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6 Applied Control and Functions (including Circuit Configuration) 6-1. Indoor Controller Block Diagram 6-1-1. When Main (Sub) Remote Controller Connected (MMU-AP 2H) Central control remote controller (optional) X Y Indoor unit #1 Network adaptor (optional) Network adaptor P.C. board (MCC-1401) Remote controller communication circuit AI-NET communication circuit DC5V Power supply circuit MCU Switch setting Transformer PMV ×4 Main (sub) center remote controller (up to 2 units) Schedule timer (when in weekly timer mode) Display LCD Display LED EEPROM MCU Function setting Key switch Display LCD LCD driver MCU Function setting Key switch Remote controller communication circuit DC5V Power supply circuit CN2 *3 CN1 Power supply circuit DC5V Rechargeable battery Indoor control P.C. board (MCC-1570) DC20V DC12V DC5V A B #2 A B #3 A B Remote controller communication circuit MCU EEPROM Driver (In case of AI-NETWORK) Louver motor Drain pump Indoor fan motor TA sensor TCI sensor TC2 sensor TCJ sensor Sameas left *2 Sameas left *2 Up to 8 units can be connected. *1 *1 Only up to 7 units if a network adaptor is installed with 2 main (sub) remote controllers connected. *2 The network adaptor can only be installed in one unit. DC 280V Power supply circuit MCU Fan motor control circuit External output In operation Alarm Getting ready Thermostat ON COOL HEAT FAN AC synchronization signal input circuit BUS communication circuit Float input HA R S U1 U2 R S U1 U2 *3 A weekly timer cannot be connected to a sub remote controller. L N Power source 1Ø 220-240V, 50Hz 1Ø 220V, 60Hz U1 U2 Indoor/outdoor communication U1 U2 Outdoor unit Power source Outdoor unit Power source Outdoor unit 85
Central control remote controller (optional) (In case of AI-NETWORK) X Y Main (sub) center remote controller (up to 2 units) Weekly timer Display LCD Display LED EEPROM CPU Function setting Key switch Display LCD LCD driver CPU Function setting Key switch Remote controller communication circuit DC5V Power supply circuit CN2 CN1 *3 Power supply circuit DC5V Rechargeable battery Indoor unit #1 Network adaptor (optional) Network adaptor P.C. board (MCC-1401) AI-NET communication circuit DC5V Power supply circuit Transformer Remote controller communication circuit CPU H8/3687 Switch setting Indoor control P.C. board (MCC-1402) DC20V DC12V DC5V A B #2 A B #3 A B Remote controller communication circuit CPU H8/3039 EEPROM TA sensor TCI sensor TC2 sensor TCJ sensor Driver Sameas left *2 Sameas left *2 Up to 8 units can be connected. *1 *1 Only up to 7 units if a network adaptor is installed with 2 main (sub) remote controllers connected. *2 The network adaptor can only be installed in one unit. PMV Louver motor *Not applicable to concealed duct standard type Slim Duct Type Drain pump Indoor fan motor DC 280V Power supply circuit CPU TMP88CH 47FG (TMP88PH 47FG) Fan motor control circuit External output In operation Alarm Getting ready Thermostat ON COOL HEAT FAN AC synchronization signal input circuit BUS communication circuit Float input HA R S U1 U2 R S U1 U2 *3 A weekly timer cannot be connected to a sub remote controller. Power source 1Ø 220-240V, 50Hz 1Ø 220V, 60Hz L N U1 U2 Indoor/outdoor communication U1 U2 Outdoor unit Power source Outdoor unit Power source Outdoor unit 86
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AIR CONDITIONER (MULTI TYPE) SERVIC
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4-1. Normal Operation (COOL Mode /
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9-4. Cooling-Season Outdoor Unit Ba
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Definition of Protective Gear When
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Precautions for Safety The manufact
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Use specified parts. When any of th
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Only a qualified installer (*1) or
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Specifications Model MMY-MAP0804HT8
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Carrying in the Outdoor Unit CAUTIO
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Selection of Pipe Size Coupling siz
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Table 2 Standard type High Efficien
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4. Tools (1) Required Tools for R41
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Models: MMY-MAP1404* and MAP1604 *
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1-2-2. Compact 4-way Cassette Type
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1-2-4. 1-way Air Discharge Cassette
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1-2-6. 2-way Air Discharge Cassette
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1-2-8. Concealed Duct High Static P
Page 35 and 36: 1-2-9. Slim Duct Type Models: MMD-A
Page 37 and 38: 1-2-11.High Wall Type 2 series Mode
Page 39 and 40: 1-2-13.Floor Standing Cabinet Type
Page 41 and 42: 1-2-15.Floor Standing Type Models:
Page 43 and 44: Models: MMD-AP0721HFE and MMD-AP096
Page 45 and 46: 2-2. Outdoor Unit (60Hz model: MMY-
Page 47 and 48: 2-4. Outdoor Inverter (60Hz model:
Page 49 and 50: 2-way Air Discharge Cassette Type M
Page 51 and 52: Concealed Duct High Static Pressure
Page 53 and 54: Floor Standing Type Model MMF-AP 01
Page 55 and 56: 14, 16HP Model: MMY-MAP1404* , MAP1
Page 57 and 58: Outdoor Unit (14, 16HP) Model: MMY-
Page 59 and 60: 2-8-2. Inverter P.C. board for comp
Page 61 and 62: 3 Refrigerant Piping Systematic Dra
Page 63 and 64: Explanation of Functional Parts Fun
Page 65 and 66: 4 Combined Refrigerant Piping Syste
Page 67 and 68: 4-3. Normal Operation (HEAT Mode) H
Page 69 and 70: 4-5. Emergency Operation (Heating O
Page 71 and 72: 5 Control Outline Indoor Unit Cont
Page 73 and 74: NO. Item Specification outline Rema
Page 75 and 76: NO. Item Specification outline Rema
Page 77 and 78: Outdoor Unit Item Description of op
Page 79 and 80: Item Description of operation, nume
Page 85: 1 Cooling operation under low outsi
Page 89 and 90: 6-1-2. When Wireless Remote Control
Page 91 and 92: Central control remote controller (
Page 93 and 94: X Y DC5V Power supply circuit Main
Page 95 and 96: 6-2. Indoor Printed Circuit Board M
Page 97 and 98: MCC-1403 Power supply Power supply
Page 99 and 100: 6-4. Test Operation of Indoor Unit
Page 101 and 102: Function CODE No. (DN Code) Table (
Page 103 and 104: Type DN code “10” Value Type Mo
Page 105 and 106: ▼ Ventilating fan control from re
Page 107 and 108: 6-7. Applied control for Outdoor Un
Page 109 and 110: (2) Indoor unit setup method for pr
Page 111 and 112: 6-8-1. Power peak-cut Control (Stan
Page 113 and 114: 6-8-3. Snowfall Fan Control Header
Page 115 and 116: 6-8-6. Operation Mode Selection Con
Page 117 and 118: 6-8-8. Compressor Operation Output
Page 119 and 120: 7 TEST OPERATION 7-1. Procedure and
Page 121 and 122: (2) In the case that a central cont
Page 123 and 124: • Check the additional amount of
Page 125 and 126: 7-4. Address Setup This product req
Page 127 and 128: (Example) Controlling 2 or more ref
Page 129 and 130: 10 Set the central control address.
Page 131 and 132: Manual address setup from the remot
Page 133 and 134: To find an indoor unit’s position
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2) Turn on dip switch 2 of SW30 on
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7-4-4. Check after Address Setup wh
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7-5-2. Operation from the indoor re
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Miswiring example Figure Remote con
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7-6-2. Cooling/Heating Test Operati
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(2) Test operation START Test opera
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7-7. Service Support Function 7-7-1
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7-7-2. Function to Start/Stop (ON/O
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(2) Heating test operation function
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(4) Individual start/stop (ON/OFF)
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(2)Clearing error by using switches
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7-7-5. Pulse Motor Valve (PMV) Forc
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7-7-8. Fan Operation Check in Outdo
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7-7-10.Manual Adjustment Function o
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7-7-11.Monitor Function of Remote C
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8 TROUBLESHOOTING 8-1. Overview (1)
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(Error detected by main remote cont
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F12 - F12 ALT F15 - F15 ALT F16 - F
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(Errors detected by IPDU featuring
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Using TCC-LINK central control remo
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Light block Check code Cause of fau
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8-4. Check Codes Displayed on Remot
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Main remote controller Check code O
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Main remote controller P04 P05 P07
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Errors Detected by TCC-LINK Central
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8-5. Diagnosis procedure for each c
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Check code Check code name Cause Ch
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Check code Check code name Cause [E
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Check code Check code name Cause [E
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Check code Check code name Cause [F
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Check code Check code name Cause [H
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(*3) Check for solenoid valve of al
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Check code Check code name Cause [L
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Check code Check code name Cause [P
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(C) Heating operation Does heating
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(1)Display of System Information (D
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(3)Display of Outdoor Cycle Data (D
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(5)Display of Indoor Unit Informati
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8-8. Leakage/Clogging of Refrigerat
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List of Check Codes Generated upon
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8-9. Sensor Characteristics Outdoor
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Indoor TC1 sensor 200 150 Resistanc
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240 Outdoor Unit ▼ Ps sensor char
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9-2. Compressor Backup Operation Se
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(6) Turn on the power supply to all
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(8) Set Bits 1 and 2 of SW30 on the
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10OUTDOOR UNIT REFRIGERANT RECOVERY
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[Setup of failed outdoor unit] (13)
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[Setup of outdoor units other than
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10-3.Work procedure after Repair Wh
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11-2.Replacement of Compressors
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[When replacing normal as well as f
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11-3.Check Procedure to Search Caus
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Check items and procedures to follo
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No. Part to be replaced Work proced
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13P.C. BOARD EXCHANGE PROCEDURES I
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Procedure 1: Reading Setting Data f
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Procedure 3: Writing Setting Data i
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CODE No. list (Example) CODE No. (D
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13-2-3.Interface board (MCC-1606) r
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(6) Set the dip switch (SW800) sett
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13-2-6.Noise Filter P.C. Board (MCC
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(7) Install the service P.C. boards
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SMMS-i OUTDOOR UNIT MMY-MAP1404HT8(
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REFRIGERATION CIRCUIT DIAGRAM M MOT
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Ref. No. Part No. Description MAP08
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SMMS-i INV SERVICE PARTS LIST MMY-M
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SMMS-i OUTDOOR UNIT MMY-MAP0804T8(Z
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SMMS-i OUTDOOR UNIT MMY-MAP0804T8(Z
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SMMS-i OUTDOOR UNIT MMY-MAP1404T8-S
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WARNINGS ON REFRIGERANT LEAKAGE Che
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