Page 1: Service Manual
FILE NO. A12-006 SERVICE MANUAL AIR-CONDITIONER MULTI TYPE < SUPER HEAT RECOVERY MULTI -i > Outdoor Unit Model name: MMY-MAP0804FT8(Z)(ZG)-E MMY-MAP0804FT8(Z)(ZG)-TR MMY-MAP1004FT8(Z)(ZG)-E MMY-MAP1004FT8(Z)(ZG)-TR MMY-MAP1204FT8(Z)(ZG)-E MMY-MAP1204FT8(Z)(ZG)-TR MMY-MAP1404FT8(Z)(ZG)-E MMY-MAP1404FT8(Z)(ZG)-TR MMY-MAP0804FT8(Z)(ZG) MMY-MAP0804FT7(Z)(ZG) MMY-MAP1004FT8(Z)(ZG) MMY-MAP1004FT7(Z)(ZG) MMY-MAP1204FT8(Z)(ZG) MMY-MAP1204FT7(Z)(ZG) MMY-MAP1404FT8(Z)(ZG) MMY-MAP1404FT7(Z)(ZG) This service manual provides relevant explanations about new outdoor unit (SHRM-i). Please refer to the following service manuals for each indoor units.
Page 2: Table Of Contents
CONTENTS ORIGINAL INSTRUCTION ................... 5 NEW REFRIGERANT (R410A) .................. 21 1. WIRING DIAGRAMS ....................23 1-1. Outdoor Unit ........................23 1-2. Indoor Unit .......................... 25 1-2-1. 4-way Cassette Type ......................25 1-2-2. Compact 4-way Cassette Type ................... 26 1-2-3. 1-way Cassette Type (Compact type) ................. 27 1-2-4.
Page 3 5. CONTROL OUTLINE ....................73 5-1. Indoor Unit .......................... 73 5-2. Outdoor Unit ........................79 6. APPLIED CONTROL AND FUNCTIONS (INCLUDING CIRCUIT CONFIGURATION) ... 87 6-1. Indoor Controller Block Diagram ..................87 6-1-1. When Main (Sub) Remote Controller Connected ............. 87 6-1-2.
Page 4 7-7-3. Remote Controller Distinction Function................160 7-7-4. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit ......161 7-7-5. Pulse Motor Valve (PMV) Forced Open Fully/Close fully Function in Outdoor Unit ..161 7-7-6. Solenoid Valve Forced Open/Close Function in Outdoor Unit ........162 7-7-7.
Page 5: Original Instruction
• 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...
Page 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.
Page 7: Warning Indications On The Air Conditioner Unit
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. Warning indication Description WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD...
Page 8: Precautions For Safety
PRECAUTIONS FOR SAFETY The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER 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.
Page 9 WARNIG 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.
Page 10 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 no- Do not bring one will approach the work location before proceeding with the work.
Page 11 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.
Page 12 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.
Page 13: Declaration Of Conformity
Manufacturer: Toshiba Carrier Corporation 336 Tadehara, Fuji-shi, Shizuoka-ken 416-8521 JAPAN Authorized Representative / Nick Ball TCF holder: Toshiba EMEA Engineering Director Toshiba Carrier UK Ltd. Porsham Close, Belliver Industrial Estate, PLYMOUTH, Devon, PL6 7DB. United Kingdom Hereby declares that the machinery described below:...
Page 14: Specifications
Specifications Sound power level (dBA) Weight (kg) Model Main unit (Ceiling panel) Cooling Heating MMY-MAP0804FT8(Z)(ZG)-E MMY-MAP1004FT8(Z)(ZG)-E MMY-MAP1204FT8(Z)(ZG)-E MMY-MAP1404FT8(Z)(ZG)-E MMY-MAP0804FT8(Z)(ZG)-TR MMY-MAP1004FT8(Z)(ZG)-TR MMY-MAP1204FT8(Z)(ZG)-TR MMY-MAP1404FT8(Z)(ZG)-TR MMY-MAP0804FT8(Z)(ZG) MMY-MAP1004FT8(Z)(ZG) MMY-MAP1204FT8(Z)(ZG) MMY-MAP1404FT8(Z)(ZG) MMY-MAP0804FT7(Z)(ZG) MMY-MAP1004FT7(Z)(ZG) MMY-MAP1204FT7(Z)(ZG) MMY-MAP1404FT7(Z)(ZG) – 14 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 15 Connectable indoor units Model type Model Name ∗∗∗∗ ∗ 4-way cassette MMU-AP ∗∗∗∗ ∗ Compact 4-way cassette MMU-AP ∗∗∗∗ ∗ 2-way cassette MMU-AP ∗∗∗∗ ∗ MMU-AP 1-way cassette ∗∗∗∗ ∗ MMU-AP ∗∗∗∗ ∗ Concealed duct, standard type MMD-AP ∗∗∗∗ ∗ Concealed duct, high static pressure MMD-AP ∗∗∗∗...
Page 16: Carrying In The Outdoor Unit
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. •...
Page 17 Weight centre and weight Weight centre of an outdoor unit X (mm) Y (mm) Z (mm) Weight (kg) Model type MAP080 MAP100 MAP120 MAP140 – 17 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 18 Selection of Pipe Size Coupling size of brazed pipe Connected section External size Internal size (Unit: mm) Connected section External size Internal size Standard outer dia. Min. depth of Min. thickness of connected Standard outer dia. insertion of coupling Oval value copper pipe (Allowable difference) +0.04...
Page 19: Adding Refrigerant
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.
Page 20 Selection of installation place • EThe cooling performance may decline considerably when total operating capacity of cooling indoor units is less than 4 HP while ambient temperature is below 0°C. • EWhen system capacity is greater than 28 HP, height difference between indoor units is limited to 3 m. If the piping exceeds 3 m with a capacity greater than 28 HP there may be a case of capacity shortage in cooling.
Page 21: New Refrigerant (R410A)
New Refrigerant (R410A) 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.
Page 22 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.
Page 23: Wiring Diagrams
1. WIRING DIAGRAMS 1-1. Outdoor Unit ∗ ∗ Models: MMY-MAP0804 , MAP1004 – 23 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 24 ∗ ∗ Models: MMY-MAP1204 , MAP1404 – 24 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 25: Indoor Unit
1-2. Indoor Unit 1-2-1. 4-way Cassette Type Models: MMU-AP0092H, AP0122H, AP0152H, AP0182H, AP0242H, AP0272H, AP0302H, AP0362H, AP0482H, and AP0562H – 25 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 26: Compact 4-Way Cassette Type
1-2-2. Compact 4-way Cassette Type ∗ ∗ ∗ ∗ ∗ Models: MMU-AP0074MH , AP0094MH , AP0124MH , AP0154MH , and AP0184MH – 26 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 27: 1-Way Cassette Type (Compact Type)
1-2-3. 1-way Air Discharge Cassette Type (Compact type) ∗ ∗ ∗ Models: MMU-AP0074YH , AP0094YH , and AP0124YH – 27 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 28: 1-Way Cassette Type Sh Series
1-2-4. 1-way Cassette Type SH series ∗ ∗ ∗ Models: MMU-AP0154SH , AP0184SH , and AP0244SH – 28 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 29: 2-Way Air Discharge Cassette Type
1-2-5. 2-way Cassette Type Models: MMU-AP0072WH, AP0092WH, AP0122WH, AP0152WH, AP0182WH, AP0242WH, AP0272WH, AP0302WH, AP0482WH – 29 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 30: Concealed Duct Standard Type
1-2-6. Concealed Duct Standard Type ∗ ∗ ∗ ∗ ∗ ∗ Models: MMD-AP0074BH , AP0094BH , AP0124BH , AP0154BH , AP0184BH , AP0244BH ∗ ∗ ∗ ∗ ∗ AP0274BH , AP0304BH , AP0364BH , AP0484BH , and AP0564BH – 30 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 31: Concealed Duct Standard Type 6 Series
1-2-7. Concealed Duct Standard Type 6seres ∗ ∗ ∗ ∗ ∗ ∗ Models : MMD-AP0076BH , AP0096BH , AP0126BH , AP0156BH , AP0186BH , AP0246BH ∗ ∗ ∗ ∗ ∗ AP0276BH , AP0306BH , AP0366BH , AP0486BH , AP0566BH – 31 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 32: Concealed Duct High Static Pressure Type
1-2-8. Concealed Duct High Static Pressure Type ∗ ∗ ∗ ∗ ∗ Models: MMD-AP0184H , AP0244H , AP0274H , AP0364H , and AP0484H – 32 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 33 ∗ ∗ Models: MMD-AP0724H and AP0964H – 33 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 34: Slim Duct Type
1-2-9. Slim Duct Type ∗ ∗ ∗ ∗ ∗ Models: MMD-AP0074SPH , AP0094SPH , AP0124SPH , AP0154SPH , and AP0184SPH – 34 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 35: Slim Duct Type
1-2-10. Slim duct type ∗ ∗ Models: MMD-AP0244SPH , MMD-AP0274SPH – 35 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 36: Ceiling Type
1-2-11. Ceiling Type ∗ ∗ ∗ ∗ ∗ ∗ Models: MMC-AP0154H , AP0184H , AP0244H , AP0274H , AP0364H , and AP0484H – 36 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 37: High Wall Type 4Mh Series
1-2-12. High Wall Type 4MH series ∗ ∗ ∗ Models: MMK-AP0074MH , AP0094MH , and AP0124MH – 37 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 38: High Wall Type 3 Series
1-2-13. High Wall Type 3 series Models: MMK-AP0073H, AP0093H, AP0123H, AP0153H, AP0183H, AP0243H – 38 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 39: Floor Standing Cabinet Type
1-2-14. Floor Standing Cabinet Type ∗ ∗ ∗ ∗ ∗ ∗ Models: MML-AP0074H , AP0094H , AP0124H , AP0154H , AP0184H , and AP0244H – 39 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 40: Floor Standing Concealed Type
1-2-15. Floor Standing Concealed Type ∗ ∗ ∗ ∗ ∗ ∗ Models: MML-AP0074BH , AP0094BH , AP0124BH , AP0154BH , AP0184BH , and AP0244BH – 40 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 41: Floor Standing Type
1-2-16. Floor Standing Type ∗ ∗ ∗ ∗ ∗ ∗ ∗ Models: MMF-AP0154H , AP0184H , AP0244H , AP0274H , AP0364H , AP0484H , and AP0564H – 41 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 42: Air To Air Heat Exchanger With Dx Coil Unit
1-2-17. Air to Air Heat Exchanger with DX Coil Unit ∗ ∗ ∗ ∗ MMD-VNK502HEXE , MMD-VNK802HEXE , MMD-VNK1002HEXE , MMD-VNK1002HEXE2 – 42 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 43 Code Parts name Code Parts name Code Parts name CN** Connector TFA sensor DMV1 Decompression magnetic valve Fuse (printed circuit board) TCJ, TC1, TC2 Indoor coil sensor Pulse modulating valve Fuse (motor) Terminal block (power source) SW701 Dip switch Air supplying motor Terminal block (communication) 43F11, 43F12 Relay for air supplying motor Air exhausting motor...
Page 44 ∗ ∗ ∗ MMD-VN502HEXE , MMD-VN802HEXE , MMD-VN1002HEXE , MMD-VN1002HEXE2 – 44 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 45 Code Parts name Code Parts name Code Parts name CN** Connector TSA sensor SW701 Dip switch Fuse (printed circuit board) TFA sensor 43F11, 43F12 Relay for air supplying motor Fuse (motor) TCJ, TC1, TC2 Indoor coil sensor 43F21, 43F22 Relay for air exhausting motor Air supplying motor Terminal block (power source) RY701, RY702 Relay for air supplying motor...
Page 46: Flow Selector Unit
1-3. Flow Selector Unit RBM-Y1123FE, RBM-Y1803FE – 46 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 47 RBM-Y2803FE – 47 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 48: Parts Rating
2. PARTS RATING 2-1. Outdoor Unit ∗∗∗ ∗∗∗ ∗∗∗ (50Hz model: MMY-MAP 4FT8-E,MAP 4FT8-TR, MAP 4FT8) MMY-MAP Parts Name Model Specification ∗ ∗ ∗ ∗ 0804FT8 1004FT8 1204FT8 1404FT8 1 Compressor DA421A3FB-29M Output: 2.3kW × 2 Output: 3.1kW × 2 Output: 2.6kW ×...
Page 49: Outdoor Unit (60Hz Model: Mmy-Map ∗∗∗ 4Ft7)
2-2. Outdoor Unit ∗∗∗ (60Hz model: MMY-MAP 4FT7) MMY-MAP Parts Name Model Specification ∗ ∗ ∗ ∗ 0804FT7 1004FT7 1204FT7 1404FT7 1 Compressor DA421A3FB-29M Output: 2.3kW × 2 Output: 3.1kW × 2 Output: 2.6kW × 3 Output: 3.1kW × 3 2 4-way valve coil STF-H01AQ1956A1 AC208 ~ 230V...
Page 50: Outdoor Inverter
2-3. Outdoor Inverter ∗∗∗ ∗∗∗ ∗∗∗ (50Hz model: MMY-MAP 4FT8-E, MAP 4FT8-TR, MAP 4FT8) MMY-MAP Parts Name Model Specification ∗ ∗ ∗ ∗ 0804FT8 1004FT8 1204FT8 1404FT8 1 Power supply terminal block JXO-6004 AC600V/75A,4P 2 Relay terminal block for reactor JXO-6B AC250V/20A,6P 3 Communication terminal block JXO-B2H AC30V (or no more...
Page 51: Outdoor Inverter (60Hz Model: Mmy-Map ∗∗∗ 4Ft7)
2-4. Outdoor Inverter ∗∗∗ (60Hz model: MMY-MAP 4FT7) MMY-MAP Parts Name Model Specification ∗ ∗ ∗ ∗ 0804FT7 1004FT7 1204FT7 1404FT7 1 Power supply terminal block JXO-6004 AC600V/75A,4P 2 Relay terminal block for reactor JXO-6B AC250V/20A,6P 3 Communication terminal block JXO-B2H AC30V (or no more than DC42V) / 1A, 6P 4 Reactor (For comp.)
Page 52: Parts Layout In Outdoor Unit
2-5. Parts Layout in Outdoor Unit 8, 10HP ∗ ∗ Model: MMY-MAP0804 , MAP1004 – 52 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 53 12, 14HP ∗ ∗ Model: MMY-MAP1204 , MAP1404 – 53 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 54: Parts Layout In Inverter Assembly
2-6. Parts Layout in Inverter Assembly Outdoor Unit (8, 10, HP) ∗ ∗ Model: MMY-MAP0804FT , MAP1004FT Inverter P.C. board for fan Interface P.C. board [Fan IPDU] [Outdoor control P.C. board] (MCC-1610) (MCC-1606) Noise Filter P.C. board (MCC-1608) Power supply terminal block Relay connector for...
Page 55 Outdoor Unit (12, 14HP) ∗ ∗ Model: MMY-MAP1204FT , MAP1404FT Inverter P.C. board for fan Interface P.C. board [Outdoor control P.C. board] [Fan IPDU] (MCC-1606) (MCC-1610) Noise Filter P.C. board (MCC-1608) Power supply terminal block Relay connector for central control Communication terminal block Magnet switch...
Page 56: Outdoor (Inverter) Print Circuit Board
2-7. Outdoor (Inverter) Print Circuit Board 2-7-1. Interface P.C. board (MCC-1606) Sensor input PMV4 output PMV2 output PMV1 output CN504 CN533 CN507 CN303 CN301 N300 CN503 CN532 CN535 CN521 CN506 Option input/output CN502 CN534 CN520 TS1 CN505 CN531 CN511 CN508 CN510 CN513 CN523 CN514...
Page 57: Inverter P.c. Board For Compressor (Mcc-1596) A3-Ipdu
2-7-2. Inverter P.C. board for compressor (MCC-1596) A3-IPDU – 57 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 58: Inverter P.c. Board For Fan (Mcc-1610)
2-7-3. Inverter P.C. board for fan (MCC-1610) CN602 CN702 UART CN504 communication between interfaces CN504 UART CN505 communication CN705 between Fan motor output U-phase A3-IPDU CN505 CN705 CN704 Fan motor output V-phase CN704 CN703 Fan motor output W-phase CN703 CN511 CN500 Reactor connecting terminal Power supply input...
Page 59: Refrigerant Piping Systematic Drawing
3. REFRIGERANT PIPING SYSTEMATIC DRAWING Outdoor Unit (8, 10HP) ∗ ∗ Model: MMY-MAP0804 , MMY-MAP1004 – 59 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 60 Outdoor Unit (12, 14HP) ∗ ∗ Model: MMY-MAP1204 , MMY-MAP1404 – 60 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 61 Explanation of Functional Parts Functional part name Functional outline (Connector CN321: White) SV3A 1) Supplies oil reserved in the oil header during ON time. (Connector CN321: White) SV3B 1) Returns oil supplied in the balance pipe to the compressor. (Connector CN321: White) SV3C 1) Pressurizes oil reserved in the oil header during ON time.
Page 62 Configuration of outdoor unit heat exchanger Propeller fan Propeller fan Fan motor Fan motor Main heat Main heat exchanger exchanger Wind Wind Wind Wind direction direction direction direction Auxiliary heat Auxiliary heat exchanger exchanger ∗ ∗ MMY-MAP0804FT MMY-MAP1204FT ∗ ∗ Y-MAP1004FT MMY-MAP1404FT Rear side...
Page 63: Operation Mode
Indoor Unit Liquid Gas side side Strainer Capillary tube Heat exchanger at indoor side Pulse Motor Valve (PMV) Sensor (TCJ) Sensor (TC2) Sensor (TC1) Sensor Fan motor (TA) CAUTION MMU-AP007YH, AP012YH type air conditioners have no TC2 sensor. Explanation of functional parts in indoor unit Functional part name Functional outline Pulse Motor Valve...
Page 64: System Refrigeerant Piping Schematic Diagrams
4. SYSTEM REFRIGEERANT PIPING SCHEMATIC DIAGRAMS <Exchange of operation mode> For exchange between each operation mode, follow the table below: When “Momentary stop” is executed, the unit does not operate for 3 minutes after stop of operation before update. After exchange Single cooling Collective cooling Collective heating...
Page 65: Single Cooling Mode (Operation Of Cooling Only) When Outside Temperature Is High
4-1. Single Cooling mode (Operation of cooling only) when outside temperature is high (Standard: 10°C or higher) / Defrost mode ∗ ∗ Outdoor header unit (MMY-MAP1404FT Outdoor follower unit (MMY-MAP1004FT Fan motor Fan motor Right side Right side Main Main heat exchanger heat exchanger Right side sub heat exchanger...
Page 66: Single Cooling Mode (Operation Of Cooling Only) When Outside Temperature Is Low
4-2. Single Cooling mode (Operation of cooling only) when outside temperature is low (Standard: 10°C or lower) ∗ ∗ Outdoor header unit (MMY-MAP1404FT Outdoor follower unit (MMY-MAP1004FT Fan motor Fan motor Right side Right side Main Main heat exchanger heat exchanger Right side sub heat exchanger Right side sub heat exchanger PMV2...
Page 67: Single Heating Mode (Operation Of Heating Only)
4-3. Single Heating mode (Operation of heating only) ∗ ∗ Outdoor header unit (MMY-MAP1404FT Outdoor follower unit (MMY-MAP1004FT Fan motor Fan motor Right side Right side Main Main heat exchanger heat exchanger Right side sub heat exchanger Right side sub heat exchanger PMV2 Left side PMV2...
Page 68: Collective Cooling Mode (Operating Cooling Function Mainly, Collective Operation Of Cooling And Heating Operation)
4-4. Collective cooling mode (Operating cooling function mainly, collective operation of cooling and heating operation) ∗ ∗ Outdoor header unit (MMY-MAP1404FT Outdoor follower unit (MMY-MAP1004FT Fan motor Fan motor Right side Right side Main Main heat exchanger heat exchanger Right side sub heat exchanger Right side sub heat exchanger PMV1 PMV2 PMV1 PMV2...
Page 69: Collective Heating Mode (Operating Heating Function Mainly, Collective Operation Of Cooling And Heating Operation)
4-5. Collective heating mode (Operating heating function mainly, collective operation of cooling and heating operation) ∗ ∗ Outdoor header unit (MMY-MAP1404FT ) Outdoor follower unit (MMY-MAP1004FT Fan motor Fan motor Right side Right side Main Main heat exchanger heat exchanger Right side sub heat exchanger Right side sub heat exchanger PMV1 PMV2...
Page 70: Emergency Operation (Single Cooling Operation At Backup Of The Center Unit)
4-6. Emergency operation (Single cooling operation at backup of the header unit) ∗ ∗ Outdoor header unit (MMY-MAP1404FT Outdoor follower unit (MMY-MAP1404FT Temporal set center unit in Trouble emergency operation When PMV leaked, service valve at liquid side = Close fully Fan motor Fan motor Right side...
Page 71: Emergency Operation (Single Heating Operation At Backup Of The Center Unit)
4-7. Emergency operation (Single heating operation at backup of the header unit) ∗ ∗ Outdoor header unit (MMY-MAP1404FT Outdoor follower unit (MMY-MAP1404FT Trouble Temporal set center unit in emergency operation When PMV leaked, service valve at liquid side = Close fully Fan motor Fan motor Right side...
Page 72: Refrigerant Recovery (During Pump-Down Operation) Of The Troubled Outdoor Unit)
4-8. Refrigerant recovery (during pump-down operation) of the troubled outdoor unit) (In case of trouble of follower unit) ∗ ∗ Outdoor header unit (MMY-MAP1404FT Outdoor follower unit (MMY-MAP1004FT Trouble Fan motor Fan motor Right side Right side Main Main heat exchanger heat exchanger Right side sub heat exchanger Right side sub heat exchanger...
Page 73: Control Outline
5. CONTROL OUTLINE 5-1. Indoor Unit Control Specifications Item Specification outline Remarks Upon power 1. Identification of outdoor unit supply reset When the power supply is reset, the outdoor unit is identified, and control is redirected according to the identification result. 2.
Page 74 Item Specification outline Remarks Automatic 1. The outdoor unit determines the operational capacities of indoor units according to Ts: Temperature capacity the difference between Ta and Ts. setting control Ta: Room Cooling Heating temperature (˚C) (˚C) Fan speed 1. The fan operates in one of the four speed modes of “HIGH (HH)”, “MED (H)”, “LOW HH >...
Page 75 Item Specification outline Remarks Cold air 1. In heating operation, the upper limit of the fan tap is set according to the lower of TCJ: Indoor heat discharge whichever is the higher between TC2 sensor and TCJ sensor temperatures, on the exchanger sensor prevention one hand, and TC1 sensor temperature, on the other.
Page 76 Item Specification outline Remarks Cooling oil While the outdoor unit is recovering cooling oil (refrigerant), the indoor units perform • Recovery operation (refrigerant) the following control tasks: normally takes recovery place roughly every [common for operational (cooling thermo ON / thermo OFF / FAN), as well as control 2 hours.
Page 77 Item Specification outline Remarks 14 Filter sign 1. The indoor fan’s cumulative hours of operation are counted, and when these “FILTER ” displayed display exceed the prescribed value (150H/2500H), a filter replacement signal is sent to (not applicable the remote controller to display a filter sign on it. to wireless type) 2.
Page 78 Item Specification outline Remarks 17 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 cooling/drying During heating/fan-only operation •...
Page 79: Outdoor Unit
5-2. Outdoor Unit Item Specification outline Remarks Pulse motor 1. PMV1, 2 control (PMV1 and 2) • During single valve (PMV) heating, collective 1) During air conditioner operation, the pulse count of a PMV (pulse motor valve) is control heating, PMV controlled between 90 and 1000.
Page 80 Item Specification outline Remarks Outdoor fan 1. Single cooling fan control 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.
Page 81 Item Specification outline Remarks Capacity 1) The compressors of the header and follower units are controlled on the basis of • Minimum rps of control capacity demand issued by indoor controllers. the compressor is 24 rps. 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.
Page 82 Item Specification outline Remarks Oil equation This control function is aimed at preventing compressors from running out of oil by • Oil accumulated control evening out the oil supply to outdoor units, and is basically performed by opening/ in the oil closing solenoid valves SV3A, SV3B, SV3C, SV3D, and SV3F.
Page 83 Item Specification outline Remarks Defrosting 1. Defrosting commencement conditions • Frost formation control temperature is - • During heating operation, the cumulative duration of operation in which TE1 (reverse 1.5 °C. sensor temperature falls below frost formation temperature is measured, and defrosting when this reaches 55 minutes, defrosting control is introduced.
Page 84 Item Specification outline Remarks Release valve 1. SV2 gas balance control 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.
Page 85 Item Specification outline Remarks High pressure This control function is aimed at automatically shutting down a compressor in an • When Pd ≥ P0 = release outdoor unit depending on Pd pressure. It is individually performed by the header unit 3.45 MPa, compressor and each follower unit.
Page 86 Item Specification outline Remarks 11 A3-IPDU IPDU controls inverter compressors by issuing commands relating to compressor control 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.
Page 87: Applied Control And Functions (Including Circuit Configuration)
6. APPLIED CONTROL AND FUNCTIONS (INCLUDING CIRCUIT CONFIGURATION) 6-1. Indoor Controller Block Diagram 6-1-1. When Main (Sub) Remote Controller Connected ∗∗∗ <4-way Cassette Type> (MMU-AP – 87 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 88 <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> – 88 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 89 <1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type> – 89 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 90: When Wireless Remote Controller Kit Connected
6-1-2. When Wireless Remote Controller Kit Connected ∗∗∗ <4-way Cassette Type> (MMU-AP – 90 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 91 <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> – 91 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 92 <1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type> – 92 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 93: When Both Main (Sub) Remote Controller And Wireless Remote Controller Kit
6-1-3. When Both Main (Sub) Remote Controller and Wireless Remote Controller Kit Connected ∗∗∗ <4-way Cassette Type> (MMU-AP – 93 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 94 <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> – 94 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 95 <1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type> – 95 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 96: Indoor Printed Circuit Board
6-2. Indoor Printed Circuit Board ∗∗∗ MCC-1570 <4-way Cassette Type> (MMU-AP – 96 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 97 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> – 97 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 98 MCC-1403 <1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type, Floor Standing Concealed Type, Floor Standing Cabinet Type> – 98 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 99: Optional Connector Specifications Of Indoor P.c. Board
6-3. Optional Connector Specifications of Indoor P.C. Board – 99 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 100: Test Operation Of Indoor Unit
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.
Page 101: Method To Set Indoor Unit Function Dn Code
6-5. Method to Set Indoor Unit Function DN Code ∗ When performing this task, be sure to use RBC-AMS51E or RBC-AMT32E. ∗ For operation of RBC-AMS51E , refer to the attached manual. <Procedure> To be performed only when system at rest Push the buttons simultaneously and hold for at TEST...
Page 102 Functio n CODE No. (DN Code) Table (Includes All Functions Needed to Perform Applied Control on Site) Item Description At shipment Filter display delay timer 0000: None 0001: 150H According to type 0002: 2500H 0003: 5000H 0004: 10000H Dirty state of filter 0000: Standard 0000: Standard 0001: High degree of dirt (Half of standard time)
Page 103 Item Description At shipment High-ceiling adjustment 1-way cassette (SH) 0000: Standard (Air flow selection) 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...
Page 104 Codes (DN codes) for changing settings (Necessary for local advanced control) Item Description At shipment 40 Humidifier type setting 0000: No humidifier 0001: Humidifier Depends on the type Ventilation fan speed during 0000: Always LOW 0001: Operate at ventilation fan 0000: Always LOW nighttime heat purge speed set last time the...
Page 105 Type DN code “10” Value Type Model ∗∗∗ 0000 1-way Cassette MMU-AP MMU-AP ∗∗∗ 0001* 4-way Cassette MMU-AP MMU-AP ∗∗∗ 0002 MMU-AP 2-way Cassette MMU-AP ∗∗∗ 0003 1-way Cassette (Compact) MMU-AP ∗∗∗ 0004 Concealed Duct Standard MMD-AP MMD-AP ∗∗∗ 0005 Slim Duct MMD-AP MMD-AP SPH (SH)
Page 106: Applied Control Of Indoor Unit
6-6. Applied Control of Indoor Unit 6-6-1. Control system using remote control interface (TCB-IFCB4E2) Wiring and setting • In the case of group control, the control system functions as long as it is connected to one of the indoor units (control P.C.
Page 107: Ventilating Fan Control From Remote Controller
6-6-2. Ventilating fan control from remote controller [Function] • The start/stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system. • The fan can be operated even if the indoor unit is not operating. •...
Page 108: Leaving-On Prevention Control
6-6-3. Leaving-ON prevention control [Function] • This function controls the indoor units individually. It is connected with cable to the control P.C. board of the indoor unit. • In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the CODE No. 2E is set to the connected indoor unit.
Page 109: Applied Control For Outdoor Unit
6-7. Applied control for Outdoor Unit The outdoor fan high static pressure support and priority operation mode setting (cooling / heating / number of units / or priority indoor unit) functions are made available by setting relevant switches provided on the interface P.C.
Page 110: Applied Control Of Outdoor Unit
6-8. Applied Control Using Optional Board for Outdoor Unit Optional control P.C. boards provide access to a range of functions as listed below. Outdoor unit Control P.C. board to be used Outdoor unit interface P.C. board setting* for control Function Jumper to be P.C.
Page 111: Power Peak-Cut Control (Standard)
6-8-1. Power peak-cut Control (Standard): TCB-PCDM4E L1: Display lamp suring power peak cut control Header outdoor unit Locally procured Optional PCB Power supply Display Outdoor unit relay interface PCB [OPERATION] Shield wire PJ17 CN513 SW07 [ON] [OFF] 1 2 3 4 Bit 2 OFF Shield Connection cable...
Page 112: Power Peak-Cut Control (Extended)
<SW07 Bit 2 OFF (two-step control)> Power peak-cut control is enabled as long as SW1, as shown on the wiring diagram, is ON (continuously). SW07 Bit 1 Indicator relay Jumper wire Input Bit 1 OFF Bit 1 ON (L1) 100% (normal operation) 100% (normal operation) 0% (forced stop) Approx.
Page 113: Snowfall Fan Control
6-8-3. Snowfall Fan Control : TCB-PCMO4E Header outdoor unit Locally procured Connection Outdoor unit Optional PCB cable Snowfall sensor interface PCB CN509 PJ17 COOL HEAT Shield wire SW1: Snowfall detection switch (snowfall sensor) Operation An external snowfall signal turns on the outdoor unit fan. Terminal Input signal Operation...
Page 114: Night Operation (Sound Reduction) Control
6-8-5. Night operation (sound reduction) Control : TCB-PCMO4E Header outdoor unit Locally procured Connection Optional PCB Outdoor unit cable interface PCB COOL CN508 PJ17 HEAT Shield wire SW1: Night time signal switch Operation This function decreases noise at night or other times as necessary. Terminal Input signal Operation...
Page 115: Operation Mode Selection Control
6-8-6. Operation Mode Selection Control : TCB-PCMO4E Header outdoor unit Locally procured Connection Outdoor unit Optional PCB cable interface PCB CN510 PJ17 COOL HEAT Shield wire SW1: Cooling mode specified input switch SW2: Heating mode specified input switch NOTE SW1: COOL mode selection switch SW2: HEAT mode selection switch Input signal Operation...
Page 116: Error/Operation Output
6-8-7. Error/Operation Output : TCB-PCIN4E Locally procured Header outdoor unit (See “NOTE”) Optional PCB Outdoor unit interface PCB OUTPUT1 SW16 CN511 PJ20 OUTPUT2 1 2 3 4 OUTPUT3 Shield wire Operation In-operation output: An in-operation indication signal is output as long as at least one indoor unit is in operation in the line.
Page 117: Compressor Operation Output
6-8-8. Compressor Operation Output : TCB-PCIN4E [Only supported by SHRM-i and SMMS-i (4 series)] Locally procured Outdoor unit (See “NOTE”) Optional PCB Outdoor unit interface PCB CTR1 OUTPUT1 SW16 CTR2 PJ20 CN514 OUTPUT2 1 2 3 4 CTR3 OUTPUT3 Shield wire Operation When a compressor is in operation, a relay connected to the output terminal assigned to it is turned on...
Page 118: Operating Rate Output
6-8-9. Operating Rate Output : TCB-PCIN4E [Only supported by SMMS-i (4 series)] Locally procured Header outdoor unit (See “NOTE”) Optional PCB Outdoor unit interface PCB OUTPUT1 SW16 PJ20 CN514 OUTPUT2 MONITOR 1 2 3 4 OUTPUT3 Shield wire Operation At the output terminals, a signal is present (relay closed) or absent (relay open) in various combinations according to the system operation factor, as shown in the diagram.
Page 119: Test Operation
7. TEST OPERATION 7-1. Procedure and Summary of Test Operation A test operation is executed with the following procedure. When problems or an error occurs at any step, remove the causes of the problem or error referring to “8 TROUBLESHOOTING.” Check basic items, mainly the installation work.
Page 120: Check Items Before Test Operation (Before Poweringon)
7-2. Check Items before Test Operation (before poweringon) Prior to the test operation, check the following items to verify there are no problems with the installation work. Main check items for electric wiring The communication system differs from that of R22 or R407 refrigerant “Modular Multi system” air conditioners. Check wiring points again carefully.
Page 121 (2) In the case that a central control system is connected (before address setup) Central remote controller To other refrigerant line Other refrigerant line Header unit (A) Follower unit (B) Follower unit (C) Outdoor unit To indoor unit Indoor unit Remote Remote Remote...
Page 122 (3) Connection check of FS (Flow Selector) unit with indoor unit To Header unit U1/U2 Cooling/Heating Cooling/Heating Cooling/Heating FS unit FS unit FS unit U1 U2 U1 U2 U1 U2 CN81 CN81 CN81 Indoor unit Indoor unit Indoor unit Remote Controller Remote Controller Remote Controller Main check items...
Page 123 Checklist 1 • Check that there are no problems with the installation work. Is the capacity of the Outdoor total capacity Header unit (A) Indoor unit circuit breaker (Earth Follower unit (B) leakage breaker) Follower unit (C) appropriate? Is the gauge of the Header unit (A) Indoor unit power cable correct?
Page 124 Checklist 2 • Check the additional amount of refrigerant. Calculate the additional amount of refrigerant from the additional amount of refrigerant (A) by the pipe diameter on the liquid side, the pipe length to be connected, and the corrective amount of refrigerant (C) according to system horsepower.
Page 125: Check At Main Power-On
7-3. Check at Main Power-on After turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a test operation, check the following items in each outdoor and indoor unit. (After turning on the main power, be sure to check in order: indoor unit → outdoor unit.) <Check on the outdoor unit>...
Page 126: Address Setup
7-4. Address Setup This product requires address setup before operation. Follow this procedure for address setup. 7-4-1. Precautions (1) Address setup is not performed simply by turning on the power supply. (2) For indoor units, address setup can be done either by “manual address setup” or “by automatic address setup” Automatic address setup: Setup from SW15 on the interface PC board of the header unit Manual address setup: Setup from the wired remote controller.
Page 127: Address Setup Procedure
7-4-3. Address Setup Procedure No central control: go to Address setting procedure 1 Central control of 2 or more refrigerant lines: go to Address setting procedure 2 When controlling a single refrigerant line When controlling 2 or more refrigerant lines (Example) centrally centrally...
Page 128 (Example) Controlling 2 or more refrigerant lines as a group Outdoor Outdoor System wiring Indoor Indoor Indoor Indoor diagram (Group control) Remote controller Address setting procedure 2 Set a system address for each system using SW 13 and 14 on the interface P.C. board on the header outdoor unit of each system.
Page 129 Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on all the header outdoor units that will be connected to the central control. (Factory default: disconnected) CENTRAL INDOOR OUTDOOR CONTROL UNIT UNIT Turn on indoor units first, and then turn on outdoor units. About 1 minute after turning the power on, confirm that the 7-segment display on the interface P.C.
Page 130 Set the central control address. (For the setting of the central control address, refer to the installation manuals of the central control devices or “Manual address setup from the remote controller” in the next to the following page and after. Header unit interface P.C.
Page 131 Switch setting (setting example when controlling 2 or more refrigerant lines centrally) Outdoor units (setting manually) *The items in bold font must be set manually. Outdoor unit’s interface Header unit Follower unit Header unit Follower unit Header unit Factory default P.C.
Page 132 Manual address setup from the remote controller With indoor wiring work completed and outdoor wiring work not done—in cases where indoor unit addresses are decided in advance from the wired remote controller, or in cases where addresses are change after address setup. (Wiring example for 2 refrigerant lines) Arrange one indoor unit and one remote Line 1...
Page 133 NOTE (1) When setting the line address from the remote controller, do not use addresses 29 and 30. Addresses 29 and 30 cannot be set up on the outdoor unit. If they are incorrectly used, the code “E04” (indoor/outdoor communication circuit error) is output. (2) When manual address setup has been done from a remote controller, and central control over refrigerant lines is to be done, setup the header unit of each line as follows: •...
Page 134 To find an indoor unit’s position from its address When checking unit numbers controlled as a group CODE No. DATA SETTING UNIT No. R.C. TEMP. ON / OFF TIMER SET TIME FILTER Stop RESET TEST SET CL (Execute it while the units are stopped.) The indoor unit numbers in a group are indicated one after another.
Page 135 Push and hold the TIME and buttons at the same time for more than 4 seconds. At first, the line 1 and CODE No. (Address Change) are indicated on the LCD display. (Select an outdoor unit.) Push the (left side of the button) and SWING/FIX buttons repeatedly to select a system UNIT LOUVER...
Page 136 Push the TIME buttons repeatedly to change the value indicated in the SET DATA section to that you want. Push the button. Push the button (left side of the button) repeatedly to select another indoor UNIT No. UNIT LOUVER to change. Repeat steps to change the indoor unit addresses so as to make each of them unique.
Page 137 CODE No. DATA SETTING UNIT No. R.C. TEMP. ON / OFF TIMER SET TIME FILTER RESET TEST SET CL Finish 5, 7 Push to finish setting. Push the TIME buttons repeatedly to change the value of the indoor unit address in SET DATA.
Page 138 2) Turn on dip switch 2 of SW30 on the interface P.C. board of the header outdoor unit if the switch is OFF. (Leave it as it is if it has already been set to ON.) Central remote controller Header Header Header Follower unit...
Page 139 In the case of an increase in address-undefined indoor units (extension, etc.) To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units or replacement of PC board, etc., follow the methods below. Method 1 Set up an address individually from a wired remote controller.
Page 140: Check After Address Setup When Central Control System Is Connected
7-4-4. Check after Address Setup when Central Control System Is Connected When the central control system is connected, check that the following setup has finished after address setup. Central remote controller To other refrigerant line Line address = 2 Line address = 1 Other refrigerant line Header unit (A) Header unit (A)
Page 141: Setting When Connecting Multiple Indoor Units To A Fs (Flow Selector) Unit
7-4-5. Setting when connecting multiple indoor units to a FS (Flow Selector) unit Cautions to connection of indoor unit How to set up CODE No. • When connecting the multiple indoor units to a single FS unit, it is necessary to set up the CODE No..
Page 142: How To Set Up The Cooling Only Indoor Unit
7-4-6. How to set up the cooling only indoor unit When setting the specific indoor unit to Cooling Only Select an indoor unit of which setting is to be unit without connecting to the flow selector unit, setup changed. to the indoor unit to become the Cooling Only unit is necessary.
Page 143: Troubleshooting In Test Operation
7-5. TROUBLESHOOTING IN TEST OPERATION If there are phenomena such as the output of a check code or the remote controller is not accepted when poweredon after wiring work or during address setup operation, the following causes are considered. 7-5-1. A Check Code Is Displayed on the Remote Controller Check the code Header displayed on the...
Page 144: Operation From The Indoor Remote Controller Is Not Accepted, And A Check Code Is
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. Indoor remote Header unit controller 7-segment Cause Countermeasures status display Line addresses and indoor addresses of all the connected Set up addresses.
Page 145: In Checking The Number Of Connected Outdoor Units And Connected Indoor Units After
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.) Status Cause Countermeasures Miswiring of communication lines between outdoor units After modification of wiring, set up the addresses again and The number of or an unconnected wire ( Fig.
Page 146 Miswiring example Remote Header unit Figure controller 7-segment Miswiring example status display Header unit Header unit U3 U4 U5 U6 Fig. 1 E19-00 response U1 U2 U1 U2 U1 U2 U1 U2 Header unit Follower unit U1 U2 U5 U6 U1 U2 U5 U6 Fig.
Page 147: Test Operation Check
7-6. Test Operation Check 7-6-1. Fan Check START Check code appears When a check code has been Push the Start/Stop button on the remote controller. displayed on the remote controller, remove the cause of the error, referring to "Check code and check Check code position displayed on remote appears...
Page 148: Cooling/Heating Test Operation Check
7-6-2. Single cooling/Single heating Test Operation Check The Single cooling/Single heating test operation check can be performed on both the indoor remote controller and the outdoor header unit interface PC board. (1) Test operation start/stop operation Test operation from the indoor remote controller •...
Page 149 Wireless remote controller Wireless remote controller (4-way Cassette type) (Ceiling type) Test run (Forced cooling operation) Test run (Forced cooling operation) Requirement: Requirement: • Finish the forced cooling operation in a short • Finish the forced cooling operation in a short time because it applies excessive strength to the time because it applies excessive strength to the air conditioner.
Page 150 (2) Test operation START Refer to "Test operation procedure" Test operation for one indoor unit of the indoor remote controller. The operation does not start for approximately 3 minutes after Operation starts powering-on or stopping operation. Note: After powering-on, it may require up to 10 minutes to start the operation due to the initial communications of the system.
Page 151 Note 1: Criteria for the difference between suction and discharge temperatures (1) Individual cooling operation After operating for a minimum of 30 minutes in “COOL” mode, if the ΔT dry bulb temperature difference between suction and discharge air of the indoor unit is 8°C or more, it is normal. (2) Individual heating operation After operating for a minimum of 30 minutes in “HEAT”...
Page 152: Service Support Function
7-7. Confirmation of Test Operation 7-7-1. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit The following functions of the indoor unit can start or stop by the switches on the interface P .C. board of the header unit. No. Function Outline Setup/Release 7-segment display...
Page 153: Operation Procedure
(1) Single cooling test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode, by using switches on the interface P.C. board of the header unit. <Operation procedure>...
Page 154 (2) Single heating test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode, by using switches on the interface P.C. board of the header unit. <Operation procedure>...
Page 155 (3) Single fan test operation function This function is provided to change collectively the mode of all the indoor units connected to the same system for the fan test operation mode by using switches on the interface P.C. board of the header unit. <Operation procedure>...
Page 156 (4) Batch start/stop (ON/OFF) function This function is provided to start/stop collectively all the indoor units connected to the same system by using switches on the interface P.C. board of the header unit. <Operation procedure> Be sure to turn on power at the indoor side Power ON before power-ON of outdoor unit.
Page 157 (5) Individual start/stop (ON/OFF) individual test operation function This function is provided to start/stop (ON/OFF) individually each indoor unit connected to the same system by using switches on the interface P.C. board of the header unit. Set SW01 [16] and set SW02, SW03 to indoor address No. (1 to 48) to be started (Refer to the following table*) - only the setup indoor unit starts operation.
Page 158: Error Clearing Function
7-7-2. Error Clearing Function (1) Clearing from the main remote controller Error clearing in outdoor unit Error of the outdoor unit currently detected is cleared by the unit of one refrigerant circuit system to which the indoor units operated by the remote controller is connected. (Error of the indoor unit is not cleared.) For clearing errors, the service monitor function of the remote controller is used.
Page 159 (2) Clearing error by using switches on the interface board of the header unit Using the switches on the interface P.C. board of the header unit, this function is to clear the currently detected error for each refrigerant circuit system without resetting the power supply. Errors in both outdoor and indoor units are once cleared, and error detection is performed again.
Page 160: Remote Controller Distinction Function
7-7-3. Remote Controller Distinction Function This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unit for a refrigerant circuit system by using switches on the interface P.C. board of the header unit. <Distinction procedure>...
Page 161: Pulse Motor Valve (Pmv) Forced Open/Close Function In Indoor Unit
7-7-4. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation on the interface P.C. board of the header unit. This function is also used to open PMV fully when turning off the power and executing an operation.
Page 162: Solenoid Valve Forced Open/Close Function In Outdoor Unit
7-7-6. Solenoid Valve Forced Open/Close Function in Outdoor Unit This function is provided to forcedly open each solenoid valve mounted in the outdoor unit by the switch operation on the interface P.C. board in the outdoor unit. Use this function to check there is no refrigerant clogging with ON/OFF operation of the solenoid valve.
Page 163: Fan Operation Check In Outdoor Unit
7-7-7. Fan Operation Check in Outdoor Unit This function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C. board in the outdoor unit. The frequency of the fan speed can be controlled by setting of the switches. Use this function to check the operation or abnormal sound in the fan system.
Page 164: Abnormal Outdoor Unit Discrimination Method By Fan Operating Function
7-7-8. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function This function is provided to forcedly operate the fan of the outdoor unit in which an error occurred or the fan of thevnormal outdoor unit by the switch operation on the interface P.C. board in the header unit. To specify which one of the follower units connected to the system was faulty, use this function for the system stop due to a follower unit fault (Check code [E28]).
Page 165: Manual Adjustment Function Of Outside Temperature (To) Sensor
7-7-9. Manual Adjustment Function of Outside Temperature (TO) Sensor This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board in the outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation is available by setting up the value manually to position near the current outside temperature.
Page 166 <Service support function list> SW01 SW02 SW03 7-segment display [A] Function contents [J . C] Refrigerant circuit and control communication line check function (Cooling operation) [J . H] Refrigerant circuit and control communication line check function (Heating operation) [P . ] Indoor PMV forced full open function [A .
Page 167: Monitor Function Of Remote Controller Switch
7-7-10. Monitor Function of Remote Controller Switch When using a remote controller with the model name RBC-AMT32E, the following monitor functions can be used. Calling of display screen <Content> The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can be known by calling up the service monitor mode from the remote controller.
Page 168 CODE No. Data name Display format Unit Remote controller display example Room temperature (During control) * ×1 ˚C Room temperature (Remote controller) ×1 ˚C Indoor suction temperature (TA) ×1 ˚C Indoor coil temperature (TCJ) ×1 ˚C [0024] = 24˚C Indoor coil temperature (TC2) ×1 ˚C Indoor coil temperature (TC1)
Page 169: Troubleshooting
8. TROUBLESHOOTING 8-1. Overview (1) Before engaging in troubleshooting (a) Applicable models All Super Heat Recovery Multi (SHRM-i) models. (Indoor units: MMO-APOOO, Outdoor units: MMY-MAPOOO4F ∗ (b) Tools and measuring devices required • Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc. •...
Page 170: Troubleshooting Method
8-2. Troubleshooting Method The remote controllers (main remote controller and central control remote controller) and the interface P.C. board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface P.C. board) to display operational status. Using this self-diagnosis feature, the fault site/faulty part may be identified in the event of a fault by following the method described below.
Page 171 (Error detected by main remote controller) Check code Display of receiving unit Indicator light block Outdoor 7-segment display Main Typical fault site Description of error remote Operation Timer Ready Sub-code Flash controller No master remote controller, Signals cannot be received from indoor unit; —...
Page 172 List of Check Codes (Outdoor Unit) (Errors detected by SHRM-i outdoor interface - typical examples) If “HELLO” is displayed on the outdoor 7-segment for 1 minute or more, turn off the power supply once and then turn on the power supply again after passage of IPDU: Intelligent Power Drive Unit (Inverter P.C.
Page 173 Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block central control Typical fault site Description of error or main remote Operation Timer Ready Sub-code Flash controller display — Low pressure sensor (Ps) error Output voltage of low pressure sensor (Ps) is zero. Output voltage of high pressure sensor (Pd) is zero —...
Page 174 Check code Display of receiving unit Outdoor 7-segment display TCC-LINK Indicator light block central control Typical fault site Description of error or main remote Operation Timer Ready Sub-code Flash controller display Outdoor liquid backflow detection State of refrigerant cycle circuit indicates liquid —...
Page 175: Troubleshooting Based On Information Displayed On Remote Controller
8-3. Troubleshooting Based on Information Displayed on Remote Controller Using main remote controller (RBC-AMT32E) (1) Checking and testing When a fault occurs to an air conditioner, a check code and indoor unit No. are displayed on the display window of the remote controller. Check codes are only displayed while the air conditioner is in operation.
Page 176 Using TCC-LINK central control remote controller (TCB-SC642TLE2) (1) Checking and testing When a fault occurs to an air conditioner, a Display of Unit No. Display of check code check code and indoor unit No. are displayed on the display window of the remote UNIT No.
Page 177 Using indoor unit indicators (receiving unit light block) (wireless type) To identify the check code, check the 7-segment display on the header unit. To check for check codes not displayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “8-2. Troubleshooting Method”.
Page 178 Light block Check code Cause of fault Heat exchanger temperature sensor (TCJ) error Operation Timer Ready Heat exchanger temperature sensor (TC2) error Heat exchanger temperature sensor (TC1) error Indoor unit temperature sensor errors Ambient temperature sensor (TA) error Alternate blinking Discharge temperature sensor (TF) error Discharge temperature sensor (TD1) error Operation...
Page 179 Other (indications not involving check code) Light block Check code Cause of fault Operation Timer Ready — Test run in progress Synchronized blinking Operation Timer Ready Setting incompatibility — (automatic cooling/heating setting for model incapable of it and heating setting for cooling-only model) Alternate blinking –...
Page 180: Check Codes Displayed On Remote Controller And Smms-I Outdoor Unit (7-Segment Display On I/F Board) And Locations To Be Checked
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 For other types of outdoor units, refer to their own service manuals. Check code Location Error detection Main Outdoor 7-segment display Description System status...
Page 181 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Indoor unit not All stop Indoor unit cannot be • Check connection of found during detected after indoor indoor-outdoor communication automatic automatic address setting is...
Page 182 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Detected Outdoor All stop Outdoor header unit receives • Check check code displayed outdoor unit follower unit error code from outdoor on outdoor follower unit.
Page 183 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code TO sensor error All stop Sensor resistance is infinity • Check connection of TO or zero (open/short circuit). sensor connector.
Page 184 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Pd sensor error All stop Output voltage of Pd • Check connection of Pd sensor sensor is zero connector.
Page 185 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Detected Low oil level All stop Operating compressor detects <All outdoor units in outdoor unit No. protection continuous state of low oil level corresponding line to be Display of center for about 2 hours.
Page 186 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code 01: TK1 oil Oil level All stop No temperature • Check for disconnection of TK1 sensor. circuit error detection change is detected •...
Page 187 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Indoor unit Outdoor units Stop of In case of different outdoor • Check outdoor unit model. model corresponding unit (Not corresponded to Air to (Check whether the outdoor —...
Page 188 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Extended IC error Continued There is part failure Check outdoor P.C. board (I/F). — — operation in P.C. board (I/F). Indoor unit Indoor fan motor Stop of...
Page 189 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Detection of open All stop • Open phase is detected when • Check for defect in outdoor phase/phase power is turned on.
Page 190 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code 01: TS condition All stop Protective shutdown due to • Check for insufficiency in leakdetection sustained suction refrigerant quantity. (TS1 condition) temperature at or above •...
Page 191 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code Discharge All stop Discharge temperature (TD3) • Check outdoor service valves temperature TD3 exceeds 115˚C. (discharge gas side, suction error gas side, liquid side) to confirm full opening.
Page 192 Check code Location Error detection Main Outdoor 7-segment display Description System Check items (locations) condition(s) remote Check Sub-code detection status controller code Activation of All stop Pd sensor detects pressure • Check for defect in Pd pressure sensor. high-pressure equal to or greater than •...
Page 193 Check code Location Error detection Main Outdoor 7-segment display Description System status Check items (locations) condition(s) remote Check Sub-code detection controller code 01: Compressor IPDU G-TR short-circuit All stop Overcurrent is momentarily • Check connector connection 1 side protection error detected during startup of and wiring on A3-IPDU P.C.
Page 194 Points to Note When Servicing Compressor (1) When checking the outputs of inverters, remove the wiring from all the compressors. How to Check Inverter Output (1) Turn off the power supply. (2) Remove compressor leads from the IPDU P.C. board (A3-IPDU). (Be sure to remove all the leads.) (3) Turn on the power supply and start cooling or heating operation.
Page 195: Diagnosis Procedure For Each Check Code
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Page 225: 7-Segment Display Function
8-6. 7-Segment Display Function 7-segment display on outdoor unit (interface P.C. board) The interface control P.C. board features a 7-segment LED display designed to check operational status. Display items can be changed by changing the combination of the number settings of rotary switches provided on the P.C.
Page 226 (1) Display of System Information (Displayed on Header Outdoor Unit Only) SW01 SW02 SW03 Display detail Unused System capacity [...8]~[42]:8 to 42 HP B [HP] No. of outdoor units [...1]~[...3]:1 to 3 B [...P] No. of indoor units connected / [...0.]~[48.]:0 to 48 (No.
Page 227 (2) Display of Outdoor Unit Information (Displayed on Each Outdoor Unit) SW01 SW02 SW03 Display detail Error data Outdoor unit No.: [U1] to [U4] B Check code (only latest one displayed) If there is no check code, [– – –] is displayed. ∗...
Page 228 (3) Display of Outdoor Cycle Data (Displayed at Each Outdoor Unit) SW01 SW02 SW03 Display detail Pd pressure data Pd pressure (MPaG) is displayed in decimal format. (MPaG: Approx. 10 times magnitude of kg/cm ∗ ∗ ∗ P d. ∗ ∗...
Page 229 (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 ∗ ∗ Error data : SW03 setting No. + 1 (Outdoor unit No. U2 to U3) B Check code is displayed (latest one only).
Page 230 (5) Display of Indoor Unit Information (Displayed on Header Unit Only) SW01 SW02 SW03 Display detail Indoor BUS communication signal Upon receiving signal: [..1], Other times: [..] receiving status Indoor check code No check code: [– – –] Indoor HP capacity 0.
Page 231: Oil Level Judgment Display
8-7. Oil Level Judgment Display The current compressor oil level judgment results can be accessed by setting the switches provided on the interface P.C. board of an outdoor unit. Perform the checks in accordance with the procedure described below. Operation Procedure (1) Start the operation.
Page 232 SHRM-i Outdoor Interface P.C. Board Function Setting Exchange Table Switch/Function Setting Exchange Initial setting Part type Exchange contents at shipment bit 1 Compressor 1 backup OFF: Normal, ON: Backup when compressor 1 was in trouble bit 2 Compressor 2 backup OFF: Normal, ON: Backup when compressor 2 SW06 DIP SW 4 bit...
Page 233 Switching of Jumper Wire/Function Setup Function switching setup × : With jumper, : Without jumper (Cut) Initial setting jumper Part type Exchange contents at shipment Optional function Indoor unit at not selected side is kept with waiting status. Operation mode selection The mode is changed a mode which selected the operation mode of the ×...
Page 234 Interface Board Switches and jumper wire positions to be used in the Function setup switching table CN30 CN31 CN32 Interface P.C.board SW30 SW06 SW07 SW09 SW10 SW11 SW12 SW13 SW14 SW16 SW17 – 234 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 235: Leakage/Clogging Of Refrigerating Cycle Circuit
8-8. Leakage/Clogging of Refrigerating Cycle Circuit List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part ∗ ∗ (MMY-MAP0804 , 1004 Clogging Site of fault Part Check target unit Detected fault and check code Symptom (see next page) Rise of abnormal pressure...
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Page 237 List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or Oil Circuit Part ∗ ∗ (MMY-MAP1204 , 1404 Clogging Site of fault Part Check target unit Detected fault and check code Symptom (see next page) Outdoor PMV1, 2, 4 Corresponding unit Activation of high-pressure protection Rise of abnormal pressure...
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Page 239: Flow Selector Unit (Fs Unit)
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Page 241 <REFERENCE> An Example of Refrigerant Flow in FS Unit When Trouble Occurred Cool/Heat FS unit Indoor unit – 241 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 242: Troubleshooting When Multiple Indoor Units Are Connected To Cool/Heat Fs Unit
8-8-2. Troubleshooting when Multiple Indoor Units are Connected to Cool/Heat FS Unit When multiple indoor units are connected to a Cool/Heat FS unit, it is necessary to set the Code No. [0E]. If this setting is forgotten, normal operation is impossible. [Case that Code No.
Page 243: Sensor Characteristics
8-9. Sensor Characteristics Outdoor Unit Temperature sensor characteristics Outdoor TS1, TS2 and TL sonsor Temperature [˚C] Resistance [kΩ] 108.1 80.0 59.8 Resistance 45.3 [ kΩ] Resistance 34.6 ( 10 ˚C or above ) [ kΩ] 26.6 ( 10 ˚C or below ) 20.6 16.1 12.7...
Page 244 Outdoor Unit Pressure sensor characteristics • Input/output wiring summary High pressure side (Pd) Low pressure side (Ps) Pin No. Input/output name Lead wire color Input/output name Lead wire color OUTPUT White — — — — OUTPUT White Black Black • Output voltage vs. pressure Input/output name Input/output name 0.5~4.3V...
Page 245 Indoor TC1 sensor Temperature [°C] Resistance [kΩ] 98.3 73.7 55.8 42.6 32.8 Resistance Resistance [kΩ] [kΩ] 25.5 (10°C or beiow) (10°C or above) 20.0 15.7 12.5 10.0 Temperature [°C] Indoor TC2 and TCJ, TOA sensor Temperature [°C] Resistance [kΩ] 102.9 76.6 57.7 44.0...
Page 246: Pressure Sensor Output Check
8-10. Pressure Sensor Output Check Outdoor Unit Pd sensor characteristics 0 to 4.41 MPa (0.5 to 5V output for 0 to 4.41 MPa) Voltage readings across pins 2 and 3 of CN501 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT...
Page 247 Outdoor Unit Ps sensor characteristics 0 to 1.47 MPa (0.5 to 5V output for 0 to 1.47 MPa) Voltage readings across pins 2 and 3 of CN500 on indoor unit main P.C. board (with negative-side probe of multimeter placed on pin 3) VOLT VOLT VOLT...
Page 248: Backup Operation (Emergency Operation)
9. BACKUP OPERATION (EMERGENCY OPERATION) This product offers backup modes of operation to tide over certain emergency situations. If a fault occurs in one of the compressors, it is possible to operate the system on an emergency basis by operating only the remaining compressor(s), (compressor backup operation).
Page 249: Compressor Backup Operation Setting
9-2. Compressor Backup Operation Setting <Outline> If a fault occurs to one of the compressors installed in outdoor unit, follow the procedure described below to back up the faulty compressor by using the remaining, normal compressor(s). <Work Procedure> (1) Turn off the power supply to all the outdoor units connected to the system. (2) Set the DIP switches of SW06, provided on the interface P.C.
Page 250: Outdoor Unit Backup Operation Setting
9-3. Backup Setup for Outdoor Unit Outline In this model, setup of the backup operation is available in either the header unit or the follower unit in a situation where the outdoor units are defective. In a system in which two or more outdoor units are connected, carry out the backup operation on the outdoor unit if the error modes described below occur.
Page 251: Outdoor Unit Refrigerant Recovery Method
10. OUTDOOR UNIT REFRIGERANT RECOVERY METHOD 10-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down) This product supports refrigerant pump-down, a function which allows refrigerant to be recovered from an outdoor unit in need of repair using a normal outdoor unit in a system featuring multiple outdoor units. 10-1-1.
Page 252 (6) Approx. 10 minutes after the system starts up, fully close the gas pipe service valve of the failed outdoor unit. (7) Push SW04 of the failed outdoor unit to have pressure data (MPa) displayed. (The display switches each time SW04 is pushed.) Display Example [rd] […11] [Pd] [1.20]...
Page 253 [Setup of the power cannot be turned on the failed outdoor unit] If the power cannot be turned on the failed outdoor unit, the solenoid valves and PMVs of the unit cannot be turned on, so that it reduces the amount of recovered refrigerant compared to a standard pump-down operation.
Page 254 [Setup of failed outdoor unit] (11) When the manifold gauge pressure of the failed outdoor unit falls below 0.10 MPa, fully close the balance pipe packed valve, and push SW05 on the interface P.C. board to finish the test cooling operation. (12) Turn off the power supply to all the outdoor units, and recover the residual refrigerant in the outdoor unit using a refrigerant recovery device.
Page 255: How To Operate System While Failed Outdoor Unit Being Repaired
10-2. How to Operate System While Failed Outdoor Unit Being Repaired <Outline> After refrigerant is recovered from the failed outdoor unit through a pump-down operation, the overall amount of refrigerant held by the system becomes excessive, and this makes it impossible to operate the remaining outdoor units even though they are not faulty.
Page 256: Work Procedure After Repair
10-3. Work procedure after Repair When vacuuming in the repaired outdoor unit, follow the procedure described below. <Work procedure> (1) Fully open PMV1 and 2 and PMV4 in accordance with the table below. Note: PMV full-opening operation via short-circuiting of the CN30 pins is automatically undone after 2 minutes, causing the valves to fully close.
Page 257: Replacing Compressors
11. REPLACING COMPRESSORS 11-1. Compressor Replacement Procedure (Outline) START WARNING In situations such as indoor unit relocation and Is the outdoor unit the only one in the system? repairs, it is not possible to recover all the refrigerant held by the system in the outdoor units. It could cause a serious accident, such as blow out or injury.
Page 258: Replacement Of Compressors
11-2. Replacement of Compressors <Checking color of oil in faulty compressor> • Lay the faulty compressor down, draw a small amount of oil via the oil equalization pipe, and check its color against color samples. • Determine the number of compressors to be replaced according to the color checking result. ASTM grade: Below 4 →...
Page 259 [When replacing normal as well as faulty compressor] - applicable to MMY-MAP0804 ∗ and 1004 ∗ <Dismantling normal compressor> • Dismantle the normal compressor in the same way as the faulty compressor. Note: • Be sure to insulate the removed compressor leads using insulation tape, etc. WARNING When detaching a pipe by heating with a burner a welded joint, take care as any oil left in the piping may burn in a momentary flash of fire when the weld filler metal melts.
Page 260 [When replacing normal as well as faulty compressors] - applicable to MMY-MAP1204* and 1404* <Dismantling normal compressors> • Dismantle the normal compressors in the same way as the faulty compressor. Note: • Be sure to insulate the removed compressor leads using insulation tape, etc. WARNING When detaching a pipe by heating with a burner a welded joint, take care as any oil left in the piping may burn in a momentary flash of fire when the weld filler metal melts.
Page 261 <Installing compressor> • Install a compressor by following the dismantling procedure in reverse. WARNING The dismantling process may have loosened compressor leads and faston connectors. Prior to installation, therefore, tighten them a little with a pair of pliers, and verify that they are tight after reconnection. Notes: •...
Page 262: Check Procedure To Search Cause Of Compressor Oil Shortage
11-3. Check Procedure to Search Cause of Compressor Oil Shortage Are the balance pipes of all outdoor units connected to the Open the balance pipe valves fully. same refrigerant line fully open? Are there Correct the miswiring or connection. any miswiring or incorrect TK1: CN531 TK2: CN532 connection of TK1, TK2, TK3, TK4 and TK3: CN533 TK4: CN534...
Page 263 ∗ ∗ ∗ ∗ <MMY-MAP0804 , MAP1004 , MAP1204 and MAP1404 > Check items and procedures to follow when checking oil circuit with compressor(s) disconnected Check item Location Procedure 1) Pressure nitrogen from check joint of the liquid pipe under condition that PMV1, 2 and 4 are fully closed, confirm the pressure using high-pressure check joint.
Page 264: Outdoor Unit Parts Replacement Methods
12. OUTDOOR UNIT PARTS REPLACEMENT METHODS No. Part to be replaced Work procedure Remarks Cabinet WARNING 2) Discharge cabinet Screws (4 corners) Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1.
Page 265 No. Part to be replaced Work procedure Remarks Propeller fan WARNING Fan motor 2) Screws (4 corners) Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Stop the air conditioner operation, and turn off the circuit breaker.
Page 266 No. Part to be replaced Work procedure Remarks Propeller fan 2. CAUTION for replacement or attachment Fan motor 1) Insert the propeller fan while aligning the D-cut D-cut surface of fan (continued) surface of the fan motor shaft with the arrow mark motor shaft ) on the fan.
Page 267 No. Part to be replaced Work procedure Remarks Heat exchanger WARNING 3) Discharge cabinet anchor plate Wear a pair of gloves. 2) Motor base Otherwise, you will risk an injury involving a replacement part or some other object. Before the work, be sure to recover the refrigerant of outdoor unit into cylinders or another unit connected to the same system.
Page 268 No. Part to be replaced Work procedure Remarks Inverter assembly WARNING 4) Screw (with arrow mark) Wear a pair of gloves. Otherwise, you will risk an injury involving a Removable design replacement part or some other object. 4) Screw 1. Detachment (with arrow mark) 1) Stop the air conditioner operation, and turn off the 4) Connector...
Page 269 No. Part to be replaced Work procedure Remarks Reactor assembly WARNING • 12, 14HP case Fixing claw (slide stopper to right) Wear a pair of gloves. Otherwise, you will risk an injury involving a 3) Screw replacement part or some other object. 1.
Page 270 No. Part to be replaced Work procedure Remarks 2-way valve coils Pressure sensors Rear locations SV3A SV3B MAP0804FT ∗ MAP1004FT ∗ SV14 SV3C Liquid tank SV3E SV3D SV11 Oil separator SV41 SV42 Accumulator PS sensor PD sensor Front ∗ MAP1204FT ∗...
Page 271 No. Part to be replaced Work procedure Remarks Temperature Product Front View sensors TD1 sensor TD2 sensor (yellow) (red) - locations and identification colors MAP0804FT ∗ ∗ MAP1004FT TE2 sensor (red) Accumulator Compressor 1 Compressor 2 Front side Product Rear View TK4 sensor (white) TS1 sensor (gray) TK1 sensor (black)
Page 272 No. Part to be replaced Work procedure Remarks Temperature Product Front View sensors - locations and TD1 sensor TD2 sensor identification colors TD3 sensor (black) (yellow) (red) (continued) ∗ MAP1204FT MAP1404FT ∗ TE2 sensor (red) Accumulator Compressor 2 Compressor 3 Compressor 1 Front side Product Rear View...
Page 273 No. Part to be replaced Work procedure Remarks Pipe fixing rubber This product employs pipe fixing rubber (eyeglass type), combined with a SUS band, to restrain pipes - detachment/ subject to vibration to improve reliability. attachment <Use of SUS band - total 5 locations> MAP0804FT ∗...
Page 274 No. Part to be replaced Work procedure Remarks Pipe fixing rubber WARNING - detachment/ attachment (common) Wear a pair of gloves. Otherwise, you will risk an injury involving a replacement part or some other object. 1. Detachment 1) Hold the pipe fixing rubber in such a manner that your fingers and thumb are in contact with the two longitudinal ends of the piece, and squeeze it a little to create a small gap between the rubber and the...
Page 275 No. Part to be replaced Work procedure Remarks 4-way valve WARNING - detachment/ attachment MAP0804FT ∗ Wear a pair of gloves. MAP1004FT ∗ Otherwise, you will risk an injury involving a 4) Brazed point replacement part or some other object. Before starting the work, be sure to recover the refrigerant of outdoor unit by removing it with a refrigerant recovery device.
Page 276 No. Part to be replaced Work procedure Remarks 4-way valve WARNING - detachment/ attachment (continued) Wear a pair of gloves. MAP1204FT ∗ Otherwise, you will risk an injury involving a ∗ MAP1404FT 4) Brazed point replacement part or some other object. Before starting the work, be sure to recover the refrigerant of outdoor unit by removing it with a refrigerant recovery device.
Page 277: Board Exchange Procedures
13. P.C. BOARD EXCHANGE PROCEDURES Indoor Unit 13-1. Replacement of Indoor P.C. Boards Part code Model type P.C. board type ∗∗ MMU-AP 4MH series ∗∗ MMU-AP 4SH series 431-6V-437 MCC-1402 ∗∗ MMC-AP 4H series ∗∗ MMD-AP 4SPH series ∗∗ 431-6V-438 MMD-AP 4BH series MCC-1402...
Page 278 Method 2 If it is not possible to turn on the indoor unit or read the setting data from the P.C. board to be replaced via a wired remote controller or operate the remote controller due to the failure of its power supply circuit - Replacing EEPROM (IC10) (For the location of this component and the method to replace it, see the “EEPROM Location Diagram”...
Page 279 Procedure 1: Reading Setting Data from EEPROM (Read the setting data from EEPROM, including both the factory settings and any modifications made to them on site.) Push the buttons simultaneously and hold for at least 4 seconds. (This TEST number corresponds to the same number shown on the Remote Controller Operation Diagram.) * In the case of group control, the unit No.
Page 280 Procedure 2: Replacing P.C. Board Replace the faulty P.C. board with a service P.C. board. Be sure to replicate the old jumper setting (removal), switch setting (SW501), and connector short-circuit setting (Ex. CN34) on the service P.C. board. (See the diagram at below.) (MCC-1402) CN41 (MCC-1403)
Page 281 Procedure 3: Writing Setting Data in EEPROM (The EEPROM of the service P.C. board has been set to the factory default values.) Push the buttons simultaneously and hold for at least 4 seconds. (This TEST number corresponds to the same number shown on the Remote Controller Operation Diagram.) (Under UNIT No., ALL is displayed.) At the same time, the CODE No.
Page 282 EEPROM Location Diagram The EEPROM (IC10) is mounted on an IC socket. Use a pair of tweezers, etc. to remove it. When installing it, adjust its orientation as shown in the diagram below. During EEPROM removal/installation, take care not to bend IC leads. P.C.
Page 283 CODE No. list (Example) CODE No. (DN) Item Setting data Factory-set value Filter sign lighting time Depending on Type Filter pollution leve 0000: standard Central control address 0099: Not determined Heating suction temperature shift 0002: +2˚C (Floor standing type: 0) Existence of automatic COOL/HEAT mode 0001: No auto mode cooling/heating * Automatically selection by connected outdoor...
Page 284 Type Indoor unit capacity Code No. [10] CODE No. [11] Setup data Type Model abb. name Setup data Model Setup data Model ∗∗∗ 0000 1-way Cassette MMU-AP 0000* Invalid 0016 — ∗∗∗ 0001 *1, *2 4-way Cassette MMU-AP 0001 007 type 0017 048 type ∗∗∗...
Page 285: Replacement Of Outdoor P.c. Boards
Outdoor Unit 13-2. Replacement of Outdoor P.C. Boards 13-2-1. List of service P.C. boards Part code Description Applicable model P.C. board type code Product code ∗ 431 6V 503 Interface P.C. board MMY-MAP0804FT MCC-1606 ASM-PCB(I/F) ∗ MMY-MAP1004FT 431 6V 441 Comp-IPDU P.C.
Page 286: Interface Board (Mcc-1606) Replacement Method
13-2-3. Interface board (MCC-1606) replacement method This Interface board is commonly installed in different models before shipment. When the board assembly is to be replaced, check the displayed inspection contents below and replace the board in accordance with the model, following the below procedure. Replacement steps: (1) Turn off the power supply of the outdoor unit.
Page 287: Comp-Ipdu P.c. Board (Mcc-1596) Replacement Procedure
13-2-4. Comp-IPDU P.C. Board (MCC-1596) Replacement Procedure This board is commonly installed in different models before shipment. Set the dip switch (SW800) setting of the service board to the switch setting before replacement. Replacement Steps: (1) Turn off the power supply of the outdoor unit and allow at least 3 minute for the capacitor to discharge. (2) Remove all the connectors and the fast-on terminals ( ) connected to the Compressor IPDU.
Page 288 (6) Set the dip switch (SW800) setting of the service board to match the switch setting from the original PCB. - Set the dip switch (SW800) depending on the position of the IPDU within the electrical box, as shown in the following diagram.
Page 289: Fan Ipdu P.c. Board (Mcc-1610) Replacement Procedure
13-2-5. Fan IPDU P.C. Board (MCC-1610) Replacement Procedure Replacement steps: (1) Turn off the power supply of the outdoor unit and allow at least one minute for the capacitor to discharge. Confirm that the light of the LED (D640) fades away. (2) Remove all the connectors and the fast-on terminals ( ) connected to the FAN IPDU.
Page 290: Noise Filter P.c. Board (Mcc-1608 A, B) Replacement Procedure
13-2-6. Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure <1. Preparation (model selection)> All P.C. boards of this type leave the factory with default settings that are common to all applicable models. When replacing a P.C. board assembly on site, follow the procedure described below. <2.
Page 291 (3) Disconnect all the connectors and fastons used to connect wiring to the noise filter P.C. board. • The line filter ( ) and its leads, both connected to the screw-on terminals ( ) of the noise filter P.C. board (A) will be removed in step 6.
Page 292 (7) Install the service P.C. boards (A) and (B) in the outdoor unit controller. (Make sure that they are firmly secured to the card edge spacers ( (8) Securely connect the service P.C. boards to the chassis using the earthing screws ( ), ( ) removed in step 4.
Page 293: Exploded Diagram/Parts List
14. EXPLODED DIAGRAM/PARTS LIST Outdoor unit MMY-MAP0804FT8(Z)(ZG)-E MMY-MAP1004FT8(Z)(ZG)-E – 293 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 294 MMY-MAP0804FT8(Z)(ZG)-E MMY-MAP1004FT8(Z)(ZG)-E – 294 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 295 Refrigeration Circuit diagram MMY-MAP0804FT8(Z)(ZG)-E MMY-MAP1004FT8(Z)(ZG)-E MOTOR FAN PULSE MOTOR CONDENSER VALE RIGHT SIDE (TO) PULSE MOTOR VALE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) PRESSURE (TS1) SENSOR (TL)
Page 296 MMY-MAP1204FT8(Z)(ZG)-E MMY-MAP1404FT8(Z)(ZG)-E – 296 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 297 MMY-MAP1204FT8(Z)(ZG)-E MMY-MAP1404FT8(Z)(ZG)-E – 297 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 298 Refrigeration Circuit diagram MMY-MAP1204FT8(Z)(ZG)-E MMY-MAP1404FT8(Z)(ZG)-E MOTOR FAN PULSE CONDENSER MOTOR RIGHT SIDE (TO) PULSE VALVE MOTOR VALVE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALVE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) (TS1) PRESSURE SENSOR (TL)
Page 299 CABINET ASSY, FRONT, DOWN 43100483 43100484 CABINET ASSY, BACK, DOWN 43100485 CABINET ASSY, FRONT, DOWN 43100486 CABINET ASSY, BACK, DOWN 43119525 GUARD, FAN 4311M675 MARK, TOSHIBA 43120252 FAN, PROPELLER MOTOR, FAN, DC280V 4312C101 43141518 COMPRESSOR, DA421A3FB-29M 43146712 VALVE, 2WAY 43146715 VALVE, CHECKED...
Page 300 ∗∗∗∗ MMY-MAP FT8(Z)(ZG)-E Ref.No. Part No. Description 0804 1004 1204 1404 43149406 RUBBER, SUPPORTER, PIPE 43149407 RUBBER, SUPPORTER, PIPE 43149408 RUBBER, SUPPORTER, PIPE 43149409 RUBBER, SUPPORTER, PIPE 4314G309 CONDENSER ASSY, THREE ROW, LEFT 4314G310 CONDENSER ASSY, THREE ROW, RIGHT 4314G312 CONDENSER ASSY, THREE ROW, LEFT CONDENSER ASSY, THREE ROW, RIGHT 4314G311...
Page 301 Inverter assembly MMY-MAP0804FT8(Z)(ZG)-E MMY-MAP1004FT8(Z)(ZG)-E MMY-MAP1204FT8(Z)(ZG)-E MMY-MAP1404FT8(Z)(ZG)-E – 301 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 302 ∗∗∗∗ MMY-MAP FT8(Z)(ZG)-E Ref.No. Part No. Description 0804 1004 1204 1404 43050425 SENSOR ASSY, SERVICE 43F63248 SUPPORTER, ASSY 43150315 SENSOR,TD(F6) 43160620 TERMINAL, 4P 43158228 REACTOR 43158229 REACTOR, CH-79 43160621 TERMINAL, 6P 43152519 CONTACTOR, MAGNETIC 43160583 TERMINAL, 6P 43F69524 SUPORT, SPACER 43182011 SPACER(EDGE) 4316V440...
Page 303 Outdoor unit MMY-MAP0804FT8(Z)(ZG)-TR MMY-MAP1004FT8(Z)(ZG)-TR – 303 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 304 MMY-MAP0804FT8(Z)(ZG)-TR MMY-MAP1004FT8(Z)(ZG)-TR – 304 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 305 Refrigeration Circuit diagram MMY-MAP0804FT8(Z)(ZG)-TR MMY-MAP1004FT8(Z)(ZG)-TR MOTOR FAN PULSE MOTOR CONDENSER VALE RIGHT SIDE (TO) PULSE MOTOR VALE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) PRESSURE (TS1) SENSOR (TL)
Page 306 MMY-MAP1204FT8(Z)(ZG)-TR MMY-MAP1404FT8(Z)(ZG)-TR – 306 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 307 MMY-MAP1204FT8(Z)(ZG)-TR MMY-MAP1404FT8(Z)(ZG)-TR – 307 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 308 Refrigeration Circuit diagram MMY-MAP1204FT8(Z)(ZG)-TR MMY-MAP1404FT8(Z)(ZG)-TR MOTOR FAN PULSE CONDENSER MOTOR RIGHT SIDE (TO) PULSE VALVE MOTOR VALVE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALVE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) (TS1) PRESSURE SENSOR (TL)
Page 309 CABINET ASSY, FRONT, DOWN 43100483 43100484 CABINET ASSY, BACK, DOWN 43100485 CABINET ASSY, FRONT, DOWN 43100486 CABINET ASSY, BACK, DOWN 43119525 GUARD, FAN 4311M675 MARK, TOSHIBA 43120252 FAN, PROPELLER MOTOR, FAN, DC280V 4312C101 43141518 COMPRESSOR, DA421A3FB-29M 43146712 VALVE, 2WAY 43146715 VALVE, CHECKED...
Page 310 ∗∗∗∗ MMY-MAP FT8(Z)(ZG)-TR Ref.No. Part No. Description 0804 1004 1204 1404 43149406 RUBBER, SUPPORTER, PIPE 43149407 RUBBER, SUPPORTER, PIPE 43149408 RUBBER, SUPPORTER, PIPE 43149409 RUBBER, SUPPORTER, PIPE 4314G309 CONDENSER ASSY, THREE ROW, LEFT 4314G310 CONDENSER ASSY, THREE ROW, RIGHT 4314G312 CONDENSER ASSY, THREE ROW, LEFT CONDENSER ASSY, THREE ROW, RIGHT 4314G311...
Page 311 Inverter assembly MMY-MAP0804FT8(Z)(ZG)-TR MMY-MAP1004FT8(Z)(ZG)-TR MMY-MAP1204FT8(Z)(ZG)-TR MMY-MAP1404FT8(Z)(ZG)-TR – 311 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 312 ∗∗∗∗ MMY-MAP FT8(Z)(ZG)-TR Ref.No. Part No. Description 0804 1004 1204 1404 43050425 SENSOR ASSY, SERVICE 43F63248 SUPPORTER, ASSY 43150315 SENSOR,TD(F6) 43160620 TERMINAL, 4P 43158228 REACTOR 43158229 REACTOR, CH-79 43160621 TERMINAL, 6P 43152519 CONTACTOR, MAGNETIC 43160583 TERMINAL, 6P 43F69524 SUPORT, SPACER 43182011 SPACER(EDGE) 4316V440...
Page 313 Outdoor unit MMY-MAP0804FT8(Z)(ZG) MMY-MAP1004FT8(Z)(ZG) – 313 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 314 MMY-MAP0804FT8(Z)(ZG) MMY-MAP1004FT8(Z)(ZG) – 314 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 315 Refrigeration Circuit diagram MMY-MAP0804FT8(Z)(ZG) MMY-MAP1004FT8(Z)(ZG) MOTOR FAN PULSE MOTOR CONDENSER VALE RIGHT SIDE (TO) PULSE MOTOR VALE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) PRESSURE (TS1) SENSOR (TL)
Page 316 MMY-MAP1204FT8(Z)(ZG) MMY-MAP1404FT8(Z)(ZG) – 316 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 317 MMY-MAP1204FT8(Z)(ZG) MMY-MAP1404FT8(Z)(ZG) – 317 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 318 Refrigeration Circuit diagram MMY-MAP1204FT8(Z)(ZG) MMY-MAP1404FT8(Z)(ZG) MOTOR FAN PULSE CONDENSER MOTOR RIGHT SIDE (TO) PULSE VALVE MOTOR VALVE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALVE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) (TS1) PRESSURE SENSOR (TL)
Page 319 CABINET ASSY, FRONT, DOWN 43100483 43100484 CABINET ASSY, BACK, DOWN 43100485 CABINET ASSY, FRONT, DOWN 43100486 CABINET ASSY, BACK, DOWN 43119505 GUARD, FAN 4311M675 MARK, TOSHIBA 43120252 FAN, PROPELLER MOTOR, FAN, DC280V 4312C101 43141518 COMPRESSOR, DA421A3FB-29M 43146712 VALVE, 2WAY 43146715 VALVE, CHECKED...
Page 320 ∗∗∗∗ MMY-MAP FT8(Z)(ZG) Ref.No. Part No. Description 0804 1004 1204 1404 43149406 RUBBER, SUPPORTER, PIPE 43149407 RUBBER, SUPPORTER, PIPE 43149408 RUBBER, SUPPORTER, PIPE 43149409 RUBBER, SUPPORTER, PIPE 4314G309 CONDENSER ASSY, THREE ROW, LEFT 4314G310 CONDENSER ASSY, THREE ROW, RIGHT 4314G312 CONDENSER ASSY, THREE ROW, LEFT CONDENSER ASSY, THREE ROW, RIGHT 4314G311...
Page 321 Inverter assembly MMY-MAP0804FT8(Z)(ZG) MMY-MAP1004FT8(Z)(ZG) MMY-MAP1204FT8(Z)(ZG) MMY-MAP1404FT8(Z)(ZG) – 321 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 322 ∗∗∗∗ MMY-MAP FT8(Z)(ZG) Ref.No. Part No. Description 0804 1004 1204 1404 43050425 SENSOR ASSY, SERVICE 43F63248 SUPPORTER, ASSY 43150315 SENSOR,TD(F6) 43160620 TERMINAL, 4P 43158228 REACTOR 43158229 REACTOR, CH-79 43160621 TERMINAL, 6P 43152519 CONTACTOR, MAGNETIC 43160583 TERMINAL, 6P 43F69524 SUPORT, SPACER 43182011 SPACER(EDGE) 4316V440...
Page 323 Outdoor unit MMY-MAP0804FT7(Z)(ZG) MMY-MAP1004FT7(Z)(ZG) – 323 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 324 MMY-MAP0804FT7(Z)(ZG) MMY-MAP1004FT7(Z)(ZG) – 324 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 325 Refrigeration Circuit diagram MMY-MAP0804FT7(Z)(ZG) MMY-MAP1004FT7(Z)(ZG) MOTOR FAN PULSE MOTOR CONDENSER VALE RIGHT SIDE (TO) PULSE MOTOR VALE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) PRESSURE (TS1) SENSOR (TL)
Page 326 MMY-MAP1204FT7(Z)(ZG) MMY-MAP1404FT7(Z)(ZG) – 326 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 327 MMY-MAP1204FT7(Z)(ZG) MMY-MAP1404FT7(Z)(ZG) – 327 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 328 Refrigeration Circuit diagram MMY-MAP1204FT7(Z)(ZG) MMY-MAP1404FT7(Z)(ZG) MOTOR FAN PULSE CONDENSER MOTOR RIGHT SIDE (TO) PULSE VALVE MOTOR VALVE 2 SUB CONDENSER RIGHT SIDE PULSE MOTOR VALVE 1 CONDENSER LEFT SIDE (TE1) SUB CONDENSER LEFT SIDE (TE2) (SV11) 4-WAY VALVE (SV5) (TS1) PRESSURE SENSOR (TL)
Page 329 CABINET ASSY, FRONT, DOWN 43100483 43100484 CABINET ASSY, BACK, DOWN 43100485 CABINET ASSY, FRONT, DOWN 43100486 CABINET ASSY, BACK, DOWN 43119505 GUARD, FAN 4311M675 MARK, TOSHIBA 43120252 FAN, PROPELLER MOTOR, FAN, DC280V 4312C101 43141518 COMPRESSOR, DA421A3FB-29M 43146712 VALVE, 2WAY 43146715 VALVE, CHECKED...
Page 330 ∗∗∗∗ MMY-MAP FT7(Z)(ZG) Ref.No. Part No. Description 0804 1004 1204 1404 43149406 RUBBER, SUPPORTER, PIPE 43149407 RUBBER, SUPPORTER, PIPE 43149408 RUBBER, SUPPORTER, PIPE 43149409 RUBBER, SUPPORTER, PIPE 4314G309 CONDENSER ASSY, THREE ROW, LEFT 4314G310 CONDENSER ASSY, THREE ROW, RIGHT 4314G312 CONDENSER ASSY, THREE ROW, LEFT CONDENSER ASSY, THREE ROW, RIGHT 4314G311...
Page 331 Inverter assembly MMY-MAP0804FT7(Z)(ZG) MMY-MAP1004FT7(Z)(ZG) Inverter assembly MMY-MAP1204FT7(Z)(ZG) MMY-MAP1404FT7(Z)(ZG) – 331 – AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...
Page 332 ∗∗∗∗ MMY-MAP FT7(Z)(ZG) Ref.No. Part No. Description 0804 1004 1204 1404 43050425 SENSOR ASSY, SERVICE 43F63248 SUPPORTER, ASSY 43150315 SENSOR,TD(F6) 43160620 TERMINAL, 4P 43158228 REACTOR 43158229 REACTOR, CH-79 43160621 TERMINAL, 6P 43152395 CONTACTOR, MAGNETIC 43160583 TERMINAL, 6P 43F69524 SUPORT, SPACER 43182011 SPACER(EDGE) 4316V440...
Page 333 TOSHIBA CARRIER CORPORATION 23-17, TAKANAWA 3 CHOME, MINATOKU, TOKYO, 108-8580, JAPAN Copyright © 1999 to 2012 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved. AMP Air Conditioning www.ampair.co.uk | sales@ampair.co.uk...

This manual is also suitable for:

Mmy-map1004ft8(zg)Mmy-map1204ft8(zg)Mmy-map1404ft8(zg)Mmy-map1404ft8(zg)-e Mmy-map1004ft8(zg)-e Mmy-map0804ft8(zg)-tr ... Show all

Toshiba MMY-MAP0804FT8(ZG)-E Service Manual

Original Instruction

New Refrigerant (R410A)

1 Wiring Diagrams

Outdoor Unit

Indoor Unit

Flow Selector Unit

2 Parts Rating

Outdoor Unit (50Hz Model: MMY-MAP ∗∗∗ 4FT8-E, MAP ∗∗∗ 4FT8-TR, MAP ∗∗∗ 4FT8)

Outdoor Unit (60Hz Model: MMY-MAP ∗∗∗ 4FT7)

Outdoor Inverter (50Hz Model: MMY-MAP MAP ∗∗∗ 4FT8)

Outdoor Inverter (60Hz Model: MMY-MAP ∗∗∗ 4FT7)

Parts Layout in Outdoor Unit

Parts Layout in Inverter Assembly

Outdoor (Inverter) Print Circuit Board

3 Refrigerant Piping Systematic Drawing

4 System Refrigeerant Piping Schematic Diagrams

Single Cooling Mode (Operation of Cooling Only) When Outside Temperature Is High

Single Cooling Mode (Operation of Cooling Only) When Outside Temperature Is Low

Single Heating Mode (Operation of Heating Only)

Collective Cooling Mode (Operating Cooling Function Mainly, Collective Operation of Cooling and Heating Operation)

Collective Heating Mode (Operating Heating Function Mainly, Collective Operation of Cooling and Heating Operation)

Emergency Operation (Single Cooling Operation at Backup of the Center Unit)

Emergency Operation (Single Heating Operation at Backup of the Center Unit)

Refrigerant Recovery (During Pump-Down Operation) of the Troubled Outdoor Unit)

5 Control Outline

Indoor Unit

Outdoor Unit

6 Applied Control and Functions (Including Circuit Configuration)

Indoor Controller Block Diagram

Indoor Printed Circuit Board

Optional Connector Specifications of Indoor P.C. Board

Test Operation of Indoor Unit

Method to Set Indoor Unit Function DN Code

Applied Control of Indoor Unit

Applied Control for Outdoor Unit

Applied Control of Outdoor Unit

7 Test Operation

Procedure and Summary of Test Operation

Check Items before Test Operation (before Poweringon)

Check at Main Power-On

Address Setup

Troubleshooting in Test Operation

Test Operation Check

Service Support Function

8 Troubleshooting

Overview

Troubleshooting Method

Troubleshooting Based on Information Displayed on Remote Controller

Check Codes Displayed on Remote Controller and SMMS-I Outdoor Unit (7-Segment Display on I/F Board) and Locations to be Checked

Diagnosis Procedure for each Check Code

7-Segment Display Function

Oil Level Judgment Display

Leakage/Clogging of Refrigerating Cycle Circuit

Sensor Characteristics

Pressure Sensor Output Check

9 Backup Operation (Emergency Operation)

Note for Backup Operation

Compressor Backup Operation Setting

Outdoor Unit Backup Operation Setting

10 Outdoor Unit Refrigerant Recovery Method

Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)

How to Operate System While Failed Outdoor Unit Being Repaired

Work Procedure after Repair

11 Replacing Compressors

Compressor Replacement Procedure (Outline)

Replacement of Compressors

Check Procedure to Search Cause of Compressor Oil Shortage

12 Outdoor Unit Parts Replacement Methods

13 Board Exchange Procedures

Replacement of Indoor P.C. Boards

Replacement of Outdoor P.C. Boards

14 Exploded Diagram/Parts List

Quick Links

SERVICE MANUAL

Troubleshooting

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Summary of Contents for Toshiba MMY-MAP0804FT8(ZG)-E