AIR-CONDITIONER SERVICE MANUAL (MULTI TYPE) R410A PRINTED IN JAPAN, Aug., 2015 ToMo. <High Static Ducted Type> MMD- AP0724H2UL MMD- AP0964H2UL

Transcription

1 FILE N. A0-506 SERVICE MANUAL AIR-CNDITINER (MULTI TYPE) <High Static Ducted Type> MMD- AP0724H2UL MMD- AP0964H2UL R40A PRINTED IN JAPAN, Aug., 205 ToMo

2 CNTENTS SAFETY CAUTIN SPACIFICATINS CNSTRUCTIN VIEWS (EXTERNAL VIEWS) WIRING DIAGRAM PARTS RATING FAN CHARACTERISTIC REFRIGERATING CYCLE DIAGRAM CNTRL UTLINE APPLIED CNTRL AND FUNCTIN TRUBLESHTING DETACHMENTS P. C. BARD EXCHANGE PRCEDURES EXPLDED VIEWS AND PARTS LIST... 80

3 SAFETY CAUTIN The important contents concerned to the safety are described on the product itself and on this Service Manual. Please read this Service Manual after understanding the described items thoroughly in the following contents (Indications/Illustrated marks), and keep them. The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. [Explanation of indications] Indication DANGER WARNING CAUTIN Explanation Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed. Indicates possibilities assumed that a danger causing a death or serious injury of the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed. Indicates contents assumed that an injury or property damage ( ) may be caused on the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed. Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet [Explanation of illustrated marks] Mark Explanation Indicates prohibited items (Forbidden items to do) The sentences near an illustrated mark describe the concrete prohibited contents. Indicates mandatory items (Compulsory items to do) The sentences near an illustrated mark describe the concrete mandatory contents. Indicates cautions (Including danger/warning) The sentences or illustration near or in an illustrated mark describe the concrete cautious contents. [Confirmation of warning label on the main ] Confirm that labels are indicated on the specified positions (Refer to the Parts disassembly diagram (utdoor ).) If removing the label during parts replace, stick it as the original. DANGER Turn off breaker. Execute discharge between terminals. Turn FF the breaker before removing the front panel and cabinet, otherwise an electric shock is caused by high voltage resulted in a death or injury. During operation, a high voltage with 400V or higher of circuit ( ) at secondary circuit of the high-voltage transformer is applied. If touching a high voltage with the naked hands or body, an electric shock is caused even if using an electric insulator. :# For details, refer to the electric wiring diagram. When removing the front panel or cabinet, execute short-circuit and discharge between high-voltage capacitor terminals. If discharge is not executed, an electric shock is caused by high voltage resulted in a death or injury. After turning off the breaker, high voltage also keeps to apply to the high-voltage capacitor. Do not turn on the breaker under condition that the front panel and cabinet are removed. An electric shock is caused by high voltage resulted in a death or injury. Prohibition 3

4 WARNING Check earth wires. Prohibition of modification. Use specified parts. Do not bring a child close to the equipment. Insulating measures No fire Refrigerant Assembly/Cabling Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main, otherwise an electric shock is caused when a leak occurs. If the earth wire is not correctly connected, contact an electric engineer for rework. Do not modify the products. Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury. For spare parts, use those specified ( ). If unspecified parts are used, a fire or electric shock may be caused. : For details, refer to the parts list. Before troubleshooting or repair work, do not bring a third party (a child, etc.) except the repair engineers close to the equipment. It causes an injury with tools or disassembled parts. Please inform the users so that the third party (a child, etc.) does not approach the equipment. Connect the cut-off lead wires with crimp contact, etc, put the closed end side upward and then apply a water-cut method, otherwise a leak or production of fire is caused at the users side. When repairing the refrigerating cycle, take the following measures. ) Be attentive to fire around the cycle. When using a gas stove, etc, be sure to put out fire before work; otherwise the oil mixed with refrigerant gas may catch fire. 2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide poisoning may be caused. 3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the inflammables. Check the used refrigerant name and use tools and materials of the parts which match with it. For the products which use R40A refrigerant, the refrigerant name is indicated at a position on the outdoor where is easy to see. To prevent miss-charging, the route of the service port is changed from one of the former R22. Do not useany refru\igerant different from the onespecified for complement or replacement. therwise, abnormally high pressuremay be generated in the refrigeration cycle, which may result in a failure or explosion of the product or an injury to your body. For an air conditioner which uses R40A, never use other refrigerant than R40A. For an air conditioner which uses other refrigerant (R22, etc.), never use R40A. If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused. Do not charge refrigerant additionally. If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury. Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming, and then newly recharge the specified amount of liquid refrigerant. In this time, never charge the refrigerant over the specified amount. When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than R40A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating cycle resulted in cause of injury due to breakage. After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous. Never recover the refrigerant into the outdoor. When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device. The refrigerant cannot be recovered in the outdoor ; otherwise a serious accident such as breakage or injury is caused. After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused at user s side. 4

5 WARNING Insulator check Ventilation Be attentive to electric shock Compulsion Check after repair After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistance is 2MΩ or more between the charge section and the non-charge metal section (Earth position). If the resistance value is low, a disaster such as a leak or electric shock is caused at user s side. 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. When checking the circuit inevitably under condition of the power-n, use rubber gloves and others not to touch to the charging section. If touching to the charging section, an electric shock may be caused. When you access inside of the service panel to repair electric parts, wait for about five minutes after turning off the breaker. Do not start repairing immediately. therwise you may get electric shock by touching terminals of high-voltage capacitors. Natural discharge of the capacitor takes about five minutes. When the refrigerant gas leaks, find up the leaked position and repair it surely. If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten the service valve, otherwise the refrigerant gas may leak into the room. The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous. When installing equipment which includes a large amount of charged refrigerant such as a multi air conditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks. If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused. For the installation/moving/reinstallation work, follow to the Installation Manual. If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused. After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock or injury may be caused. For a check, turn off the power breaker. After repair work (installation of front panel and cabinet) has finished, execute a test run to check there is no generation of smoke or abnormal sound. If check is not executed, a fire or an electric shock is caused. Before test run, install the front panel and cabinet. Check after reinstallation Check the following items after reinstallation. ) The earth wire is correctly connected. 2) The power cord is not caught in the product. 3) There is no inclination or unsteadiness and the installation is stable. CAUTIN Put on gloves Cooling check Be sure to put on the gloves ( ) and a long sleeved shirt: otherwise an injury may be caused with the parts, etc. ( ) Heavy gloves such as work gloves When the power was turned on, start to work after the equipment has been sufficiently cooled. As temperature of the compressor pipes and others became high due to cooling/heating operation, a burn may be caused. 5

6 Refrigerant (R40A) This air conditioner adopts HFC type refrigerant (R40A) which does not deplete the ozone layer.. Safety Caution Concerned to Refrigerant (R40A) The pressure of R40A is high.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with refrigerant (R40A) during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusive to R40A to purpose a safe work. 2. Cautions on Installation/Service ) Do not mix the other refrigerant or refrigerating oil. For the tools exclusive to R40A, shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them. 2) As the use pressure of the refrigerant (R40A) is high, use material thickness of the pipe and tools which are specified for R40A. 3) In the installation time, use clean pipe materials and work with great attention so that water and others do not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes. Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.) 4) For the earth protection, use a vacuum pump for air purge. 5) R40A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the refrigerant changes and then characteristics of the air conditioner change.) 3. Pipe Materials For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a minimum. ) Copper pipe <Piping> The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type. When using a long copper pipe for R40A, it is recommended to select Copper or copper-base pipe without seam and one with bonded oil amount lbs / 32 0 (40mg / 0m) or less. Also do not use crushed, deformed, discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.) <Flare nut> Use the flare nuts which are attached to the air conditioner. 2) Joint The flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installation of the air conditioner. However clear impurities when using them. 6

7 4. Tools. Required Tools for R40A 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. ) Tools exclusive for R40A (Those which cannot be used for conventional refrigerant (R22)) 2) Tools exclusive for R40A, but can be also used for conventional refrigerant (R22) 3) Tools commonly used for R40A and for conventional refrigerant (R22) The table below shows the tools exclusive for R40A and their interchangeability. Tools exclusive for R40A (The following tools for R40A are required.) Tools whose specifications are changed for R40A and their interchangeability R40A air conditioner installation Conventional air conditioner installation No. Used tool Usage Whether conven- tional equipment can be used Existence of new equipment for R40A Whether conventional equipment can be used Flare tool Pipe flaring Yes *(Note) Yes Copper pipe gauge for adjusting projection margin Flaring by conventional flare tool Yes *(Note) *(Note) Torque wrench Tightening of flare nut Yes No No Gauge manifold Charge hose Evacuating, refrigerant charge, run check, etc. Yes No No Vacuum pump adapter Vacuum evacuating Yes No Yes Electronic balance for refrigerant charging Refrigerant charge Yes Yes Yes Refrigerant cylinder Refrigerant charge Yes No No Leakage detector Gas leakage check Yes No Yes (Note) When flaring is carried out for R40A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary. General tools (Conventional tools can be used.) In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools. ) Vacuum pump. Use vacuum pump by attaching vacuum pump adapter. 7) Screwdriver (+, ) 2) Torque wrench 8) Spanner or Monkey wrench 3) Pipe cutter 9) Hole core drill 4) Reamer 0) Hexagon wrench (pposite side 4mm) 5) Pipe bender ) Tape measure 6) Level vial 2) Metal saw Also prepare the following equipments for other installation method and run check. ) Clamp meter 3) Insulation resistance tester (Megger) 2) Thermometer 4) Electroscope 7

8 Concealed Duct High Static Pressure Type. SPACIFICATINS Model name MMD- AP0724H2UL AP0964H2UL Cooling Capacity kbtu/h Heating Capacity kbtu/h 8 08 Electrical Power supply 230V(208/230V) phase 60Hz charastaristics Power consumption(208v / 230V) kw.37 / /.63 Appearance Zinc hot dipping steel plate Height In 8.5 Unit Width In 54.3 Dimension Depth In 49.2 Height In 24.0 Packing Width In 6.8 Depth In 55.3 Total weight Unit lbs 362 Packed lbs 47 Heat exchanger Finned tube Fan Centrifugal fan Standard air flow cfm Motor output W Fan External static pressure (*) Factory setting (208/230V) In WG / / V(High / Mid / Low) (*3) In WG V(High / Mid / Low) (*3) In WG Air flow limt Lower limit cfm Upper limit cfm Air filter Gas side In Connecting pipe Liquid side In Drain port (Nominal dia.) In Sound puressure level (*2) 208V(High / Mid / Low) (*3) db(a) 230V(High / Mid / Low) (*3) db(a) Field supply 7/8" /2" VP25(Polyvinyl chloride tube: External Dia.-/4 Internal Dia.) 5 / 49 / / 5 / 50 Note (*) Non attached filter (*2) The actual values in an external opeating environment are generally higher than the indicated values due to the contribution from ambient noise. (*3) The tap is set by wire connection change of fan motor. 8

9 2. CNSTRUCTIN VIEWS ³ (EXTERNAL VIEWS) Space required for installation or service work Check port 23.6"(600) Service space Service space Distance from building Check port <Note>. Indoor does not have air filter its inside. So be sure to set an air filter(local arrangements) in the position maintained easily such as a suction grills. (If there is no air filter, dusts are blocked in the air heat exchanger and it may cause failure or water leak in air-conditioner.) 2. Leave sufficient space to remove the air filter when you attach it. Attention Be sure to set the plug and to make it to be able to cleaning, because garbage in drain piping piles up easily in drain trap. Plug (Check and cleaning port) Check panel Hole for hanging bolt (4-Ø/2"(2) 3.6"(92)) Screw hole for duct mounting(7-m5) Screw hole for duct mounting(7-m5) Electric parts box Refrigerant pipe connecting port (Liquid side Ø/2"(2.7) Flared) Air discharge port Ø"(26) Hole for control wire and remote control wiring Ø7/8"(22.2) Hole for power supply cable Drain pipe connecting port(v25) Taper screw for R,"(25.4) pipes Z Air suction port Refrigerant pipe connecting port (Gas side Ø7/8"(22.2) Brazed) Screw hole for duct mounting (6-M5) Screw hole for duct mounting (6-M5) Z view Unit:in(mm) 9

10 3. WIRING DIAGRAM Symbol 43F,F2,F3 CN** F,2,3 F30 FM PMV RC RY002 RY005,006,007 TA TB0,02,03 04,05,06 TC,TC2,TCJ TR Parts Name Fan motor Control Relay Connector Fuse for Fan Motor Fuse Fan Motor Pulse Motor Valve Running Capacitor Drain Control Relay Fan Motor Control Relay Indoor temp sensor Terminal Block Temp sensor Transformer CLR IDENTIFICATIN RED : RED WHI : WHITE YEL : YELLW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK RN : RANGE BRW : BRWN GRN : GREEN RED 43F3 Spark killer 43F Spark killer 43F2 Spark killer WHI RED WHI RED WHI 7 RED WHI TB03 TB03 6 Line Filter BLK RED P30 CN304 GRY CN67 BLK CN66 WHI CN40 BLU F30 T5A 250V 3 CN4 BLU CN309 YEL RY004 CN83 WHI RY007 CN50 WHI MCC CN82 BLU RY006 CN75 WHI RY005 Control P.C. Board for Indoor Unit Power supply circuit M PMV RY CN WHI CN68 BLU RY00 CN7 CN72 3 CN6 YEL CN33 GRN (CHK) (DISP) CN32 WHI CN30 3 RED 2 2 CN04 YEL CN02 RED 2 CN0 BLK CN00 BRW CN80 GRN 2 3 CN73 RED 2 CN70 WHI CN8 BLK CN60 WHI t TA t TCJ t TC2 t PNL EXCT FILTER TC.Broken line indicate the wiring at site. Long dashed short dashed line indicate the accessories. indicates the terminal block. indicates the connection terminal. indicates the connector on the control P.C. board. 2. indicates the protection ground. 3. indicates the control P.C. board. 4. A position is connected to terminal block when change to static pressure. exchange the lead wire of arrow( ) position after check the terminal number as figure and lead wire's color of fan motor. Flow selector Earth screw Indoor Earth screw RED TB0 WHI WHI 8 TB03 RED RED utdoor U U2 A B U U2 A B F 0A F2 0A RED RED RED F3 0A RED BLU BLU BLK BLK 43F2 TB02 Remote controller 5 RN TB03 43F3 43F2 TR CN02 YEL Sub P.C. Board MCC-520 CN0 WHI RN 43F3 T0 Fan motor inside wiring diagram BLK WHI GRY RED FAN DRIVE 49F PTIN Motor over heating protection switch 43F RN BLU RN BRW 43F Power supply 208/ RED RC WHI GRY P RED FAN3 A F F2 YEL BLU RN F3 TB04 F4 RED WHI 2 RC GRY 4P A 34 BLU YEL FAN2 F F2 F3 F4 BLU RN TB05 RED WHI 2 RC GRY 4P 34 WHI FAN A YEL F BLU F2 RN F3 TB06 F4 MS FM3 MS FM2 MS FM 0

11 4. PARTS RATING Model MMD- AP0724H2UL AP0964H2UL Fan motor Running condenser for fan motor Pulse motor Pulse motor valve TA sensor Lead wire TC sensor TC2 sensor TCJ sensor STF AR AC 450 V, 2 μf EDM-MD2TF-3 EDM-BAYGTF- length: 88 mm Ø4 size lead wire length: 2000 mm Vinyl tube (Blue) Ø6 size lead wire length: 2000 mm Vinyl tube (Black) Ø6 size lead wire length: 2000 mm Vinyl tube (Red)

12 5. FAN CHARACTERISTIC MMD-AP0724H2UL Power source: 230 V / 60 Hz Power source: 208 V / 60 Hz tap External static pressure Standard air flow rate tap External static pressure Standard air flow rate (in.wg) (cfm) (in.wg) (cfm) High.22 High Middle Middle Low Low Fan motor current (A) External static pressure (in.wg)e Air flow rate (cfm) Air flow rate lower limit Air flow rate lower limit Since external static pressure value is big, it cannot be applied. High tap Middle tap Low tap High tap Middle tap Low tap Air flow rate upper limit Air flow rate upper limit Fan motor current (A) External static pressure (in.wg)e Air flow rate (cfm) Air flow rate lower limit Air flow rate lower limit High tap Middle tap Low tap High tap Middle tap Low tap Air flow rate upper limit Air flow rate upper limit Air flow rate (cfm) Air flow rate (cfm) 2

13 MMD-AP0964H2UL Power source: 230 V / 60 Hz Power source: 208 V / 60 Hz tap External static pressure Standard air flow rate tap External static pressure (in.wg) (cfm) (in.wg) Standard air flow rate (cfm) High.099 High Middle Middle Low Low Fan motor current (A) External static pressure (in.wg)e Air flow rate (cfm) Air flow rate lower limit Air flow rate lower limit High tap Middle tap Low tap High tap Middle tap Low tap Air flow rate upper limit Air flow rate upper limit Fan motor current (A) External static pressure (in.wg)e Air flow rate (cfm) Air flow rate lower limit Air flow rate lower limit High tap Middle tap Low tap High tap Middle tap Low tap Air flow rate upper limit Air flow rate upper limit Air flow rate (cfm) Air flow rate (cfm) 3

14 Wire connection change of fan motor This duct is composed of 3 fan motors. To change external static pressure by duct resistance, connect the 3 connectors of the orange lead wires that are connected to the underside of the fan tap changing terminal block to the same number (F, F2 or F3) terminal. The wires of the fan motor has been connected to (F2) [External static pressure 4 mmaq (37 Pa)] as factory default. Low static pressure (F) FM FM FM YEL: Yellow BLU: Blue RG: range Fan motor Fan motor Fan motor YEL BLU RG YEL BLU RG YEL BLU RG F F2 F3 F4 F F2 F3 F4 F F2 F3 F4 RG FAN3 RG FAN2 RG FAN Standard (Middle) static pressure (F2) Fan tap changing terminal block Electrical control box Fan motor Fan motor Fan motor YEL BLU RG YEL BLU RG YEL BLU RG Control P.C. board 4P terminal block RG RG RG FAN3 FAN2 FAN 2P terminal block 3P terminal block High static pressure (F3) Fan motor Fan motor Fan motor YEL BLU RG YEL BLU RG YEL BLU RG RG FAN3 FAN2 FAN RG RG * Do not use F4. NTE Model name Voltage / Frequency Fan motor wiring Model name Voltage / Frequency Fan motor wiring Terminal block No. Wire color 230 V / 50 Hz External static pressure (in.wg) MMD-AP0724H2UL Wire color 208 V / 60 Hz External static pressure (in.wg) F Yellow Yellow F2 Blue Blue F3 range.22 range Terminal block No. Wire color 230 V / 50 Hz External static pressure (in.wg) MMD-AP0964H2UL Wire color 208 V / 60 Hz External static pressure (in.wg) F Yellow Yellow F2 Blue Blue 0.37 F3 range.099 range When the external static pressure is changed, write down the static pressure once change in the wiring diagram of the indoor is made. 4

15 6. REFRIGERATING CYCLE DIAGRAM Liquid side Gas side Strainer Capillary tube Air heat exchanger at indoor side Pulse Motor Valve (PMV) Sensor (TC2) Strainer Sensor (TCJ) Fan Sensor (TC) Sensor (TA) M Fan motor Functional part name Functional outline Pulse Motor Valve Temp. sensor PMV. TA 2. TC 3. TC2 4. TCJ (Connector CN082 (6P): Blue) ) Controls super heat in cooling operation 2) Controls under cool in heating operation 3) Recovers refrigerant oil in cooling operation 4) Recovers refrigerant oil in heating operation (Connector CN04 (2P): Yellow) ) Detects indoor suction temperature (Connector CN00 (3P): Brown) ) Controls PMV super heat in cooling operation (Connector CN0 (2P): Black) ) Controls PMV under cool in heating operation (Connector CN02 (2P): Red) ) Controls PMV super heat in cooling operation 5

16 7. CNTRL UTLINE No. Item utline of specifications Remarks When power supply is reset ) Distinction of outdoor When the power supply is reset, the outdoors are distinguished and the control is selected according to the distinguished result. 2) Setting of indoor fan speed and existence of air direction adjustment Based on EEPRM data, select setting of the indoor fan speed and the existence of air direction adjustment. 3) If resetting the power supply during occurrence of a trouble, the check code is once cleared. After N/FF button of the remote controller was pushed and the operation was resumed, if the abnormal status continues, the check code is again displayed on the remote controller. Air speed (rpm)/ Air direction adjustment 2 peration mode selection ) Based on the operation mode selecting command from the remote controller, the operation mode is selected. Remote controller command STP FAN DRY CL HEAT Control outline Air conditioner stops. Fan operation Drying operation Cooling operation Heating operation 3 Room temp. control ) Adjustment range: Remote controller setup temperature ( F [ C] ) CL/DRY HEAT Wired type 64 F [8 C] to 84 F [29 C] 64 F [8 C] to 84 C [29 C] Wireless type 64 F [8 C] to 86 F [30 C] 6 F [6 C] to 86 F [30 C] 2) Using the Item code 06, the setup temperature in heating operation can be corrected. Setup data Setup temp. Correction Setting at shipment F +3.6 F +7.2 F +0.8 F [+0 C] [+2 C] [+4 C] [+6 C] Shift of suction temperature in heating operation Except while sensor of the remote controller is controlled (Code No. [32], 000 ) Setup data 2 6

17 No. Item utline of specifications Remarks 4 Automatic capacity control ) Based on the difference between Ta and Ts, the operation capacity is determined by the outdoor. Ta F ( C) +3.6 (+2) CL SD Ta F ( C) +.8 (+) +.8 (+) SB S9 Ts Ts S7 S5.8 ( ).8 ( ) S3 S0 3.6 ( 2) HEAT S3 S0 S5 S7 S9 SB SD SF Ts: Setup temp. Ta: Room temp. 5 Air speed selection ) peration with (HH), (H), (L) or [AUT] mode is carried out by the command from the remote controller. 2) When the air speed mode [AUT] is selected, the air speed varies by the difference between Ta and Ts. HH > H+ > H > L+ > L > UL <CL> Ta F ( C) +5.4 (+3.0) +4.5 (+2.5) +3.6 (+2.0) +2.7 (+.5) +.8 (+.0) +0.9 (+0.5) Tsc 0.9 ( 0.5) HH <HH> H+ <HH> H <HH> L+ <H+> L <H> L <H> L <L+> A B C D E F G < > : Indicate automatic cooling. Controlling operation in case when thermo of remote controller works is same as a case when thermo of the body works. If the air speed has been changed once, it is not changed for 3 minutes. However when the air volume is exchanged, the air speed changes. When cooling operation has started, select a downward slope for the air speed, that is, the high position. If the temperature is just on the difference boundary, the air speed does not change. Code No : Body thermo. (Main ) 000: Remote controller thermo. 7

18 No. Item utline of specifications Remarks 5 Air speed selection (Continued) <HEAT> Ta F ( C) ( 0.9).8 [( 0.5).0] (0) Tsh (+0.9) +.8 [(+0.5) +.0] (+.8) +3.6 [(+.0) +2.0] (+2.7) +5.4 [(+.5) +3.0] (+3.6) +7.2 [(+2.0) +4.0] L <L+> L+ <H> H <H+> H+ <HH> HH <HH> E D C B A < > : Indicate automatic heating. Body thermostat works. Remote controller thermostat works. Value in the parentheses indicates one when thermostat of the remote controller works. Value without parentheses indicates one when thermostat of the body works. If the air speed has been changed once, it is not changed for minute. However when the air speed exchanged, the air speed changes. When heating operation has started, select an upward slope for the air speed, that is, the high position. If the temperature is just on the difference boundary, the air speed does not change. In TC2 40 F[60 C], the air speed increases by step. TC2: Indoor heat exchanger sensor temperature 6 Prevention of cold air discharge. In heating operation, the higher temperature of TC2 sensor and TCJ sensor is compared with temperature of TC sensor and then the lower temperature is used to set the upper limit of the fan tap. When B zone has continued for 6 minutes, the operation shifts to C zone. In defrost time, the control point is set to +0.8 F[6 C]. TCJ:Temperature of indoor heat exchanger sensor In D and E zones, priority is given to remote controller air speed setup. In A zone is displayed. F ( C) 90 (32) 86 (30) 82 (28) 79 (26) 68 (20) 6 (6) D C E B A A zone: FF B zone: ver 79 F (26 C), below 82 F (28 C), ULTRA LW (LL) C zone: ver 82 F (28 C), below 86 F (30 C), LW (L) D zone: ver 86 F (30 C), below 90 F (32 C), MED (H) E zone: HIGH (HH) 8

19 No. Item utline of specifications Remarks 7 Freeze prevention control (Low temp. release). In all cooling operation, the air conditioner operates as de-scribed below based upon temp. detected by TC, TC2 and TCJ sensors. When J zone is detected for 5 minutes, the thermostat is forcedly off. In K zone, the timer count is interrupted, and held. When I zone is detected, the timer is cleared and the operation returns to the normal operation. If J zone continues, operation of the indoor fan in LW mode continues until it reaches the I zone. It is reset when the following conditions are satisfied. Reset conditions ) TC > 54 F [2 C] and TC2 > 54 F [2 C] and TCJ > 54 F [2 C]. 2) 20 minutes passed after stop. TC: Temperature of indoor heat exchanger sensor F ( C) P Q J K a P Q TC 50 C [0 C] 4 C [5 C] 32 F [0 C] TC2, TCJ 4 C [ 0 C] 7 F [ 4 C] ( ) value: When the power supply is turned on, the forced thermo FF if the temperature is less than this indicated temperature. 2. In all cooling operation, the air conditioner operates as described below based upon temp. detected by TC2 and TCJ sensors. When M zone is detected for 30 minutes, the thermostat is forcedly off. In N zone, the timer count is interrupted and held. When shifting to M zone again, the timer count restarts and continues. If L zone is detected, the timer is cleared and the operation returns to normal operation. Reset conditions ) TC > 54 F [2 C] and TC2 > 54 F [2 C] and TCJ > 54 F [2 C]. 2) 20 minutes passed after stop. F ( C) P2 Q2 L N M P2 Q2 TC2, TCJ 4 F [5 C] 28 F [ 2.0 C] In a Model without TC2, TC2 is not judged. 8 Recovery control for cooling oil (Refrigerant) The indoor which is under STP/Thermo-FF status or which operates in [FAN] mode performs the following controls when it received the cooling oil (Refrigerant) recovery signal from the outdoor. ) pens PMV of the indoor with a constant opening degree. 2) perates the drain pump for approx. minute during recovery control and after finish of control. Recovery operation is usually performed every 2 hours 5 minuts. 9

20 No. Item utline of specifications Remarks 9 Recovery control for heating refrigerant (il) The indoor which is under STP/Thermo-FF status or which operates in [FAN] mode performs the following controls when it received the heating refrigerant (il) recovery signal from the outdoor. ) pens PMV of the indoor with a constant opening degree. 2) Detects temperature of TC2 and then closes PMV. The indoor which is under thermo-ff (CL) status or which operates in [FAN] mode stops the indoor fan and displays [READY ]. Recovery operation is usually performed every hour. (When there is even indoor which the thermo is off) 0 Compensation control for short intermittent operation ) For 3 minutes after start of operation, the operation is forcedly continued even if the enters in Thermo-FF condition. 2) However the thermostat is FF giving prior to CL/HEAT selection, READY for operation and protective control. Usually the priority is given to 5 minutes at outdoor controller side. Display of filter sign [ ] Separately set type TCB-AX2UL is prepared. ) The filter sign is displayed with LC by sending the filter-reset signal to the remote controller when the specified time (2500H) elapsed as a result of integration of the operation time of the indoor fan. 2) The integrated timer is cleared when the filter-reset signal is received from the remote controller. In this time, if the specified time elapsed, the counted time is reset and the LC display is deleted. [ FILTER] goes on. Filter time 2500H 20

21 No. Item utline of specifications Remarks 2 Display of [READY] [HEAT READY] < READY> Displayed on the remote controller ) When the following check codes are indicated pen phase of power supply wiring [P05] was detected. There is an indoor that detected the indoor overflow [P0]. There is an indoor that detected the interlock alarm [L30]. 2) During Force Thermo-FF [CL/DRY] operation is unavailable because the other indoor operates with [HEAT] mode. [HEAT] operation is unavailable because CL priority (SW-bit of the utdoor P. C. board is N) is set and the other indoor operates with [CL/DRY] mode. 3) The above indoor s that cannot operate stay in Thermo-FF status. 4) The indoor fan stops because the system performs [Recovery operation for heating refrigerant (il)]. <READY > display No display for wireless type remote controller <HEAT READY> Displayed on the remote controller. Normal thermo. FF During heating, the indoor goes thermo FF as the heating temperature setting is reached. 2. During heating, the fan rotates at a breeze speed (UL or lower) or remains stationary to prevent cold air from being discharged (including defrosting operation). 3. Forced thermo FF HEAT operation is unavailable because at least one indoor is operating in CL/DRY mode under priority cooling setting (bit of SW on outdoor P.C. board N). <HEAT READY > display 3 Selection of central control mode ) Selection of the contents that can be operated by the remote controller at the indoor side is possible according to setting at the central controller side. 2) Setting contents In case of TCC-LINK central control peration from TCC-LINK central control Individual [Central ] [Central 2] [Central 3] [Central 4] peration on RBC-AMT32UL N/FF peration Timer Temp. Air speed Air direction setting selection setting setting setting setting n RBC-AMT32UL [Central control] display ( : peration possible : peration impossible) 2

22 No. Item utline of specifications Remarks 4 Save operation ) The save operation starts when remotecontroller is turned on. SAVE button on the 2) While the save operation is performed, segment goes on the screen of the wired remote controller. 3) The request capacity ratio is restricted to approx. 75% during save operation. 4) If the save operation was validated, the contents are held during the operation stop, the operation mode change and the resetting of power supply. Therefore the operation at the next time also will be activated with Save operation is valid. 22

23 8-. Indoor Controller Block Diagram 8. APPLIED CNTRL AND FUNCTIN 8--. When Main (Simple) Wired Remote Controller Connected Indoor # PMV Indoor fan motor Main (Simple) wired remote controller (up to 2 s) Display LCD Display LED EEPRM CPU Function setting Key switch Remote controller communication circuit DC5V Power supply circuit A B #2 A B #3 A B Indoor control P. C. board (MCC-403) DC20V DC2V Remote controller communication circuit EEPRM DC5V TA sensor Power supply circuit CPU H8/3039 TC sensor TC2 sensor TCJ sensor Sameas left Sameas left Driver HA Fan motor relay circuit External output In operation Alarm Getting ready Thermostat N CL HEAT FAN AC synchronization signal input circuit BUS communication circuit U U2 U U2 L L2 L L2 Transformer L L2 Power source 208/ U U2 Indoor/outdoor communication U U2 utdoor Power source utdoor Power source utdoor Up to 8 s can be connected. 23

24 8--2. When Wireless Remote Controller Kit Connected Indoor # PMV Indoor fan motor A B #2 A B #3 A B Wireless remote controller kit Indoor control P.C. board (MCC-403) DC20V DC2V Remote controller communication circuit EEPRM Remote controller communication circuit Sensor P. C. board DC5V TA sensor Sensor circuit Display section Power supply circuit CPU H8/3039 TC sensor TC2 sensor TCJ sensor Sameas left Sameas left Driver Fan motor control circuit External output In operation Alarm Getting ready Thermostat N CL HEAT FAN AC synchronization signal input circuit BUS communication circuit HA L U U2 U U2 L2 L L2 Transformer L Power source 208/ L2 U U2 Indoor/outdoor communication U U2 utdoor Power source utdoor Power source utdoor Up to 8 s can be connected. 24

25 8--3. When Both Wired (Simple) Remote Controller and Wireless Remote Controller Kit Connected Indoor # PMV Indoor fan motor Main (Simple) wired remote controller (up to 2 s) Display LCD Display LED EEPRM CPU Function setting Key switch Remote controller communication circuit DC5V Power supply circuit A B #2 A B #3 A B Wireless remote controller kit Indoor control P.C. board (MCC-403) DC20V DC2V Remote controller communication circuit EEPRM Remote controller communication circuit DC5V TA sensor Sensor circuit Display section Power supply circuit CPU H8/3039 TC sensor TC2 sensor TCJ sensor Sameas left Sameas left Driver Fan motor control circuit External output In operation Alarm Getting ready Thermostat N CL HEAT FAN AC synchronization signal input circuit BUS communication circuit HA L U U2 U U2 L2 L L2 Transformer L Power source 208/ L2 U U2 Indoor/outdoor communication U U2 utdoor Power source utdoor Power source utdoor Up to 8 s can be connected. 25

26 8--4. Indoor Printed Circuit Board MCC-403 Power supply transformer (Primary side) /CN074 ptional power supply /CN309 Power supply /CN067 AC fan output /CN083 Power supply transformer (Secondary side) (ACV, 4V, 20V) /CN075 Microcomputer operation LED /D002 PMV output /CN082, DC2V EXCT /CN073, DC5V TA sensor /CN04 External input /CN080 TCJ sensor /CN02 TC2 sensor /CN0 TC sensor /CN00 Also used for communication of the central control system /CN040 Remote controller power supply LED /D203 HA (T0) /CN06, DC2V ptional output /CN060, DC2V Remote controller /CN4 DISP /CN72, DC5V CHK /CN07, DC5V 26

27 8--5. P.C. Board ptional Switch/Connector Specifications Function Connector No. Pin No. Specification Remarks Fan output HA ptional output External input CHK peration check DISP Display mode EXCT Demand CN32 CN6 CN60 CN80 CN7 CN72 CN73 DC2 V Factory default setting: N when indoor in operation and FF when indoor at rest utput 2 * Fan can be operated on its own by pressing FAN button on remote controller (DN = 3) Start / stop inpu Start / stop input for HA (J0: In place / Removed = Pulse input (factory default) / Step input) 2 0 V (CM) 3 Remote controller disabling inpu Enables / disables start / stop control via remote controller 4 In-operation output N during operation (HA answerback signal) 5 DC2 V (CM) 6 Alarm output N while alarm N DC2 V (CM) 2 Defrosting output N while outdoor defrosted 3 Thermostat N output N while real thermostat N (compressor N) Cooling output Heating output Fan output N while air conditioner in cooling or related operation (CL, DRY or cooling under AUT mode) N while air conditioner in heating operation (HEAT or heating under AUT mode) N while indoor fan N (air cleaner in use or via interlock wiring) DC2 V (CM) Generates test code L30 and automatically shuts down 2 DC2 V (CM) air conditioner (only if condition persists for minute) 3 External input Check mode input Used for indoor operation check (prescribed operational status output, such as indoor fan "H" or drain pump N, 0 V 2 to be generated without communication with outdoor or remote controller) Display mode input Product display mode - Communication just between 2 0 V indoor and remote controller enabled (upon turning on of power) Timer short-circuited out (always) Demand input Imposes thermostat FF on indoor 2 0 V 27

28 8-2. Functions at test run Cooling/Heating test run check The test run for cooling/heating can be performed from either indoor remote controller or outdoor interface P.C. board.. Start/Finish operation of test run Test run from indoor remote controller Wired remote controller: Refer to the below item of Test run of the wired remote controller. Wireless remote controller: Refer to the next page item of Test run of the wireless remote controller. In case of wired remote controller <RBC-AMT32UL> TEMP. TIMER SET TIME FAN SAVE N / FF MDE VENT 2, 4 3, 5 FILTER RESET TEST SET CL SWING/FIX UNIT LUVER Procedure peration contents Push [TEST] button for 4 seconds or more. [TEST] is displayed at the display part and the mode enters in TEST mode. TEST Push [N/FF] button. Change the mode from [CL] to [HEAT] using [MDE] button. Do not use [MDE] button for other mode except [CL]/[HEAT] modes. The temperature cannot be adjusted during test run. The detection is performed as usual. After test run, push [N/FF] button to stop the operation. (Display on the display part is same to that in Procedure.) TEST 5 Push [TEST] button to clear the TEST mode. ([TEST] display in the display part disappears and status becomes the normal stop status.) Note) The test run returns to the normal operation after 60 minutes. 28

29 <In case of wireless remote controller (TCB-AX2UL)> Procedure 2 Turn on power of the air conditioner. Description The operation is not accepted for 5 minutes when power has been turned on at first time after installation, and minute when power has been turned on at the next time and after. After the specified time has passed, perform a test operation. Push [Start/Stop] button and change the operation mode to [CL] or [HEAT] with [Mode] button. Then change the fan speed to [High] using [Fan] button. Test cooling operation Test heating operation Set temperature to [64 F (8 C)] using [Temperature set] button. After checking the receiving sound Pi, immediately push [Temperature set] button to set to [66 F (9 C)] After checking the receiving sound Pi, immediately push [Temperature set] button to set to [64 F (8 C)]. Set temperature to [86 F (30 C)] using [Temperature set] button. After checking the receiving sound Pi, immediately push [Temperature set] button to set to [84 F (29 C)]. After checking the receiving sound Pi, immediately push [Temperature set] button to set to [86 F (30 C)]. 6 7 Then repeat the procedure After approx. 0 seconds, all the display lamps on the sensor part of wireless remote controller, [peration] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation. If the lamps do not flash, repeat the procedure 2 and after. After the test operation, push [Start/Stop] button to stop the operation. Be sure to set the air speed to [High] 2 3, 4, 5, 6 2, 7 29

30 Check function for operation of indoor (Functions at indoor side) This function is provided to check the operation of the indoor singly without communication with the remote controller or the outdoor. 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. Limit using this function within several minutes. [How to operate] ) Short-circuit CHK pin (CN7 on the indoor P.C. board). The operation mode differs according to the indoor status in that time. Normal time: Both float SW and fan motor are normal. Abnormal time: Either one of float SW or fan motor is abnormal. 2) Restricted to the normal time, if short-circuiting DISP pin (CN72 on the indoor P.C. board) in addition to short-circuit of CHK pin (CN7 on the indoor P.C. board), the minimum opening degree (30pls) can be set to the indoor PMV only. When open DISP pin, the maximum opening degree (500pls) can be obtained again. [How to clear] pen CHK pin. While the system is operating, it stops once but automatically returns to operation after several minutes. Short-circuit of CHK pin(cn7) DISP pin open(cn7) Normal time DISP pin short circuit(cn7) Abnormal time Fan motor Indoor PMV ( ) Drain pump Communication P.C. board LED (H) (H) Stop Max. opening degree (500pls) Min. opening degree (30pls) Min. opening degree (30pls) N N N All ignored All ignored All ignored Lights Lights Flashes 30

31 8-3. Method to Set Indoor Unit Function DN Code (When performing this task, be sure to use a wired remote controller.) <Procedure> To be performed only when system at rest Push the + SET + CL buttons simultaneously and hold for at least 4 seconds. The No. displayed first is the address of the header indoor in group control. Then the fan and louver of the selected indoor move. 2 Each time the Select side of the UNIT LUVER button is pushed, one of the indoor Nos. under group control is displayed in turn. Then the fan of the selected indoor move. 3 Use the TEMP. button to select the CDE No. (DN code) of the desired function. 4 Use the button to select the desired SET DATA associated with the selected function. 5 Push the SET button. (The display changes from flashing to steady.) To change the selected indoor, go back to step 2. To change the selected function, go back to step 3. 6 When the SET button is pushed, the system returns to normal off state. 3 CDE No. SET DATA SETTING TEST UNIT No R.C. No. TEMP. FILTER RESET TEST TIMER SET SET TIME CL FAN SAVE SWING/FIX N / FF MDE VENT UNIT LUVER 3

32 Function CDE No. (DN Code) Table (Includes All Functions Needed to Perform Applied Control on Site) DN Item Descrip tion At sh ipment Filter display delay timer 0000: None 000: 50H According to type : 2500H 0004: 0000H 0003: 5000H 02 Dirty state of filter 0000: Standard 0000: Standard 000: High degree of dirt (Half of standard time) 03 Central control address 000: No. to 0064: No : Unfixed 0099: Unfixed 04 Specific indoor 0000: No priority 000: Priority 0000: No priority priority Heating temp shift 0000: No shift 000: + C(+.8 F) 0002: +2 C(+3.6 F) : +2 C(+3.6 F) to 000: +0 C(+8 F) (Up to +6 recommended) (Floor type 0000: 0 C) 0d Existence of [AUT] 0000: Provided 000: Not provided mode 000: Not provided (Automatic selection from connected outdoor ) 0F Cooling only 0000: Heat pump 0000: Heat pump 000: Cooling only (No display of [AUT] [HEAT]) 0006: High static Ducted Type 0 Type According to model type Indoor capacity 0000: Unfixed 000 to 0034 According to capacity type 2 Line address 000: No. to 0030: No : Unfixed 3 Indoor address 000: No. to 0064: No : Unfixed 4 Group address 0000: Individual 000: Header of group 0099: Unfixed 0002: Follower of group 28 2A 2E Automatic restart of power failure Selection of option/ input (CN23) HA terminal (CN6) select 0000: None 000: Restart 000: Restart 0000: Filter input 0002: External interlock 0000: Usual 0002: Fire alarm input 000: Alarm input (ption parts) 0002: External interlock 000: Leaving-N prevention control 0000: Usual (HA terminal) 3 Ventilating fan control 0000: Unavailable 000: Available 0000: Unavailable 32 TA sensor selection 0000: Body TA sensor 000: Remote controller sensor 0000: Body TA sensor 33 Temperature select 0000: C 000: F : (at factory shipment) 000: : F 60 Timer setting 0000: Available (can be performed) 0000: Available (wired remote controller) 000: Unavailable (cannot be performed) 92 utside interlock release condition 0000: peration stop 000: Release com munica tion signal receive 0000: peration stop Type DN code 0 Value Type Model 0006 High static Ducted MMD-AP *** H2UL * Default value stored in EEPRM mounted on service P.C. board Indoor Unit Capacity DN code Value 0000* Capacity Invalid * Default value stored in EEPRM mounted on service P.C. board type type ~ 32

33 8-4. Applied Control in Indoor Unit Remote location N/FF control box (TCB-IFCB-4UL) [Wiring and setup] Use the exclusive connector for connection with the indoor control P.C. board. In a group control, the system can operate when connecting with any indoor (Control P.C. board) in the group. However when taking out the operation/ signal from the other, it is necessary to take out from each individually.. Control items ) Start/Stop input signal : peration start/stop in 2) peration signal : utput during normal operation 3) Error signal : utput during alarm (Serial communication or indoor/outdoor protective device) operation 2. Wiring diagram using remote control interface (TCB-IFCB-4UL) Input IFCB-4UL : No voltage N/FF serial signal utput No voltage contact for operation, display Contact capacity: Below Max. AC240V 0.5A Indoor control P.C. board Remote location N/FF control box (TCB-IFCB-4UL) Start/Stop input CM (GND) 2 Remote controller prohibition/clear input 3 peration signal output 4 CM (+2V) 5 Error signal output 6 CN6 T0 (YEL) CN CN3 N/FF serial signal input CM peration signal output Error signal output Power supply 208/