Quietside QSFMO-D2 Service Manual
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Quietside QSFMO-D2 Service Manual

Quietside QSFMO-D2 Service Manual

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Service Manual

Model: QSFMO-D2
QSFMO-T3
QSFMO-Q4
(Refrigerant
R410A)
:

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Summary of Contents for Quietside QSFMO-D2

  • Page 1: Service Manual

    Service Manual Model: QSFMO-D2 QSFMO-T3 QSFMO-Q4 (Refrigerant R410A)
  • Page 2 Service Manual Part Ⅰ : Technical Information 1. Summary Outdoor Unit QSFMO-D2 QSFMO-T3 QSFMO-Q4 Technical.Information...

  • Page 3: Specifications

    Service Manual 2. Specifications .Model.of.Outdoor.Unit.. QSFMO-D2 QSFMO-T3 QSFMO-Q4 .Product.Code.. CB228W01600_K90639 CB228W01700_K90639 CB228W01800_K90639 MITSUBISHI.ELECTRIC. MITSUBISHI.ELECTRIC. MITSUBISHI.ELECTRIC. (GUANGZHOU) (GUANGZHOU) (GUANGZHOU) .Compressor.Manufacturer/trademark.. COMPRESSOR. COMPRESSOR. COMPRESSOR. CO..LTD CO..LTD CO..LTD .Compressor.Model.. SNB130FGYMC TNB220FLHMC TNB220FLHMC .Compressor.Oil.. PVE/FV50S PVE/FV50S PVE/FV50S .Compressor.Type.. Rotary Rotary Rotary .L.R.A.. .Compressor.RLA .Compressor.Power.Input.

  • Page 4: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram (1)QSFMO-D2 12.4 14.9 35.4 21.7 Unit:inch (2)QSFMO-T3..QSFMO-Q4 35.1 13.4 15.6 37.2 22.0 Unit:inch Technical.Information...

  • Page 5: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram outdoor indoor filter A heat exchanger filter outdoor heat exchanger 4-way valve B heat exchanger filter high pressure switch Note: Not available for 14K/18K model discharge silencer C heat exchanger discharge temperature sensor filter D heat exchanger gas -liquid separator filter...

  • Page 6: Electrical Part

    Green Jumper.cap Yellow Brown COMP Compressor Blue Grounding.wire YEGN Yellow/Green Black Violet Orange Note:.Jumper.cap.is.used.to.determine.fan.speed.and.the.swing.angle.of.horizontal.lover.for.this.model. ● Indoor Unit (1)QSFMO-D2 14WH 13WH COMP. LX1-1 LX1-2 YEGN(GN) WH:WHITE BN:BROWN WARNING BU:BLUE YE:YELLOW Please don't touch any terminal when the voltage BK:BLACK RD:RED of terminal P(DC+) and N(DC-) at AP1 is higher...
  • Page 7 Service Manual (2)QSFMO-T3 (3)QSFMO-Q4 These.wiring.diagrams.are.subject.to.change.without.notice;.please.refer.to.the.one.supplied.with.the.unit. Technical.Information...

  • Page 8: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram (1)QSFMO-D2 ● TOP VIEW Compressor interface Unit A liquid valve and gas valve Unit B liquid valve and gas valve Compressor overload protector Temperature sensor Compressor electric heater Outdoor fan 4-way valve Chassis electric...
  • Page 9 Service Manual (2)QSFMO-T3.QSFMO-Q4 ● TOP VIEW Compressor interface Temperature sensor interface of unit A liquid valve and gas valve Temperature sensor interface of unit B liquid valve and gas valve Temperature sensor interface of unit C liquid valve and gas valve Temperature sensor interface of unit D liquid valve and gas valve...

  • Page 10: Function And Control

    Service Manual 6. Function and Control 1 Basic functions of the system 1.1 Cooling Mode 1.1.1 Cooling conditions and process: If the compressor is in stop status and start the unit for cooling operation, when one of the indoor units reaches the cooling operation condition, the unit start cooling operation;...

  • Page 11: Fan Mode

    Service Manual 1.3.3 Outdoor fan control in heating mode The outdoor fan starts before 5s of the starting of compressor and then it will run in high speed for 40s; The fan shall run at every speed for at least 80s; When the compressor stops, the outdoor fan stops after 1min.

  • Page 12: Overcurrent Protection

    Service Manual 2.4 Communication malfunction Detection of the quantity of installed indoor units: After 3min of energizing, if the outdoor unit does not receive the communication data of certain indoor unit, the outdoor unit will judge that indoor unit is not installed and will treat it as it is not installed. If the outdoor unit receives the communication data of that indoor unit later, the outdoor unit will treat that unit as it is installed.

  • Page 13: Precautions Before Performing Inspection Or Repair

    Service Manual 9. Maintenance 9.1 Precautions before Performing Inspection or Repair There.are.high-capacity.electrolytic.capacitors.on.the.outdoor.mainboard..Thus,.even.the.power.is.cut.off,.there.is.high.voltage. inside.the.capacitors.and.it.needs.more.than.20min.to.reduce.the.voltage.to.safety.value..Touching.the.electrolytic.capacitor.within. 20min.after.cutting.the.power.will.cause.electric.shock..If.maintenance.is.needed,.follow.the.steps.below.to.discharge.electricity.of. electrolytic.capacitor.after.power.off. (1).Open.the.top.cover.of.outdoor.unit.and.then.remove.the.cover.of.electric.box. electric.box outdoor.mainboard(AP1) Fig.29 (2).As.shown.in.the.fig.below,.connect.the.plug.of.discharge.resistance.(about.100ohm,.20W).(if.there.is.no.discharge.resistance,. you.can.use.the.plug.of.soldering.iron).to.point.A.and.B.of.electrolytic.capacitor..There.will.be.sparks.when.touching.them..Press. them.forcibly.for.30s.to.discharge.electricity.of.electrolytic.capacitor. outdoor.mainboard(AP1) discharge.resistance.or. plug.of.soldering.iron Fig.30 (3).After.finish.discharging.electricity,.measure.the.voltage.between.point.A.and.B.with.universal.meter.to.make.sure.if.electricity. discharging.is.completed,.in.order.to.prevent.electric.shock..If.the.voltage.between.the.two.points.is.below.20V,.you.can.perform. maintenance.safely. Installation.and.Maintenance...
  • Page 14 Service Manual 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement Note: : off : on : blink When several malfunctions occur at the same time, they will be displayed in circulation and every malfunction is displayed for 5s. Malfunction description LED1 LED2 LED3...

  • Page 15: Malfunction Checking And Elimination

    Service Manual Communication failure with Unit A Communication failure with Unit B Communication failure with Unit C Communication failure with Unit D Unit A freeze protection Unit B freeze protection Unit C freeze protection Unit D freeze protection overheating prevention protection Unit A overheating prevention protection Unit B...
  • Page 16 Service Manual Energize the unit Please check: 1. if the indoor and outdoor heat exchanges are dirty, if there is obstacle to affect the radiation; 2. if the indoor and outdoor fans are running normally; If the above cases are existed? 3.
  • Page 17 Service Manual (2) PFC protection malfunction Main checking points: If the power supply is normal; Check if the connection wire of induction is connected well and if the induction is broken; Flow chart: Start Check If the power supply is normal Turn on the unit after the power supply resumes to Power supply is abnormal...
  • Page 18 Service Manual (3) Capacity charging malfunction Main checking points: If the wiring of the induction is connected well and if the induction is broken; If the mainboard is broken; Flow chart: Energize the unit and wait for 1min Test the voltage between the two ends of the electrolytic capacitor with the DC shift of the universal meter...
  • Page 19 Service Manual (4) Anti-high temperature and overload malfunction Main checking points: If the outdoor ambient temperature is within the normal range; If the outdoor fan is running normally; If the indoor and outdoor radiation environment is good; Flow chart: Start It is a normal protection, please If the outdoor ambient temperature operate the unit after the outdoor...
  • Page 20 Service Manual (5) Temperature sensor malfunction Main checking points: If the temperature sensor is damaged or broken If the terminal of the temperature sensor is loosended or not connected; If the mainboard is broken; Flow chart: Start Check whether the wiring terminal between temperature sensor and controller is loosened or poorly contacted? Insert the temperature...
  • Page 21 Service Manual (6) Start failure malfunction Main checking points: If the connection wire of the compressor is connected properly; If the stop duration of the compressor is sufficient; If the compressor is broken; If the refrigerant charging amount is too much; Flow chart: Energize and start the unit...
  • Page 22 Service Manual (7) Communication malfunction Main checking points: If the connection wire between the indoor unit and outdoor unit is connected well, if the wires inside the unit is connected well; If the indoor mainboard or outdoor main board is broken; Flow chart: Communication malfunction of some indoor units...
  • Page 23 Service Manual All the indoor units appear communication malfunction De-energize,check the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Reconnect according to Eliminate the malfunction Connected correctly? the wiring diagram De-energize, check if the connection wire between the outdoor mainboard and the filter board according to the wiring diagram Reconnect according to...
  • Page 24 Service Manual (8) Compressor overload, diacharge protection malfunction Main checking points: If the eletric expansion valve is connected well or it is broken; If there is refrigerant leakage; If the overload protector is broken; Flow chart: Start If the overload protector is connected well? Check the resistance between the two ends of the overload protector in ambient temperature, if the resistance is below 1k...
  • Page 25 Service Manual (9) Compressor desynchronizing malfunction Main checking points: If the pressure of the system is too high; If the eletric expansion valve is working normally or it is broken; If the radiation of the unit is good; Flow chart: The unit appears desynchronizing as soon as energizing and starting The stop duration of the compressor is longer...

  • Page 26: Maintenance Method For Normal Malfunction

    Service Manual 9.4 Maintenance Method for Normal Malfunction 1. Air Conditioner Can't be Started up Possible.Causes. Discriminating.Method.(Air.conditioner.Status) Troubleshooting. Confirm.whether.it's.due.to.power.failure..If.yes,. No.power.supply,.or.poor. After.energization,.operation.indicator.isn’t.bright. wait.for.power.recovery..If.not,.check.power. connection.for.power.plug and.the.buzzer.can't.give.out.sound. supply.circuit.and.make.sure.the.power.plug.is. connected.well.. Wrong.wire.connection.between. Check.the.circuit.according.to.circuit.diagram. indoor.unit.and.outdoor.unit,. Under.normal.power.supply.circumstances,. and.connect.wires.correctly..Make.sure.all. or.poor.connection.for.wiring. operation.indicator.isn't.bright.after.energization wiring.terminals.are.connected.firmly terminals. Make.sure.the.air.conditioner.is.grounded. reliably Make.sure.wires.of.air.conditioner.is.connected. After.energization,.room.circuit.breaker.trips.off.at. Electric.leakage.for.air.conditioner correctly once Check.the.wiring.inside.air.conditioner..Check.
  • Page 27 Service Manual 4. ODU fan Motor can't Operate Possible.causes. Discriminating.method.(air.conditioner.status) Troubleshooting. Connect.wires.according.to.wiring.diagram.to. Wrong.wire.connection,.or.poor. Check.the.wiring.status.according.to.circuit. make.sure.all.wiring.terminals.are.connected. connection. diagram. firmly Measure.the.capacity.of.fan.capacitor.with.an. Capacity.of.the.ODU.fan.motor.is. universal.meter.and.find.that.the.capacity.is.out.of. Replace.the.capacity.of.fan damaged. the.deviation.range.indicated.on.the.nameplate.of. fan.capacitor. Power.voltage.is.a.little.low.or. Use.universal.meter.to.measure.the.power.supply. Suggest.to.equip.with.voltage.regulator. high. voltage..The.voltage.is.a.little.high.or.low. When.unit.is.on,.cooling/heating.performance. Change.compressor.oil.and.refrigerant..If.no. Motor.of.outdoor.unit.is.damaged is.bad.and.ODU.compressor.generates.a.lot.of. better,.replace.the.compressor.with.a.new.one noise.and.heat.. 5. Compressor can't Operate Possible.causes.
  • Page 28 Service Manual 10. Exploded View and Parts’ List (1)QSFMO-D2 Installation.and.Maintenance...
  • Page 29 Service Manual Part.Code Description QSFMO-D2 Product.code CB228W01600_K90639 Front.Grill .01473065 Cabinet .0143303402P Chassis.Sub-assy .01205168P Drainage.Joint .26113009 Compressor.Gasket .76715021 Compressor.and.fittings .00205262 Magnet.Coil .4300040033 4-way.Valve.Assy .03073129 Temperature.Sensor 39000073 Temperature.Sensor 3900007301 Cut.off.Valve .071302391 Cut.off.Valve .07130239 Retaining.Plate 02113040P. Handle.Assy 02113039P. Electric.expand.valve.fitting 43000084 Electric.expand.valve.fitting 4300008401 PFC.Inductance .43120130...
  • Page 30 Service Manual (2)QSFMO-T3 Installation.and.Maintenance...
  • Page 31 Service Manual Part.Code Description QSFMO-T3 Product.code CB228W01700_K90639 Front.Grill .01473049 Cabinet .01433047P Drainage.Plug 06123401 Chassis.Sub-assy .02803068P Drainage.Connecter .06123401 Compressor.and.Fittings .00105036 Compressor.Gasket .76710207 Gas-liquid.Separator.Assy .07225017 Inhalation.Tube .03723455 Right.Side.Plate .0130326801P Valve.Support.Assy .0710306601 Cut.off.Valve .071302391 Cut.off.Valve .071302391 big..handle.Assy 02113042P. Terminal.cover.Sub-Assy 01253057 Temperature.Sensor .39000073 Temperature.Sensor .3900007301 Temperature.Sensor .3900007302...
  • Page 32 Service Manual (3)QSFMO-Q4 Installation.and.Maintenance...
  • Page 33 Service Manual Part.Code Description QSFMO-Q4 Product.code CB228W01800_K90639 Front.Grill .01473049 Cabinet .01433047P Drainage.Plug 06123401 Chassis.Sub-assy .02803068P Drainage.Connecter .06123401 Compressor.and.Fittings .00105036 Compressor.Gasket .76710207 Gas-liquid.Separator.Assy .07225017 Inhalation.Tube .03723455 Right.Side.Plate .0130326801P Valve.Support.Assy .07103066 Cut.off.Valve .071302391 Cut.off.Valve .07130239 Terminal.cover.Sub-Assy 01253057 Temperature.Sensor .39000073 Temperature.Sensor .3900007301 Temperature.Sensor .3900007302 Temperature.Sensor .3900007303...

  • Page 34: Removal Procedure

    Service Manual 11. Removal Procedure Warning:.Be.sure.to.wait.for.a.minimum.of.20.minutes.after.turning.off.all. power.supplies.and.discharge.the.refrigerant.completely.before.removal. 11.1 Removal Procedure(QSFMO-D2) Procedure Steps 1..Remove.top.cover.and.handle Before.disassembly. Twist.off.the.screws.used.for.fixing.the.handle,.pull the.handle.upward.to.remove.it. Handle Top.panel Twist. off. the. screws. used. for. fixing. the. top. cover,. pull.the.top.cover.upward.to.remove.it. Installation.and.Maintenance...
  • Page 35 Service Manual Procedure Steps 2.Remove.front.grille.and.front.panel. 1..Remove. the. screws. connecting. the. front. grille. and.the.front.panel..Remove.the.front.grille. Front.grille Twist. off. the. screws. fixing. the. panel,. pull. it. upward,loosen.the.clasp.on.the.right.side,.rotate. it.to.the.left.and.then.remove.the.front.panel. Front.panel 3.Remove.right.side.plate 1..Remove.
  • Page 36 Service Manual Procedure Steps 4.Remove.the.axial.flow.fan 1..Remove. the. nuts. fixing. the. blade. and. thenremove. the.axial.flow.fan. Axial.Flow.Fan Remove.the.4.tapping.screws.fixing.the.motor;.dis- connect.the.leading.wire.insert.of.the.motor.and.then. remove.the.motor.Remove.the.2.tapping.screws fixing.the.motor.support.and.then.pull.the.motor.sup- port.upwards.to.remove.it. fan.motor. fixing.frame fan.motor 5.Remove.Electric.Box.Assy Remove.the.screws.fixing.the.electric.box.sub-assy;. Electric.Box loosen.the.wire.bundle;.pull.out.the.wiring.terminals. and.then.pull.the.electric.box.upwards.to.remove.it. Installation.and.Maintenance...
  • Page 37 Service Manual Procedure Steps 6..Remove.soundproof.sponge Tear.up.the.soundproof.sponge.carefully. Soundproof. sponge 7..Remove.reactor Remove. screws. connecting. reactor. and. middle. isolation.sheet,.and.then.remove.the.reactor. reactor 8..Remove.4-way.valve 4-way.valve Discharge. the. refrigerant. completely;unsolder. the. pipelines. connecting. the. compressor. and. the. condenser.assy,.and.then.remove.the.4-way.valve. assy. Installation.and.Maintenance...
  • Page 38 Service Manual Procedure Steps 9..Remove.electronic.expansion.valve.and.cut-off.valve electronic.expansion.valve Remove. electronic. expansion. valve. and. cut-off. valve. Unsolder. the. spot. weld. between. electronic. expansion. valve. and. cut-off. valve. as. well. as. the. spot. weld. of. connection. pipe. for. condenser,. and. then. remove. the. expansion. valve.. Meanwhile,. cut-off.valve rotate.
  • Page 39 Service Manual Procedure Steps 12...Remove.compressor Twist.off.the.three.foot.nuts.on.compressor.and.then compressor remove.the.compressor. 13..Remove.condenser.sub-assy 1..Remove. the. screws. connecting. the. support. (con- denser). and. condenser. assy,and. then. remove. the. support.(condenser). support condenser.sub-assy Dissemble.the.chassis.sub-assy.and.condenser sub-assy. chassis.sub-assy Installation.and.Maintenance...
  • Page 40 Service Manual 11.2 Removal Procedure(QSFMO-T3/QSFMO-Q4) Steps Procedure 1.Remove.big.handle.and.wire.connection.cover Before.disassembly Remove.the.screws.fixing.big.handle.and.right.side plate.to.remove.the.big.handle. big.handle Remove.the.screws.fixing.wire.connection.cover and.right.side.plate.to.remove.the.wire.connection cover. wire.connection.cover Installation.and.Maintenance...
  • Page 41 Service Manual Steps Procedure 2.Remove.top.cover top.cover Remove.the.screws.fixing.top.cover,.panel.and.left.& right.side.plate,.to.remove.top.cover. 3.Remove.grille Remove.the.screws.fixing.grille.and.panel,.to.remove. the.grille.on.the.panel. grille 4.Remove.panel Remove.the.screws.fixing.panel,.chassis.and.motor support,.to.remove.the.panel. panel Installation.and.Maintenance...
  • Page 42 Service Manual Steps Procedure 5.Remove.right.side.plate Remove.the.screws.fixing.right.side.plate,.valve support.and.guard.grille,.to.remove.the.right.side plate. right.side.plate 6.Remove.guard.grille Remove.the.screws.fixing.guard.grille.and.left.side plate.to.remove.guard.grille. guard.grille 7.Remove.left.side.plate Remove.the.screws.fixing.chassis.and.condenser support,.to.remove.the.left.side.plate. left.side.plate Installation.and.Maintenance...
  • Page 43 Service Manual Steps Procedure 8.Remove.condenser.support Remove.the.screws.fixing.support.and.chassis,.to remove.the.condenser.support. condenser.support 9.Remove.axial.fan.blade Remove.the.screw.nuts.fixing.fan.blade.with.spanner,. to.remove.the.fan.blade. axial.fan.blade 10.Remove.motor.and.motor.support.sub-assy Remove.the.tapping.screws.fixing.motor,.pull.out.the pin.of.leading.wire.for.motor.and.remove.the.screws fixing.motor.support.and.chassis,.to.remove.the.motor. and.motor.support.sub-assy. motor motor.support.sub-assy Installation.and.Maintenance...
  • Page 44 Service Manual Steps Procedure 11.Remove.electric.box.sub-assy electric.box.sub-assy Remove.the.tapping.screws.fixing.isolation.sheet, loosen.the.wire.binds,.pull.out.the.terminal,.lift.to remove.the.electric.box.sub-assy. 12.Remove.PFC.electrical.inductance Remove.the.screws.fixing.PFC.electrical.inductance and.isolation.sheet,.to.remove.the.PFC.electrical inductance. PFC.electrical.inductance 13.Remove.four-way.valve.sub-assy four-way.valve. sub-assy Welding.cut.the.welding.point.jointing.the.four-way valve.with.blowtorch.to.remove.the.four-way.valve sub-assy..(Note:.please.make.sure.there’s.no refrigerant.in.the.unit.before.remove.any.tube.or compressor) Installation.and.Maintenance...
  • Page 45 Service Manual Steps Procedure 14.Remove.suction.pipe.sub-assy Welding.cut.the.welding.point.jointing.the.suction pipe.sub-assy,.compressor.and.liquid.receiver,.to remove.the.suction.pipe.sub-assy. suction.pipe.sub-assy 15.Remove.liquid.receiver Remove.the.screws.fixing.isolation.sheet.and.liquid receiver.and.lift.to.remove.the.liquid.receiver. liquid.receiver 16.Remove.the.isolation.sheet.assy Remove. the. screws. fixing. isolation. sheet. and. condenser.side.plate,.to.remove.the.isolation.sheet assy. isolation.sheet.assy Installation.and.Maintenance...
  • Page 46 Service Manual Steps Procedure 17.Remove.compressor compressor Remove.the.screw.nuts.fixing.compressor.foots.and chassis.with.spanner,.as.well.as.the.foot.cushion,.to remove.the.compressor. 18.Remove.valve.support.assy valve.support.assy Remove.the.screws.fixing.valve.support.assy.and chassis.sub-assy,.to.remove.the.valve.support.assy. 19.Remove.EXV.assy Welding.cut.the.welding.point.jointing.EXV.sub-assy and.refrigerant.collection.pipe,.to.remove.the.EXV assy..(Note:.fully.pack.the.big.valve.with.wet.cloth when.welding.cutting,.to.avoid.high.temperature damage.of.valve) EXV.assy Installation.and.Maintenance...
  • Page 47 Service Manual Step Procedure 4..Remove.axial.flow.blade Remove the nut fixing axial flow blade and then remove the blade. axial.flow.blade 5.Remove.electric.box.assy grounding wire Remove. the. grounding. wire. screw. on. the. e l e c t r i c . b o x . a s s y . a n d . t h e n . r e m o v e . t h e. grounding.wire..(See.fig.1) retainer Disconnect.
  • Page 48 Service Manual Step Procedure screws Remove. the. 2. screws. fixing. the. electric. box. assy.and.then.lift.the.electric.box.assy.upwards. to.remove.it. electric box assy electric box clasp(right) cover clasp(left) Push. the. electric. box. cover. in. the. direction. of. arrow. to. make. the. clasp. at. the. right. side. separate.
  • Page 49 Service Manual Step Procedure 6.remove.the.soundproof.sponge. Tear.off.the.sticking.stripe.and.then.remove.the. soundproof.sponge. sticking stripe soundproof sponge 7.remove.the.isolation.plate.and.reactor Remove. the.2. screws.connecting.the. isolation. plate. and. condenser. side. plate;. remove. the. 3. screws. connecting. the. isolation. plate. and. chassis,.and.then.remove.the.isolation.plate. screw .isolation.plate screw(Note:.these.two.screws.are screw .at.the.side.of.motor.support) Remove. the. 4. screws. connecting. the. reactor. reactor and.isolation.plate,.and.then.remove.the.reactor screw...
  • Page 50 Service Manual Step Procedure 8.Valve.Support.Sub-Assy Valve.Support. Unsolder. the. welding. joint. connecting. the. valve. Sub-Assy with. capillary. and. condenser;. unsolder. the. welding. joint. connecting. the. gas. valve. and. air- liquid. return. pipe;. remove. the. 2. bolts. fixing. the. gas. valve valve.to.remove.the.gas.valve. Unsolder.
  • Page 51 Service Manual Step Procedure Remove. the. 6. screws. fixing. the. motor. and. then. remove.the.motor. motor screw 11.Remove.condenser. condenser Remove.the.2.screws.fixing.the.condenser.and. chassis,.and.then.lift.the.condenser.upwards.to. remove.it. screw screw 12.Remove.compressor foot.nuts Remove.the.3.foot.nuts.fixing.compressor.and. then.lift.the.compressor.upwards.to.remove.the. compressor.and.damping.cushion. compressor Note: Keep. the. ports. of. discharge. pipe. and. suction. pipe.from.foreign.objects. damping. cushion Installation.and.Maintenance...
  • Page 52 Service Manual Appendix 4: List of Resistance for Ambient Temperature Sensor Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6...
  • Page 53 Service Manual Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443...
  • Page 54 Service Manual Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20...
  • Page 55 JF00301856...

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