Page 2 - CONTENTS
CONTENTS SAFETY CAUTION ............................................................................................ 3 1. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ........................................ 8 2. WIRING DIAGRAM ....................................................................................
Page 3 - WARNING; SAFETY CAUTION
3 Before troubleshooting or repair work, check the earth wire is connected to the earthterminals of the main unit, otherwise an electric shock is caused when a leak occurs.If the ear th wire is not correctly connected, contact an electric engineer for rework. Do not modify the products.Do not also d...
Page 4 - Be sure to put on gloves (; ) Heavy gloves such as work gloves
4 After repair work, surely assemble the disassembled parts, and connect and lead theremoved cables as before. Perform the work so that the cabinet or panel does notcatch the inner cables.If incorrect assembly or incorrect cable connection was done, a disaster such as a leak orfire is caused at user...
Page 5 - Safety Caution Concerned to New Refrigerant; Use the flare nuts which are attached to the air conditioner unit.
5 • 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 ofrefrigerant, th...
Page 6 - (Note 2) Charging cylinder for R410A is being currently developed.
6 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 conventi...
Page 7 - Recharge of Refrigerant; Never charge the refrigerant over the specified amount.; Connect the charge hose to vacuum pump adaptor.
7 5. Recharge of Refrigerant When recharge of the refrigerant is required, charge the new refrigerant with the specified amount in theprocedure as described below. Q Never charge the refrigerant over the specified amount. R Do not charge the additional refrigerant.If charging refrigerant additionall...
Page 9 - DP; for Indoor unit
9 BLK P301 Fan motorIndoor temp. sensorTemp. sensorTemp. sensorTemp. sensorLouver motorDrain pump motorFloat switchDrain control relayPulse motor valve Symbol FM TA TC1TCJTC2 LM1, LM2 DP FS RY302 PMV Parts name Color indication RED : REDWHI : WHITEYEL : YELLOWBLU : BLUEBLK : BLACKGRY : GRAYPNK : PIN...
Page 10 - Model; Air outlet/Air outlet flap; The clip is to open/close the air inlet grille.; Air inlet grille; Air in the room is sucked from here.; Earth screw; It is included in the electric parts box.
10 3. PARTS RATING 3-1. Parts Rating Model MMU- Fan motor Motor for horizontal grille Pulse motor Pulse motor valve TA sensor TC1 sensor TC2 sensor TCJ sensor Float switch Drain pump motor AP0071MH AP0091MH AP0121MH AP0151MH AP0181MH SWF-230-60-1R MP24Z3N EDM-MD12TF-3 EDM-B25YGTF-3 EDM-B40YGTF-3 Lea...
Page 11 - Display section
11 1 SET DATA display Displayed during setup of the timer. 2 Operation mode select display The selected operation mode is displayed. 3 CHECK display Displayed while the protective device works or atrouble occurs. 4 Timer time display Time of the timer is displayed. (When a troubleoccurs, the check c...
Page 12 - Operation section; Remote controller sensor
12 Operation section Push each button to select a desired operation. This remote controller can operate the maximum 8 indoor units. • The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing ON / OFF button only. 1 Air volume select button Selects t...
Page 13 - Preparation; Turn on the main power switch and/or the leakage breaker.; REQUIREMENT; Select air volume with “FAN; Determine the set up temperature by pushing the “TEMP.; Stop; Push; Cooling only model
13 3-4. Correct Usage When you use the air conditioner for the first time or when you change the SET DATA value, follow the proce-dure below. From the next time, the operation displayed on the remote controller will star t by pushing the ON / OFF button only. Preparation Turn on the main power switc...
Page 14 - Start; button; NOTE; When restarting the operation after stop
14 1 2 3 ON / OFF FAN TEMP. SWING/FIX TIME MODE VENT UNIT SET CL FILTERRESET TEST TIMER SET 3-5. Automatic Operation (Super Heat Recovery Type Only) When you set the air conditioner in mode or switch over from AUTO operation because of some settings change, it will automatically select either coolin...
Page 15 - Timer operation; Push TIMER SET button.; to select “SET TIME”.; Cancel of timer operation
15 3-6. TIMER Operation A type of timer operation can be selected from the following three types. OFF timer : The operation stops when the time of timer has reached the set time. Repeat OFF timer : Every time, the operation stops after the set time has passed. ON timer : The operation star ts when t...
Page 16 - cally directs upward.; How to set up the air direction; In FAN operation; No display; Every pushing the button, the air direction changes.; In Heating operation; How to start swinging; How to stop swinging; Initial setup
16 3-7. Adjustment of Wind Direction • While the air conditioner stops, the horizontal flap (Up/Down air direction adjustment plate) automati- cally directs upward. • While the air conditioner is in ready status for heating, the horizontal flap (Up/Down air direction adjustment plate) directs upward...
Page 17 - In cooling operation
17 3-8. Information Confirmation before operation • Turn on the power switch 12 hours before star ting the operation. • Make sure whether ear th wire is connected. • Make sure the air filter is connected to the indoor unit. Heating capacity • A heat pump system which absorbs heat from outside of the...
Page 18 - -9. Air Conditioner Operations and Performance; Power failure during operation will stop the unit completely.; CAUTION
18 3-9. Air Conditioner Operations and Performance 3 minutes protection function 3-minutes protection function prevents the air conditioner from star ting for initial 3 minutes after the main powerswitch/circuit breaker is turned on for re-starting the air conditioner. Power failure Power failure du...
Page 19 - -10. When the Following Symptoms are Found; Check the points described below before asking repair servicing.; It is not a failure; • Activation of switch is unstable.
19 3-10. When the Following Symptoms are Found Check the points described below before asking repair servicing. Symptom Outdoor unit • White misty cold air or water is out. • Sometimes, noise “Pushu !” is heard. Indoor unit • “Swish” sound is heard sometimes. • Slight “Pishi!” sound is heard. • Disc...
Page 20 - Accessory parts and Parts to be procured locally; Accessory parts; Refrigerant piping; PRECAUTIONS FOR SAFETY
20 Accessory parts and Parts to be procured locally H Accessory parts Refrigerant piping • Piping material used for the conventional refrigerant cannot be used. • Use copper pipe only with a wall thickness of 0.8 mm or more for Ø6.4, Ø9.5, Ø12.7. • Flare nut and flare operations are also different f...
Page 21 - SELECTION OF INSTALLATION PLACE; Ceiling height
21 • Install the air conditioner securely in a location where the base can sustain the weight of the unit adequately. • Perform the specified installation work to guard against an earthquake. If the air conditioner is not installed appropriately, accidents may occur due to the unit falling. • If ref...
Page 22 - In case of wireless type; INSTALLATION OF INDOOR UNIT; Dimensional view
22 In case of wireless type The wireless remote controller can be operated up to amaximum of 8 m from the infra-red receiver. Therefore ensure that the remote controller will bemounted and used within this stated parameter. • To prevent malfunction do not mount or operate in a location that is subje...
Page 24 - DRAIN PIPING WORK; Pipe material/Insulator and size; GOOD; Connection of flexible hose; OK; Connection of drain pipe
24 4 DRAIN PIPING WORK REQUIREMENT • Ensure insulating of the drain pipes and connecting parts on the indoor units. • The drain pipe should have a downward slope of at least 1/100 and ensure there are no swells or blockages as this will cause abnormal sounds. • The maximum traverse length of drain p...
Page 25 - Thermal insulating process; REFRIGERANT PIPING; Permissible pipe length and permissible height difference; Flaring; NO GOOD
25 Thermal insulating process • After checking of the draining, using the supplied thermal insulation fit to the flexible hose leaving no clearance at the connecting port of the indoor unit. • Fit locally procured thermal insulation to the drain pipe leaving no clearance between the supplied insulat...
Page 26 - Connection of refrigerant pipe; ELECTRIC WORK
26 Set notching upward. Main unit Pipe side(Required at the site) Attached heat insulating pipe Work using double spanner • Projection margin in flaring : B (Unit : mm) Rigid (Clutch type) Imperial (Wing nut type) Connection of refrigerant pipe Connect all the refrigerant pipes with the flareconnect...
Page 27 - Power supply specifications; Indoor unit power supply; Cable connection
27 Power supply specifications Power supply wiring and communication wiring are to be procured locally. For the power supply specification, follow the table below. Ensure power supply is adequate. An insufficient powersupply could result in unit failure. For specification of the power capacity of th...
Page 28 - Remote controller wiring; Wiring between indoor and outdoor units; Address setup; APPLICABLE CONTROLS; NOTIFICATION; Applicable control setup
28 Remote controller wiring • Strip approximately 14 mm of insulation off of the connecting wires. • As the remote controller wire has no polarity, there is no problem if connections to indoor unit terminal blocks A and B are reversed. Wiring diagram Wiring between indoor and outdoor units NOTE An o...
Page 29 - In case of installation to high ceiling; Change of lighting time of filter sign
29 In case of installation to high ceiling When the unit is to be installed at a height that exceeds the standard value, adjustment to the air volume isnecessary. • For the “Setup data” in Procedure 2 , select from the “Installable ceiling height list”. Installable ceiling height list • Select setti...
Page 30 - In case of wired remote controller; How to execute test operation; TEST RUN; Before test operation; In case of wireless remote controller
30 NOTE Do not use a forced operation in cases otherthan test operation because it applies anexcessive load onto the air conditioner. In case of wired remote controller 1, 5 3 2, 4 ON / OFF FAN TEMP. SWING/FIX TIME MODE VENT UNIT SET CL FILTERRESET TEST TIMER SET How to execute test operation • To c...
Page 31 - TROUBLESHOOTING; Confirmation and check; Check method; Terminology
31 9 TROUBLESHOOTING Confirmation and check When a fault occurs in the air conditioner, the checkcode and the indoor unit No. will appear on the displaypart of the remote controller. The check code will only be displayed while the unit isin operation. If the display disappears, operate the air condi...
Page 33 - MAINTENANCE; Daily maintenance
33 New check code 1. Difference between the new check code and the current system The displaying method of the check code will change from this model onwards. Display on wired remote controller • [ ] goes on. • [UNIT No.] + Check code + Operation lamp (Green) flash Display on sensor part of wireless...
Page 34 - REFRIGERATING CYCLE DIAGRAM; Functional part name
34 4. REFRIGERATING CYCLE DIAGRAM Air heat exchanger at indoor side Fan M Fan motor Sensor (TA) Sensor (TC1) Gas side Liquid side Strainer Capillary tube Pulse Motor Valve (PMV) Strainer Sensor (TCJ) Sensor (TC2) Functional part name Pulse Motor Valve PMV Temp. sensor 1. TA 2. TC1 3. TC2 4. TCJ Func...
Page 39 - Execute the setup operation while the unit stops.; In this time, the fan of the selected indoor unit is turned on.
39 6. APPLIED CONTROL 6-1. Setup of Selecting Function in Indoor Unit (Be sure to Execute Setup by a Wired Remote Controller) <Procedure> Execute the setup operation while the unit stops. 1 Push SET , CL , and TEST buttons simultaneously for 4 seconds or more. The firstly displayed unit No. in...
Page 41 - Type; Remote location ON/OFF control box
41 TYPE Item code [10] Indoor unit capacity Item code [11] Type Compact 4-way Air Discharge Cassette AbbreviatedModel name MMU-AP XXX MH Setup data 0001 0003 0005 0007 0009 Model 007 009 012 015 018 Setup data 0014 6-2. Applied Control in Indoor Unit n Remote location ON/OFF control box (TCB-IFCB-4E...
Page 42 - Ventilating fan control from remote controller; Available; FAN DRIVE; Note) Determine the cable length between the
42 n Ventilating fan control from remote controller [Function] • The star t/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. • Use a fan wh...
Page 43 - Leaving-ON prevention control; Power peak-cut from indoor unit; Power supply
43 n 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 item code - is set to the c...
Page 44 - Before troubleshooting; S-MMS Multi type models; Troubleshooting procedure; Trouble; Operation
44 7. TROUBLESHOOTING 7-1. Troubleshooting Summary 1. Before troubleshooting 1) Applied models Q S-MMS Multi type models Indoor unit: MMX-APXXX,Outdoor unit: MMY-MAPXXXHT8, MMY-MAPXXXT7 R Super Heat Recovery Multi type models Indoor unit: MMX-APXXX,Outdoor unit: MMY-MAPXXXFT8 S Mini-S-MMS Multi type...
Page 45 - Check code list; IPDU: Intelligent Power Drive Unit
45 7-2. Check Method On the remote controller (Main remote controller, Central control remote controller) and the interface P.C. boardof the outdoor unit, a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C.board) to display the operation is provided. Therefore...
Page 48 - The check code; The TCC LINK check code; The displaying method of the check code.; TCC Link; ; • Block display of combination of [; Display
48 The check code 1. The TCC LINK check code The displaying method of the check code. Used characters Characteristics ofcode classification Block display TCC Link Alphabet + Decimal notation, 2 digits Many classification of communication/incorrect setup system Communication/Incorrect setup (4 ways),...
Page 49 - -3. Troubleshooting by Check Display on Remote Controller; Confirmation and check
49 7-3. Troubleshooting by Check Display on Remote Controller In case of wired remote controller (RBC-AMT31E) CODE No. UNIT No. R.C. No. Check code Indoor unit No. in which an error occurred 3 2 1 ON / OFF FAN TEMP. SWING/FIX TIME MODE VENT UNIT SET CL FILTERRESET TEST TIMER SET Procedure 1 2 3 Desc...
Page 50 - Alternate flashing display; Unit No display; Confirmation of error history
50 In case of central remote controller (TCB-SC642TLE) 1. Confirmation and check When a trouble occurred on the air conditioner, the check code and the indoor unit No. are displayed on thedisplay section of the remote controller. The check code is displayed while the air conditioner operates. If the...
Page 64 - Measured position; Between Red and White; Criteria; How to check resistance of compressor winding
64 Cautions when servicing for compressor 1. Removing wires of both compressors check output of the inver ter as described below. How to check inverter output 1. Turn off the power supply. 2. Remove the compressor lead cables from the compressors. (Be sure to remove lead cables of both compressors.)...
Page 65 - -5. Diagnosis Procedure for Each Check Code
65 7-5. Diagnosis Procedure for Each Check Code Check code [E01] Check code name Communication error between indoor and remote controller (Detected at remote controller side) Cause of operation 1. Remote controller inter-unit cable error 2. Indoor power error 3. Indoor P.C. board error 4. Remote con...
Page 89 - Check procedure in case of stop with trouble; The check code is displayed at the right side of 7-segment display B.; How to read the check monitor
89 7-6. 7-Segment Display Function n 7-segment display on the outdoor unit (Interface P.C. board) On the interface control P.C. board, 7-segment LED to check the operating status is provided on the control P.C.board. The displayed contents are changed by combining the setup numbers of the rotary swi...
Page 90 - mark: Indicates none on display; Display contents
90 1. Data display of system information (Displayed on the header outdoor unit only) ∗ mark: Indicates none on display SW01 1 SW02 1 2 3 4 5 6 7 8 9 SW03 3 Display contents Refrigerant name Displays refrigerant name. A B Model with refrigerant R410A r4 10A Model with refrigerant R407C r4 07C System ...
Page 92 - Data display of outdoor cycle (Displayed on each outdoor unit); NOTE) Indoor address No. is chosen by changing SW02 and SW03.; Indoor address
92 3. Data display of outdoor cycle (Displayed on each outdoor unit) SW01 1 SW02 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SW03 2 Display contents Pd pressure data Pd pressure (MPaG) is displayed with decimal data.(MPaG: Approx. 1/10 value of kg/cm 2 G data) Ps pressure data Ps pressure (MPaG) is displ...
Page 93 - Indoor Unit; Temperature sensor characteristics; Indoor TA sensor; The latest error code of the header unit 1 (U1)
93 5. Outdoor EEPROM write-in error code display (Displayed on the header unit only) ∗ The latest error code written in EEPROM of each outdoor unit is displayed.(It is used when confirming the error code after power supply has been reset.) Set SW01 to 03 as shown in the following table, and the push...
Page 94 - Indoor Contr; y Air Disc; Weekly timer
94 8.CONFIGURA TION OF CONTR OL CIRCUIT 8-1. Indoor Unit 8-1-1. Indoor Contr oller Bloc k Dia gram Compact 4-wa y Air Disc har g e Cassette T ype 1.Connection of wired remote contr oller Sameas left *2 Sameas left *2 #3 A B #2 A B L U1 U2 N Power supply Outdoor unit L U1 U2 N Power supply Outdoor un...
Page 95 - *1 However in a case that the network adaptor is installed
95 2.Connection of wireless remote contr oller kit Compact 4-wa y Air Disc har g e Cassette T ype Emergent operation SW CPU CPU H8/3039 Driver L A B N U1 U2 U1 U2 Sameas left *2 #3 A B L U1 U2 N Power supply Outdoor unit Sameas left *2 #2 A B L U1 U2 N Power supply Outdoor unit Network adaptor (Opti...
Page 99 - Hook hole of ceiling panel
99 9. DETACHMENTS 9-1. Indoor Unit MMU-AP0071MH, AP0091MH, AP0121MH, AP0151MH, AP0181MH Ceiling panel: RBC-UM11PG-E Preparing work: 1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply breaker. (Otherwise an electric shock may be caused.) 2....
Page 100 - Push to remove
100 No. 3 Part name Adjustcorner cover Procedure 1. Detachment 1) Perform work of procedure of 1 -1. 2) Turn clockwise screws (4 positions) at the suction por t corner until adjust cornercover rises up. NOTE) When you work, keep the torque at below 12N•m.Do not use an electric screwdriver ; otherwis...
Page 101 - ) Perform works of procedure; Details of fan motor lead wire drawing; Details of PMV lead wire drawing; Arrow view
101 No. 5 Part name Control P.C.board Procedure Remarks 1. Detachment 1) Perform works of procedure 1 -1- and 2 -1. 2) Remove the connectors connected from the control P.C. board to other par ts. CN33 : Flap motor (5P, White)CN34 : Float switch (3P, Red)CN41 : Terminal block of remote controller (3P...
Page 103 - Fan guard
103 No. 7 Part name Fan guard Procedure 1. Detachment 1) Perform work of procedure 1 -1. 2) Take off screws fixing the fan guard. (Ø4 × 10, [Screws for plastic molding] 4 pcs.) NOTE) The specification of fixing screws for the fan guarddiffers from those of other fixing screws.Therefore keep them sep...
Page 106 - Arrow view B; Details of A part
106 No. 13 Part name PMV(Pulse Motor Valve) Procedure 1. Detachment 1) Perform work of procedure 11 -1. 2) Take off screws (Ø4 × 10, 3 pcs.) fixing the piping cover to remove the pipingcover. 3) Cut off binding band that binds the PMV lead wires. 4) Peel butyl rubber of PMV a little and remove PMV m...
Page 107 - fixing screws for heat exchanger
107 No. 14 Part name Heatexchanger Procedure 1. Detachment 1) Recover refrigerant gas. 2) Remove the refrigerant pipe at indoor unit side. 3) Perform work of procedure 11 -1. 4) Take off screws (Ø4 × 10, 3 pcs.) fixing the piping cover to remove the piping cover. 5) While holding the heat exchanger,...
Page 108 - Readout of EEPROM data: Procedure 1
108 10. P.C. BOARD EXCHANGE PROCEDURES 10-1. Exchange of P.C. Board for Indoor Service Part code 431-6V-269 Model type MMU-AP ✻✻ ✻✻ ✻✻ ✻✻ ✻✻ 1H series MMU-AP ✻✻ ✻✻ ✻✻ ✻✻ ✻✻ 1MH series MMC-AP ✻✻ ✻✻ ✻✻ ✻✻ ✻✻ 1H series MMK-AP ✻✻ ✻✻ ✻✻ ✻✻ ✻✻ 1H series MMD-AP ✻✻ ✻✻ ✻✻ ✻✻ ✻✻ 1SPH/SH series MMU-AP ✻✻ ✻✻ ✻✻...
Page 109 - Method 2; Procedure 1 : Readout setup contents from EEPROM; DN; Item code necessary at minimum
109 Method 2 Before exchange, it is impossible to read out the setup contents due to EEPROM error. Exchange of P.C. board for service & power ON: Procedure 2 ò Writing-in of the setup data such as the model name, capacity code, indoor unit address high ceiling setup, connection setup of option, ...
Page 110 - When the above methods cannot be used, follow to the two cases below.; b) Turn on power of the indoor units and proceed to Procedure 3.
110 Procedure 2 : Exchange of P.C. board for service 1. Exchange P.C. board with a P.C. board for service. In this time, the jumper line (cut) setup or the (shor t-circuit) connecting connector setup on the previous P.C.board should be reflected on P.C. board for service. (See the blow figures.) 2. ...
Page 111 - Procedure 3 : Writing-in of setup contents to EEPROM; Procedure 1 and customer’s information.
111 Procedure 3 : Writing-in of setup contents to EEPROM (The EEPROM contents which are installed on the service P.C. board have been set up at shipment from the factory.) 1. Push SET + CL + TEST buttons simultaneously for 4 seconds or more. 1 ( is displayed in the UNIT No box.) In this time, is dis...
Page 113 - EXPLODED VIEWS AND PARTS LIST; Air Filter; Location; Louver
113 11. EXPLODED VIEWS AND PARTS LIST 11-1. Ceiling Panel RBC-UM11PG(W)E Location Part No. Description No. 301 43109414 Grille, Air Inlet 302 4302C059 Motor, Louver 303 43180332 Air Filter 304 43497012 Screw 305 43100322 Cover, Panel Ass’y 306 43107259 Grille, Catch 307 43122089 Cover, Joint (For Jo...
Page 117 - TOSHIBA CARRIER CORPORATION; Copyright © 2005 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.
TOSHIBA CARRIER CORPORATION 2 CHOME 12-32, KONAN, MINATOKU, TOKYO, 108-0075, JAPAN Copyright © 2005 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.
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