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(4)Display of Outdoor Cycle Data (Displayed at Header Unit) * This method is used when displaying follower unit information on the 7-segment display of the header unit. SW01 SW02 SW03 Display detail 3 1 2 3 4 5 6 7 8 9 10 11 1~3 Error data A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B Check code is displayed (latest one only). If there is no check code: [– – –]. Type of compressor installed A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B Outdoor unit HP capacity A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B 8HP: [… 8], 10HP: [… 10], 12HP: [… 12], 14HP: [14], 16HP: [16] Compressor operation command A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B Indicates which compressor is ON. Any unconnected compressors is represented by “–”. B When compressor No. 1 is ON 1 0 0 When compressor No. 2 is ON 0 1 0 When compressor No. 3 is ON 0 0 1 Fan operation mode A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B At rest: [F … 0], In mode 63: [F 6 3] Release signal A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B Normal: [r … …], Upon receiving release signal: [r … 1] Oil level judgment A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B Normal: [… … …], Low level: [… … L] Compressor 1 operating current A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B [.], . is value of operating current in decimal format. Compressor 2 operating current A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B [.], . is value of operating current in decimal format. Compressor 3 operating current A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B [.], . is value of operating current in decimal format. Fan operating current A [U.], : SW03 setting No. + 1 (Outdoor unit No. U2 to U4) B [.], . is value of operating current in decimal format. Note: Follower unit is selected by setting SW03. SW03 7-segment display section A 1 U2 2 U3 3 U4 229
(5)Display of Indoor Unit Information (Displayed on Header Unit Only) SW01 SW02 SW03 Display detail Indoor BUS communication signal B Upon receiving signal: [… … 1], Other times: [… … …] 4 receiving status 5 Indoor check code B No check code: [– – –] 6 7 1~16 1~4 Indoor HP capacity B 0. 2, 0. 5, 0. 8, … 1, 1. 2, 1. 7, … 2, 2. 5, …3, 3. 2, …4, …5, …6, …8, 1 0, 1 6, 2 0 Indoor request command (S code, operation mode) B [ #. … ] # represents mode: COOL: [C. … ], HEAT: [H. … ] FAN: [F. … ], OFF: [S. … ] represents S code: [#. … 0] to [#. … F] 8 Indoor PMV opening data B Displayed in decimal format 9 Indoor TA sensor data B Displayed in decimal format 11 Indoor TCJ sensor data B Displayed in decimal format 12 1~4 Indoor TC1 sensor data B Displayed in decimal format 13 Indoor TC2 sensor data B Displayed in decimal format Note: Indoor address No. is selected by setting SW02 and SW03 and displayed on 7-segment display, section A. SW03 SW02 Indoor address 7-segment display section A 1 1~16 SW02 setting number [01]~[16] 2 1~16 SW02 setting number +16 [17]~[32] 3 1~16 SW02 setting number +32 [33]~[48] 4 1~16 SW02 setting number +48 [49]~[64] * Although 64 indoor unit addresses (Nos. 01-64) are theoretically available, the number of indoor units that can be connected to the same refrigerant piping system is limited to 48. (6)Display of Outdoor EEPROM Writing Error Code (Displayed on Header Unit Only) * The latest error code written in the EEPROM of each outdoor unit is displayed. (This function is used to check the error code after the resetting of the power supply.) To display the error code, press SW04 and hold for at least 5 seconds after setting SW01 to 03 as shown in the table below. SW01 SW02 SW03 Indoor address 7-segment display section A 1 1 Latest error code of header unit (U1) E. 1. 2 Latest error code of follower unit No. 1 (U2) E. 2. 16 3 Latest error code of follower unit No. 2 (U3) E. 3. 4 Latest error code of follower unit No. 3 (U4) E. 4. • 7-Segment Display Section A D600 D601 Section B D602 D603 D604 Set SW01/SW02/SW03 to [1/1/16] and press SW04 and hold for at least 5 seconds. The latest error code of the header unit (U1) will be displayed. If the setting of SW02 is changed, the latest error code of a follow unit (U2-U4) will be displayed. 230
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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
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Explanation of Functional Parts Fun
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4 Combined Refrigerant Piping Syste
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4-3. Normal Operation (HEAT Mode) H
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4-5. Emergency Operation (Heating O
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5 Control Outline Indoor Unit Cont
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NO. Item Specification outline Rema
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NO. Item Specification outline Rema
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Outdoor Unit Item Description of op
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Item Description of operation, nume
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1 Cooling operation under low outsi
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Central control remote controller (
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6-1-2. When Wireless Remote Control
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Central control remote controller (
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X Y DC5V Power supply circuit Main
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6-2. Indoor Printed Circuit Board M
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MCC-1403 Power supply Power supply
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6-4. Test Operation of Indoor Unit
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Function CODE No. (DN Code) Table (
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Type DN code “10” Value Type Mo
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▼ Ventilating fan control from re
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6-7. Applied control for Outdoor Un
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(2) Indoor unit setup method for pr
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6-8-1. Power peak-cut Control (Stan
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6-8-3. Snowfall Fan Control Header
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6-8-6. Operation Mode Selection Con
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6-8-8. Compressor Operation Output
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7 TEST OPERATION 7-1. Procedure and
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(2) In the case that a central cont
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• Check the additional amount of
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7-4. Address Setup This product req
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(Example) Controlling 2 or more ref
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10 Set the central control address.
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Manual address setup from the remot
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To find an indoor unit’s position
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4 Push the TIME / buttons repeatedl
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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
Page 179 and 180: 8-4. Check Codes Displayed on Remot
Page 181 and 182: Main remote controller Check code O
Page 189 and 190: Main remote controller P04 P05 P07
Page 193 and 194: Errors Detected by TCC-LINK Central
Page 195 and 196: 8-5. Diagnosis procedure for each c
Page 197 and 198: Check code Check code name Cause Ch
Page 199 and 200: Check code Check code name Cause [E
Page 201 and 202: Check code Check code name Cause [E
Page 203 and 204: Check code Check code name Cause [F
Page 205 and 206: Check code Check code name Cause [H
Page 209 and 210: (*3) Check for solenoid valve of al
Page 215 and 216: Check code Check code name Cause [L
Page 217 and 218: Check code Check code name Cause [P
Page 223 and 224: (C) Heating operation Does heating
Page 227 and 228: (1)Display of System Information (D
Page 229: (3)Display of Outdoor Cycle Data (D
Page 233 and 234: 8-8. Leakage/Clogging of Refrigerat
Page 235 and 236: List of Check Codes Generated upon
Page 237 and 238: 8-9. Sensor Characteristics Outdoor
Page 239 and 240: Indoor TC1 sensor 200 150 Resistanc
Page 241 and 242: 240 Outdoor Unit ▼ Ps sensor char
Page 243 and 244: 9-2. Compressor Backup Operation Se
Page 245 and 246: (6) Turn on the power supply to all
Page 247 and 248: (8) Set Bits 1 and 2 of SW30 on the
Page 249 and 250: 10OUTDOOR UNIT REFRIGERANT RECOVERY
Page 251 and 252: [Setup of failed outdoor unit] (13)
Page 253 and 254: [Setup of outdoor units other than
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Page 257 and 258: 11-2.Replacement of Compressors
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Page 261 and 262: 11-3.Check Procedure to Search Caus
Page 263 and 264: Check items and procedures to follo
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Page 277 and 278: 13P.C. BOARD EXCHANGE PROCEDURES I
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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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