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8

Outdoor Unit GRV187M2R5VAA

58

58

95

58

337

307

630

19

Narrow tube service valve
ø6.35(1/4")

1

Wide tube service valve
ø9.52(3/8")

2

305

830

4 – ø12 holes

Air discharge

Air intake

538

146

2

Magnified illustration

3

1

To Indoor Unit B

To Indoor Unit A

3 Check Port

Dimensions : mm

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Содержание GRV187M2R5VAA

Страница 1: ...TECHNICAL DATA SERVICE MANUAL Indoor Unit Outdoor Unit MCAV97MR5TAA GRV187M2R5VAA MULTI SPLIT SYSTEM AIR CONDITIONER Indoor Unit Outdoor Unit MCAV97MR5TAA GRV187M2R5VAA 0 8180 142 0 03 2001...

Страница 2: ...g Be careful when picking up and moving the indoor and outdoor units Get a partner to help and bend your knees when lifting to reduce strain on your back Sharp edges or thin aluminum fins on the air c...

Страница 3: ...21 10 2 Dry Operation 23 10 3 Freeze prevention 24 10 4 Overload prevention 24 10 5 Cold draft prevention 25 10 6 Defrosting operation 26 11 REFRIGERANT R407C SPECIAL PRECAUTION WHEN SERVICING UNIT 1...

Страница 4: ...LECTRICAL COMPONENTS 45 14 CHECKING ELECTRICAL COMPONENTS 14 1 Measurement of insulation Resistance 46 14 2 Checking Continuity of Fuse on PCB Ass y 47 14 3 Checking Motor Capacitor 47 APPENDIX INSTRU...

Страница 5: ...Combination Combine indoor and outdoor units only as listed below Indoor Unit Outdoor Unit A B Refer to Outdoor Unit Symbol of Indoor Unit GRV187M2R5VAA A Indoor Unit MCAV97MR5TAA B Fig 1 MCAV97MR5TAA...

Страница 6: ...ING RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Maximum 32 C DB 23 C WB 43 C DB Minimum 19 C DB 14 C WB 19 C DB Heating Maximum 27 C DB 24 C DB 18 C WB Minimum 16 C DB 8 C...

Страница 7: ...ntrol unit Timer 1 hour OFF 12 hour ON or OFF Fan speeds Indoor Outdoor 3 and Auto 1 Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic R...

Страница 8: ...our OFF 12 hour ON or OFF Fan speeds Indoor Outdoor 3 and Auto 1 Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Hermetic Refrigerant Amount ch...

Страница 9: ...4 1190 Nominal output W 10 Coil resistance Ambient temp 20 C WHT BRN 561 8 WHT VLT 197 4 VLT ORG 63 4 ORG YEL 155 7 YEL PNK 115 9 Safety Type Internal thermal fuse devices Operating temp Open C 145 2...

Страница 10: ...Ambient temp 25 C Trip in 6 to 16 sec at 16 5 A Run capacitor F 25 2 Number VAC 450 2 Type Propeller Number Dia mm 1 400 Fan motor model Number SG6 51B5P 1 No of poles rpm 230 V High 6 910 Nominal out...

Страница 11: ...TK5131B Resistance k 0 C 15 0 2 Thermistor Room sensor DTN TKS106E Resistance k 25 C 5 0 3 Outdoor Unit GRV187M2R5VAA Power Relay PRA PRB DFU24D1 F M Coil rating DC 24V Coil resistance at 20 C 650 10...

Страница 12: ...SIONAL DATA Indoor Unit GRV187M2R5VAA 58 5 99 5 805 177 41 0 41 0 270 Narrow tube 6 35 1 4 Wide tube 9 52 3 8 MCAV97MR5TAA Center of tubing hole 2 places Drain hose 18 Remote control unit 18 5 61 172...

Страница 13: ...95 58 337 307 630 19 Narrow tube service valve 6 35 1 4 1 Wide tube service valve 9 52 3 8 2 305 830 4 12 holes Air discharge Air intake 538 146 2 Magnified illustration 3 1 To Indoor Unit B To Indoor...

Страница 14: ...93 1 00 1 10 1 19 21 SHC 1 21 1 18 1 12 1 05 0 98 23 SHC 1 43 1 39 1 34 1 27 1 19 19 25 SHC 1 64 1 60 1 55 1 49 1 40 27 SHC 1 85 1 82 1 76 1 70 1 62 29 SHC 2 05 2 03 1 97 1 91 1 83 31 SHC 2 27 2 25 2...

Страница 15: ...30 40 50 60 70 80 90 100 110 120 Heating capacity ratio NOTE 1 Point of Rating condition Black dot in the chart indicate the following rating condition Indoor 20 C DB Outdoor 7 C DB 6 C WB 2 Above cha...

Страница 16: ...Vertical distance m Axis air velocity Flap angle 45 60 Room air temp 20 C Fan speed High Heating 0 1 2 3 4 5 6 7 8 9 1 2 3 4 Horizontal distance m Axis air velocity m s Vertical distance m Axis air v...

Страница 17: ...fler Accumulator Compressor A 4 Way valve 4 Way valve Drier Check valve Strainer Heat exchanger Narrow tube O D 6 35mm 1 4 Wide tube O D 9 52mm 3 8 Muffler Accumulator Compressor B Wide Tube Service v...

Страница 18: ...Narrow Tube Service valve Capillary tube Drier Drier 4 Way valve 4 Way valve Insulation of Refrigerant Tubing To prevent heat loss and wet floors due to dripping of condensation water both the wide a...

Страница 19: ...Temperature 43 C DB Number of indoor unit 1 Unit 2 Units Either A or B Both A and B Rating Conditions Running amp A 4 6 9 3 Power input kW 1 0 2 15 Full Load Conditions Running amp A 5 4 10 8 Power i...

Страница 20: ...8 2 Electric Wiring Diagram 15 Indoor Unit MCAV97MR5TAA...

Страница 21: ...Outdoor Unit GRV187M2R5VAA...

Страница 22: ...nted Type Front View Fig 2a WARNING Minimum height from floor level 1 5m Indoor Unit Wall Floor level For stable operation of the air conditioner do not install wall mounted type indoor units under 1...

Страница 23: ...o reduce humidity and protect the unit against possible water damage and decreased service life Fig 5a use lug bolts or equal to bolt down unit reducing vibra tion and noise Outdoor Unit Outdoor unit...

Страница 24: ...t position 3 After confirming correct operation use a screwdriver to screw the supplied special mounting screw into the wall Fig 6a 4 Hang the remote control unit from the mounting screw b Non removab...

Страница 25: ...ula tions when carrying out the installation Table 2 lists recommended wire lengths and size for power supply systems Refer to the WIRING SYSTEM DIAGRAM for the meaning of A B and C in Table 2 NOTE 20...

Страница 26: ...erant pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize As a protective measure the control circuit switches the compressor OFF after 5 minute...

Страница 27: ...tive measure the control circuit switches the compressor OFF after 5 minutes or more of compressor operation Thermo ON When the room temperature is below T 1 C T C is set temperature Compressor ON The...

Страница 28: ...e Both the indoor and outdoor units stop Room temp 15 C Dry A1 zone Compressor FMI indoor fan Continuous operation L low speed LL very low speed intermittent ventilation only while the compressor is O...

Страница 29: ...overheating of the indoor heat exchange coil When the temperature of the indoor heat exchange coil rises above 54 C and if the indoor fan is L low speed then the fan speed changes from L low speed to...

Страница 30: ...out before the indoor heat exchange coil have sufficiently warmed up STANDBY lamp on front of the indoor unit lights up when the indoor fan speed is either LL or OFF 25 LL Very low speed Initial star...

Страница 31: ...eg 6 min or more and repeats 3 times continuously Heating operation 20 minutes masking 6 minutes masking Temperature in outdoor heat exchanger coil falls to 14 C or lower Preparation for defrosting Te...

Страница 32: ...FF OFF 30 sec ON ON ON 5 sec 5 sec ON ON ON ON 5 sec ON ON OFF OFF OFF OFF OFF 1 min Defrosting 13 5 min or outdoor coil temp 26 C 65 sec 65 sec ON Standby lamp A Indoor fan A Outdoor fan 4 way valve...

Страница 33: ...mposition will differ depending on whether it is in gaseous or liquid phase and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state...

Страница 34: ...stallation procedures refer to the installation manuals attached to the indoor unit and outdoor unit 29 Tool Distinction Tool Name Gauge manifold Charging hose Gas leak detector Refrigerant cylinder C...

Страница 35: ...quickly 3 Checking for sealing Use nitrogen gas for the pressurized gas and never use a refrigerant other than R407C Also do not use oxygen or any flammable gas 4 Evacuation Use a solenoid valve inst...

Страница 36: ...f the volume of refrigerant in the cylinder becomes less than 20 of the fully charged amount the composition of the refrigerant starts to change Thus do not use the refrigerant if the amount in the re...

Страница 37: ...ubes utilizing substitution with nitrogen N2 in the refrigerant circuit of the unit Leave ends of tubes open during welding 4 Checking for sealing Use nitrogen gas for the pressurized gas and never us...

Страница 38: ...ing the air conditioning unit Example In case of charging refrigerant to a unit requiring 0 76Kg using a capacity of 10Kg cylinder the minimum necessary amount for the cylinder is 0 76 10 x 0 20 2 76K...

Страница 39: ...s given in 10 6 In case refrigerant is leaking and completely carry out repairs Only then should you recharge the refrigerant 11 8 Retro fitting existing systems 101 8 1 Use of existing units Never us...

Страница 40: ...er is being supplied 12 1 4 Check lead wires and connectors in indoor and outdoor units Check that coating of lead wires is not damaged Check that lead wires and connectors are firmly con nected Check...

Страница 41: ...stance of electrical parts in outdoor unit NO NO Set circuit breaker to OFF Measure insulation resistance of electrical parts in indoor unit 1 Remove both power supply wires and inter unit wires from...

Страница 42: ...re Reset breaker Wait for recovery or contact power company YES NO OPERATION selector switch is set in ON position Set OPERATION selector switch to ON Switch Ass y or indoor PCB Ass y is defective OK...

Страница 43: ...e if light is ON Light is OFF Measure resistance of primary and secondary winding of transformer TR Indoor PCB Ass y or switch Ass y is defective OK Measure resistance of indoor fan motor winding FMI...

Страница 44: ...un Remote control unit is defective Try to run using another remote control unit COOL OK NO Is room temperature too high Try to raise setting temperature by temperature setting button warmer Outdoor u...

Страница 45: ...out or foreign matter in bearings Remove foreign matter or repair Repair or replace Measure resistance of indoor fan motor winding Check fan motor capacitor Fan cannot be turned Check fan casing for f...

Страница 46: ...otor winding NO Check compressor motor capacitor YES YES YES Overload relay is working Refrigerant gas shortage Charge refrigerant gas R407c Temperature of compressor is abnormally high Rotor may be l...

Страница 47: ...will switch to cooling or drying operation Example Unit A in heating mode Unit B in cooling or drying mode Unit A in heating mode Heating operation takes precedence Unit B fan operating If the units a...

Страница 48: ...te both wide and narrow tubes separately and then tape together Measure temperature of suction and discharge air of air conditioner Charge refrigerant gas R407c Check for clogging of air filter Fan sp...

Страница 49: ...high room temperature a In Cooling mode The air conditioner continues to operate Thermo ON Both the outdoor fan and compressor do not stop As a result the room becomes too cold b In Heating mode The a...

Страница 50: ...13 ARRANGEMENT OF ELECTRICAL COMPONENT 45 Outdoor Unit GRV187M2R5VAA 45...

Страница 51: ...t of the unit with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on each terminal screw where power supply lines are connected on the terminal plate F...

Страница 52: ...insert a fuse of the same rating and solder it Allow time to radiate heat during soldering so that the fuse does not melt 14 3 Checking Motor Capacitor Remove the lead wires from the capacitor termina...

Страница 53: ...S A C olgiate olona printed in italy R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728...

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