RY00 4

P301

123

RY00 2

RY00 6

RY00 7

RY00 5

S(N)

R(L)

1 2

Remote controller

CN1

(WHI)

Power supply

Single phase

220-240V 50Hz

220V 60Hz

Indoor unit

Earth screw

Outdoor unit

Power

supply

circuit

Symbol

TC1,TC2,TCJ

RY005~007

RY001

RY002

PMV

43F1

Parts name

Fan motor

Running capacitor

Transformer

Indoor temp sensor

Tem p s ens o r

Fan motor control relay

Flap motor control relay

Drain control relay

Pulse Motor Valve

Fuse

Fan motor control relay

Drain pump motor

Float switch

Sold

separately

(GRN)

CN033

2 3

CN100

(BRN)

1 231 2 3

1 2

1 2 3

1 2

TCJ

CN102

(RED)

121 2

CN104

(YEL)

CN030

(RED)

1 2

RY00 1

EMG

Fuse

T5.0A

T10A,250V~

123 123

CN309

(YEL)

123 123

REDWHI

HML UL

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.

4. When attaching a drain pump, exchange CN030 connector with a connector

of the float switch.

5. A part is connected to the terminal block.

When exchanging to the outside static pressure necessary at the local site,

check the terminal No. and lead color of the fan motor in the below diagram,

and then exchange the lead wire indicated by the arrow mark ( ),

6. Pay attention to change static pressure because the outside static pressure of

H tap in 50 or 60Hz.

PMV

(Option)

CN01

(WHI)

CN02

(BLU)

WHI

RED

GRY

WHI

RED

BLU

ORN

BLK

BRN

GRY

YEL

RED

RED F

RED

WHI

43F1

CN03

(RED)

MCC-1401

Network adaptor

(Option)

1 2

X Y

3 3

211

43F1

Spark

killer

43F1

2 3

WHI

BLK

BLU

ORN

BRN

GRY

RED

49F

Indoor control P.C. board

Closed

end

connector

Closed end

connector

Wired for MMD-AP0481 only

(BRN Wire)

Motor over heating protection switch

Color

indication

RED : RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BLK : BLACK

GRY : GRAY

PNK : PINK

ORN : ORANGE

BRW : BROWN

GRN : GREEN

1 2 3 4 5 6

1 2

3 4 5 6

3 4

CN01

(WHI)

CN02

(YEL)

Sub P.C. board

MCC-1520

Flow selector

unit earth

screw

– 32 –

Models: MMD-AP0724H∗ and AP0964H

∗

TRTATC1,TC2,TC3

RY005~007

RY001

RY002

PMV

F1~3

43F1,43F2

Fan motor

Running capacitor

Transformer

Indoor temp sensor

Temp sensor

Fan motor control relay

Louver control relay

Drain control relay

Pulse motor valve

Fuse for fan motor

Fan motor control relay

Drain pump motor

Float switch

Sold separately

Symbol

Parts name

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. indicate the control p.c. board.

4. When installing the drain pump connector

the froat switch connector to CN030 connector.

5. Position is connected to terminal block when change to

static pressure. Exchange the lead wire of arrow

position after check the terminal number as figure

and lead wire's color of fan motor.

6. When midifiy the high tap, to care the static pressure are

differ by 50Hz or 60Hz.

CN080

(GRN)

PNL

EXCT

3344556

4 4

5 5

6 6

1 1

CN073

(RED)

FILTER

CN070

(WHI)

CN081

(BLK)

CN082

(BLU)

CN100

(BRW)

CN101

(BLK)

CN030

(RED)

TC1

TC2

CN102

(RED)

TCJ

CN104

(YEL)

PMV

5 3

9 5

RY007

P301

(BLK)

RED

Spark Killer

WHI

RED

YEL

BLK

WHI

GRY

RED

BLU

ORN

RY004

(GRY)

CN304

(YEL)

CN309

FUSE

T5.0A 250V~

RY006

RY005

M LUL

X Y

211

1 2

1 2 3

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

1 2 3 4 5

CN066

(WHI)

CN067

(BLK)

AC IN RED

WHI

CN044

(BRW)

EMG

Remote Controller

Power supply

single phase

220-240V 50Hz

220V 60Hz

Indoor unit

earth screw

Closed-end

connector

Closed-end

connector

Line Filter

WHI

RED

WHI

RED

WHI

CN01(WHI)

CN03(RED)

CN02

(BLU)

CN040

(BLU)

CN041

(BLU)

CN050

(WHI)

CN061

(YEL)

CN032

(WHI)

FAN

DRIVE

OPTION

CN060

(WHI)

BLU

BLK

A B

Network Adapter

(Option)

Control P.C. board

for Indoor unit

MCC-1403

MCC-1401

CN1

CN074

(WHI)

CN075

(WHI)

Power supply

circuit

CN068

(BLU)

CN033

(GRN)

FAN

CN083

(WHI)

RY002

RY001

R(L)

S(N)

(Option)

43F2

43F1

49F

T10.0A, 250V~

RED

43F1

43F2

FAN3

(RED)

ORW

RED

ORW

YEL

WHI

RED

GRY

WHI

RED

GRY

BLU

ORN

1 2 341 2

3 4

FM3

43F2

FAN2

(BLU)

YEL

WHI

RED

GRY

WHI

RED

GRY

BLU

ORN

1 2 3

FM2

F1 F2

F3 F4

43F1

FAN1

(WHI)

YEL

WHI

RED

GRY

WHI

RED

GRY

BLU

ORN

1 2 3 4

FM1

Motor over heating

protection switch

Fan motor inside

wiring diagram

Color

indication

RED : RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BLK : BLACK

GRY : GRAY

PNK : PINK

ORN : ORANGE

BRW : BROWN

GRN : GREEN

U1 U2

Outdoor unit

F1F2F3

Terminal

No.

YEL

BLU

ORN

Fan motor

wiring

69(7)

137(14)

196(20)

Static pressure

Pa (mmAg)

Setting from factory

Note

2 3

5 6

1 2 3 4 5

CN01

(YEL)

CN02

(YEL)

Sub P.C. board

MCC-1520

S.K

– 33 –

1-2-9. Slim Duct Type

Models: MMD-AP0074SPH

∗

, AP0094SPH∗, AP0124SPH∗, AP0154SPH∗, and AP0184SPH

∗

Control P.C. board

for undoor unit

MCC-1402

TC1,TC2,TCJ

RY302

PMVDMFS

Fan motor

Indoor temp sensor

Temp sensor

Drain control relay

Pulse motor valve

Drain pump motor

Float switch

Symbol

Parts name

5 415

CN333

(WHI)

CN82

(BLU)

(External static pressure setup)

CN33

(WHI)

CN34

(RED)

Non Drain pump type

("SH" Type)

Drain pump type

("SPH" Type)

CN112

(WHI)

CN334

(WHI)

4 5 6

1 2

CN 111

(WHI)

1 2

CN110

(WHI)

1 2 1 2

5 3

1 2 3

1 3

CN34

(RED)

1 2

4 5

PMV

CN104

(YEL)

CN102

(RED)

TCJ

CN101

(BLK)

CN100

(BRW)

CN80

(GRN)

TC2

PNL

EXCT

CN73

(RED)

221

CN70

(WHI)

CN20

(BLU)

TC1

3 4

CN81

(BLK)

1 2

3 4

CN50

(WHI)

CN309

(YEL)

1 2

3 4 5

CN60

(WHI)

CN32

(WHI)

Option

1 2

Fan drive

1 2

3 4

5 6

CN61

(YEL)

CN41

(BLU)

CN40

(BLU)

CN44

(BRW)

2 3

5 6

BLU

BLK

CN66

(WHI)

WHI

RED

P301

CN67

(BLK)

Motor drive

circuit

CN304

(GRY)

RY302

CN68

(BLU)

CN68

(BLU)

Fuse

T6.3A

250V~

Drain pump type

("SPH" Type)

Non Drain pump type

("SH" Type)

BLK

RED

WHI

Fuse

T3.15A

250V~

Power

supply

circuit

DC20V

Power supply

220-240V~, 50Hz

220V~, 60Hz

Indoor unit

Earth screw

Closed-end

connector

R(L) S(N)

Flow

Selector unit

Earth screw

Outdoor unit

Wired remote

controller

U1 U2

DC15V

DC12V

DC7V

CN71

CN72

(CHK)

(DISP)

1. indicates the terminal bolock.

Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the

wiring at side

3. indicate a control P.C. board.

Color

indication

RED : RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BLK : BLACK

GRY : GRAY

PNK : PINK

ORN : ORANGE

BRN : BRWN

GRN : GREEN

– 34 –

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

Models: MMD-AP0244SPH∗, MMD-AP0274SPH

∗

– 35 –

1-2-11. Ceiling Type

Models: MMC-AP0154H

∗

, AP0184H∗, AP0244H∗, AP0274H∗, AP0364H∗, and AP0484H

∗

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

3 4

1 2 3

2 3

CN34

(RED)

CN33

(WHI)

CN82

(BLU)

4 1

3 2

CN334

(WHI)

DC20V

CN333

(WHI)

CN68

(BLU)

CN304

(GRY)

CN66

(WHI)

CN67

(BLK)

Indoor control P.C. board

TCJ

TC2

CN80

(GRN)

PNL

EXCT

CN73

(RED)

FILTER

LRGnoitpOFandrive

CN70

(WHI)

CN20

(BLU)

2 3

4 5

1 2 3 4 5

2 3

CN60

(WHI)

CN32

(WHI)

CN61

(YEL)

CN50

(WHI)

Adpter for wireless

remote controller

CN309

(YEL)

CN41

(BLU)

T10

1 21

5 6

CN81

(BLK)

1 2

4 51 2 3 4 51 2 31 2 3

1 2 3

CN40

(BLU)

4 5 6

1 2

RY302

RY303

–

Fuse

T6.3A

250V~

Fuse

T3.15A

DC15V

DC12V

DC7V

P301

BLK

RED

WHI

Closed end

terminal

RED

WHI

Wired remote

controller

Outdoor unit

B A

1 2

CN1

(WHI)

CN001

(WHI)

Indoor unit

Earth screw

WHI BLK BLKWHI

BLK

BLU

WHI

BLU

BLK

Power

supply

circuit

Motor drive

circuit

CN01

(WHI)

CN02

(BLU)

CN03

(RED)

Network

adaptor

(Option)

1 2

X Y

3 3

2 2

1 1

Network

adaptor

P.C. board

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

S(N) R(L)

Power supply

single phase

200-240V 50Hz

200V 60Hz

Symbol

TC,TC2,TCJ

RY302

Parts name

Fan motor

Indoor temp sensor

Temp sensor

Louver motor

Drain control relay

Drain pump motor

Float switch

Sold

separately

PMV

Flow selector

unit earth

screw

CN100

(BRW)

233

TC1

– 36 –

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

Models: MMK-AP0074MH

∗

, AP0094MH∗, and AP0124MH

∗

RED

F301 Fuse

T3. 15A 250V~

Color identification

BRW

RED

WHI

YEL

BLU

BLK

GRY

PNK

ORN

GRN & YEL

GRN

BROWN

RED

WHITE

YELLOW

BLUE

BLACK

GRAY

PINK

ORANGE

GREEN &

YELLOW

GREEN

:::

Fan

motor

Pulse motor

valve

Louver

motor

Heat exchanger

GRN & YEL

CN67

(BLK)

CN309

(YEL)

GRN & YEL

CN50

(WHI)

CN210

(WHI)

CN32

(WHI)

CN213 (WHI)

CN81 (BLK)

CN60

(WHI)

CN80

(GRN)

CN61

(YEL)

(MCC-1510)

Control P.C.board for indoor unit

Option

Fan Drive

PNL/EMG

CN33

(WHI)

CN44

(BRW)

CN40

(BLU)

CN41

(BLU)

Heat

exchanger

sensor

(TC1)

Heat

exchanger

sensor

(TC2)

Heat

exchanger

sensor

(TCJ)

Thermo

sensor

(TA)

Wierd remote

controller

(Sold Separately)

CN100

(BRW)

CN101

(BLU)

CN103

(GRN)

CN102

(YEL)

CN104

(WHI)

CN1(WHI)

BLK

DC 15V

DC 0V

DC 12V

DC 7V

BLK

HBS

BLK

CN22

CN82

(BLU)

WHI

9 8 765

2 1

9 8 74

2 34

5 67

1011

123

4 5 6

3 45

1 2 3 45

1 2 34

5 6

23456

123456

13456

5 4 32

654321

2 1 654321 321

4 3 2 1

5 4 3 21

2 1

321

WHI

RED

BRW

YEL

WHI

BRW

YEL

GRY

PNK

GRY

ORN

RED

BLU

Infrared rays receive

and indication parts

(MCC-861)

Flow selector Unit

(Sold sepalately)

Power Supply

Single phase

220-240V 50Hz

220V 60Hz

RED

BRW

BLU

ORN

YEL

WHI

BLK

Power

supply

circuit

Outdoor unit

BLU

BLK

WHI

WHI BLK

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

– 37 –

1-2-13. High Wall Type 3 series

Models: MMK-AP0073H, AP0093H, AP0123H, AP0153H, AP0183H, AP0243H

– 38 –

1-2-14. Floor Standing Cabinet Type

Models: MML-AP0074H

∗

, AP0094H∗, AP0124H∗, AP0154H∗, AP0184H∗, and AP0244H

∗

FMRCTRTATC1,TC2,TCJ

RY00 1

RY002

RY004

RY005~007

PMV

Fan motor

Running capacitor

Transformer

Indoor temp sensor

Temp sensor

Louver control relay

Drain control relay

Heater control relay

Fan motor control relay

Pulse motor valve

Symbol

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 at inside indicates the terminal number.

2. A dotted line and broken line indicate

the wiring at side.

3. indicate the control p.c. board.

5 3

3 1

RY007

P301

(BLK)

RY004

(GRY)

CN304

(YEL)

CN309

FUSE

T5.0A 250V~

RY006

RY005

RED BLK ORN BLU YEL

M LUL

CN104

(YEL)

CN102

(RED)

TCJ

CN101

(BLK)

CN100

(BRN)

CN080

(GRN)

TC2

PNL

EXCT

CN073

(RED)

245

FILTER

CN070

(WHI)

CN081

(BLK)

1 2

1 2 3

5 6 1

4 5

6 1 2

4 5 6

1 2 3 4

1 2 3 4 5 6

2 3 4

1 2 3 4 5 6

5 6

TC1

CN066

(WHI)

CN067

(BLK)

AC IN RED

WHI

CN040

(BLU)

Outdoor unit Remote Controller

Power supply

single phase

220-240V 50Hz

220V 60Hz

Indoor unit

earth screw

Closed-end

connector

Line Filter

RED

WHI

CN01(WHI)

CN03(RED)

CN02

(BLU)

CN041

(BLU)

CN050

(WHI)

CN061

(YEL)

T10

CN032

(WHI)

FAN

DRIVE

OPTION

CN060

(WHI)

BLU

BLK

Network Adapter

(Option)

Control P.C. board

for Indoor unit

MCC-1403

MCC-1401

CN1

CN074

(WHI)

CN075

(WHI)

Power supply

circuit

CN068

(BLU)

FAN

CN083

(WHI)

RY002

CN033

(GRN)

RY001

CN082

(BLU)

PMV

CN030

(RED)

1 2

4 5 6

4 5

234 56

1 234 56

PMV

R(L)

S(N)

CN01

(WHI)

CN02

(YEL)

Sub P.C. board

MCC-1520

Flow selector

unit earth

screw

– 39 –

1-2-15. Floor Standing Concealed Type

Models: MML-AP0074BH

∗

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

∗

GRN

1. Indicates the terminal bolock.

Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate

the wiring at side.

3. indicate the control p.c. board.

5 3 17

RY007

R301

(BLK)

RY004

(GRY)

CN304

(YEL)

CN309

(BLK)

CN067

FUSE

T5.0A 250V~

RY006

RY005

RED BLK ORN BLU YEL

LUL

WHI

CN104

(YEL)

CN102

(RED)

TCJ

CN101

(BLK)

CN100

(BRW)

CN080

(GRN)

TC2

PNL

EXCT

CN073

(RED)

221

FILTER

CN070

(WHI)

CN081

(BLK)

2 2

321 1

1 1

3 1 2

3 4 5

2 3 4 5 6

2 1 23

5 6

1 2

3 4 5 6

1 2 3 4 5

1 2 3

4 5

1 2

3 4

1 2 3 4 5 6

2 3 4 5 6

TC1

AC IN

CN044

(BRW)

CN066

(WHI)

CN040

(BLU)

Outdoor unit

Remote Controller

Power supply

single phase

220-240V 50Hz

220V 60Hz

Indoor unit

earth screw

Closed-end

connector

CN01(WHI)

CN03(RED)

CN02

(BLU)

CN03

(RED)

CN041

(BLU)

CN050

(WHI)

CN061

(YEL)

CN032

(WHI)

FAN

DRIVE

OPTION

CN060

(WHI)

EMG

RED

WHI

A B X Y

Network

adapter

(Option)

Control P.C. board

for undoor unit

MCC-1403

MCC-1401

For AP0071BH,AP0091BH,AP0121BH

CN1

CN074

(WHI)

CN075

(WHI)

Power supply

circuit

CN068

(BLU)

FAN

CN083

(WHI)

RY002

2 3

CN033

(GRN)

RY001

CN082

(BLU)

CN030

(RED)

PMV

1 2

3 4 5

234

3 4

PMV

RED

365

R(L) S(N)

GRN

9 5

RED BLK ORN BLU YEL

FAN

CN083

(WHI)

RED

WHI

654 654

TRTATC1,TC2,TCJ

RY00 1

RY00 2

RY00 4

RY005~007

PMV

Fan motor

Running capacitor

Transformer

Indoor temp sensor

Temp sensor

Louver control relay

Drain control relay

Heater control reley

Fan motor control relay

Pulse motor valve

Symbol

Parts name

Color

indication

RED : RED

WHI : WHITE

YEL : YELLOW

BLU : BLUE

BLK : BLACK

GRY : GRAY

PNK : PINK

ORN : ORANGE

BRW : BROWN

GRN : GREEN

CN01

(WHI)

CN02

(YEL)

Sub P.C. board

MCC-1520

Flow selector

unit earth

screw

– 40 –

1-2-16. Floor Standing Type

Models: MMF-AP0154H

∗

, AP0184H∗, AP0244H∗, AP0274H∗, AP0364H∗, AP0484H∗, and AP0564H

∗

TC1,TC2,TCJ

RY001

RY002

RY005~007

PMV

Fan motor

Running capacitor

Transformer

Lover motor

Indoor temp sensor

Temp sensor

Louver control relay

Drain control relay

Fan motor control relay

Pulse motor valve

Symbol

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 side.

3. indicate the control p.c. board.

5 3 17

9 5

3 1

RY007

P301

(BLK)

RY004

(GRY)

CN304

(YEL)

CN309

(BLK)

CN067

FUSE

T5.0A 250V~

RY006

RY005

RED BLK ORN BLU YEL

M LUL

BRW

CN104

(YEL)

CN102

(RED)

TCJ

CN101

(BLK)

CN100

(BRW)

CN080

(GRN)

TC2

PNL

EXCT

CN073

(RED)

FILTER

CN070

(WHI)

CN081

(BLK)

1 1

1 2 3 4 5

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

2 3 4 5 6

1 2

3 4 5 6

21435

TC1

CN066

(WHI)

AC IN

CN044

(BRW)

CN040

(BLU)

Outdoor unit Remote Controller

Power supply

single phase

220-240V 50Hz

220V 60Hz

Indoor unit

earth screw

Closed-end

connector

Line Filter

CN01(WHI)

CN03(RED)

CN02

(BLU)

CN041

(BLU)

CN050

(WHI)

CN061

(YEL)

CN032

(WHI)

FAN

DRIVE

OPTION

CN060

(WHI)

EMG

BLU

RED

WHI

BLK

U1 U2

Network Adapter

(Option)

Control P.C. board

for Indoor unit

MCC-1403

MCC-1401

CN1

CN074

(WHI)

CN075

(WHI)

Power supply

circuit

CN068

(BLU)

FAN

CN083

(WHI)

RY002

CN033

(GRN)

RY001

CN082

(BLU)

PMV

2 3

CN030

(RED)

3 4

1 2

4 5 6

1 234 56

234

PMV

R(L)

S(N)

654 654

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

Flow selector

unit earth

screw

– 41 –

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

MMD-VNK502HEXE

∗

, MMD-VNK802HEXE∗, MMD-VNK1002HEXE∗, MMD-VNK1002HEXE2

∗

Connector

(White)

Connector

(Black)

FM1 FM2

YellowYellow

Yellow

Yellow Yellow

Red

RedWhite White

Blue

OrangeOrange

Black

Connector

(Red *6)

Connector

(White *6)

43F12 43F11 43F22 43F21

Red

F02

T 15 A

250 V~

Air conditioner

indoor unit

Earth

Power supply for

indoor unit

220-240 V~, 50 Hz

220 V~, 60 Hz

represents the connector to switch between

Extra High and High.

Red

White

TB1

Black

P01

CN67

(Black)

F01

T 3.15 A

250 V~

CN701

(White)

CN702

(Red)

RY701

RY702

RY704

RY705

Red Red

Orange Blue

Red

Orange Blue Red

RY708

RY709

RY710

Indoor control circuit board

MCC1615

Power

supply

DC 20 V

DC 15 V

DC 12 V

DC 7 V

SW701

CN760

(White)

DAM

Blue Yellow White

Red Purple

TB3

External output

(220 V~, under 1 A each)

Operation output

Common

External damper output

Abnormal / Bypass

mode output

CN704

CN705 CN706 CN61

(Yellow)

CN81

(Black)

CN82 (Blue)

Common

Remote controller operation

Fan speed

Operation

*5) External input (Option)

No voltage a-contact input

Voltage DC (12 V, 24 V) input

PMV

CN100

(Brown)

CN101

(Black)

CN102

(Red)

CN103

(Green)

CN104

(Yellow)

CN105

(Brown)

CN106

(White)

TC1

TC2

TCJ

TFA

TSA

TRA

TOA

CN041

(Blue)

CN040

(Blue)

TB2

Blue

Black

Wiring between

indoor and outdoor unit

Wiring for the

remote controller

Wired remote controller

(Option)

CN634

(Red)

CN34

(Red)

CN601

(Blue)

CN602

(Red)

Black

White

Black

FS1

PinkPurple

Pink

TB4

TB5

MV1

DMV1

Gray

Black

Red

– 42 –

(1) The dotted line represents a wire procured locally, and the dashed line represents an option sold

separately.

(2) represents a terminal block, represents a connection terminal, represents a connector on

the printed circuit board and represents a short circuit connector. (3) represents a protective earth. (4) represents a printed circuit board. (5) Using a no voltage a-contact input of the external input (option), the following operations are available.

Between 1 and 2 : Selecting the remote controller operation (Invalid / Valid)

Between 1 and 3 : Adjusting the fan speed (Low / High)

Between 1 and 5 : Operation (ON / OFF)

Use a microcurrent contact (DC 12 V, 1 mA). In addition, ON / OFF operation is possible when using a

voltage of DC 12 V or 24 V. (6) Orange wire (High) is connected as factory default. To switch to “Extra High”, connect black wire's

connector instead of orange.

eman straPedoCeman straPedoCeman straPedoC

evlav citengam noisserpmoceD1VMDrosnes AFTAFTrotcennoC**NC

F01 Fuse (printed circuit board)

TCJ, TC1, TC2

evlav gnitaludom esluPVMProsnes lioc roodnI

hctiws piD107WS)ecruos rewop( kcolb lanimreT1BT)rotom( esu

F20F

)noitacinummoc( kcolb lanimreT2BTrotom gniylppus riA1MF

43F11, 43F12

Relay for air supplying motor

)tuptuo lanretxe( kcolb lanimreT3BTrotom gnitsuahxe riA2MF

43F21, 43F22

Relay for air exhausting motor

)tatsidimuh( kcolb lanimreT4BTrotom repmaDMAD

RY701, RY702

Relay for air supplying motor

)evlav citengam( kcolb lanimreT5BTrosnes ARTART

RY704, RY705

Relay for air exhausting motor

hctiws taolF1SFrosnes AOTAOT

evlav citengaM1VMrosnes ASTAST

– 43 –

MMD-VN502HEXE∗, MMD-VN802HEXE∗, MMD-VN1002HEXE∗, MMD-VN1002HEXE2

Connector

(White)

Connector

(Black)

FM1 FM2

YellowYellow

Yellow Yellow

RedRed

hite White

Blue

OrangeOrange

Black

Connector

(Red *6)

Connector

(White *6)

43F12 43F11 43F22 43F21

Red

F02

T 15 A

250 V~

Air conditioner

indoor unit

Earth

Power supply for

indoor unit

220-240 V~, 50 Hz

220 V~, 60 Hz

represents the connector to switch between

Extra High and High.

Red

White

TB1

Black

P01

CN67

(Black)

F01

T 3.15 A

250 V~

CN701

(White)

CN702

(Red)

RY701

RY702

RY704

RY705

Red Red

Orange Blue

Red

Orange Blue Red

RY708

RY709

RY710

Indoor control circuit board

MCC1615

Power

supply

DC 20 V

DC 15 V

DC 12 V

DC 7 V

SW701

CN760

(White)

DAM

Blue Yellow White

Red Purple

TB3

External output

(220-240 V~, under 1 A each)

Operation output

Common

External damper output

Abnormal / Bypass

mode output

CN704

CN705 CN706 CN61

(Yellow)

CN81

(Black)

CN82 (Blue)

Common

Remote controller operation

Fan speed

Operation

*5) External input (Option)

No voltage a-contact input

Voltage DC (12 V, 24 V) input

PMV

CN100

(Brown)

CN101

(Black)

CN102

(Red)

CN103

(Green)

CN104

(Yellow)

CN105

(Brown)

CN106

(White)

TC1

TC2

TCJ

TFA

TSA

TRA

TOA

CN041

(Blue)

CN040

(Blue)

TB2

Blue

Black

Wiring between

indoor and outdoor unit

Wiring for the

remote controller

Wired remote controller

(Option)

CN634

(Red)

CN34

(Red)

CN601

(Blue)

CN602

(Red)

Black

White

Black

FS1

– 44 –

eman straPedoCeman straPedoCeman straPedoC

hctiws piD107WSrosnes ASTASTrotcennoC**NC

F01 Fuse (printed circuit board) TFA TFA sensor

43F11, 43F12

Relay for air supplying motor

F02 Fuse (motor)

TCJ, TC1, TC2

Indoor coil sensor

43F21, 43F22

Relay for air exhausting motor

)ecruos rewop( kcolb lanimreT1BTrotom gniylppus riA1MF

RY701, RY702

Relay for air supplying motor

)noitacinummoc( kcolb lanimreT2BTrotom gnitsuahxe riA2MF

RY704, RY705

Relay for air exhausting motor

)tuptuo lanretxe( kcolb lanimreT3BTrotom repmaDMAD

hctiws taolF1SFrosnes ARTART

evlav gnitaludom esluP

VMProsnes AOTAOT

(1) The dotted line represents a wire procured locally, and the dashed line represents an option sold

separately. (2) represents a terminal block, represents a connection terminal, represents a connector on

the printed circuit board and represents a short circuit connector. (3) represents a protective earth. (4)

represents a printed circuit board.

(5) Using a no voltage a-contact input of the external input (option), the following operations are available.

Between 1 and 2 : Selecting the remote controller operation (Invalid / Valid)

Between 1 and 3 : Adjusting the fan speed (Low / High)

Between 1 and 5 : Operation (ON / OFF)

Use a microcurrent contact (DC 12 V, 1 mA). In addition, ON / OFF operation is possible when using a

voltage of DC 12 V or 24 V. (6) Orange wire (High) is connected as factory default. To switch to “Extra High”, connect black wire’s

connector instead of orange.

– 45 –

1-2-18. Fresh Air Intake Indoor Unit

Model: MMD-AP0481HFE

U2U1

2 3

2 3 4 5

654321

213121212131 212 312121212 3131

654321654321

654321

654321 654321

54321 321

321

32121 3121

21 21

Option

(Option)

7 REDWHI

Fan driveT10

ORNBLU

TC2TCJ TA TC1

CN103 (GRN)

CN100 (BRW)

CN101

(BLK)

CN102

(RED)

CN104

(YEL)

CN030

(RED)

Fan motor inside wiring diagram

Motor over heating protection switch

RED

WHI GRY

BLK

BLU

ORN

CN033

(GRN)

Fan

CN083

(WHI)

CN068

(BLU)

13579

Surge absorber

ULLMHRY007

P301

RY006

RY005

RY002 RY001

CN304 (GRY)

CN309 (YEL)

CN067 (BLK)

CN066 (WHI)

Fuse

T5.0A, 250V ~

RED ACIN

WHI

RY004

BLK

11 22

5 4 3 2

2 1 3 4

1 1 6 6

PMV

43F1

CN080 (GRN)

CN073 (RED)

CN070

(WHI)

CN081

(BLK)

CN082

(BLU)

CN060

(WHI)

CN032

(WHI)

CN061

(YEL)

CN075 (WHI)

CN074

(WHI)

CN050

(WHI)

CN041

(BLU)

CN040

(BLU)

BLU BLK BLKBLU

EMG

Line filter

Remote

controller

board

Outdoor unit

YEL

RED

Indoor unit

earth screw

Power supply

220 – 240V ~ 50Hz

220V ~ 60Hz

Closed-end

connector

4P (WHI)

Connector

Remote controller

RED

RED WHI

WHI

RED

GRY

WHI

RED

GRY

WHI

RED

GRY

WHI

RED

GRY

REDT10A, 250V ~

CN044 (BRW)

Power

supply circuit

Sub P.C. board

MCC-1520

CN02 (YEL)

CN01 (WHI)

TR1

Control P.C. Board

for Indoor Unit

MCC-1403

BLK

Parts name

Fan Motor

Running Capacitor

Transformer

Intake air temp. sensor

Blow temp. sensor

Temp. sensor

Fan motor control relay

Drain control relay

Pulse Motor Valve

Fuse for fan motor

Fan motor control relay

Drin Pump motor

Float Swotch

Symbol

TR1

TC1, TC2, TCJ

RY005 ~ 007

RY002

PMV

43F1

Terminal block No.

F1 (Low static pressure tap)

F2 (Intermediate static pressure tap)

F3 (High static pressure tap)

Fan motor wiring

Blue (50/60Hz)

Orange (50/60Hz)

Bkack (50/60Hz)

—

Note

At shipment from factory

—

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

1. indicates the terminal block. Latter 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.

4. When installing the drain pump connect the froat switch connector to CN030 connector.

A position is connected to terminal block when change to static pressure.

Exchange the lead wire of arrow ( ) pisition after the terminal number as figure and lead wire’s color of fan motor.

ORNBLU BLK

S(N)R(L)

43F1

4321 4321

1 2 3

F1 F2 F3 F4

Fan 1

G & Y

49F

Sold separately

Color Identification

PNL

EXCT

Filter

– 46 –

Models: MMD-AP0721HFE and MMD-AP0961HFE

U2U1

2 3

2 3 4 5

654321

213121212131 212 312121212 3131

654321654321

654321

654321 654321

54321 31

32121 3121

21 21

Option

(Option)

7 RED

RED

WHI

Fan driveT10

ORNBLU

TC2TCJ TA TC1

CN103

(GRN)

PNL

EXCT

Filter

CN100 (BRW)

CN101

(BLK)

CN102 (RED)

CN104

(YEL)

CN030

(RED)

Fan motor inside wiring diagram

Motor over heating protection switch

RED

WHI

GRY

BLK

BLU

ORN

LM CN033 (GRN)

Fan CN083 (WHI)

CN068

(BLU)

13579

Surge absorber

ULLMHRY007

P301

RY006

RY005

RY002 RY001

CN304 (GRY)

CN309 (YEL)

CN067 (BLK)

CN066 (WHI)

Fuse

T5.0A, 250V ~

RED ACIN

WHI

RY004

BLK

11 22

5 4 3 2

2 1 3 4

1 1 6 6

PMV

43F2

7 RED

WHI

43F1

CN080

(GRN)

CN073

(RED)

CN070

(WHI)

CN081

(BLK)

CN082

(BLU)

CN060

(WHI)

CN032

(WHI)

CN061

(YEL)

CN075

(WHI)

CN074

(WHI)

CN050

(WHI)

CN041

(BLU)

CN040

(BLU)

BLU BLK BLKBLU

EMG

Line filter

Remote

controller

board

Outdoor unit

YEL

Indoor unit

earth screw

Power supply

220 – 240V ~ 50Hz

220V ~ 60Hz

Closed-end

connector

4P (WHI)

RC2

4P (WHI)

Connector

Remote controller

RED

RED WHI

WHI

RED

WHI

RED

GRY

WHI

RED

GRY

WHI

RED

GRY

WHI

RED

GRY

RED

T10A, 250V ~

CN044 (BRW)

Power

supply circuit

Sub P.C. board

MCC-1520

CN02 (YEL)

CN01 (WHI)

TR1

Control P.C. Board

for Indoor Unit

MCC-1403

BLK

Parts name

Fan Motor

Running Capacitor

Transformer

Intake air temp. sensor

Blow temp. sensor

Temp. sensor

Fan motor control relay

Drain control relay

Pulse Motor Valve

Fuse for fan motor

Fan motor control relay

Drin Pump motor

Float Swotch

Symbol

FM1, FM2

RC1, RC2

TR1

TC1, TC2, TCJ

RY005 ~ 007

RY002

PMV

F1, F2

43F1, 43F2

Terminal block No.

F1 (Low static pressure tap)

F2 (Intermediate static pressure tap)

F3 (High static pressure tap)

Fan motor wiring

Blue (50/60Hz)

Orange (50/60Hz)

Bkack (50/60Hz)

—

Note

At shipment from factory

—

GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN G & Y : GREEN & YELLOW

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK

1. indicates the terminal block. Latter 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.

4. When installing the drain pump connect the froat switch connector to CN030 connector.

A position is connected to terminal block when change to static pressure.

Exchange the lead wire of arrow ( ) pisition after the terminal number as figure and lead wire’s color of fan motor.

ORNBLU BLK

S(N)R(L)

RED T10A, 250V ~

43F1

43F2

4321 4321

FM2

1 2 3

F1 F2 F3 F4

Fan 2

G & Y

ORNBLU

4P (WHI)

RC1

4P (WHI)

WHI

RED

GRY

WHI

RED

GRY

WHI

RED

GRY

WHI

RED

GRY

ORN

BLK

ORNBLU BLK

4321 4321

FM1

1 2 3

F1 F2 F3 F4

Fan 1

G & Y

49F

Sold separately

Color Identification

43F1

Surge absorber

– 47 –

2 Parts Rating

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

***4*T8*P*

)

noitacificepSledoMemaN

MMY-MAP0804

MMY-MAP1004

MMY-MAP1204

MMY-MAP1404

MMY-MAP1604

O2×Wk3.2 :tuptuOM92-BF3A124ADrosserpmoC1

O2×Wk1.3 :tuptuOM92-BF3A124ADrosserpmoC1

O2×Wk2.4 :tuptuOM92-B

F3A124ADrosserpmoC1

O3×Wk0.3 :tuptuOM92-BF3A124ADrosserpmoC1

O3×Wk6.3 :tuptuOM92-BF3A124ADrosserpmoC1 OO

OOO zH05 V042-022CAFTSlioc evlav yaw-42

OOOOOV21CD2TCTH-11DM-MAHlioc evlav rotom esluP3

2-way valve coil VPV AC220-240V 50Hz

SV3B

OOO

AC220-240V 50Hz SV3B,SV3E,SV3F

2-way valve coil FQ-G593 AC220-240V 50Hz

SV2,SV3A,SV3C,SV3D,SV3E,SV41,SV42,SV5

OOO

AC220-240V 50Hz SV2,SV3A,SV3C,SV3D,SV6,SV41,SV42,SV43

OOOOOaP

M9.2:NO aPM37.3:FFOW23BU4-BCAWS erusserp-hgiH6

OOOOOaPM37.3~0/V3.4~5.0AAG-M35FLTCTH-1

)erusserp hgih roF( rosnes erusserP

OOOOOaPM89.0~0/V5.3~5.0AAG-C25FLTCTH-1

)erusserp wol roF( rosnes erusserP

OOOOOWk1/V082CD1-0001A043-FTSrotom naF9

OOOOOW92/V042CA).pmoc roF( retaeh esaC01 OOOOOW55/V042CA).mucc

a roF( retaeh esaC11

OOOOOC°37gulp elbisuF21

– 48 –

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

***

4HT7*P)

noitacificepSledoMemaN

MMY-MAP0804

MMY-MAP1004

MMY-MAP1204

MMY-MAP1404

MMY-MAP1604

O2×Wk3.2 :tuptuOM92-BF3A124ADrosserpmoC1

O2×Wk1.3 :tuptuOM92-BF3A124ADrosserpmoC1

O2×Wk2.4 :tuptuOM92-BF3A124ADrosserpmoC1

O3×Wk0.3 :tuptuOM92-BF3A124ADrosserpmoC1

O3×Wk6.3 :tuptuOM92-BF3A124ADrosserpmoC1 OOOOO zH06 V032-802CAFTSlioc evlav yaw-42 OOOOOV21CD2TCTH-11DM-MAHlioc evlav rotom esluP3

2-way valve coil

VPV AC208-230V 60Hz

SV3B

OOO

AC208-230V 60Hz SV3B,SV3E,SV3F

2-way valve coil FQ-D640 AC208-230V 60Hz

SV2,SV3A,SV3C,SV3D,SV3E,SV41,SV42,SV5

OOO

AC208-230V 60Hz SV2,SV3A,SV3C,SV3D,SV6,SV41,SV42,SV43

OOOOOaPM9.2:NO aPM37.3:FFOW23BU4-BCAWS erusserp-hgiH6 OOOOOaPM37.3~0/V3.4~5.0AAG-M35FLTCTH-1

)erusserp hgih roF( rosnes erusserP

OOOOOaPM89.0~0/V5.3~5.0AAG-C25FLTCTH-1

)erusserp wol roF( rosnes erusserP

OOOOOWk1/V082CD1-0001A043-FTSrotom naF9

OOOOOW92/V042CA).pmoc roF( retaeh esaC01 OOOOOW55/V042CA).mucca roF( retaeh esaC11

OOOOOC°37gulp elbisuF21

– 49 –

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

***4*T8*P*

)

noitacificepSledoMemaN

MMY-MAP0804

MMY-MAP1004

MMY-MAP1204

MMY-MAP1404

MMY-MAP1604

OOOOOP4,A57/V006CA4006-OXJkcolb lanimret ylppus rewoP1

OOP6,A02/V052CAB6-OXJrotcaer rof kcolb lanimret

yaleR2

3 Communication terminal block JXO-B2H AC30V (or no more than DC42V) / 1A, 6P O O O O O

OOOOOA61/Hm8.597-HC).pmoc roF( rotcaeR4 OOOOOA41/Hm8.555-HC)naf roF( rotcaeR5 OOOOO—8061-CCM)re

tlif esioN( draob .C.P6

OOOOOA53/V004CA/Hm17.2—retlif eniL7 OOOOO—6061-CCM)draob F/I( draob .C.P8

OOOOO—

6951-CCM).pmoC rof UDPI( draob .C.P9

10 Fuse (MCC-1596) GAC1 31.5A 31.5A/AC500V (P.C. Board) O O O O O

Comp. motor drive IPM (MCC-1596) MCC-1596

PS22A76

25A/DC1200V (P.C. Board)

OOOOO

OOOOO—0161-CCM)naf rof UDPI( draoB .C.P21

OOOOOV052CA/A51A51

V052TDG)0161-CCM( esuF31

OOOOOV006CD/A02C06HC02BBSF)0161-CCM( MPI evird rotom naF41

OOOOOV042-022CAS1-C

F)zH05( hctiws tengaM51

PTC thermistor MZ32-

101RMARD01E

13A/AC500V

OOOOO

OOOOO)egnar .pmet tneibmA( C°531–C°03-—)DT( rosnes .pmet epiP71

OOOOO)egna

r .pmet tneibmA( C°08–C°02-—)ST( rosnes .pmet epiP81 19 Heat exchanger temp. sensor (TE) — -20°C–80°C (Ambient temp. range) O O O O O 20 Outside temp. sensor (TO) — -20°C–80°C (Ambient temp. range) O O O O O

OOOOO)egnar .pmet tneibmA( C°531–C°03-—)KT( ros

nes .pmet liO12

22 Liquid temp. sensor (TL) — -20°C–80°C (Ambient temp. range) O O O O O

– 50 –

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

***

4HT7*P)

noitacificepSledoMemaN

MMY-MAP0804

MMY-MAP1004

MMY-MAP1204

MMY-MAP1404

MMY-MAP1604

OOOOOP4,A57/V006CA4006-OXJkcolb lanimret ylppus rewoP1

OOP6,A02/V052CAB6-OXJrotcaer rof kcolb lanimret

yaleR2

3 Communication terminal block JXO-B2H AC30V (or no more than DC42V) / 1A, 6P O O O O O

OOOOOA61/Hm8.597-HC).pmoc roF( rotcaeR4 OOOOOA41/Hm8.555-HC)naf roF( rotcaeR5 OOOOO—8061-CCM)re

tlif esioN( draob .C.P6

OOOOOA53/V004CA/Hm17.2—retlif eniL7 OOOOO—6061-CCM)draob F/I( draob .C.P8

OOOOO—

6951-CCM).pmoC rof UDPI( draob .C.P9

10 Fuse (MCC-1596) GAC1 31.5A 31.5A/AC500V (P.C. Board) O O O O O

Comp. motor drive IPM (MCC-1596) MCC-1596

PS22A76

25A/DC1200V (P.C. Board)

OOOOO

OOOOO—0161-CCM)naf rof UDPI( draoB .C.P21

OOOOOV052CA/A51A51

V052TDG)0161-CCM( esuF31

OOOOOV006CD/A02C06HC02BBSF)0161-CCM( MPI evird rotom naF41

OOOOOV022-002CAS1-C

F)zH06( hctiws tengaM51

PTC thermistor MZ32-

101RMARD01E

13A/AC500V

OOOOO

OOOOO)egnar .pmet tneibmA( C°531–C°03-—)DT( rosnes .pmet epiP71

OOOOO)egnar .pmet tneibmA( C°08–C°02-—)ST( rosnes .pmet epiP81 19 Heat exchanger temp. sensor (TE) — -20°C–80°C (Ambient temp. range) O O O O O 20 Outside temp. sensor (TO) — -20°C–80°C (Ambient temp. range) O O O O O

OOOOO)egnar .pmet tneibmA( C°531–C°03-—)KT( ros

nes .pmet liO12

22 Liquid temp. sensor (TL) — -20°C–80°C (Ambient temp. range) O O O O O

– 51 –

2-5. Parts Layout in Outdoor Unit

8, 10, 12HP Model: MMY-MAP0804

∗, MAP1004∗, MAP1204∗

– 52 –

14, 16HP Model: MMY-MAP1404∗, MAP1604∗

– 53 –

2-6. Parts Layout in Inverter Assembly

Outdoor Unit (8, 10, 12HP) Model: MMY-MAP0804

∗, MAP1004∗, MAP1204∗

Inverter P.C. board for fan

[Fan IPDU]

(MCC-1610)

Inverter P.C. Board for

Compressor 1

[A3 IPDU]

(

MCC-1596

)

Inverter P.C. Board for Compressor 2 [A3 IPDU] (MCC-1596)

Interface P.C. board [Outdoor control P.C. board] (MCC-1606)

Power supply terminal block

Noise Filter P.C. board (MCC-1608)

Communication terminal block

Relay connector for central control

Magnet switch

– 54 –

Outdoor Unit (14, 16HP) Model: MMY-MAP1404∗, MAP1604∗

Inverter P.C. board for fan

[Fan IPDU]

(MCC-1610)

Interface P.C. board [Outdoor control P.C. board]

(MCC-1606)

Power supply terminal block

Noise Filter P.C. board (MCC-1608)

Communication terminal block

Relay connector for central control

Magnet switch

Inverter P.C. board for Compressor 1

(

MCC-1596

)

Inverter P.C. board for Compressor 2

(

MCC-1596

)

Inverter P.C. board for Compressor 3

(

MCC-1596

)

– 55 –

PMV4 output

UART communication

CN600

SW06,07,09,10

SW11,12,13,14

SW16,17

SW30

CN01

CN03

SV61,62

SV43

SV42, SV41

CN313

CN312

CN314

CN311

CN321

CN322

CN323

CN331

CN332

CN333

CN334

CN317

CN800

CN500

CN601

SW01,02,03

SW04,05,15

SV3A SV3B SV3C

SV3E

SV3F

CN320

SV12

CN335

B. Heater

SV3D

CN315

Jumper select

For inter-unit cable between indoor and outdoor units

For inter-unit cable between outdoor units

PMV2 output PMV1 output

Option input/output

Sensor input

7-segment LED

PD sensor

PS sensor

Dina-doctor

connecting terminal

4-way valve output

Accumulator heater

Comp. case heater 3

Comp. case heater 2

Comp. case heater 1

SV51,52 SV2

CN511 CN508 CN510 CN513

TD3 TD2 TD1

CN504 CN503 CN502

TK3 TK2 TK1

CN533 CN532 CN531

TO TK5 TK4

CN507 CN535 CN534

TE2 TE1

CN521 CN520

TS1 CN505

CN523

CN514 CN509 CN512

CN305, 306, 307

High pressure SW

2-7. Outdoor (Inverter) Print Circuit Board

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

– 56 –

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

– 57 –

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

CN505

CN504

CN500

CN702

CN602

CN705

CN704

CN703

CN705

CN704

CN703

CN504

CN505

Power supply input

CN500

CN510

CN511

CN502

CN511

CN510

Fan motor output U-phase

Fan motor output V-phase

Fan motor output W-phase

UART communication between interfaces

UART communication between A3-IPDU

Reactor connecting terminal

– 58 –

Outdoor Unit (8, 10, 12HP) Model: MMY-MAP0804

, MMY-MAP1004 , MMY-MAP1204

Liquid tank

(TL)

PMV1

4-way valve

Check valve

High-pressure sensor

(TD2)

Accumulator

(TS1)

(SV2)

Low-pressure sensor

(SV5)

(TE1)

(SV3D)

PMV2

(

TK2

)

Right side

(SV3B)

(

TK1

)

(SV3A)

(TD1)

(TK4)

(SV3E)

(

TK5

)

Oil header

Oil separator

Fan

(

SV3C)

Reducer

(TO)

Heat exchanger

Left side

Fan motor

Heat exchanger

Fusible plug

Check valve

)24VS()14VS(

High-pressure switch

High-pressure

switch

Compressor

(Inverter)

Compressor

(Inverter)

Liquid side

packed valve

Gas side

service valve

Balance pipe packed valve

Symbol

Solenoid

valve

Capillary

tube

Check

valve

Check joint Strainer

Temperature

sensor

Distributor

3 Refrigerant Piping Systematic Drawing

– 59 –

Outdoor Unit (14, 16HP) Model: MMY-MAP1404

, MMY-MAP1604

(TL)

PMV1

(TD2)

(TS1)

(SV2)

Low-pressure sensor

(TE1)

(

SV3D

)

PMV2

(TK2)

(SV3B)

(TK1)

(SV3A)

(TD1)

(TK4)

(SV3E)

(TK5)

(SV41)

(SV42)

PMV4

Fan

(TE2)

Sub heat exchanger at left side

(TD3)

(SV43)

(TK3)

(SV6)

(TO)

(SV3F)

(SV3C)

Main heat exchanger

Sub heat exchanger at right side

Fan motor

Symbol

Solenoid

valve

Capillary

tube

Check

valve

Check joint Strainer

Temperature

sensor

Distributor

Right side

Left side

Check valve

4-way valve

High-pressure sensor

Fusible plug

Liquid tank

Oil separator

High-pressure switch

High-pressure

switch

Highpressure switch

Accumulator

Oil header

Compressor

(Inverter)

Compressor

(Inverter)

Compressor

(Inverter)

Check valve

Liquid side

packed valve

Gas side

service valve

Balance pipe packed valve

– 60 –

Explanation of Functional Parts

eniltuo lanoitcnuFeman trap lanoitcnuF

Solenoid valve

SV3A

(Connector CN321: White)

1) Supplies oil reserved in the oil header during ON time.

SV3B

(Connector CN321: White)

1) Returns oil supplied in the balance pipe to the compressor.

SV3C

(Connector CN321: White)

1) Pressurizes oil reserved in the oil header during ON time.

SV3D

(Connector CN322: White)

1) Reserves oil in the oil separator during OFF time.

2) Returns oil reserved in the oil separator to the compressor during ON time.

SV3E

(Connector CN322: White)

1) Turns on during operation and balances oil between compressors.

SV3F

(Connector CN323: White)

1) Controls oil level balances between compressors.

SV2

(Hot gas bypass) (Connector CN311: White)

1) Low pressure release function

2) High pressure release function

3) Gas balance function during stop time

SV41 SV42 SV43

(Start compensation valve of compressor) (SV41 Connector CN312: Blue, SV42 Connector CN312: Blue, SV43 Connector CN313: Red)

1) For gas balance start

2) High pressure release function

3) Low pressure release function

SV5

(Connector CN314: White)

1) Preventive function for high-pressure rising in heating operation

SV6

(Connector CN315: White)

1) Liquid bypass function for discharge temperature release (cooling bypass function)

4-way valve

(Connector CN317:Blue)

1) Cooling/heating exchange

2) Reverse defrost

Pulse motor valve

PMV1, 2

(Connector CN300, 301: White)

1) Super heat control function in heating operation

2) Liquid line shut-down function while follower unit stops

3) Under cool adjustment function in cooling operation

4) Exchange function between main and sub exchangers in cooling operation

PMV4

(Connector CN303: Red)

1) Exchange function between main and sub exchangers in cooling operation

2) Preventive function for high-pressure rising in heating operation

Oil separator

1) Prevention for rapid decreasing of oil (Decreases oil flowing to the cycle)

2) Reserve function of surplus oil

Temp. Sensor

TD1 TD2 TD3

(TD1 Connector CN502: White, TD2 Connector CN503: Pink, TD3 Connector CN504: Blue)

1) Protection of compressor discharge temp.

2) Used for discharge temperature release

TS1

(Connector CN505: White)

1) Controls PMV super heat in heating operation

TE1

(Connector CN520: Green)

1) Controls defrost in heating operation

2) Controls outdoor fan in heating operation

TE2

(Connector CN521: Red)

1) Controls exchange function between main and sub exchangers

TK1, TK2 TK3, TK4 TK5

(TK1 Connector CN531: Black, TK2 Connector CN532: Green, TK3 Connector CN533: Red, TK4 Connector CN534: Yellow, TK5 Connector CN535: Red)

1) Judges oil level of the compressor

(Connector CN523: White)

1) Detects under cool in cooling operation

(Connector CN507: Yellow)

1) Detects outside temperature

Pressure sensor

High pressure sensor

(Connector CN501: Red)

1) Detects high pressure and controls compressor capacity

2) Detects high pressure in cooling operation, and controls the fan in low ambient cooling operation

3) Detects under cool in indoor unit in heating operation

Low pressure sensor

(Connector CN500: White)

1) Detects low pressure in cooling operation and controls compressor capacity

2) Detects low pressure in heating operation, and controls the super heat

Heater

Compressor case heater

(Compressor 1 Connector CN331: White, Compressor 2 Connector CN332: Blue, Compressor 3 Connector CN333: Black)

1) Prevents liquid accumulation to compressor

Accumulator case heater

(Connector CN334: Red)

1) Prevents liquid accumulation to accumulator

tinu roodtuo hcae ni gnicnalab liO )1epip ecnalaB

– 61 –

Indoor Unit

CAUTION

MMU-AP007YH, AP012YH type air conditioners have no TC2 sensor.

Explanation of functional parts in indoor unit

eniltuo lanoitcnuFeman trap lanoitcnuF

Pulse Motor Valve

PMV

(Connector CN082 (6P): Blue)

1) Controls super heat in cooling operation

2) Controls under cool in heating operation

3) Recovers refrigerant oil in cooling operation

4) Recovers refrigerant oil in heating operation

Temp. Sensor

1.TA

(Connector CN104 (2P): Yellow)

1) Detects indoor suction temperature

2.TC1

(Connector CN100 (3P): Brown)

1) Controls PMV super heat in cooling operation

3.TC2

(Connector CN101 (2P): Black)

1) Controls PMV under cool in heating operation

4.TCJ

(Connector CN102 (2P): Red)

1) Controls PMV super heat in cooling operation

2) [MMU-AP007YH to AP012YH only] Controls PMV under cool in heating operation

Sensor

(TC2)

Fan

Fan motor

Sensor

(TCJ)

Sensor

(TC1)

Strainer

Liquid side

Gas side

Capillary tube

Sensor

(TA)

Pulse Motor

Valve

(PMV)

Heat exchanger

at indoor side

– 62 –

4 Combined Refrigerant Piping System

Schematic Diagrams

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

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

)*4021PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH

High-pressure gas or condensate liquid refrigerant Evaporative gas refrigerant (low-pressure gas)

Normal refrigerant line

PMV1

4-Way valve

TD2

TS1

SV2

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

HPS

TD1

TK4

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

PMV1

TD2

TS1

SV2

SV5

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

TD1

TK4

SV3

TK5

SV41

SV42

SV3C

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

Balance pipe

Liquid pipe

Gas pipe

PMV

Indoor unit

Pressure sensor (high pressure)

Liquid tank

Pressure sensor (low pressure)

Pressure sensor (high pressure)

Pressure sensor (low pressure)

Accumulator

Compressor

O.S.

Note: In DEFROST mode, PMV4 also opens.

Note: The "header unit" is the outdoor unit to which the indoor-outdoor communication

line is connected. All other outdoor units are called "follower units".

(The diagram shows a 28 HP system (16 HP + 12 HP) as an example.)

– 63 –

PMV1

TD2

TS1

SV2

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

HPS

TD1

TK4

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

PMV1

TD2

TS1

SV2

SV5

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

TD1

TK4

SV3E

TK5

SV41

SV42

SV3C

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

PMV

)*4021PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH

4-Way valve

Pressure sensor (high pressure)

O.S.

Pressure sensor (low pressure)

Accumulator

Compressor

Liquid tank

Balance pipe

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

4-Way valve

Pressure sensor (low pressure)

Pressure sensor (high pressure)

O.S.

Liquid tank

Accumulator

Compressor

Indoor unit

High-pressure gas or condensate liquid refrigerant Evaporative gas refrigerant (low-pressure gas)

Normal refrigerant line

Note: The "header unit" is the outdoor unit to which the indoor-outdoor communication

line is connected. All other outdoor units are called "follower units".

Note: With a 14 or 16 HP outdoor unit, the main heat exchanger and sub-heat

exchanger may be switched over depending on the outside temperature and air conditioning loads.

(The diagram shows a 28 HP system (16 HP + 12 HP) as an example.)

4-2. Normal Operation (COOL Mode) - Low Outside Air

Temperature (Roughly Below 20°C)

– 64 –

4-3. Normal Operation (HEAT Mode)

PMV1

TD2

TS1

SV2

TE1

SV3D

PMV

TK2

SV3B

TK1

SV3A

HPS

TD1

TK4

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

PMV1

TD2

TS1

SV2

SV5

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

TD1

TK4

SV3E

TK5

24VS14VS

SV3C

TC2

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

TCJ

TC1

PMV

PM PMV

PMV

)*4021PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH

4-Way valve

Pressure sensor (high pressure)

O.S.

Pressure sensor (low pressure)

Accumulator

Compressor

Liquid tank

Balance pipe

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Indoor unit

O.S.

Liquid tank

Accumulator

Compressor

Pressure sensor (low pressure)

Pressure sensor (high pressure)

4-Way valve

High-pressure gas or condensate liquid refrigerant Evaporative gas refrigerant (low-pressure gas)

Normal refrigerant line

Note: The "header unit" is the outdoor unit to which the indoor-outdoor communication

line is connected. All other outdoor units are called "follower units".

(The diagram shows a 28 HP system (16 HP + 12 HP) as an example.)

– 65 –

4-4. Emergency Operation (Cooling Operation under

Header Outdoor Unit Backup Scenario)

PMV1

TD2

TS1

SV2

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

HPS

TD1

TK4

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

TC2

TCJ

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

PMV

PMVPMV

PMV1

TD2

TS1

SV2

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS

TD1

TK4

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

Failure

)*4061PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH

Refrigerant recovery line

Leakage from PMV: Liquid-side service valve = Full closure

Set Up as Temporary Header Unit during Emergency Operation

Gas-side service valve = Full closure

Balance pipe packed valve = Full opening

4-Way valve

Pressure sensor (high pressure)

4-Way valve

Pressure sensor (high pressure)

O.S.

Pressure sensor (low pressure)

Accumulator

Compressor

Compressor2Compressor

Compressor

Compressor2Compressor

Liquid tank Liquid tank

Balance pipe

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Indoor unit

High-pressure gas or condensate liquid refrigerant Evaporative gas refrigerant (low-pressure gas) Normal refrigerant line

Note: The "header unit" is the outdoor unit to which the indoor-outdoor communication

line is connected. All other outdoor units are called "follower units".

(The diagram shows a 32 HP system (16 HP + 16 HP) as an example.)

– 66 –

PMV1

TD2

TS1

SV2

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

HPS

TD1

TK4

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

PMV

PMVPMV

PMV

PMV1

TD2

TS1

SV2

TE1

SV3D

PMV

TK2

SV3B

TK1

SV3A

HPS HPS

HPS

TD1

TK4

SV3E

TK5

SV41

SV42

PMV

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

Failure

)*4061PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH

Leakage from PMV: Liquid-side service valve = Full closure

Set Up as Temporary Header Unit during Emergency Operation

4-Way valve

Pressure sensor (high pressure)

O.S.

Pressure sensor (low pressure)

Accumulator

Liquid tank

Compressor

Compressor2Compressor

Gas-side service valve = Full closure

Balance pipe packed valve = Full opening

Balance pipe

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Indoor unit

4-Way valve

Pressure sensor (high pressure)

O.S.

Pressure sensor (low pressure)

Accumulator

Liquid tank

Compressor

Compressor2Compressor

Refrigerant recovery line

High-pressure gas or condensate liquid refrigerant Evaporative gas refrigerant (low-pressure gas)

Normal refrigerant line

Note: The "header unit" is the outdoor unit to which the indoor-outdoor communication

line is connected. All other outdoor units are called "follower units".

(The diagram shows a 32 HP system (16 HP + 16 HP) as an example.)

4-5. Emergency Operation (Heating Operation under

Header Outdoor Unit Backup Scenario)

– 67 –

PMV1

TD2

TS1

SV2

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

HPS

TD1

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3

PMV1

TD2

TS1

SV2

SV5

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

TD1

TK4

SV3E

TK5

SV41

SV42

SV3C

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

TC2

TCJ

TC1

PMV

)*4021PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH

Failure

4-Way valve

Pressure sensor (high pressure)

O.S.

Pressure sensor (low pressure)

Accumulator

Liquid tank

Compressor

Compressor2Compressor

Balance pipe

Liquid pipe

Gas pipe

Liquid pipe

Gas pipe

Indoor unit

4-Way valve

Liquid line bypass

Pressure sensor (high pressure)

Pressure sensor (low pressure)

O.S.

Accumulator

Compressor

Liquid tank

Balance pipe packed valve = Full opening

Gas-side service valve = Full opening

⇒

Full closure 10 minutes after system startup

Liquid-side service valve = Full closure

Refrigerant recovery line

High-pressure gas or condensate liquid refrigerant Evaporative gas refrigerant (low-pressure gas) Normal refrigerant line

Note: The "header unit" is the outdoor unit to which the indoor-outdoor communication

line is connected. All other outdoor units are called "follower units".

(The diagram shows a 28 HP system (16 HP + 12 HP) as an example.)

4-6. Refrigerant Recovery from Failed Outdoor Unit

(Pump-Down Operation under Follower Outdoor Unit Backup Scenario)

– 68 –

Indoor Unit

Control Specifications

skrameReniltuo noitacificepSmetI.ON

Upon power supply reset

1. Identification of outdoor unit When the power supply is reset, the outdoor unit is identified, and control is redirected according to the identification result.

2. Indoor fan speed and air flow direction control availability settings Settings such as indoor fan speed and air flow direction control availability are replaced on the basis of EEPROM data.

3. If power supply reset is performed in the wake of a fault, the check code is cleared. If the abnormality persists after the Start/Stop button on the remote controller is pressed to resume operation, the check code is redisplayed on the remote controller.

Operation selection

1. The operation mode changes in response to an operation selection command issued via the remote controller.

Ts: Temperature setting Ta: Room temperature

Room temp. control

1. Adjustment range - remote controller temperature setting (°C)

2. In heating operation, the temperature setting may be fine-tuned via the DN code “06”.

Factory default

Shift in heating suction temperature (not applicable to remote controller thermo operation)

Automatic capacity control

1. The outdoor unit determines the operational capacities of indoor units according to the difference between Ta and Ts.

Ts: Temperature setting Ta: Room temperature

Remote controller command Control outline

STOP Air conditioner shutdown

FAN Fan operation

COOL Cooling operation

DRY Drying operation

HEAT Heating operation

COOL/DRY HEAT

Wired type 18~29 18~29

Wireless type 17~30 17~30

6420ATAD TES

Temperature setting adjustment +0°C +2°C +4°C +6°C

SET DATA

SD SB S9 S7 S5 S3

Cooling

-1

S3 S5 S7 S9 SB SD SF

Heating

-2

-1

(°C)

5 Control Outline

– 69 –

Fan speed control

1. The fan operates in one of the four speed modes of “HIGH (HH)”, “MED (H)”, “LOW (L)” and “AUTO” on the basis of a command issued via the remote controller. (Concealed duct high static pressure type: HH only)

2. In AUTO fan speed mode, the air speed changes according to the difference between Ta and Ts.

HH > H+ > H > L+ > L > UL or LL

• Control is identical in remote controller thermo and body thermo operation.

Speed modes shown in < > apply to cooling operation under AUTO air conditioner operation mode.

• In AUTO fan speed mode, the fan speed remains the same for 3 minutes each

time a speed change occurs. However, a speed change command issued via the remote controller can override this, and the fan speed changes accordingly.

• At the beginning of cooling operation, a higher speed (steeper downward

temperature gradient) is chosen.

• As long as the temperature difference remains on a boundary line, the fan speed

stays the same.

Figures inside ( ) applies to remote controller thermo operation. Figures outside ( ) applies to body thermo operation. Speed modes shown in < > apply to heating operation under AUTO air conditioner operation mode.

DN code “32” “0000”: Body thermo “0001”: Remote controller thermo

• In AUTO fan speed mode, the fan speed remains the same for 1 minute each

time a speed change occurs. However, a speed change command issued via the remote controller can override this, and the fan speed changes accordingly.

• At the beginning of heating operation, a higher speed (steeper upward

temperature gradient) is chosen.

• As long as the temperature difference remains on a boundary line, the fan speed

stays the same.

• When TC2 60 °C, the fan speed is raised by one step.

TC2: Indoor heat exchanger sensor temperature

3. If the air conditioner goes thermo OFF during heating operation, the fan speed drops down to LL (breeze).

“HEATING STANDBY ” displayed

skrameReniltuo noitacificepSmetI.ON

-0.5

Ts c

+0.5

+1.0

+1.5

+2.0

+2.5

+3.0

Ta (°C)

L L L

H+

L+

A B C

<HH>

<H>

+4.0

+3.0

+2.0

+1.0

Ts h

-1.0

Ta (°C)

(+2.0)

(+1.5)

(+1.0)

(+0.5)

(0)

(-0.5)

L L+ H

H+

<L+> <H> <H+>

<HH>

– 70 –

Cold air discharge prevention control

1. In heating operation, the upper limit of the fan tap is set according to the lower of whichever is the higher between TC2 sensor and TCJ sensor temperatures, on the one hand, and TC1 sensor temperature, on the other.

• If the fan continuously operates in zone B for 6 minutes, it automatically moves

into zone C.

• During defrosting, the control point is shifted by +6°C.

TCJ: Indoor heat exchanger sensor temperature

• In zones D and E, priority is given to the remote controller fan speed setting.

• In zone A, “HEATING STANDBY ” is displayed.

Freeze prevention control (low temp. release)

1. During cooling, the air conditioner is operated in the manner described below according to the temperature readings of the TC1, TC2 and TCJ sensors.

• If zone J operation is detected for 5 minutes, the air conditioner is forced into

thermo OFF.

• In zone K, the timer is put on pause, with the current timer count retained.

• If zone I operation is detected, the timer count is cleared, and the air conditioner

returns to normal operation.

• If continuous zone J operation forces the air conditioner into thermo OFF, the

indoor fan is operated in breeze mode until it moves into zone I. The control is terminated under the following conditions:

Termination conditions

1)TC1 12°C, TC2 12°C, and TCJ 12°C

2)Passage of 20 minutes after stoppage

2. During cooling, the air conditioner is operated in the manner described below according to the temperature readings of the TC2 and TCJ sensors.

• If zone M operation is detected for 45 minutes, the air conditioner is forced into

thermo OFF.

• In zone N, the timer is put on pause, with the current timer count retained.

• When the air conditioner goes back into zone M, timer count is resumed from

the retained value.

• If zone L operation is detected, the timer count is cleared, and the air conditioner

returns to normal operation.

TC1: Indoor heat exchanger sensor temperature

Reset conditions

1)TC1 12°C, TC2 12°C and TCJ 12°C

2)Passage of 20 minutes after stoppage

* With models without

TC2, TC2 is not part of the control parameters.

skrameReniltuo noitacificepSmetI.ON

(°C)

Zone A:OFF Zone B:26 °C or above and

below 28 °C Breeze

Zone C:28 °C or above and

below 30 °C Low

Zone D:30 °C or above and

below 32 °C Medium

Zone E:High

(°C)

Temperature in ( ): If the temperature is below this value when the power is turned on, the air conditioner is forced into thermo OFF.

TC1 TC2, TCJ

P1 10°C(5°C) -10°C

Q1 0°C -14°C

(°C)

TC2, TCJ

P2 5

Q2 -2.0

– 71 –

Cooling oil (refrigerant) recovery control

While the outdoor unit is recovering cooling oil (refrigerant), the indoor units perform the following control tasks: [common for operational (cooling thermo ON / thermo OFF / FAN), as well as nonoperational indoor units]

1)Open the indoor PMV to a certain degree.

2)Engage in recovery control for a specified period of time and return to normal

cooling operation at the end of this period upon terminating the control.

3)Operate the drain pump throughout the recovery control period and for about 1

minute after it.

• Recovery operation normally takes place roughly every 2 hours.

• The opening position of the indoor PMV depending on the type and capacity of the indoor unit.

Heating refrigerant (oil) recovery control

While the outdoor unit is recovering heating refrigerant (oil), the indoor units perform the following control tasks:

1)Open the indoor PMV to a certain degree.

2)Control the indoor fan according to the operation mode.

[Indoor units operating in heating thermo ON/OFF state]

Let the indoor fan continue operating, but turn it off if the temperature of the indoor heat exchanger drops.

[Indoor units operating in FAN mode]

Turn off the indoor fan and display “HEATING STANDBY ” on the remote controller.

[Non-operational indoor units]

Keep the indoor fan turned off.

3)Terminate the recovery operation depending on the TC2 temperature reading. The timing of termination is determined by each indoor unit.

4)Operate the indoor fan and drain pump for about 1 minute after the termination of the recovery operation. (Applicable to 4-way air discharge cassette type, 2way air discharge cassette type and 1-way air discharge cassette type)

• Recovery operation normally takes place roughly every hour.

• The opening position of the indoor PMV depending on the type and capacity of the indoor unit.

Defrosting control

While the outdoor unit is engaged in defrosting control, the indoor units perform the following control tasks:

1)Open the indoor PMV to a certain degree.

2)Control the indoor fan according to the operation mode.

[Indoor units operating in heating thermo ON/OFF state]

Let the indoor fan continue operating for a while, but turn it off as the temperature of the indoor heat exchanger drops.

[Indoor units operating in FAN mode]

Let the indoor fan continue operating.

[Non-operational indoor units]

Keep the indoor fan turned off.

3)As defrosting control comes to an end, it gives way to heating refrigerant (oil) recovery control. (For control details, see “9. Heating refrigerant (oil) recovery control” above.)

• For defrosting commencement conditions, see “

7. Defrosting control (reverse defrosting method)

” above.

• The opening position of the indoor PMV depending on the type and capacity of the indoor unit.

Short intermittent operation compensation control

1. For 5 minutes after startup, the system is forced to continue operating even if it reaches the thermo OFF region.

2. However, priority is given to cooling/heating selection, operation standby, and protective control, so that there is no overriding of thermo OFF in these cases.

Drain pump control

1. During cooling (including DRY operation), the drain pump is operated at all times.

2. If the float switch is activated while the drain pump is in operation, the drain pump continues operating, with the relevant check code displayed.

3. If the float switch is activated while the drain pump is turned off, thermo OFF is forced on the air conditioner, with the drain pump put into operation. If the float switch continues to be activated for about 5 minutes, the drain pump is turned off, with the relevant check code displayed.

Check code [P10]

Elimination of residual heat

1. When the air conditioner is turned off after engaging in heating operation, the indoor fan is operated for about 30 seconds in “breeze” mode.

skrameReniltuo noitacificepSmetI.ON

– 72 –

Filter sign display (not applicable to wireless type) * Provided in

the separately mounted type, TCB-AX21E.

1. The indoor fan’s cumulative hours of operation are counted, and when these exceed the prescribed value (150H/2500H), a filter replacement signal is sent to the remote controller to display a filter sign on it.

2. When a filter reset signal is received from the remote controller, the timer measuring cumulative hours is cleared. If the prescribed hours have been exceeded, the hours count is reset, with the sign on the remote controller display erased.

“FILTER ” displayed

Operation standby Heating standby

<Operation standby> .......... Displayed on remote controller

1. When any of the DN codes listed below is displayed

• “P05” - Detection of an open phase in the power supply wiring

• “P10” - Detection of indoor flooding in at least one indoor unit

• “L30” - Detection of an interlock alarm in at least one indoor unit

2. Forced thermo OFF

• “COOL/DRY” operation is unavailable because at least one indoor unit is

operating in “HEAT” mode.

• “HEAT” operation is unavailable because at least one indoor unit is operating in

“COOL/DRY” mode under priority cooling setting (bit 1 of SW11 on outdoor I/F P.C. board ON).

3. All indoor units not able to engage in any of the above operations stand by in thermo OFF state.

4. The indoor fan has been turned off because the system is engaged in a heat refrigerant (oil) recovery operation.

• “OPERATION STANDBY ” displayed

No display provided on wireless remote controller

<Heating standby> .......... Displayed on remote controller

1. Normal thermo OFF

• During heating, the indoor unit goes thermo OFF as the heating temperature setting is reached.

2. During heating, the fan rotates at a breeze speed (UL or lower) or remains stationary to prevent cold air from being discharged (including defrosting operation).

3. Forced thermo OFF

• “HEAT” operation is unavailable because at least one indoor unit is operating in

“COOL/DRY” mode under priority cooling setting (bit 1 of SW11 on outdoor I/F P.C. board ON).

• “HEATING STANDBY ” displayed

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H051H0052efil ecivres retliF

Type

4-way cassette type 1-way cassette type (SH, YH)

High wall type Floor standing type Floor standing concealed type Floor standing cabinet type

2-way cassette type Ceiling type Concealed duct standard type Concealed duct high static pressure type Slim duct type

– 73 –

Selection of central control mode

1. The range of operations that can be performed via an indoor unit remote controller can be determined through the setting of the central controller.

2. Setting details

• In the case of a wired remote controller, “CENTRAL CONTROL IN PROGRESS ” is displayed (lit up) while in central control mode.

• The display blinks when a control function inaccessible to a remote controller is chosen.

• A wireless remote controller has the same set of control functions, although there is no display. When a control operation is performed via a wireless remote controller while in central control mode, a peep sound alert (5 times) is provided.

Louver control 1. Louver position setting

• When the louver position is changed, the louver turns all the way down before settling in the set position.

• Louver position is adjustable in the range shown in the diagrams below.

• During group operation, position setting can be performed individually or collectively.

2. Swing setting

• The “SWING” sign is displayed, along with alternating images as shown below.

• During group operation, swing setting can be performed individually or collectively.

3. Set louver positions

DC motor 1. When the fan is turned on, the positions of the stator and rotor are determined.

(The motor turns in incremental steps.)

2. The fan operates in accordance with commands issued by the indoor controller. Note:

If the fan is rotating while the air conditioner is turned off due to an inflow of outside air or some other reason, the indoor unit may operate without turning on the fan motor.

Note:

If fan motor lock is detected, the indoor unit is turned off, with an error display provided.

Check code “P12”

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TCC-Link central control

(O: Accessible

: Inaccessible)

Operation

via TCC-

Link central

control

Operation via RBC-AMT32E

RBC-

AMT32E

display

Start/stop

selection

Operation

mode

selection

Timer

setting

Temperature

setting

Fan speed

setting

Air flow

direction

setting

Individual O O O O O O

“CENTRAL CONTROL

PROGRESS”

Central 1

O OOO

Central 2

Central 3 O

O OO

Central 4 O

OOOO

During cooling/drying During heating/fan-only operation

In all operation modes

(alternating)

4-way 1-way (SH) 2-way Ceiling

Normal stop Downward Closed Upward Horizontal

Abnormal stop Downward No change Upward Horizontal

Heating standby Upward Upward Upward Horizontal

Oil/refrigerant recovery Upward Upward No change Horizontal

– 74 –

Outdoor Unit

Item Description of operation, numerical data, and other information Remarks

1. Pulse motor valve (PMV) control

1. PMV1, 2 control (PMV1 and 2)

1)During air conditioner operation, the pulse count of a PMV (pulse motor valve) is controlled between 90 and 1000.

2)During cooling, the PMV opening is controlled on the basis of measurements provided by the TL temperature sensor and the Pd pressure sensor (under cool control).

3)During heating, the PMV opening is controlled on the basis of measurements provided by the TS and TD temperature sensors and the PS pressure sensor (super heat control).

4)PMVs are fully closed when the air conditioner is in thermo OFF state or upon being turned off normally or shut down due to an abnormality.

2. PMV4 control (applicable only to 14 and 16-HP outdoor units) (MMY-MAP1404

and MAP1604 )

1)When using a small-capacity split-type heat exchanger (mainly a sub-heat

exchanger to a combination of a sub-heat exchanger and main heat exchanger) during cooling, the pulse count of the PMV (pulse motor valve) is controlled between 45 and 500. The PMV4 opening is controlled on the basis of measurements provided by the TE1 and TE2 temperature sensors.

2)During heating, the PMV4 may be used as a pressure-relief bypass valve by

opening it to a certain degree.

• During heating, PMV control may be provided with PMV1 alone, operated at 45 pulses (minimum), with PMV2 turned off.

PMV 1

PMV 2

1000

550 500

90 45

Minimum Maximum

Opening of PMV1, 2

PMV 4

500

Minimum Maximum

Opening of PMV4

– 75 –

2. Outdoor fan control

1. Cooling fan control

1)Outdoor fan speed (mode) is controlled on the basis of measurements provided by the Pd pressure sensor.

2)For a specified period after the start of cooling operation, the header outdoor unit controls outdoor fan speed (mode) on the basis of measurements provided by the Pd pressure sensor. Follower units, on the other hand, control outdoor fan speed (mode) on the basis of measurements provided by the TE1 temperature sensor.

* Available control modes are 0 (at rest) to 63.

• The fan speed corresponding to the highest mode varies with the HP capacity of the outdoor unit.

2. Heating fan control

1)Outdoor fan speed (mode) is controlled on the basis of measurements provided by the TE1 temperature sensor.

2)If TE1 > 25°C is continuously detected for 8 minutes, the fan may be turned off. However, this condition is the same as normal thermo OFF, so that fan operation will be restarted.

3)For a specified period after air conditioner startup and during defrosting, this control is disabled.

4)When refrigerant is in extremely short supply, this control may cause the air conditioner to be repeatedly turned on and off.

• The fan speed corresponding to the highest mode varies with the HP capacity of the outdoor unit.

3. Control while follower unit at rest The fan is operated at mode 1 to prevent the accumulation of refrigerant inside the outdoor heat exchanger.

3. Capacity control

1)The compressors of the header and follower units are controlled on the basis of

capacity demand issued by indoor controllers.

2)The two or three compressors featured in an outdoor unit operate on a rotational

basis, so that, every time they come to a stop, their order of startup changes.

3)Where two or more follower units are connected, every time the system goes

thermo OFF or all the compressors featured in the follower units come to a stop, the priority startup order of the follower units changes, as they are also subject to rotational operation.

Item Description of operation, numerical data, and other information Remarks

1.95

2.00

2.15

2.35

2.45

2.65

3.0

[Highest mode]

[Current mode + 1] (Mode raised as rapidly as every second)

[Current mode + 1]/50 seconds

[Hold]

[Current mode + 1]/75 seconds (Mode raised up to 13)

(Mode 1 to highest)

[Current mode - 1]/50 seconds Mode being lowered: Highest mode - 1 → 1

Mode being raised: mode 0 → 1

[Current mode - 1] (Mode lowered as rapidly as every two seconds) (down to mode 0)

Interval control [Mode [0]: 180 seconds Mode [1]: 30 seconds]

pressure

Zone A: Lowest mode, timer count for forced compressor shutdown

Zone B: -2/15 seconds (down to lowest mode)

Zone C: -1/15 seconds (down to lowest mode)

Zone D: Hold (staying at current mode)

Zone E: +1/15 seconds (up to highest mode)

Zone F: Highest mode

TE1 temperature

(°C)

– 76 –

4. Oil level detection control

1)Judgment as to whether an optimum amount of oil is present in the compressor

cases is made on the basis of the temperature readings of sensors TK1 to TK5. This control function is performed by the header unit and each follower unit individually.

2)In concrete terms, judgment is based on the relationship between the temperature

measurements provided by TK1, TK2 or TK3, on the one hand, and those provided by TK4 or TK5, on the other. If there is depletion, oil equalization control takes over.

3)This control function is performed whenever at least one compressor is in

operation.

• Oil level detection takes place regardless of the number of compressors, whether it be one, two or three.

• Rough guide for oil level judgment

1) If TK1 - TK4 14 °C, oil level of compressor 1 is optimum.

2) If TK2 - TK4 14 °C, oil level of compressor 2 is optimum.

3) If TK3 - TK4 14 °C, oil level of compressor 3 is optimum.

Item Description of operation, numerical data, and other information Remarks

(TD2)

(SV2)

(SV3D)

(TK2)

(SV3B)

(TK1)

(SV3A)

Check valve

(TD1)

(TK4)

(SV3E)

(

TK5

)

(SV41)

(SV42)

Oil header

(TD3)

(SV43)

(TK3)

(SV3F)

(SV3C)

OFF

Oil separator

High pressure SW

High

pressure

High pressure SW

Compressor

(inverter)

Compressor

(inverter)

Compressor

(inverter)

Balance pipe Packed valve

– 77 –

5. Oil equation control

This control function is aimed at preventing compressors from running out of oil by evening out the oil supply to outdoor units, and is basically performed by opening/ closing solenoid valves SV3A, SV3B, SV3C, SV3D, and SV3F. There are three control patterns as described below. (For a schematic diagram of oil equalization control, see page 82.)

1. Preparatory control If the oil level judgment result in the memory continues to be “low” for 30 seconds, SV3B is turned on, with SV3D turned on and off intermittently.

• Oil accumulated in the oil separator is returned to the compressor.

2. Oil equation control This control function is performed to transfer oil to the outdoor unit whose oil level is low from other outdoor units. It takes place whenever the header unit registers a low oil level result while at least one of its compressors is turned on or at least one of the follower units issues an oil level equation request. This control function does not apply to a header unit-only system (no follower units connected).

• This is normal oil equalization control.

3. Oil depletion protection control This control function is performed if oil equation control fails to achieve an optimum oil level. In concrete terms, if a low oil level situation continues for 30 minutes, the unit is brought to a protective shutdown, followed by a restart 2 minutes and 30 seconds later. If protective shutdown is repeated three times, the error is confirmed as final. (There will be no more restarts.) The error code is “H07”.

• This protective control is performed when a prolonged low oil level is detected.

6. Refrigerant/ oil recovery control

1. Cooling oil (refrigerant) recovery control Performed during cooling, this control function aims to: periodically collect any refrigerating oil condensate that has built up in inter-unit gas pipes and indoor units and return it to outdoor units when the compressor operation command is inadequate; and prevent the accumulation of refrigerant in outdoor heat exchangers while cooling operation is in progress under low outside air temperature conditions. It is managed by the header outdoor unit.

1)Control commencement conditions

• When cooling operation has continued for at least 2 hours

• When cooling operation has started (compressors have just been turned on, though this does not always happen depending on outside air temperature conditions).

2)Control details

• All compressors currently in operation are operated at the minimum speed, with those currently not in operation turned on.

• Indoor units are set to the cooling oil (refrigerant) recovery control mode, with their indoor PMVs opened to a certain degree.

• Compressors are operated at the target speed.

• After recovery control is performed for a specified period of time, it is terminated, and normal cooling operation resumes.

• Cooling oil recovery control takes place approximately every 2 hours.

• Control du ration is about 2 to 5 minutes, though it varies according to the operating conditions of the system.

2. Heating refrigerant (oil) recovery control Performed during heating, this control function aims to recover any liquid refrigerant trapped inside indoor units that have been turned off. It also serves the additional purposes of recovering indoor/outdoor refrigerant after defrosting and recovering oil present in outdoor heat exchangers during heating overload operation. This control function is managed by the header outdoor unit.

1)Control commencement conditions

• When heating operation has started (compressors have just been turned on)

• When heating takes over upon completion of defrosting

• When heating operation has continued for 60 minutes

2)Control details

• All compressors currently in operation are operated at the minimum speed, with those currently not in operation turned on.

• Indoor units are set to the heating refrigerant (oil) recovery control mode, with their indoor PMVs opened to a certain degree.

• Compressors are operated at the target speed.

• Upon completion of refrigerant recovery for all the indoor units, normal cooling operation resumes.

• Heating oil recovery control takes place approximately every hour.

• Control du ration is about 2 to 10 minutes, though it varies according to loading conditions.

• Compressor rotational speed varies with control conditions, indoor unit capacity, and outdoor unit specification.

Item Description of operation, numerical data, and other information Remarks

– 78 –

7. Defrosting control (reverse defrosting method)

1. Defrosting commencement conditions

• During heating operation, the cumulative duration of operation in which TE1 sensor temperature falls below frost formation temperature is measured, and when this reaches 55 minutes, defrosting control is introduced. (Just after startup or upon changeover from cooling to heating, the target cumulative duration is 25 minutes.)

* If the outdoor units are a combination of different models, all the units begin engaging

in defrosting control as soon as one of them satisfies defrosting commencement conditions.

• Frost formation temperature is -1.5 °C.

• If the outdoor units are a combination of different models, defrosting operation, once started, cannot be manually terminated for about 2 minutes.

2. Details of defrosting control

1)All compressors currently in operation are operated at the minimum speed.

2)When a specified amount of time passes from the time the compressors reached the minimum speed, the outdoor fans are turned off by closing the 4-way valves.

3)All compressors currently not in operation are turned on and operated at the target rotational speed for defrosting control.

• To protect the refrigerating cycle circuit, the fan mode may be controlled during defrosting.

3. Defrosting termination conditions

• Defrosting termination conditions are met when the TE1 temperature sensor measurement reaches a specified value (roughly 12 °C) a certain period of time after the commencement of defrosting control. In that event, defrosting termination control takes over.

* If the outdoor units are a combination of different models, defrosting termination

control commences when all the units satisfy the defrosting termination conditions. As long as one or more outdoor units are yet to satisfy the defrosting termination conditions, those that have engage in standby operation.

• During defrosting control, compressors are controlled so that their speeds do not exceed 76.6 rps.

4. Details of defrosting termination control

1)Compressors are operated at the standby operation speed.

2)When a specified amount of time passes, the 4-way valves are opened.

3)Indoor heating refrigerant recovery control is performed. For control details, see “ 6. Refrigerant/oil recovery control”.

• During standby operation, compressor speed is in the 24-33.5 rps range. (It varies from outdoor unit to outdoor unit.)

Item Description of operation, numerical data, and other information Remarks

– 79 –

8. Release valve control

1. SV2 gas balance control This control function is aimed at achieving gas balance by opening SV2 while compressors are turned off so as to reduce their startup load the next time they are turned on. It is individually performed by the header outdoor unit and each follower outdoor unit.

1)Control conditions

• In cooling, compressors have been turned off.

• In heating, the header unit has been shut down.

2)Control details

• The control point is changed according to P (Pd pressure - Ps pressure) registered just before the compressors were turned off.

• When

P P1, SV2 is opened. When this results in P < P2, SV2 is closed.

• When P < P1, SV2 is closed.

2. SV2 high pressure release control This control function is aimed at mitigating pressure rise while a compressor is in operation at low speeds.

1)Control conditions

• Heating operation is in progress (except periods of defrosting control).

• A lone compressor from the header unit is in operation at low speeds of up to 36 rps.

2)Control details

• When Pd pressure becomes 3.4 MPa, SV2 is opened.

• When Pd pressure becomes 2.8 MPa, SV2 is closed.

3)Termination conditions

• Shutdown, thermo OFF, defrosting operation, or cooling operation.

• The number of header unit compressors in operation increases to two or more.

• At least one follower unit compressor is turned on.

• The speed of the compressor rises to 40 rps or more.

3. SV2 low pressure release control This control function is aimed at preventing a rapid fall in pressure during transient operation. It is individually performed by the header outdoor unit and each follower outdoor unit. The control is always provided except during periods of stoppage or thermo OFF.

1)Control details

• When Ps pressure becomes 0.16 MPa, SV2 is opened.

• When Ps pressure becomes > 0.20 MPa, SV2 is closed.

Item Description of operation, numerical data, and other information Remarks

(Unit: MPa)

Control points

for Pd

pressure

P1, P2

gnilooCgnitaeH

Header unit compressors Header unit compressors Header unit compressors

NOFFOFFO

P1 P2 P1 P2 P1 P2

Header unit 1.3 1.1 1.3 1.1 — —

Follower unit 1.3 1.1 1.3 1.1 0.5 0.4

– 80 –

8. Release valve control (cont’d)

4. SV41, 42, 43 low pressure release control This control function is aimed at providing low pressure protection, and is individually performed by the header unit and each follower unit. The control takes place during defrost operation, heating startup pattern control operation, and cooling operation.

1)Control details (heating)

When Ps pressure becomes 0.1 MPa, SV41, 42 and 43 are opened; when Ps pressure becomes 0.15 MPa, SV41, 42 and 43 are closed.

2)Control details (cooling)

When Ps pressure and Pd pressure become 0.14 MPa and 1.8 MPa, respectively, SV41 and 42 are opened; when Ps pressure and Pd pressure become 0.19 MPa and 2.2 MPa, respectively, SV41 and 42 are closed.

5. SV5 high pressure release control This control function is aimed at mitigating pressure rise and is only performed by the header unit.

1)Control details (heating)

When Pd pressure and compressor speed become 3.4 MPa and 38 rps, respectively, during heating, with a single compressor in operation, SV5 is opened; when Pd pressure becomes 2.7 MPa, or compressor speed 64 rps, SV5 is closed.

9. High pressure release compressor shutdown control

This control function is aimed at automatically shutting down a compressor in an outdoor unit depending on Pd pressure. It is individually performed by the header unit and each follower unit.

1)Control details

• Compressors are shut down when Pd pressure reaches or exceeds P0.

• The compressor restart prevention timer (2 minutes 30 seconds) is set, and the control terminated.

• When Pd P0 = 3.45 MPa, compressor No. 2 or No. 3 (the last one of three compressors in terms of startup order in a three compressor configuration) is shut down.

• When Pd P0 = 3.5 MPa, compressor No. 1 (the first compressor in terms of startup order) is shut down.

10. Case heater control

There are two types of case heaters: a compressor case heater and an accumulator case heater. This control function is aimed at preventing the accumulation of refrigerant in those cases, and is performed by all outdoor units. If the power supply has not been turned on for a specified period before a postinstallation test run, compressor failure may occur. Similarly, when starting compressors after a long period of no power supply, it is recommended that the power supply be turned on for a while before operation is resumed, just like a post-installation test run. This control function is sometimes used alongside an electrical charging of the compressor motor windings. In this case, a charging sound may be heard, but this is normal.

1)Control details

• The heaters are turned on while the compressors are turned off.

• The heaters are turned off when T0 sensor temperature becomes 28 °C, and are turned back on when T0 sensor temperature becomes 25 °C.

• When the compressors are turned on, the heaters are kept on for 10 minutes.

Item Description of operation, numerical data, and other information Remarks

– 81 –

11. A3-IPDU control

IPDU controls inverter compressors by issuing commands relating to compressor speeds, speed increases/decreases, and current release control values via the interface P.C. board. The main control functions of the IPDU P.C. board are described below.

1. Current release control To prevent inverter input current from exceeding the specified value, output frequency is controlled with AC input current as detected by T02 mounted on the control P.C. board.

Current control values for various outdoor units are shown below.

2. Heat sink temperature detection control

1)This control function is aimed at protecting IGBT from overheating via a thermistor

(TH sensor) mounted in the compressor drive module (Q201) of A3-IPDU.

2)When TH 85 °C is detected, the fan operation mode is raised by one step,

followed by a series of additional step-ups right up to the highest mode at a rate of one step/5 seconds.

3)After step 2), the normal fan mode is restored when TH falls to < 85 °C.

4)When TH 105 °C, compressors are shut down.

5)Compressors are restarted 2 minutes and 30 seconds later, with an error count of

1 recorded. If this is repeated four times (error count reaches 4), the error is confirmed as final. The error [P07] is displayed. (There will be no more restarts.)

* Possible causes of the confirmed error include a heat buildup in the outdoor unit, fan

abnormality, blockage of the cooling duct, and IPDU P.C. board fault.

* The TH temperature used in this control function is the highest registered by A3-

IPDU1, A3-IPDU2, and A3-IPDU3.

3. Overcurrent protection control

1)When the overcurrent protection circuit on an IPDU P.C. board detects an

abnormal current, the compressor is shut down.

2)The compressor is restarted 2 minutes and 30 seconds later, with an error count

of 1 recorded. If the compressor successfully operates for at least 10 minutes after a restart, the error count is cleared.

3)If the error count reaches 8, the error is confirmed as final.

• A3-IPDU1, 2 and 3 are each provided with a TH sensor.

4. High pressure SW control

1)When the high pressure SW of an inverter compressor is activated, the compressor is shut down with an error count of 1 recorded.

2)The compressor is restarted 2 minutes 30 seconds later, and, if it successfully operates for at least 10 minutes, the error count is cleared.

3)If the error count reaches 4, the error is confirmed as final. The error “P04” is displayed.

• Connected to A3-IPDU, the high-pressure SW is normally closed.

Item Description of operation, numerical data, and other information Remarks

Zone C

Zone B

Zone A

Zone D

I1 I2

Current

Zone A:Compressors are operated normally. Zone D:The current operating frequency is maintained. Zone B:Operating frequency is lowered. Zone C:The lowering of operating frequency is halted

to maintain the current frequency.

Outdoor unit

HP capacity

I1 I2

16 9.8 9.3

14 8.7 8.2

12 10.5 10.0 10 9.5 9.0

89.08.5

– 82 –

1 Cooling operation under low outside temperature conditions

1) If pressure falls to extremely low levels, indoor units may be shut down via freeze prevention control based on the indoor TC sensor.

2) If pressure falls to extremely low levels, frequency may be reduced via cooling capacity control.

3) When the discharge temperature sensor reading falls below 60°C, the frequency may be increased above the level called for by the command received from the indoor unit.

2 PMV (Pulse Motor Valve)

1) When the power is turned on, PMVs generate a tapping sound as they are initialized. If this sound is not heard, there is a possibility of faulty PMV operation. However, in a noisy environment, it may simply be drowned out by ambient noise.

2) Do not separate the actuator (head section) from any PMV during operation. It may result in an inaccurate opening.

3) When transporting (relocating) the set, do not, under any circumstances, keep the actuator separated. It may damage the valve by causing it to close and exposing it to pressure from sealed liquid.

4) When reattaching the actuator after its removal, push it in firmly until a click sound is heard. Then, turn the power off and back on again.

)*4021PAM-YMM( tinu rewolloF)*4061PAM-YMM( tinu redaeH

PMV1

TD2

TS1

SV2

TE1

SVD3

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

HPS

TD1

SV3E

TK5

SV41

SV42

PMV4

TE2

TD3

SV43

TK3

SV6

SV3F

SV3C

PMV1

TD2

TS1

SV2

SV5

TE1

SV3D

PMV2

TK2

SV3B

TK1

SV3A

HPS HPS

TD1

TK4

SV3

TK5

SV41

SV42

SV3C

Balance pipe

Liquid pipe

Gas pipe

Unit transferring oil

Unit receiving oil

4-way valve

High pressure sensor

Low pressure sensor

O.S.

Accumulator

Liquid tank

Compressor

– 83 –

<New 4-way Cassette Type> (MMU-AP 4HP*)

Indoor control P.C. board (MCC-1570)

“1:1 model” connection interface (optional)

Indoor unit

Wired (Simple) header remote controller

(up to 2 units)

Schedule timer

(when in weekly timer mode)

Power

supply

circuit

Function setting

Key switch

EEPROM

MCU

Switch setting

Power supply circuit

Transformer

DC5V

CN2

CN1

DC5V

MCU

EEPROM

Remote controller

communication circuit

Display

LCD

MCU

Rechargeable

battery

MCU

LCD

driver

MCU

External output

DC 280V

DC5V

DC12V

DC20V

PMV

×4

Indoor/outdoor communication

U1 U2

Display

LED

Display

LCD

Function setting

Key switch

Power

supply

circuit

Central

control

remote

controller

(optional)

Remote controller

communication

circuit

Remote

controller

communication

circuit

AI-NET

communication

circuit

Louver

motor

Drain

pump

Indoor

fan

motor

Fan motor

control circuit

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

Driver

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

synchronization

signal input circuit

BUS

communication

circuit

Outdoor

unit

Outdoor

unit

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Power

source

Power

source

Sameas left

Up to 8 units can be

connected. *1

#2 #3

(In case of

AI-NETWORK)

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

*1 Only up to 7 units if a

“1:1 model” connection

interface is installed with

2 wired (Simple) remote

controllers connected.

*2 The “1:1 model” connection

interface can only be

installed in one unit.

*3 A schedule timer cannot

be connected to a sub

remote controller.

Applied Control and Functions

(including Circuit Conﬁguration)

6-1. Indoor Controller Block Diagram

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

– 84 –

Schedule timer

EEPROM

DC5V

CN2 CN1

DC5V

EEPROM

CPU

DC 280V

DC5V

DC12V

DC20V

BABA AB

LNU1

U1 U2

Power

supply

circuit

Function setting

Key switch

Remote controller

communication circuit

Display

LCD

Display

LED

Rechargeable

battery

LCD

driver

Display

LCD

Function setting

Key switch

Power

supply

circuit

Switch setting

Power supply circuit

Transformer

Central

control

remote

controller

(optional)

Remote controller

communication

circuit

AI-NET

communication

circuit

(In case of

AI-NETWORK)

CPU

H8/3687

Indoor control P.C. board (MCC-1402)

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

Not applicable to concealed duct

standard type Slim Duct Type

Power supply circuit

Fan motor

control circuit

CPU

TMP88CH

47FG

(TMP88PH

47FG)

External output

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

Driver

Remote

controller

communication

circuit

CPU

H8/3039

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Outdoor

unit

Outdoor

unit

Power

source

Power

source

#2 #3

Sameas left

Up to 8 units can be

connected. *1

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

*1 Only up to 7 units if a

“1:1 model” connection

interface is installed with

2 wired (Simple) remote

controllers connected.

*2 The “1:1 model” connection

interface can only be

installed in one unit.

*3 A schedule timer cannot

be connected to a sub

remote controller.

Wired (Simple) header remote controller

(up to 2 units)

– 85 –

<1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type, Fresh Air Intake Type>

U1 U2

DC5V

CN2 CN1

DC5V

EEPROM

CPU

DC5V

DC12V

DC20V

NU1

U1 U2

EEPROM

Power

supply

circuit

Function setting

Key switch

Remote controller

communication circuit

Display

LCD

Display

LED

Rechargeable

battery

LCD

driver

Display

LCD

Function setting

Key switch

Power

supply

circuit

Central

control

remote

controller

(optional)

(In case of

AI-NETWORK)

Switch setting

Power supply circuit

Remote controller

communication

circuit

AI-NET

communication

circuit

Transformer

Indoor control P.C. board (MCC-1403)

CPU

H8/3687

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

Not applicable to

concealed duct high

static pressure type

* 1-way Type only

Not applicable to concealed

duct high static pressure type

Not applicable to 1-way

air discharge cassette

type (compact)

Driver

Remote

controller

communication

circuit

CPU

H8/3039

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

External

output

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Outdoor

unit

Outdoor

unit

Power

source

Power

source

Sameas left

#2 #3

Up to 8 units can be

connected. *1

Fan motor

relay circuit

Transformer

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

Wired (Simple) header remote controller

(up to 2 units)

Schedule timer

*1 Only up to 7 units if a

“1:1 model” connection

interface is installed with

2 wired (Simple) remote

controllers connected.

*2 The “1:1 model” connection

interface can only be

installed in one unit.

*3 A schedule timer cannot

be connected to a sub

remote controller.

– 86 –

<New 4-way Cassette Type> (MMU-AP 4HP*)

MCU

DC5V

MCU

EEPROM

MCU

DC 280V

DC5V

DC12V

DC20V

AB AB

LNU1

U1 U2

Central

control

remote

controller

(optional)

(In case of

AI-NETWORK)

Switch setting

Power supply circuit

Remote controller

communication

circuit

AI-NET

communication

circuit

Transformer

Indoor control P.C. board (MCC-1570)

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

×4

Fan motor

control circuit

Driver

Remote

controller

communication

circuit

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

Not applicable to concealed

duct high static pressure type

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

External

output

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Outdoor

unit

Outdoor

unit

Power

source

Power

source

Sameas left

#2 #3

Up to 8 units can be

connected. *1

*1 Only up to 7 units

if a “1:1 model”

connection interface

is installed with

2 wireless remote

Emergency

operation SW

Wireless remote controller kit

Sensor P.C. board

Power

supply circuit

Remote controller

communication

circuit

Buzzer

Sensor circuit

Display LED

Function

setting SW

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

controller kits

connected.

*2 The “1:1 model”

connection interface

can only be installed

in one unit.

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

– 87 –

CPU

DC5V

EEPROM

DC 280V

DC5V

DC12V

DC20V

RSU1

U1 U2

Central

control

remote

controller

(optional)

(In case of

AI-NETWORK)

Switch setting

Power supply circuit

Remote controller

communication

circuit

AI-NET

communication

circuit

Transformer

Indoor control P.C. board (MCC-1402)

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

Not applicable to concealed duct

standard type Slim Duct Type

CPU

H8/3687

Power supply circuit

Fan motor

control circuit

CPU

TMP88CH

47FG

(TMP88PH

47FG)

Remote

controller

communication

circuit

Driver

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

Not applicable to concealed

duct high static pressure type

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

External

output

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Outdoor

unit

Outdoor

unit

Power

source

Power

source

Sameas left

#2 #3

Up to 8 units can be

connected. *1

Emergency

operation SW

Wireless remote controller kit

Sensor P.C. board

Power

supply circuit

Remote controller

communication

circuit

Buzzer

Sensor circuit

Display LED

Function

setting SW

CPU

H8/3039

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

*1 Only up to 7 units

if a “1:1 model”

connection interface

is installed with

2 wireless remote

controller kits

connected.

*2 The “1:1 model”

connection interface

can only be installed

in one unit.

– 88 –

<1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type, Fresh Air Intake Type>

DC5V

EEPROM

DC5V

DC12V

DC20V

NU1

U1 U2

Central

control

remote

controller

(optional)

(In case of

I-NETWORK)

Switch setting

Power supply circuit

Remote controller

communication

circuit

AI-NET

communication

circuit

Transformer

CPU

H8/3687

Indoor control P.C. board (MCC-1403)

Outdoor

unit

Outdoor

unit

Power

source

Power

source

Sameas left

#2 #3

Up to 8 units can be

connected. *1

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Wireless remote controller kit

Remote controller

communication

circuit

Sensor

section

Display

section

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

Not applicable to

concealed duct high

static pressure type

Power supply circuit

Driver

Remote

controller

communication

circuit

CPU

H8/3039

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

Not applicable to concealed

duct high static pressure type

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

External

output

Transformer

Fan motor

control circuit

* 1-way Type only

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

*1 Only up to 7 units

if a “1:1 model”

connection interface

is installed with

2 wireless remote

controller kits

connected.

*2 The “1:1 model”

connection interface

can only be installed

in one unit.

– 89 –

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

Controller Kit Connected

<New 4-way Cassette Type> (MMU-AP 2H)

MCU

DC 280V

MCU

DC5V

CN2 CN1

DC5V

MCU

EEPROM

MCU

DC5V

DC12V

DC20V

AB AB AB

U1 U2

EEPROM

Power

supply

circuit

Function setting

Key switch

Remote controller

communication circuit

Display

LCD

Display

LED

Rechargeable

battery

LCD

driver

Display

LCD

Function setting

Key switch

Power

supply

circuit

Switch setting

Power supply circuit

Transformer

Central

control

remote

controller

(optional)

Remote controller

communication

circuit

AI-NET

communication

circuit

(In case of

AI-NETWORK)

Indoor control P.C. board (MCC-1570)

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

×4

Power supply circuit

Fan motor

control circuit

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

Driver

Remote

controller

communication

circuit

Not applicable to concealed

duct high static pressure type

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

External

output

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Outdoor

unit

Outdoor

unit

Power

source

Power

source

#2 #3

Sameas left

Up to 8 units

can be

connected. *1

Emergency

operation SW

Wireless remote controller kit

Sensor P.C. board

Power

supply circuit

Remote controller

communication

circuit

Buzzer

Sensor circuit Display LED

Function

setting SW

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

Wired (Simple) header remote controller

(up to 2 units)

Schedule timer

*1 Only up to 7 units

if a “1:1 model”

connection interface

is installed.

*2 The “1:1 model”

connection interface

can only be installed

in one unit.

*3 A schedule timer

cannot be connected

to a simple remote

controller.

– 90 –

DC 280V

CPU

DC5V

CN2 CN1

DC5V

EEPROM

CPU

DC5V

DC12V

DC20V

AB AB AB

U1 U2

EEPROM

Power

supply

circuit

Function setting

Key switch

Remote controller

communication circuit

Display

LCD

Display

LED

Rechargeable

battery

LCD

driver

Display

LCD

Function setting

Key switch

Power

supply

circuit

Outdoor

unit

Outdoor

unit

Power

source

Power

source

#2 #3

Sameas left

Up to 8 units can be

connected. *1

Emergency

operation SW

Wireless remote controller kit

Sensor P.C. board

Power

supply circuit

Remote controller

communication

circuit

Buzzer

Sensor circuit Display LED

Function

setting SW

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

Driver

Remote

controller

communication

circuit

ot applicable to concealed

duct high static pressure type

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

External output

CPU

H8/3039

Power supply circuit

Fan motor

control circuit

CPU

TMP88CH

47FG

(TMP88PH

47FG)

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

Not applicable to concealed duct

standard type Slim Duct Type

Indoor control P.C. board (MCC-1402)

Switch setting

Power supply circuit

Transformer

Central

control

remote

controller

(optional)

Remote controller

communication

circuit

AI-NET

communication

circuit

(In case of

AI-NETWORK)

CPU

H8/3687

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

Wired (Simple) header remote controller

(up to 2 units)

Schedule timer

*1 Only up to 7 units

if a “1:1 model”

connection interface

is installed.

*2 The “1:1 model”

connection interface

can only be installed

in one unit.

*3 A schedule timer

cannot be connected

to a simple remote

controller.

– 91 –

<1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type, Fresh Air Intake Type>

DC5V

CN2 CN1

DC5V

EEPROM

CPU

DC5V

DC12V

DC20V

AB AB AB

LNU1

U1 U2

EEPROM

Power

supply

circuit

Function setting

Key switch

Remote controller

communication circuit

Display

LCD

Display

LED

Rechargeable

battery

LCD

driver

Display

LCD

Function setting

Key switch

Power

supply

circuit

Outdoor

unit

Outdoor

unit

Power

source

Power

source

#2 #3

Sameas left

Up to 8 units can

be connected. *1

Indoor/outdoor communication

Outdoor

unit

Power source

1Ø 220-240V, 50Hz

1Ø 220V, 60Hz

Central

control

remote

controller

(optional)

(In case of

I-NETWORK)

Switch setting

Power supply circuit

Remote controller

communication

circuit

AI-NET

communication

circuit

Transformer

CPU

H8/3687

Indoor control P.C. board (MCC-1403)

PMV

Louver

motor

Drain

pump

Indoor

fan

motor

Not applicable to concealed duct high static pressure type

Power supply circuit

Driver

Remote

controller

communication

circuit

TA sensor

TCI sensor

TC2 sensor

TCJ sensor

Float input

Not applicable to concealed

duct high static pressure type

CPU

H8/3039

In operation

Alarm

Getting ready

Thermostat ON

COOL

HEAT

FAN

synchronization

signal input circuit

BUS

communication

circuit

External

output

Transformer

Fan motor

control circuit

Wireless remote controller kit

Remote controller

communication

circuit

Sensor

section

Display

section

* 1-way Type only

“1:1 model” connection interface (optional)

Indoor unit

“1:1 model”

connection

interface P.C.

board

(MCC-1401)

Wired (Simple) header remote controller

(up to 2 units)

Schedule timer

*1 Only up to 7 units

if a “1:1 model”

connection interface

is installed.

*2 The “1:1 model”

connection interface

can only be installed

in one unit.

*3 A schedule timer

cannot be connected

to a simple remote

controller.

– 92 –

6-2. Indoor Printed Circuit Board

MCC-1570 <4-way Cassette Type> (MMU-AP 4HP*)

TA sensor

CN104(yellow), DC5V

TCJ sensor

CN102(red), DC5V

TC2 sensor

CN101(black), DC5V

FAN DRIVE

CN32(white), DC12V

. Optional output

CN60(white), DC12V

Optional power supply

CN309(yellow), AC200V

Power supply

CN67(black)

Microcomputer power source LED

D501(red)

DC fan output

CN333(white)

Louver

CN510(white), DC12V

Indoor/outdoor communication

CN40(blue)

DC fan return

CN334(white)

HA(T10)

CN61(yellow), DC12V

Remote controller

CN41(blue), DC20V

Remote controller communication LED

D504(green)

High-ceiling adjustment SW

SW501

TC1 sensor

CN100(brown), DC5V

Float SW

CN34(red), DC12V

FILTER

CN70(white), DC5V

Drain pump

CN504(white), DC12V

Indoor/outdoor-cum-central control communication

D503(yellow)

Remote controller power source LED

D403(red)

EXCT

CN73(red), DC5V

External error input

CN80(green), DC12V

CHK

CN71(white), DC5V

Output for FS unit

CN81(black), DC12V

PMV output

CN82(blue), DC12V

DISP

CN72(white), DC5V

* Doubling as central

control communication

– 93 –

MCC-1402 <Compact 4-way Cassette Type, 1-way Cassette (SH) Type, 2-way Cassette Type, Ceiling Type, Concealed Duct Standard Type, Slim Duct Type, High Wall Type>

DC fan output

PMV output

DC fan return

Float SW

Fan output

Optional output

HA(T10)

CHK

DISP

(Used for servicing)

EXCT

TCJ sensor

TCI sensor

TC2 sensor

External error input

Remote controller jumper

Indoor/outdoor communication

(doubling as central control communication)

Indoor/outdoor communication (backup)

Drain pump output

Optional power suppl

Power supply

EEPROM High-ceiling adjustment input

Filter/optional error input

Microcomputer operation LED

TA sensor

Flap

Remote controller

power source LED

– 94 –

MCC-1403 <1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type, Fresh Air Intake Type>

AC fan output

Float SW

HA(T10)

Optional output

DISP

CHK

TC2 sensor

TA sensor

TCJ sensor

EXCT

Louver

Power supply

Power supply transformer (secondary side)

(AC 11, 14, 20V)

EEPROM

Indoor/outdoor communication

TCI sensor

PMV output

Used for

servicing

* Short plug inserted in

concealed duct

External error

input

Filter/optional error input

Power supply

transformer

(primary side)

Indoor/outdoor communication

(backup)

Remote

controller power

source LED

Remote controller

jumper

(doubling as central

control communication)

Drain pump

output

Optional

power supply

Microcomputer

operation LED

– 95 –

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

Board

Fan output

Optional output

FILTER

Optional error

CHK

Operation check

DISP

Display mode

EXCT

Demand

CN32

CN61

CN60

CN80

CN70

CN71

CN72

CN73

121

234

123

561

Function

Connector No. Pin No.

DC12V

Output

Start/stop input

0V(COM)

Remote controller disabling input

In-operation output

DC12V(COM)

Alarm output

DC12V(COM)

Defrosting output

Thermostat ON output

Cooling output

Heating output

Fan output

DC12V(COM)

External error input

Check mode input

Display mode input

Demand input

Start/stop input for HA (J01: In place/Removed = Pulse input (factory default)/Step input)

Enables/disables start/stop control via remote controller

ON during operation (HA answerback signal)

ON while alarm ON

ON while outdoor unit defrosted

ON while real thermostat ON (compressor ON)

ON while air conditioner in cooling or related operation (COOL, DRY or cooling under AUTO mode)

ON while air conditioner in heating operation (HEAT or heating under AUTO mode)

ON while indoor fan ON (air cleaner in use or via interlock wiring)

skrameRn

itac i

fi c

epS

Generates test code L30 and automatically shuts down air conditioner (only if condition persists

for 1 minute)

Factory default setting to be humidifier (evaporative + drain pump OFF)

Used for control of optional error input (display of action of protective device for equipment connected externally)

* "Optional error input" setting to be performed via the remote controller (DN = 24)

Used for indoor operation check (prescribed operational status output, such as indoor fan "H" or

drain pump ON, to be generated without communication with outdoor unit or remote controller)

Product display mode - Communication just between indoor unit and remote controller enabled (upon turning on of power)

Timer short-circuited out (always)

Imposes thermostat OFF on indoor unit

Factory default setting: ON when indoor unit in operation and OFF when indoor unit at rest

* Fan can be operated on its own by pressing FAN button on remote controller (DN = 31)

External

error input

"FILTER/optional/humidifier

setting" input

– 96 –

6-4. Test Operation of Indoor Unit

Check function for operation of indoor unit (Functions at indoor unit side)

This function is provided to check the operation of the indoor unit singly without communication with the remote controller or the outdoor unit. This function can be used regardless of operation or stop of the system. However, if using this function for a long time, a trouble of the equipment may be caused. Limit using this function within several minutes.

[How to operate]

1) Short-circuit CHK pin (CN71 on the indoor P.C. board).

The operation mode differs according to the indoor unit status in that time. Normal time: Both float SW and fan motor are normal. Abnormal time: Either one of float SW or fan motor is abnormal.

2) Restricted to the normal time, if short-circuiting DISP pin (CN72 on the indoor P.C. board) in addition to

short-circuit of CHK pin (CN71 on the indoor P.C. board), the minimum opening degree (30pls) can be set to the indoor PMV only. When open DISP pin, the maximum opening degree (1500pls) can be obtained again.

[How to clear]

Open CHK pin. While the system is operating, it stops once but automatically returns to operation after several minutes.

• To exchange the indoor PMV coil, set the indoor PMV to Max. opening degree.

• For the detailed positions of CHK pin (CN71 on indoor P.C. board) and DISP pin (CN72 on indoor P.C. board), refer to the indoor P.C. board MCC-1570.

Short-circuit of CHK pin

Normal time

Abnormal time

DISP pin open DISP pin short circuit

potS)H()H(rotom naF

Indoor PMV (*) Max. opening degree (1500pls) Min. opening degree (30pls) Min. opening degree (30pls)

pots etaidemmIlatnoziroHlatnoziroHrevuoL

NONONOpmup niarD

derongi llAderongi llAder

ongi llAnoitacinummoC

sehsalFsthgiLsthgiLDEL draob .C.P

– 97 –

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

(When performing this task, be sure to use a wired remote controller.)

<Procedure> To be performed only when system at rest

1 Push the + + buttons simultaneously and hold for at

least 4 seconds.

The unit No. displayed first is the address of the header indoor unit in group control. Then the fan and louver of the selected indoor unit move.

2 Each time the “Select unit” side of the button is pressed,

one of the indoor unit Nos. under group control is displayed in turn. Then the fan and louver of the selected indoor unit move.

3 Use the button to select the CODE No. (DN code) of the

desired function.

4 Use the button to select the desired SET DATA associated

with the selected function.

5 Push the button. (The display changes from flashing to

steady.)

• To change the selected indoor unit, go back to step 2.

• To change the selected function, go back to step

6 When the button is pushed, the system returns to normal off state.

SET

TIME

TIMER SET

TEST

FILTER RESET

TEMP.

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

126

UNIT LOUVER

– 98 –

Function CODE No. (DN Code) Table (Includes All Functions Needed to Perform Applied Control on Site)

tnempihs tAnoitpircseDmetIND

Filter display delay timer 0000: None

0002: 2500H 0004: 10000H

0001: 150H 0003: 5000H

According to type

Dirty state of filter 0000: Standard

0001: High degree of dirt (Half of standard time)

0000: Standard

Central control address 0001: No.1 unit

0099: Unfixed

to 0064: No.64 unit 0099: Unfixed

Specific indoor unit priority

ytiroirp oN :0000ytiroirP :1000ytiroirp oN :0000

Heating temp shift 0000: No shift

0002: +2°C to

0001: +1°C 0010: +10°C (Up to +6 recommended)

0002: +2°C (Floor type 0000: 0°C)

Existence of [AUTO] mode

0000: Provided 0001: Not provided (Automatic selection from connected outdoor unit)

0001: Not provided

Cooling only 0000: Heat pump

0001: Cooling only (No display of [AUTO] [HEAT])

0000: Heat pump

ledom no gnidne

peD4-way Cassette :1000epyT

type

yticapac ot gnidroccA4300 ot 1000 dexifnU :0000yticapac tinu roodnI

type 12 Line address 0001: No.1 unit to 0030: No.30 unit 0099: Unfixed 13 Indoor unit address 0001: No.1 unit to 0064: No.64 unit 0099: Unfixed

Group address 0000: Individual

0002: Follower unit of group

0001: Header unit of group 0099: Unfixed

Louver type (Air direction adjustment)

0000: No louver 0001: Swing only According to type 0002: (1-way Cassette type, Ceiling type)

0003: (2-way Cassette type) 0004: (4-way Cassette type)

Temp difference of [AUTO] mode selection COOL HEAT, HEAT

COOL

ged 3 :3000ged 01 :0100otged 0 :0000

(Ts±1.5)

(For setup temperature, reversal of COOL/HEAT by ± (Data value)/2)

Automatic restart of power failure

enoN :0000tratseR :1000enoN :0000

Selection of option/error input (CN70)

0000: Filter input 0002: None

0001: Alarm input (Air washer, etc.) 0002: None

HA terminal (CN61) select

0000: Usual 0002: Fire alarm input

0001: Leaving-ON prevention control 0000: Usual

(HA terminal)

elbaliavanU :

0000elbaliavA :1000elbaliavanU :0000lortnoc naf gnitalitneV13

32 TA sensor selection 0000: Body TA sensor 0001: Remote controller sensor 0000: Body TA sensor

C° :0000F° :1000)tnempihs yrotcaf ta( C

° :0000tceles tinu erutarepmeT33

Swing mode 0001: Standard

0003: Cycle swing

0002: Dual swing 0001: Standard

Louver fixed position (Louver No.1)

0000: Release 0005: Downward discharge position

0001: Horizontal discharge position 0000: Not fixed

Louver fixed position (Louver No.2)

0000: Release 0005: Downward discharge position

0001: Horizontal discharge position 0000: Not fixed

Louver fixed position (Louver No.3)

0000: Release 0005: Downward discharge position

0001: Horizontal discharge position 0000: Not fixed

Louver fixed position (Louver No.4)

0000: Release 0005: Downward discharge position

0001: Horizontal discharge position 0000: Not fixed

– 99 –

High-ceiling adjustment (Air flow selection)

1-way cassette (SH)

2-way cassette

* The high-ceiling installation of model AP007 to AP012 can only be

undertaken when the combined capacity of the indoor units connected is 100% or less than the capacity of the outdoor unit. Do not proceed with high-ceiling installation if this limit is exceeded.

4-way cassette

Ceiling

0000: Standard

Built-in filter 2-way cassette

0000: Standard filter (factory default) 0001: Super long-life filter 4-way cassette 0000: Standard filter (factory default) Ceiling 0000: Standard filter (factory default) Concealed duct standard 0000: Standard filter (factory default) 0001: High-performance filter (65%, 90%)

Static pressure selection Concealed duct standard

0000: Standard (factory default) 0001: High static pressure 1 0003: High static pressure 2 0006: Low static pressure

Slim Duct 0000: Standard (factory default) 0001: High static pressure 1 0003: High static pressure 2 0006: High static pressure 3

Timer setting (wired remote controller)

0000: Available (can be performed) 0001: Unavailable (cannot be

performed)

0000: Available

tnempihs tAnoitpircseDmetIND

Value Type AP015, AP018 AP024

0000 Standard (factory default) 3.5 m or less 3.8 m or less

0001 High-ceiling (1) 4.0 m or less 4.0 m or less

0003 High-ceiling (3) 4.2 m or less 4.2 m or less

Value Type AP007~AP030 AP036~AP056

0000 Standard (factory default) 2.7 m or less 2.7 m or less 0001 High-ceiling (1) 3.2 m or less (*) 3.0 m or less

0003 High-ceiling (3) 3.8 m or less (*) 3.5 m or less

Value

Type AP009~AP012 AP015~AP018

Air flow at outlet

4 directions 3 directions 2 directions 4 directions 3 directions 2 directions

0000

Standard

(factory default)

2.7 m 2.8 m 3.0 m 2.8 m 3.2 m 3.5 m

0001 High-ceiling (1) – – – 3.2 m 3.5 m 3.8 m 0003 High-ceiling (3) – – – 3.5 m 3.8 m –

Value

Type AP024~AP030 AP036~AP056

Air flow at outlet

4 directions 3 directions 2 directions 4 directions 3 directions 2 directions

0000

Standard

(factory default)

3.0 m 3.3 m 3.6 m 3.0 m 3.3 m 3.6 m

0001 High-ceiling (1) 3.3 m 3.5 m 3.8 m 3.3 m 3.5 m 3.8 m

0003 High-ceiling (3) 3.6 m 3.8 m – 3.6 m 3.8 m –

650PA~510PAepyTeulaV

0000 Standard (factory default) 3.5 m or less

ssel ro m 0.4)1( gniliec-hgiH1000

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