Toyotomi GAG-A128GVR Service Manual
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Toyotomi GAG-A128GVR Service Manual

Refrigerant r-410a
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MODEL: GAN/GAGA128GVR
GAN/GAGA135GVR
(Refrigerant R-410A)

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Summary of Contents for Toyotomi GAG-A128GVR

  • Page 1 MODEL: GAN/GAGA128GVR GAN/GAGA135GVR (Refrigerant R-410A)
  • Page 2 Summary and features Indoor Unit:GAN-A128GVR GAN-A135GVR GAN-A180GVR GAN-A240GVR Outdoor unit: GAG-A128GVR GAG-A135GVR GAG-A180GVR GAG-A240GVR Infrared Remote control YB1F2...

  • Page 3: Table Of Contents

    Table of Contents Summary and features ..............1 Part 1 1.Safety Precautions.............2 Part 2 SPECIFICATIONS..............3 2.1 Unit Specifications..................... 3 2.2 Operation Characteristic Curve............... 7 2.3 CapacityVariationRatio AccordingtoTemperature ........7 2.4 Operation Date..................8 2.5 Noise criteria curve tables for both models ..........8 Part 3 Construction Views...............9 3.1 Indoor Unit ..............

  • Page 4: Summary And Features

    Table of Contents 6.13 Heating Peak-cut Control ..............26 6.14 Defrost Control ..................26 6.15 Fan Control ...................27 Part 7 INSTALLATION MANUAL.............28 7.1 Tools Required for Installation ..............28 7.2 Installation Position Selection ..............26 7.3 INSTALLATION OF INDOOR UNIT ............26 7.4 INSTALLATION OF OUTDOOR UNIT .............32 7.5 Test Operation ..................33 Part 8 EXPLODED VIEWS AND PARTS LIST........34 8.1 Exploded View ............

  • Page 5: Part 1 1.Safety Precautions

    Safety Precautions 1.Safety Precautions Important! or rubbish. The unit should be installed according to the instructions This air conditioning system meets strict safety and in order to minimize the risk of damage from earthquakes, operating standards. As the installer or service person, typhoons or strong winds.

  • Page 6: Part 2 Specifications

    Specifications SPECIFICATIONS 2.1 Unit Specifications Model NOT AVAILABLE GAN/GAGA128GVR COOLING HEATING Function COOLING Rated Voltage 220-240V 220-240V Frequency High (Inverter different Compressor Standard speed) Total Capacity High W / Btu/h 3230 / 11000 3230 / 11000 4100 / 14000 (Inverter different Compressor...
  • Page 7 Specifications N0T AVAILABLE GAG A128GVR Outdoor Unit Manufacturer/trademark DIT/daikin DIT/daikin Model 1YC23AEXD 1YC23AEXD Type Rotary type Rotary type Compress L.R.A. (A) RLA(A) Power Input(W) 600W 600W Overload Protector CS-7SA CS-7SA Throttling Method Capillary Capillary Transducer starting Transducer starting Starting Method Working Temp Range 5~43 -7~43...
  • Page 8 Specifications Models GAN/GAGA135GVR Model NOT AVAILABLE GAN/GAGA135GVR Function COOLING COOLING HEATING Rated Voltage 220-240V 220-240V High Frequency (Inverter different Compressor Standard speed) Total Capacity High W / Btu/h 3960 / 13500 3960 / 13500 5130 / 17500 (Inverter different Compressor Standard W / Btu/h 3530 / 12000...
  • Page 9 Specifications NOT AVAILABLE GAG-A135GVR Outdoor Unit Manufacturer/trademark DIT/daikin DIT/daikin Model 1YC23AEXD 1YC23AEXD Type Rotary type Rotary type Compress L.R.A. (A) RLA(A) Power Input(W) 600W 600W Overload Protector CS-7SA CS-7SA Throttling Method Capillary Capillary Transducer starting Transducer starting Starting Method Working Temp Range 5~43 -7~43 Coil...

  • Page 10: Operation Characteristic Curve

    Specifications 2.2 Operation Characteristic Curve Cooling Heating Condition Condition Indoor:DB 20 Indoor:DB 27 WB19 Indoor air flow: Super High Indoor air flow: Super High Pipe length:5m Pipe length:5m Voltage:230V Voltage:230V Compressor Speed(rps) Compressor Speed(rps) 2.3 Capacity Variation Ratio According to Temperature Cooling Heating Condition...

  • Page 11: Operation Date

    Specifications 2.4 Operation Date Cooling Temp. Condition( ) Standard Indoor Fan Outdoor Compressor Model Pressure(Mpa) Mode Fan Mode Revolution(rps) Indoor Outdoor 0.9 to 1.1 27/19 35/24 Super High 930rpm 0.8 to 1.0 Heating Temp. Condition( ) Standard Indoor Fan Outdoor Compressor Model Pressure(Mpa)

  • Page 12: Part 3 Construction Views

    Constrction views 3. Construction Views 3.1 Indoor Unit 126.5 548.5 3.2 Outdoor Unit...

  • Page 13: Part 4 Refrigerant System Diagram

    Refrigerant System Diagram 4. Refrigerant System Diagram (1)Cooling Only Models INDOO AS SID 3-WA VALV Muffler Di s charge CHAN ( VAPO A O ) Suction Accumlator COMP SSO CHAN (COND NS ) LI ID SID 2-WA VALV Strainer Capillary Strainer COOLIN (2)Cooling &...

  • Page 14: Part 5 Schematic Diagram

    Schematic Diagram 5. Schematic Diagram 5.1 ELECTRICAL DATA Indoor Unit Symbol Color symbol Symbol Color symbol WHITE BROWN YELLOW BLUE BLACK YELLOW GREEN PROTECTIVE EARTH YEGN Outdoor Unit Symbol Parts name Symbol Color symbol REACROR WHITE PRINTED CIRCUIT BOARD YELLOW PCB1~PCB2 CONNECTOR S10/S11S40/S70/S80/S90...
  • Page 15 Schematic Diagram Outdoor Unit Models NOT AVAILABLE EXH S O OO E SENSO E SENSO E SENSO YE N YE N YE N YE N YE N YE B E EC IC BOX YE N S B SSY YE N Models GAG A128GVR, GAG A135GVR EXH S O OO...

  • Page 16: Printed Circuit Board

    Schematic Diagram 5.3 Printed Circuit Board TOP VIEW BOTTOM VIEW...
  • Page 17 Schematic Diagram ground wire...
  • Page 18 Schematic Diagram TOP VIEW BOTTOM VIEW...
  • Page 19 Schematic Diagram FRONT VIEW BOTTOM VIEW...
  • Page 20 Schematic Diagram TOP VIEW BOTTOM VIEW...

  • Page 21: Function And Control

    Function and Control 6. Function and Control 6.1 Remote Control Operations Note: Be sure that there are no obstructions between receiver and remote control; Don't drop or throw the remote control; Don't let any liquid in the remote control and put the remote control directly under the sunlight or any place where is very hot.

  • Page 22: Timer Button

    Function and Control TIMER AUTO Timer button HEALTH BLOW HUMIDITY On the status of the unit on, press this ● FILTER button to set timer off. On the status of TURBO HOUR the unit off, press this button to set timer ON/OFF off.
  • Page 23 Function and Control BLOW Blow button Set Blow on (the characters of Blow will ● appear)or off (the characters of Blow AUTO disappears) by pressing this key under HEALTH BLOW cool or dehumidify mode. Once energized, HUMIDITY FILTER the unit will be defaulted to be Blow off. TURBO HOUR This function can not be set under auto,...

  • Page 24: Changing Batteries And Notices

    Function and Control 6.2 Changing batteries and notices Slightly to press the place with , along the arrowhead direction to push the back cover of wireless remote control. (As show in figure) Take out the old batteries. (As show in figure) Insert two new AAA1.5V dry batteries, and pay attention to the polarity.

  • Page 25: Description Of Each Control Operation

    Function and Control 6.5 DESCRIPTION OF EACH CONTROL OPERATION * Anti-cold air function The rotational speed of indoor electromotor is decided based on the 1. When the unit is energized, all the display marks will be shown and onl y indoor pipe temperature.
  • Page 26 Function and Control Timer off: the timer off function can be set when the unit is on. When the setting time for timer off is reached, the unit will stop. The timing interval is After energization, the motor of upper and lower swing will enable the air 0.5hour, and the setting range is 0.5~24hours.

  • Page 27: Error Detection Of Temperature Sensor

    Function and Control Temperature ensor malfunction detection (1) Indoor temperature sensor Detect malfunctions of temperature sensor any time. (2) Indoor pipe temperature sensor In defrosting period, the temperature sensor malfunction will not be detected. 5 min after finishing defrosting, the system begins to detect the temperature sensor malfunction.

  • Page 28: Discharge Pipe Control

    Function and Control 6.10 Discharge Pipe Control Outline The discharge pipe temperature is used as the compressor’s internal temperature. If the discharge pipe temperature rises above a certain level, the operating frequency upper limit is set to keep this temperature from going up further. Detail Divide the Zone Stop zone...

  • Page 29: Heating Peak-Cut Control

    Function and Control During cooling operation, the signals being sent from the indoor unit allow the operating frequency limitation and then prevent freezing of the indoor heat exchanger. (The signal from the indoor unit must be divided into the zones as the followings.) Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec from operation start.

  • Page 30: Fan Control

    Function and Control PI control Frequency 60sec. 50sec. 600sec. 50sec. Compressor Four way valve 5sec. 5sec. 450pps 350pps 450pps Electronic expansion valve opening Initial opening 6.15 Fan Control Outline Fan control is carried out according to the following priority. 1. Fan ON control for electric component cooling fan 2.

  • Page 31: Part 7 Installation Manual

    Installation Manual 7. INSTALLATION MANUAL 7.2 Installation Position Selection Important Notices (1)The air inlet and outlet vent should be far from the obstruction, make sure that the air can be blown through the whole room. (2)Select a position where the condensing water can be easily 1.
  • Page 32 Installation Manual Recommended mounting plate retention spots and Burr removal 1.Completely remove all burrs from the cut cross section of dimensions Use tape measure pipe/tube. as shown. Recommended mounting plate Place a leveler Position the end of retention spots (5 spots in all) on raised tab.
  • Page 33 Installation Manual 3.2 Connection of piping 5. Insert the connecting cable fully into the terminal block and 1.Align the center of the pipes and sufficiently tighten the flare nut secure it tightly with screws. by hand. 6. Tightening torque: 1.2 N•m (0.12 kgf•m). 7.
  • Page 34 Installation Manual 1.After making slits on the front panel with a knife or similar tool, cut them out with a pair of nippers or an equivalent tool. In the case of bending or curing refrigerant pipes, keep the fol- lowing precautions in mind. Abnormal sound may be generated if improper work is conducted.

  • Page 35: Installation Of Outdoor Unit

    Installation Manual For detaching the indoor unit from the installation plate pull the indoor unit toward you while pushing the bottom up at the speci- fied places. Push Push 4)Run the drain hose at a downward sloped angle. Do not rise the drain hose. Do not form the drain hose Finally, tighten the flare nut with torque wrench until the wrench into the waved shape.

  • Page 36: Test Operation

    Installation Manual 4. Operate the vacuum pump to begin evacuating. Perform evacu- 1) Strip the insulation from the wire (20mm). ating for about 15 minutes if the piping length is 20 meters (15 minutes for 20 meters) (assuming a pump capacity of 27 liters 2) Connect the connection wires between the indoor and outdoor units so that the terminal numbers match.

  • Page 37: Part 8 Exploded Views And Parts List

    Exploded Views and Parts list 8. EXPLODED VIEWS AND PARTS LIST 8.1 Exploded View Indoor Unit...
  • Page 38 Exploded Views and Parts list Outdoor Unit (1) Cooling Only Models...
  • Page 39 Exploded Views and Parts list (2) Cooling & Heating Models...
  • Page 40 Exploded Views and Parts list 8.2 Parts List Indoor Unit Part Code Description NOT AVAILABLE GAN-A128GVR Decorative Strip 20192292 20192292 Front Panel 2001232501T 2001232501T 1112208201 1112208201 Filter Sub-Assy Front Case 20012324 20012324 Guide Louver 10512119 10512119 Air Louver 10512160 10512160 Shaft of guide louver 1054202001 1054202001...
  • Page 41 Exploded Views and Parts list Part Code Description NOT AVAILABLE GAN-A135GVR 20192292 20192292 Decorative Strip 2001232501T 2001232501T Front Panel 1112208201 1112208201 Filter Sub-Assy Front Case 20012324 20012324 Guide Louver 10512119 10512119 Air Louver 10512160 10512160 Shaft of guide louver 1054202001 1054202001 Front Panel Assy 2001237601...
  • Page 42 Exploded Views and Parts list Outdoor Unit (1) Cooling Only Models Part Code Description NOT AVAILABLE NOT AVAILABLE Front Grill 22413017 22413017 Cabinet 01433044P 01433044P Axial Flow Fan Sub-Assy 1033300901 1033300901 Fan Motor 15013073 15013073 Motor Support 0170311101 01703111 Left Side Plate 20053001 20053001 Top Cover Sub-Assy...

  • Page 43: Part 9 Troubleshooting

    Troubleshooting 9. TROUBLESHOOTING 9.1 Precautions before Performing Inspection or Repair Be cautious during installation and maintenance. Do operation following the regulations to avoid electric shock and casualty or even death due to drop from high attitude. * Static maintenance is the maintenance during de-energization of the air conditioner. For static maintenance, make sure that the unit is de-energized and the plug is disconnected.

  • Page 44: Troubleshooting

    Troubleshooting code malfunctio Error display Repair method malfunction Error display Repair method Dual Dual 8 display display Storage Heating LED-pause Replace indoor main Sync failure Heating Check if the resistance slug 3s and blink 15 board LED-pause 3s and compressor times blink 7 times resistance to ground is...

  • Page 45: How To Check Simply The Main Part

    Troubleshooting 9.4 How to Check simply the main part (1) Malfunction of power supply from indoor unit to outdoor unit Main inspection point: Inspect the power supply plug seat with AC voltage gauge to check if the voltage between L and N is within 200VAC~240VAC; Check with AC voltage gauge if the voltage between N 1and 3 of indoor wiring block is within 200VAC~240VAC;...
  • Page 46 Troubleshooting Energize the unit and start it (3) Temperature sensor malfunction Main detection point: Is outdoor ambient temperature within the normal range? Is indoor and outdoor fan running normally? Is the radiating environment inside and outside the unit good enough? Malfunction diagnosis process:...
  • Page 47 Troubleshooting Energize the (4) Malfunction diagnosis of startup failure unit and start it Main detection points: Is wiring of compressor correct Is the stop time of compressor more Start it 3 min later Is the stop time of compressor enough? than 3min£¿...
  • Page 48 Troubleshooting (6) Diagnosis of overload and discharge malfunction Main detection points: Is electric expansion valve well connected? Is it damaged? Is refrigerant leaked? Is overload wire connection normal? Malfunction diagnosis process: (7) Process of communication circuit detection...

  • Page 49: 2-Way, 3-Way Valve Appearance

    Troubleshooting 9.5 2-way, 3-way Valve Appearance 2-way Valve (Liquid Side) 3-way Valve (Gas Side) Valve cap Hexagonal wrench (4mm) Open position Flare nut Flare nut Closed position Open position Closed position piping piping Service Service connection connection port cap port To outdoor unit To outdoor unit Works...
  • Page 50 Troubleshooting Liquid side Indoor unit Outdoor unit Clsed 2-way valve Gas side Clsed 3-way valve Vacuum pump OPEN CLOSE * Procedure CAUTION: (1)Connect the charge hose from the manifold valve to the ser- If gas leakage are discovered in step 5 above, take the vice port of the gas side packed valve.
  • Page 51 Troubleshooting Liquid side Indoor unit Open Outdoor unit 2-Way valve Gas side Closed 3-Way valve CLOSE CLOSE Purge the air • Procedure (7) Immediately set the 3-way valve to the closed position. (1) Confirm that both the 2-way and 3-way valves are set to the open position.
  • Page 52 Troubleshooting Liquid side Indoor unit Closed Outdoor unit 3-Way valve Gas side Closed 3-Way valve Gas cylinder R410A OPEN CLOSE • Procedure (1) Confirm that both the liquid side valve and the gas side (6) Disconnect the charge set and the gas cylinder, and set balve are set to the closed position.
  • Page 53 Troubleshooting Balance Refrigerant of the 3-way Valve (Gas leakage) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open OPEN CLOSE • Procedure (1) Confirm that both the 2-way and 3-way valves (3) Open the valve (Lo side) on the charge set and are set to the back seat.
  • Page 54 Troubleshooting Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit 3-Way valve Open Gas side 3-Way valve Open Vacuum pump OPEN CLOSE • Procedure (1) Connect the vacuum pump to the center hose (3) Close the valve (Lo side) on the charge set, of charge set center hose turn off the vacuum pump, and confirm that the gauge needle does not move (approxima-...

  • Page 55: Gas Charging

    Troubleshooting Gas Charging (After Evacuation) Liquid side Indoor unit Open Outdoor unit 3-Way valve Gas side Open 3-Way valve Check valve Charging cylinder OPEN CLOSE • Procedure This is different from previous procedures. (1) Connect the charge hose to the charging Because you are charging with liquid refrigerant cylinder.

  • Page 56: Part 10 Removal Procedure

    Removal Procedure 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. 1. External features If ON/OFF button is kept pushing for 5 seconds, aforced cooling op- eration willbe carried out for approx.
  • Page 57 Removal Procedure Support the front panel by one 3. Opening and shuttingfront panel hand, while remove the rotation Pull down horizontal blade axis at the upper center by the by pulling forward. other hand. And pull out the front panel forward to remove.
  • Page 58 Removal Procedure 4. Opening and closing of service cover screws Remove a service cover mounting screw. Open service cover upward. A switch for field setting is not provided in particular. screws 5. Removal of front grille assembly Remove the 3 screws, in the right and the left, Screw stoppers inside the which fix the main body...
  • Page 59 Removal Procedure 6. Remove the Vertical blade Hook Unfasten the hooks at the upper 2 positions. A set of vertical blade has 6 fins as on ASSY. (It is impossible to replace only one fin.) The set of vertical blades is not marked for difference between right and left.
  • Page 60 Removal Procedure 7. Remove electrical box Disconnect the Cable clamp Pay attention to the direction of the retainer of the thermistor so that the retainer will not touch the harness (same as the existing models.) Terminal board Disconnect the connection wires. Connecting wires Take care not to lose the clip...
  • Page 61 R em oval Pr ocedur e Remove fan motor Signal fan motor Signal Wire Wire Remove a screw on the electrical box. Bottom frame Pull up the electrical box forward to remove. Hook...
  • Page 62 Removal Procedure 8. Remove the shield plate. Unfasten the hooks at Hook the upper 2 positions of the shield plate. Remove the electrical box according to the “Removal of Electrical Box”. shield plate (1) Unfasten the hook at the lower position, and remove the shield plate (1).
  • Page 63 Removal Procedure Take off Wiring terminal Display PCB ASSY Remove Display PCB Sub-Assy. Remove Swing motor. Swing motor...
  • Page 64 Removal Procedure The control PCB is To remove the control integrated with the power PCB, unfasten the 2 hooks at the upper part supply PCB. from the rear side. Lift up the upper part of the control PCB, and remove it. Control PCB...
  • Page 65 R em oval Pr ocedur e 9. Disconnect the refrigerant piping. CAUTION If gas leaks, repair the spot of Lift the indoor unit by a leaking, then collect all wooden base. refrigerant from the unit. After conducting vacuum drying, recharge proper amount of refrigerant.
  • Page 66 R em oval Pr ocedur e 9. Remove the indoor unit. When the pipings are disconnected, protect the Remove the indoor unit both openings from entering from the installation moisture. plate. Liquid piping Gas piping (R8019) Auxiliary piping Piping fixture Release the hook of the piping fixture on the back of the unit.
  • Page 67 Removal Procedure Loosen the 2 screws, in the right and the left, which fix the Evaporator Assy. Auxiliary piping Widen the auxiliary piping to the extent of 10°~20°. Pull the heat exchanger Heat exchanger to the front side to undo the hooks completely, and then lift it.
  • Page 68 Removal Procedure 10. Remove Cross Flow Fan Fan Motor Remove Cross Flow Fan Fan Motor 11. Remove Ring of Bearing Bearing 12. Remove Cross Flow Fan and Motor Sub-Assy screw.
  • Page 69 Removal Procedure 13. Remove Motor Sub-Assy Remove Motor Sub-Assy 14. Remove Fan Motor...

This manual is also suitable for:

Gan-a128gvrGag-a135gvrGan-a135gvrGan-a180gvrGan-a240gvrGag-a180gvr ... Show all

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