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6-8-5. Night operation (sound reduction) Control Header outdoor unit Outdoor unit interface PCB CN508 Connection cable Optional PCB TB1 COM PJ17 COOL HEAT Locally procured Shield wire SW1 SW1: Night time signal switch Operation This function decreases noise at night or other times as necessary. Terminal Input signal Operation ON Night time control COOL (SW1) OFF ON OFF Normal operation The input signal is recognized during its rising/falling phase. (After reaching the top/bottom of the rising/falling edge, the signal must remain there for at least 100 ms.) The optional P.C. board should be connected to the header outdoor unit (U1). The system's capacity is reduced during low-noise operation. The table below provides a rough guide to this capacity reduction. Outdoor unit (base unit) During low-noise mode* dB(A) Capacity Cooling Heating Model 0804 50 approx. 85% approx. 80% Model 1004 50 approx. 70% approx. 65% Model 1204 50 approx. 60% approx. 55% Model 1404 53 approx. 80% approx. 80% Model 1604 53 approx. 70% approx. 70% Relative to maximum capacity * Position of noise measuring device: 1 m from the front face of the set and 1.5 m above ground (anechoic sound) 113
6-8-6. Operation Mode Selection Control Header outdoor unit Outdoor unit interface PCB CN510 Connection cable SW1: Cooling mode specified input switch SW2: Heating mode specified input switch Optional PCB PJ17 COM COOL HEAT TB1 Locally procured Shield wire SW1 SW2 NOTE SW1: COOL mode selection switch SW2: HEAT mode selection switch COOL (SW1) ON Input signal HEAT (SW2) OFF Operation Only cooling operation allowed OFF ON Only heating operation allowed OFF OFF Normal operation Remarks * * * The display “ (Operation mode selection control in progress)” appears on the remote controller Indoor unit operation intervention function [only supported by SMMS-i (4 series)] The statuses of indoor units operating in a mode different from the selected operation mode can be changed by changing the status of a jumper wire (J01) provided on the interface P.C. board of the header outdoor unit. Jumper wire J01 connected (factory default) J01 cut Description of intervention All indoor units operating in a mode different from the selected operation mode (prohibited-mode indoor units) become non-priority units (thermostat OFF). Prohibited-mode indoor units Operation mode Operation status Remote controller display COOL Fan operation at air flow rate set via remote controller “ ” operation ready HEAT Fan operation at extremely low air flow rate FAN Fan operation at air flow rate set via remote controller as normal The selected operation mode is imposed on all indoor units operating in a different mode. Mode selected at P.C. board Remote controller operation / display Normal All modes (COOL, DRY, HEAT and FAN) available COOL Only COOL, DRY and FAN available “ operation mode control” HEAT Only HEAT and FAN available (turned on during remote controller operation) The optional P.C. board should be connected to the header outdoor unit (U1). 114
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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
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1-2-9. Slim Duct Type Models: MMD-A
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1-2-11.High Wall Type 2 series Mode
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1-2-13.Floor Standing Cabinet Type
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1-2-15.Floor Standing Type Models:
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Models: MMD-AP0721HFE and MMD-AP096
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2-2. Outdoor Unit (60Hz model: MMY-
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2-4. Outdoor Inverter (60Hz model:
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2-way Air Discharge Cassette Type M
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Concealed Duct High Static Pressure
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Floor Standing Type Model MMF-AP 01
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14, 16HP Model: MMY-MAP1404* , MAP1
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Outdoor Unit (14, 16HP) Model: MMY-
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2-8-2. Inverter P.C. board for comp
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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 and 86: 1 Cooling operation under low outsi
Page 87 and 88: Central control remote controller (
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: 6-8-3. Snowfall Fan Control Header
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
Page 135 and 136: 4 Push the TIME / buttons repeatedl
Page 137 and 138: 2) Turn on dip switch 2 of SW30 on
Page 139 and 140: 7-4-4. Check after Address Setup wh
Page 141 and 142: 7-5-2. Operation from the indoor re
Page 143 and 144: Miswiring example Figure Remote con
Page 145 and 146: 7-6-2. Cooling/Heating Test Operati
Page 147 and 148: (2) Test operation START Test opera
Page 149 and 150: 7-7. Service Support Function 7-7-1
Page 151 and 152: 7-7-2. Function to Start/Stop (ON/O
Page 153 and 154: (2) Heating test operation function
Page 155 and 156: (4) Individual start/stop (ON/OFF)
Page 157 and 158: (2)Clearing error by using switches
Page 159 and 160: 7-7-5. Pulse Motor Valve (PMV) Forc
Page 161 and 162: 7-7-8. Fan Operation Check in Outdo
Page 163 and 164: 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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