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2-2. Major Component Specifications

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

Part No. WSA –LTR

Controls Microprocessor

Control circuit fuse 250 V – 3.15 A

Remote Control Unit RC–2(WOA)

Type Cross–flow

Number ... Dia. and length mm 1 ... ø95 / L617

Fan motor model ... Number KFV4Q–11H5P -S... 1

No. of poles ... rpm (230 V, High) 4 ... 1190

Nominal output W 10

Coil resistance (Ambient temp. 20°C)

Ω

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

—

Run capacitor

µF 0.8

VAC

440

Type

Stepping motor

Model

MP24GA1

Rating

DC 12 V

Coil resistance (Ambient temp. 25°C)

Ω

WHT – BLU (respectively 4 wires) : 380 ± 7%

Coil

Aluminum plate fin / Copper tube

Rows

Fin pitch

1.4

Face area m

0.130

Heat

Exch. Coil

Flap Motor

Fan & Fan Motor

Controller

PCB

Indoor Unit MCA90MR5TAA

Содержание GR360M3R5TAA

Страница 1: ...TECHNICAL DATA SERVICE MANUAL Outdoor Unit Indoor Unit GR360M3R5TAA MCA90MR5TAA x2 MULTI SPLIT SYSTEM AIR CONDITIONER 0 8180 233 1 06 2002 MCA90MR5TAA GR360M3R5TAA MCA180MR5TAA MCA180MR5TAA...

Страница 2: ...NING When Transporting 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 alumi...

Страница 3: ...lities are observed 44 10 5 If a sensor is defective 46 9 FUNCTION 9 1 Cool Mode Operation 21 9 2 Heat Mode Operation 22 9 3 Dry mode operation 23 9 4 Fan Operation 24 9 5 Protection Operations in Coo...

Страница 4: ...Unit Combination Combine indoor and outdoor units only as listed below Symbol of Indoor Unit Outdoor Unit Indoor Unit AE036TH Refer to MCA90MR5 A1 Fig 1 MCA90MR5 A2 MCA180MR5 B Fig 1 SYSTEM A B iii...

Страница 5: ...ATING RANGE Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Cooling Maximum 32 C DB 23 C WB 46 C DB Minimum 19 C DB 14 C WB 19 C DB Heating Maximum 27 C DB 24 C DB 18 C WB Minimum 5 C DB 6...

Страница 6: ...C thermostat Control unit Wireless remote control unit Timer 24 hr ON OFF Fan speeds Indoor Outdoor 3 and Auto Auto High Low Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washab...

Страница 7: ...it Wireless remote control unit Timer 24 hr ON OFF Fan speeds Indoor Outdoor 3 and Auto Auto High Low Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor...

Страница 8: ...s remote control unit Timer 24 hr ON OFF Fan speeds Indoor Outdoor 3 and Auto Auto High Low Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor Rotary Her...

Страница 9: ...it Wireless remote control unit Timer 24 hr ON OFF Fan speeds Indoor Outdoor 3 and Auto Auto High Low Airflow direction Indoor Horizontal Manual Vertical Auto Air filter Washable Anti Mold Compressor...

Страница 10: ...minal 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 Close Run...

Страница 11: ...output W 30 Coil resistance Ambient temp 20 C WHT BRN 130 4 WHT PNK 169 8 Safety Type Thermal protector devices Operating temp Open C 130 8 Close Automatic reclosing Run capacitor F 2 0 VAC 440 Type...

Страница 12: ...10 sec at 54 A Run capacitor F 55 2 Number VAC 450 2 Type Propeller Number Dia mm 2 460 Fan motor model Number KFC 6T 91C5P 2 No of poles rpm 230 V High 6 868 Nominal output W 100 Coil resistance Amb...

Страница 13: ...rmistor Room sensor NTC SENSOR Resistance k 25 C 10 5 Solenoid Coil Bypass SVa3 NEV MOAJ503B0 Coil NEV 202DXF Valve Coil rating AC 230V 50Hz 5W Coil resistance at 20 C 1450 7 Solenoid Coil Indoor unit...

Страница 14: ...41 0 MCA90 270 MCA90 Narrow tube 6 35 1 4 Wide tube 9 52 3 8 MCA90 Center of tubing hole 2 places Remote control unit 18 5 61 172 5 Unit mm 10 MCA180MR5TAA Wide tube 12 7 1 2 MCA180 995 MCA180 285 MC...

Страница 15: ...Outdoor Unit GR360M3R5TAA 11...

Страница 16: ...3 87 31 SHC 4 79 4 65 4 51 4 24 3 90 TC 5 22 5 04 4 80 4 51 4 15 CM 1 86 1 96 2 10 2 30 2 50 21 SHC 2 29 2 21 2 11 1 98 1 84 23 SHC 2 69 2 62 2 51 2 39 2 24 19 25 SHC 3 08 3 02 2 91 2 80 2 64 27 SHC 3...

Страница 17: ...1 31 SHC 5 09 4 94 4 79 4 50 4 15 TC 5 54 5 36 5 10 4 79 4 41 CM 1 77 1 87 2 00 2 20 2 38 21 SHC 2 43 2 35 2 24 2 11 1 95 23 SHC 2 85 2 78 2 67 2 54 2 38 19 25 SHC 3 27 3 20 3 09 2 97 2 81 27 SHC 3 69...

Страница 18: ...nit GR360M3R5TAA Outdoor temperature C DB 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...

Страница 19: ...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 20: ...stance m Axis air velocity m s Vertical distance m Room air temp 27 C Fan speed High Cooling 0 1 2 3 4 0 1 2 3 4 5 6 7 8 9 Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 0 1 2 3 4...

Страница 21: ...Wide tube service valve Narrow tube service valve Indoor Unit MCA90MR5TAA Outdoor Unit GR360M3R5TAA 7 REFRIGERANT FLOW DIAGRAM CIRCUIT A 17...

Страница 22: ...Wide tube service valve Narrow tube service valve Indoor Unit MCA180MR5TAA Outdoor Unit GR360M3R5TAA CIRCUIT B 18...

Страница 23: ...f indoor unit 1 System 2 Systems A1 A2 B A B Rating Conditions Running amp A 9 8 9 18 8 Power input kW 2 1 2 4 1 Full Load Conditions Running amp A 11 2 11 22 2 Power input kW 2 5 2 5 5 230V Single ph...

Страница 24: ...8 2 Electric Wiring Diagrams Outdoor Unit GR360M3R5TAA Indoor Unit MCA90MR5TAA 20 Indoor Unit MCA180MR5TAA...

Страница 25: ...int Temperature SPT as in the graph above Notes 1 In this graph the IFAN is operating in the Auto Fan Speed setting If the user has selected the low medium or high fan speed the IFAN will run constant...

Страница 26: ...RT SPT Note 1 The 30s IFAN operation is for purging the heat from the in coil after COMP has stopped Note 2 The IFAN will not be turned on until the in coil temperature is high enough as shown in the...

Страница 27: ...erature excessively the Dry Mode is different from the Cool Mode in two ways 1 The IFAN is forced to operate at low speed only And the IFAN is turned off with the COMP 2 The unit operates in either th...

Страница 28: ...corresponding OFAN is high during the first 10 min provided the OFAN is turned ON Note This rule is not applied at the first compressor starting after an High Pressure Protection section 9 5 In this c...

Страница 29: ...ion can prevent the ice formation at the in coil when the ambient temperature is low ICT oc 2 ON OFF ON OFF t1 t2 t3 COMP OFAN 1 5 0 1 ON OFF IFAN t1 5 min minimum for each COMP starting t2 OFAN cycli...

Страница 30: ...tion Off Off Off On 50 X ON Hi Lo X ON ON Notes 1 Protection Mode is activated when any of the condition A or condition B is satisfied In OCT high pressure protection only the system that start the pr...

Страница 31: ...e is activated when any of the condition A or condition B is satisfied In De icing mode both systems A B will always perform De icing at the same time 2 In the de icing process i The de icing process...

Страница 32: ...Outdoor Coil High Pressure Protection in Heat Mode The outdoor coil high pressure protection prevent the rising of pressure in the circuit during heating operation at high evaporating temperatures 28...

Страница 33: ...pressure protection prevent the build up of high pressure at the in coil during heating operation Note The operation temperatures shown as A and B in the chart differ by models MCA90 A 54 54 B 45 45...

Страница 34: ...at exchange coil have sufficiently warmed up When 10 minutes has elapsed the fan speed is automatically switched to set speed regardless of indoor heat exchange coil temperature Indoor heat exchange c...

Страница 35: ...is provided if the unit is used together with a remote controller with the I FEEL function When this function is selected the remote controller sends the room temperature measured by its build in the...

Страница 36: ...ry time this switch is pressed the next operation mode is selected in the order SB Cool Mode Heat Mode SB 32 9 8 5 Manual Unit Control and LED indicators 1 Indoor Unit PCB 2 Outdoor Unit PCB The statu...

Страница 37: ...o coupler output of an enabled indoor unit is invalid 2 Fault Handling Beside blinking the system Status LED the MSC MCU will also response to the system faults by taking different preventive actions...

Страница 38: ...timing test Thermistors test Auto Input Test Wait for 8 10 seconds Each output of UUT is turned ON for 2 sec with a 0 5 sec separation in the order below CCH A ORV A COM A SV A1 SV A2 SV A3 OFH A OFL...

Страница 39: ...the external reset circuit to generate a Hardware Reset is measured Criteria to pass the reset must be generated between 1 to 4 sec after the Watchdog signal is stopped 5 Thermistors Test Fails The t...

Страница 40: ...de by 60 Operation Mode J2 setting Quick Test Closed Normal Operation Open 9 8 7 Recovery from Power Failure Indoor Unit PCB Last unit settings SPT operation mode louver settings etc are saved in the...

Страница 41: ...y connected to the indoor units from the outdoor unit 10 1 3 Check power supply Check that voltage is in specified range 10 of the rating Check that power is being supplied 10 1 4 Check lead wires and...

Страница 42: ...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 terminal plate in outdoor...

Страница 43: ...Circuit breaker is tripped Power failure Reset breaker Wait for recovery or contact power company OK Try to run with another remote control unit First remote control unit is defective Check for resid...

Страница 44: ...he remote control unit Timer is turned ON Check to see if ON is displayed on remote control YES Press CLEAR button to cancel the timer mode D Check fuse on the outdoor PCB Ass y OK OK OK Check fuse on...

Страница 45: ...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 unit still...

Страница 46: ...ut 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 fo...

Страница 47: ...motor winding NO Check compressor motor capacitor YES YES YES Overload relay is working Refrigerant gas shortage Charge refrigerant gas R22 Temperature of compressor is abnormally high Rotor may be lo...

Страница 48: ...will switch to cooling or drying operation Unit a1 in heating mode first unit switched Unit a2 in cooling or drying mode Unit a1 in heating mode Heating operation has precedence so unit a2 is in stand...

Страница 49: ...both wide and narrow tubes separately and then tape together Measure temperature of suction and discharge air of air conditioner Charge refrigerant gas R22 Check for clogging of air filter Fan speed...

Страница 50: ...tive Status led RED on outdoor PCB blinks 5 times then off repeat YES Replace thermistor s At least one of the thermistors is defective that is SHORT or OPEN Definition of Open or Short Circuit of Sen...

Страница 51: ...11 ARRANGEMENT OF ELECTRICAL COMPONENTS Terminal Plate Outdoor Unit GR360M3R5TAA 47 Electric Parts...

Страница 52: ...Outdoor Unit GR360M3R5TAA Parts Layout in Unit 48 Electronic Control Board Compressor A Compressor B...

Страница 53: ...Outdoor Unit GR360M3R5TAA 49 Solenoid valves lay out...

Страница 54: ...e refrigerant remains in the refrigeration circuit This servicing includes disassembling brazed tubing connections and removing any refrigeration parts or components WARNING Fig 12 1 Fig 12 2 The foll...

Страница 55: ...rrow and wide tube service valves as indicated in table below Refer to Service Valve Construction shown later 12 4 2 Connect the vacuum pump and a manifold valve as shown in Fig 12 3 Confirm that all...

Страница 56: ...the way in order to close them position a Stop the pump 12 4 6 After removing the vacuum hoses from the service valves replace the flare nuts and bonnets on the valves The refrigerant circuit is now...

Страница 57: ...in COOLING 12 6 Reset the unit for normal operation 12 6 1 Turn off the power source 12 6 2 Connect the brown wire to the relay terminal as it was before servicing Fig 12 5 NOTE Charging volume Grada...

Страница 58: ...ime This position is also used when additional refrigerant charging is required in the field with both the indoor and outdoor units installed Fig 12 7c Valve Position d With the valve stem of the wide...

Страница 59: ...f 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 Fig...

Страница 60: ...ert a fuse of the same rating and solder it Allow time to radiate heat during soldering so that the fuse does not melt 13 3 Checking Motor Capacitor Remove the lead wires from the capacitor terminals...

Страница 61: ...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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