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* Cautions during brazing

①

General cautions

1)  The brazing strength should be high as required.
2)  After operation, airtightness should be kept under a pressurized condition.
3)  During brazing do not allow component materials to become damaged due to overheating.
4)  The refrigerant pipe work should not be come blocked with scale or flux.
5)  The brazed part should not restrict the flow in the refrigerant circuit.
6)  No corrosion should occur from the brazed part.

②

Prevention of overheating

Due to heating, the interior and exterior surfaces of treated metal may oxidize. Especially, when the interior of the

refrigerant circuit oxidizes due to overheating, scale occurs and stays in the circuit as dust, thus exerting a fatally adverse

effect. So, make brazing at adequate brazing temperature and with a minimum of heating area.

③

Overheating protection

In order to prevent components near the brazed part from overheating damage or quality deterioration due to flame or

heat, take adequate steps for protection such as (1) by shielding with a metal plate, (2) by using a wet cloth, and (3) by

means of heat absorbent.

④

Movement during brazing

Eliminate all vibration during brazing to protect brazed joints from cracking and breakage.

⑤

Oxidation preventive

In order to improve the brazing efficiency, various types of antioxidant are available on the market. However, the con

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stituents of these are widely varied, and some are anticipated to corrode the piping materials, or adversely affect HFC
refrigerant, lubricating oil, etc. Exercise care when using an oxidation preventive.

4.3 Installation, removal and servicing

4.3.1 Tools for R410A

In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, the

service port diameter of the outdoor unit service valve (3-way valve) has been changed. Also, to increase the pressure resisting
strength, flare processing dimensions and sizes of opposite sides of flare nuts (for copper pipes with nominal diameters 1/2 and
5/8) have been changed. During installation/service, therefore, prepare tools exclusive for R410A shown in (1) on page 99 and
general tools shown in (2) on page 100.

Fig.5 Prevention of oxidation during brazing

Flow meter

Stop valve

Reducing

valve

Piping

Rubber plug for sealing

From the nitrogen cylinder

�

Nitrogen gas

Nitrogen gas

M

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Содержание SRK60ZIX-S

Страница 1: ...82 INVERTER WALL MOUNTED TYPE AND FLOOR STANDING TYPE ROOM AIR CONDITIONER Split system air to air heat pump type Wall mounted type SRK20ZIX S 25ZIX S 35ZIX S 50ZIX S 60ZIX S Floor standing type SRF25ZIX S 35ZIX S 50ZIX S updated 25 May 2009 ...

Страница 2: ...A 69 3 1 Troubleshooting procedures for electrical equipment 69 3 2 Servicing 90 4 REFRIGERANT PIPING INSTALLATION SERVICING MANUAL FOR AIR CONDITIONERS USING R410A 91 4 1 Outline 91 4 2 Refrigerant piping installation 92 4 3 Installation removal and servicing 98 4 4 Refrigerant recovery 103 ...

Страница 3: ...computer 33 CONTENTS 1 RANGE OF USAGE LIMITATIONS 1 2 INDOOR UNIT 3 2 1 Wall mounted type SRK 3 1 Specifications 3 2 Exterior dimensions 8 3 Electrical wiring 9 2 2 Floor standing type SRF 10 1 Specifications 10 2 Exterior dimensions 13 3 Electrical wiring 14 1 Exterior dimensions 15 2 Electrical wiring 17 3 OUTDOOR UNIT 15 Series code Inverter type Product capacity Wall mounted type Split type ro...

Страница 4: ... 5 5 IM RD WH RD WH BK BL Y Y G BK t Th21 Th22 Th3 LM1 LM2 SM1 SM2 FMI DS t t TO OUTDOOR UNIT HEAT EXCHANGER 1 2 N 3 POWER WIRES SIGNAL WIRE 1 2 N 3 Power source 1 phase 220 240 V 50Hz T Color Marks Blue Black BK Red BL RD White WH Yellow Green Y G Yellow Y Color Mark Heat exch sensor Humidity sensor 50 60 only Fan motor Room temp sensor Flap motor Th1 Th21 2 Th3 Diode stack DS Fuse F Connector CN...

Страница 5: ...should be chosen along the regulations in each country The cable specifications are based on the assumption that a metal or plastic conduit is used with no more than three cables contained in a conduit and a voltage drop is 2 For an installation falling outside of these conditions please follow the internal cabling regulations Adapt it to the regulation in effect in each country 25 8 2 0 32 φ1 6mm...

Страница 6: ...the regulations in each country The cable specifications are based on the assumption that a metal or plastic conduit is used with no more than three cables contained in a conduit and a voltage drop is 2 For an installation falling outside of these conditions please follow the internal cabling regulations Adapt it to the regulation in effect in each country 14 2 0 18 φ1 6mm x 3 φ1 6mm 50 3 1 2 N 60...

Страница 7: ...cumlator Discharge pipe temp sensor Cooling cycle Heating cycle Cooling cycle Heating cycle Check joint 4way valve Service valve Heat exchanger sensor Th22 TH3 Room temp sensor Th1 Th21 Gas TH2 Heat exchanger sensor TH1 EEV Capillary tube Heat exchanger Humidity sensor Th3 Heat exchanger sensor Th21 Heat exchanger Flare connection Gas pipie φ12 7 Flare connection Liquid pipe φ6 35 Service valve Li...

Страница 8: ...nd frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 Outdoor Unit Model SRC20ZIX S Noise Level Cooling 47 dB A Heating 47 dB A 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 Cooling Heating Condition ISO T1 JIS C9612 ...

Страница 9: ...ency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 Outdoor Unit Model SRC25ZIX S Noise Level Cooling 47 dB A Heating 47 dB A 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N40 N60 N70 N20 N30 Cooling Heating Condition ISO T1 JIS C9612 ...

Страница 10: ...ling Heating Condition ISO T1 JIS C9612 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 ...

Страница 11: ...ooling Heating Condition ISO T1 JIS C9612 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 ...

Страница 12: ...ooling Heating Condition ISO T1 JIS C9612 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 ...

Страница 13: ...0 2 99 2 76 3 10 2 71 28 2 35 2 35 2 49 2 43 2 67 2 62 2 75 2 60 2 81 2 58 2 95 2 75 3 06 2 70 30 2 29 2 29 2 43 2 40 2 61 2 59 2 69 2 58 2 75 2 56 2 90 2 74 3 01 2 69 32 2 22 2 22 2 36 2 36 2 55 2 55 2 64 2 56 2 70 2 54 2 85 2 71 2 96 2 67 34 2 15 2 15 2 29 2 29 2 49 2 49 2 58 2 55 2 64 2 53 2 79 2 70 2 91 2 65 35 2 12 2 12 2 26 2 26 2 46 2 46 2 55 2 53 2 61 2 52 2 77 2 69 2 89 2 65 36 2 08 2 08 ...

Страница 14: ...CWB 6 52 6 46 6 42 6 34 6 27 15 CWB 7 10 7 04 6 99 6 91 6 85 20 CWB 7 63 7 57 7 53 7 45 7 39 Heat Mode Air flow Outdoor air temp Indoor air temp 21 CDB 14 CWB 23 CDB 16 CWB 26 CDB 18 CWB 27 CDB 19 CWB 28 CDB 20 CWB 31 CDB 22 CWB 33 CDB 24 CWB TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC TC SHC Hi 14 5 m3 min 10 6 76 4 98 7 08 4 90 7 34 5 03 7 46 4 96 7 59 4 88 7 81 4 98 8 02 4 81 12 6 64 4 92 6 96 4 ...

Страница 15: ...SELECTION OF INSTALLATION LOCATION INSTALLATION OF INDOOR UNIT Indoor unit Relation between setting plate and indoor unit Install at location that meets the following conditions after getting approval from the customer Where there is no obstructions to the air flow and where the cooled and heated air can be evenly distributed A solid place where the unit or the wall will not vibrate A place where ...

Страница 16: ... received the signal surely during operating the wireless remote control Places where there is no affected by the TV and radio etc Do not place where exposed to direct sunlight or near heat devices such as a stove Hold the bottom of the piping and fix direction before stretching it and shaping it Drill a hole with whole core drill In case of rear piping draw out cut off the lower and the right sid...

Страница 17: ...lly open The pipe joints for indoor and outdoor pipes have been insulated Connection wiring Earth wiring Outer tape Refrigerant piping Drain hose Wood screw Clamp Cover the exterior portion with outer tape and shape the piping so it will match the contours of the route that the piping to take Also fix the wiring and pipings to the wall with clamps Removing Remove the air inlet panel Remove the 5 s...

Страница 18: ...panel After installation The power supply voltage is correct as the rating No gas leaks from the joints of the operational valve Power cables and crossover wires are securely fixed to the terminal board Operational valve is fully open The pipe joints for indoor and outdoor pipes have been insulated Connection wiring Earth wiring Outer tape Refrigerant piping Drain hose Wood screw Clamp Cover the e...

Страница 19: ...ction listed under Caution can also result in a serious consequence depending on the circumstances Please observe all these instructions because they include important points concerning safety The meanings of Marks used here are as follows Beware of danger from a dropped tool or the like in installing the unit in an elevated position When the air conditioning unit makes abnormal sounds in operatio...

Страница 20: ...se the ignition of gas Do not touch the air intake and aluminum fins of the outdoor unit You may incur injury if you touch them Do not install the outdoor unit in a place where small animals are likely to inhabit If they enter the unit and touch electrical parts inside they may cause a unit failure or fire Please ask the customer to keep the surroundings clean Do not install the outdoor unit where...

Страница 21: ... installed 〇 Where wind does not hinder the intake and outlet pipes 〇 Out of the heat range of other heat sources 〇 A place where stringent regulation of electric noises is applicable 〇 Where it is safe for the drain water to be discharged 〇 Where noise and hot air will not bother neighboring residents 〇 Where snow will not accumulate 〇 Where strong winds will not blow against the outlet pipe 〇 A ...

Страница 22: ...RICAL W Take care so that installed pipes may not touch components within a unit If touching with an internal component it will generate abnormal sounds and or vibrations 4 On site piping work IMPORTANT How to remove the side cover Carry out the on site piping work with the operation valve fully closed Give sufficient protection to a pipe end compressed and blazed or with an adhesive tape so that ...

Страница 23: ...x both liquid and gas service valves at the valve main bodies as illustrated on the right and then fasten them applying appropriate fastening torque Tightening angle Tightening torque N m φ6 35 1 4 φ9 52 3 8 14 18 34 42 45 60 30 45 150 200 Use a torque wrench If a torque wrench is not available fasten the flare nut manually first and then tighten it further using the left table as a guide Recommen...

Страница 24: ...ate a vacuum again INSTALLATION After installation Check the following points again Explain to the customer how to u Power cables and crossov The power supply voltage The drain hose is fixed se Operational valve is fully o No gas leaks from the joi Do not hold the valve cap area with a spanner Always use a three core cable fo Clearance pe g Cable name plate Power supply terminal block It holds cab...

Страница 25: ...ters refer to the installation instructions or the construction instructions of the indoor unit Switchgear or Circuit breaker capacity which is calculated from MAX over current should be chosen along the regulations in each country The cable specifications are based on the assumption that a metal or plastic conduit is used with no more than three cables contained in a conduit and a voltage drop is...

Страница 26: ...he circumstances Please observe all these instructions because they include important points concerning safety The meanings of Marks used here are as follows Beware of danger from a dropped tool or the like in installing the unit in an elevated position When the air conditioning unit makes abnormal sounds in operation consult with your dealer Never do it under any circumstances Always do it accord...

Страница 27: ...se the ignition of gas Do not touch the air intake and aluminum fins of the outdoor unit You may incur injury if you touch them Do not install the outdoor unit in a place where small animals are likely to inhabit If they enter the unit and touch electrical parts inside they may cause a unit failure or fire Please ask the customer to keep the surroundings clean Do not install the outdoor unit where...

Страница 28: ...e where it can be free from possibility of bothering neighbors due to noise or exhaust air from the unit 〇 A place where the unit is not exposed to oil splashes 〇 A place where it can be free from danger of flammable gas leakage 〇 A place where drain water can be disposed without any trouble 〇 A place where the unit will not be affected by heat radiation from other heat source 〇 A place where snow...

Страница 29: ...mm Model 40 50 60 Intake Outlet 312 5 24 3 14 8 288 7 88 4 510 200 351 6 4 ELECTRICAL W 5 UTILIZATION O Electrical installation work must be pe Electrical installation work must be ex Do not use any supply cord lighter braided cord code designation 6 ordinary tough rubber sheathed flat twin tinsel cord code design Use polychloroprene sheathed flex Ground the unit Do not connect the gr If impropery...

Страница 30: ...olume charged for shipment at the factory when you recharge refrigerant after servicing etc Ele Ele D U G I A T a D D a F D i F W t p A Take care so that installed pipes may not touch components within a unit If touching with an internal component it will generate abnormal sounds and or vibrations 4 On site piping work IMPORTANT How to remove the side cover Carry out the on site piping work with t...

Страница 31: ... high temperature due to discharged gas flowing inside during a heating operation Wrap indoor units flare joints with heat insulating parts pipe cover for heat insulation both gas and liquid pipes Give heat insulation to both gas and liquid side pipes Bundle a heat insulating material and a pipe tightly together so that no gaps may be left between them and wrap them together with a connecting cabl...

Страница 32: ...re that all electrical components within the electrical component box are free of loose connector coupling or terminal connection and then attach the cover securely Improper cover attachment can result in malfunctioning or a failure o fthe unit if water penetrates into the box Always use a three core cable for an indoor outdoor connecting cable Never use a shield cable L Outdoor unit Switchgear or...

Страница 33: ...are nut do not use the old one but use the one supplied with the outdoor unit Process a flare to the dimensions specified for R410A Where the existing unit cannot be run for a cooling operation Wash the pipe system or install a new pipe system If you choose to wash the pipe system please contact our distributor in the area Always perform grounding system installation work with the power cord unplu...

Страница 34: ...ERGEN CLEAR button ACL switch This switch is for resetting microcomputer and setting time OFF TIMER button This button selects OFF TIMER operation TEMPERATURE button These buttons sets the indoor temperature These buttons are used for setting the current time and timer function as well This button cancels the ON timer OFF timer and SLEEP operation CANCEL button The above illustration shows all con...

Страница 35: ...ion needs to be switched off 2 When power failure ocurrs the timer setting is cancelled Once power is resumed reset the timer 3 If the jumper wire J170 AUTO RESTART is cut auto restart is disabled See the diagram at right 1 6 4 Custom cord switching procedure If two wireless remote controller are installed in one room in order to prevent wrong opera tion due to mixed signals please modify the prin...

Страница 36: ...s memorized in the microcomputer the flap or louver will automatically be set at this angle when the next operation is started 5 When not operating The flap returns to the position of air flow directly below when operation has stopped COOL DRY FAN Remote controller display HEAT Approx 5 Approx 20 Approx 20 Approx 35 Approx 35 Approx 45 Approx 75 Swing Flap stopped Approx 45 Approx 60 Approx 60 Ang...

Страница 37: ...determined according to the indoor temperature and setting temperature 2 During DRY Operation including auto DRY operation At cooling Air flow selection Operation mode AUTO HI MED LO At heating Indoor temp Setting temp 5 C Indoor temp Setting temp 5 C Setting temp Indoor temp 5 C Setting temp Indoor temp 5 C HIGH POWER AUTO HI MED LO HIGH POWER AUTO Flap Louver Cooling Up down Swing Heating Wide f...

Страница 38: ...ard the side walls If you set the remote controller installation position keep it so that the air flow is within the range shown in the following figure 1 Setting a If the air conditioning unit is running press the ON OFF button to stop The installation location setting cannot be made while the unit is running b Press the AIR FLOW UP DOWN button and the AIRFLOW LEFT RIGHT button together for 5 sec...

Страница 39: ...ation can be started only when all of the following conditions are met 1 After start of heating operation When it elapsed 45 model 50 60 35 minutes Accumulated compressor operation time 2 After end of defrosting operation When it elapsed 45 model 50 60 35 minutes Accumulated compressor operation time 3 Outdoor heat exchanger sensor TH1 temperature When the temperature has been below 5ºC for 3 minu...

Страница 40: ... between the indoor temperature setting correction temperature and the return air temperature ON OFF OFF OFF OFF OFF ON OFF few minutes ON OFF few minutes ON ON ON OFF Thermostat ON Thermostat OFF Failure Cooling Compressor Indoor fan motor Outdoor fan motor 4 way valve 12 86rps 12 86rps 12 62rps 12 34rps SRK50ZIX S 20 86rps 20 86rps 20 58rps 20 38rps SRK35ZIX S 20 74rps 20 74rps 20 55rps 20 34rps...

Страница 41: ...ps 3 Cooling high pressure control a Purpose Prevents anomalous high pressure operation during cooling b Detector Outdoor heat exchanger sensor TH1 c Detail of operation 53 58 63 Outdoor heat exchanger temperature C 6rps 1 6rps 1 0rps After lapse of 30 sec or over 3 After lapse of 30 sec or over 3 After lapse of 30 sec or over 3 lower limit speed 30 rps Example Fuzzy Notes 1 When the outdoor heat ...

Страница 42: ...re operation during heating b Detector Indoor heat exchanger sensor Th2 c Detail of operation A B C D Indoor heat exchanger temperature C 4rps 1 8rps 2 8rps 2 4rps 1 0rps After lapse of 20 sec or over 3 After lapse of 20 sec or over 3 After lapse of 20 sec or over 3 lower limit speed 30 model 50 60 35 rps Example Fuzzy Notes 1 When the indoor heat exchanger temperature is in the range of B C ºC th...

Страница 43: ...set conditions The outdoor air temperature TH2 is lower than 21ºC model 50 60 16ºC 7 Heating low outdoor temperature protective control Model 20 35 a Operating conditions When the outdoor air temperature TH2 is lower than 10ºC or higher continues for 30 seconds while the compressor command speed is other than 0 rps b Detail of operation The lower limit compressor command speed is change as shown i...

Страница 44: ... controlled not to exceed the upper limit of the setting operation current b Detail of operation Input current to the converter is monitored with the current sensor fixed on the printed circuit board of the outdoor unit and if the operation current value reaches the limiting current value the compressor command speed is reduced If the mechanism is actuated when the compressor command speed is less...

Страница 45: ...mplement the following controls 1 Outdoor heat exchanger temperature 21ºC After the outdoor fan speed drops down to 1 speed for 60 seconds if the outdoor heat exchanger temperature is lower than 21ºC gradually reduce the outdoor fan speed by 1 speed Lower limit 1st speed 2 21ºC Outdoor heat exchanger temperature 38ºC After the outdoor fan speed maintains at A speed for 20 seconds if the outdoor he...

Страница 46: ...crocomputer 58 CONTENTS 1 RANGE OF USAGE LIMITATIONS 1 2 INDOOR UNIT 3 2 1 Wall mounted type SRK 3 1 Specifications 3 2 Exterior dimensions 8 3 Electrical wiring 9 2 2 Floor standing type SRF 10 1 Specifications 10 2 Exterior dimensions 13 3 Electrical wiring 14 1 Exterior dimensions 15 2 Electrical wiring 17 3 OUTDOOR UNIT 15 Series code Inverter type Product capacity Floor standing type Split ty...

Страница 47: ...T WOKFKV UGPUQT CP OQVQT 4QQO VGOR UGPUQT NCR OQVQT 6J 6J 6J KQFG UVCEM 5 WUG QPPGEVQT 0 0 6GTOKPCN DNQEM 6 CORGT OQVQT 5 CORGT CTO OQVQT GUETKRVKQP VGO 8CTKUVQT 8C 8 5㧛0 8C 07 05 06 4 6 5 0 0 0 52 9 4 55 4 8 4 0 7 6 72 59 0 4 6J 1 4 4 7 6 24 06 0 0 4 9 4 9 㧛 V 6J 6J 6J 5 5 5 V V 61 176 114 70 6 6 0 4 㧛0 219 4 9 4 5 5 0 9 4 0 2QYGT UQWTEG RJCUG 8 6 4 5 6 10 59 ...

Страница 48: ... 47 2 Outdoor unit Models SRC25ZIX S 35ZIX S Refer to page 4 Model SRC50ZIX S Refer to page 5 ...

Страница 49: ...cle Cooling cycle Heating cycle Check joint 4way valve Service valve Heat exchanger sensor Th22 TH3 Humidity sensor Th3 Room temp sensor Th1 Room temp sensor Th1 Th21 Gas TH2 Heat exchanger sensor TH1 EEV Capillary tube Heat exchanger Humidity sensor Th3 Heat exchanger sensor Th21 Heat exchanger Flare connection Gas pipie ø12 7 Flare connection Liquid pipe ø6 35 Service valve Liquid Muffler Muffle...

Страница 50: ...7 dB A Cooling Heating Condition ISO T1 JIS C9612 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band Frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 ...

Страница 51: ...ooling Heating Condition ISO T1 JIS C9612 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band Frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 ...

Страница 52: ...oling Heating Condition ISO T1 JIS C9612 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band frequency Hz Sound Pressure Level dB standard 2 10 5 Pa 10 20 30 40 50 60 70 N70 N50 N30 N40 N60 N20 10 20 30 40 50 60 70 63 125 250 500 1000 2000 4000 8000 Mid Octave Band Frequency Hz Sound Pressure Level dB standard 2 10 5 P a 10 20 30 40 50 60 70 N50 N30 N40 N60 N70 N20 ...

Страница 53: ...74 2 81 3 84 2 79 3 92 2 77 4 11 2 88 4 26 2 81 28 3 23 2 65 3 42 2 62 3 66 2 78 3 77 2 77 3 85 2 74 4 04 2 86 4 20 2 78 30 3 14 2 60 3 33 2 58 3 58 2 74 3 70 2 74 3 78 2 71 3 98 2 83 4 13 2 76 32 3 05 2 56 3 24 2 54 3 50 2 71 3 62 2 70 3 70 2 67 3 91 2 80 4 06 2 74 34 2 95 2 51 3 14 2 50 3 41 2 68 3 54 2 67 3 62 2 65 3 84 2 78 4 00 2 72 35 2 91 2 49 3 10 2 47 3 37 2 66 3 50 2 65 3 58 2 63 3 80 2 ...

Страница 54: ...n be secured Where wiring and the piping work will be easy to conduct The place where receiving part is not exposed to the direct rays of the sun or the strong rays of the street lighting A place where it can be easily drained A place separated at least 1m away from the television or the radio To prevent interference to images and sounds Places where this unit is not affected by the high frequency...

Страница 55: ... the right side portions of the sleeve collar Tape only the portion that goes through the wall Always tape the wiring with the piping When drilling the wall that contains a metal lath wire lath or metal plate be sure to use pipe hole sleeve sold separately Drilling of holes and fixture of sleeve Option parts Taping of the exterior Top Indoor side Outdoor side Thicknese of the wall 1 5cm 5 65 Indoo...

Страница 56: ...ng refrigerant from the indoor unit to the outdoor unit when the pipes are removed from the unit How to pump down 1 Connect charge hose to service port of outdoor unit 2 Liquid side Close the liquid valve with hexagon wrench key Gas side Fully open the gas valve Carry out cooling operation If indoor temperature is low operate forced cooling operation 3 After low pressure gauge become 0 01MPa stop ...

Страница 57: ... match the contours of the route that the piping to take Also fix the wiring and pipings to the wall with clamps Fitting 1 Do remove the air filter 2 Cover the body with the front panel 3 Fit the 6 latches in the lower section then 3 latches in the upper section 4 Tighten the 5 set screws 5 Fit the air filter 6 Fit the air inlet panel To close attach the panel after pulling the strings hold the pa...

Страница 58: ... 57 2 5 2 Installation of outdoor unit Models SRC25ZIX S 35ZIX S Refer to page 18 Model SRC50ZIX S Refer to page 25 ...

Страница 59: ...upper air outlet The above illustration shows all controls but in practice only the relevant parts are shown Each time the button is pressed the display is switched over in turn FAN SPEED button This button changes the HIGH POWER ECONOMY mode HI POWER ECONO button These buttons set the indoor temperature These buttons are used for setting the current time and timer function as well TEMPERATURE but...

Страница 60: ...tched off 2 When power failure ocurrs the timer setting is cancelled Once power is resumed reset the timer 3 If the jumper wire J170 AUTO RESTART is cut auto restart is disabled See the diagram at right 2 6 4 Custom cord switching procedure If two wireless remote controller are installed in one room in order to prevent wrong opera tion due to mixed signals please modify the printed circuit board i...

Страница 61: ...election 1 AIR SELECTION button can switch between the combination of upper and lower air outlets and upper air outlet Not operable while the air conditioner is OFF a Each time the AIR SELECTION button is pressed The combination of the upper and lower air outlets and the upper air outlet can be switched b When the upper air outlet is selected AIR OUTLET SELECTION light on the unit display area wil...

Страница 62: ... the upper outlet That state will be maintained until switch is turned off 2 In case both outlets operation with Auto fan speed mode is selected the upper outlet will be kept for ten minutes after the start or until indoor temperature is close to reaching the setting point And then the air outlet will change to both outlets in order to spread comfort air to every corner 2 Sleep timer operation Pre...

Страница 63: ...ions of 1 2 3 and 5 above and the outdoor air temperature is 3 C or less are satisfied note that when the temperature for outdoor heat exchanger sensor TH1 is 5 C or less 62 rps or more 4 C or less less than 62 rps defrost operation is started b Ending conditions Operation returns to the heating cycle when either one of the following is met 1 Outdoor heat exchanger sensor TH1 temperature 13ºC mode...

Страница 64: ...ature Th2 is lower than 5ºC 2 5 minutes after reaching the compressor command speed except 0 rps b Detail of anti frost operation c Reset conditions When either of the following condition is satisfied 1 The indoor heat exchanger temperature Th2 is 8ºC or higher 2 The compressor command speed is 0 rps Indoor heat exchanger temperature ºC 2 5 5 8 0 rps Lower limit speed compressor command speed Note...

Страница 65: ...ure is in the range of 58 63 ºC the speed is reduced by 6 rps at each 30 seconds 2 When the temperature is 63 ºC or higher the compressor is stopped 3 When the outdoor heat exchanger temperature is in the range of 53 58 ºC if the compressor command speed is been maintained and the operation has continued for more than 30 seconds at the same speed it returns to the normal cooling operation Model 4 ...

Страница 66: ...20 sec or over 3 lower limit speed 30 model 50 35 rps Example Fuzzy Temperature list A B C D RPSmin 50 48 53 55 58 50 RPSmin 104 48 5 56 58 61 104 RPSmin 42 1 44 47 3 61 Note 1 RPSmin The lower one between the outdoor speed and the compressor command speed Models 25 35 A B C D RPSmin 88 48 5 56 58 61 88 RPSmin 108 44 51 5 53 5 56 5 108 RPSmin 39 46 5 48 5 51 5 Model 50 6 Heating overload protectiv...

Страница 67: ...l operation 4 6 11 13 Outdoor air temp C 8 Compressor overheat protection a Purpose It is designed to prevent deterioration of oil burnout of motor coil and other trouble resulting from the compressor overheat b Detail of operation 1 Speeds are controlled with temperature detected by the sensor mounted on the discharge pipe Notes 1 When the discharge pipe temperature is in the range of 100 110ºC m...

Страница 68: ...ioning The compressor is stopped if any one of the following in item a b is satisfied Once the unit is stopped by this function it is not restarted a When the input current is measured at 1 A or less for 3 continuous minutes or more b If the outdoor unit sends a 0 rps signal to the indoor unit 3 times or more within 20 minutes of the power being turned on 12 Indoor fan motor protection When the ai...

Страница 69: ...erature is 21ºC 38ºC maintain outdoor fan speed 3 Outdoor heat exchanger tempeature 38ºC After the outdoor fan speed rises up to 1 speed for 60 seconds if the outdoor heat exchanger temperature is higher than 38ºC gradually increase outdoor fan speed by 1 speed Upper limit 3rd speed c Reset conditions When either of the following conditions is satisfied 1 The outdoor air temperature TH2 is 25ºC or...

Страница 70: ... valve open 3 Troubleshooting procedure If the air conditioner does not run at all If the air conditioner does not run at all diagnose the trouble using the following troubleshooting procedure If the air conditioner is running but breaks down proceed to troubleshooting step 4 Important When all the following conditions are met we say that the air conditioner will not run at all a The RUN light doe...

Страница 71: ...uble and perform an operation check The air conditioning system is operating normally Replace the faulty component then perform an operation check Identify the faulty component by using the check procedure corresponding to the content of the trouble Using the Service mode access the self diagnosis displays generated in the past Using the Service mode access the stop history due to protection contr...

Страница 72: ... wire Compressor blockage Trouble of outdoor unit 2 time flash ON When the value of the discharge pipe sensor exceeds the set value The air conditioner stops Gas shortage defective discharge pipe sensor service valve is closed Over heat of compressor ON 5 time flash 6 time flash ON When there is no signal between the indoor PCB and outdoor PCB for 10 seconds or longer when the power is turned on o...

Страница 73: ... stop occurred when the air conditioning system performed protective stops etc in the past Even if stop data alone are generated the system restarts automatically After executing the stop mode while the display is normal the system restarts automatically Data for up to 10 previous occasions are stored Data older than the 10th previous occasion are erased Important In cases where transient stop dat...

Страница 74: ...or stopping display in the past error code Displays the room temperature sensor temperature at the time the error code was displayed in the past Displays the indoor heat exchanger sensor temperature at the time the error code was displayed in the past Displays the remote controller information at the time the error code was displayed in the past Displays the outdoor air temperature sensor temperat...

Страница 75: ...p stop code 2 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 3 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 4 times previous when the air conditioner was stopped by protective stop control Displays the reason for the stop stop code 5 times previous...

Страница 76: ...0 60 115 C OFF 05 5 time flash 35 5 time flash 51 53 1 time flash 80 OFF 42 2 time flash 59 9 time flash 36 6 time flash 37 7 time flash 82 2 time flash 86 6 time flash 85 5 time flash 47 7 time flash 57 7 time flash 3 time flash 84 4 time flash 38 8 time flash 48 8 time flash 58 8 time flash 61 1 time flash 62 2 time flash 39 9 time flash 60 OFF 5 times 3 times 3 times 3 times 2 times Number of f...

Страница 77: ...ot occur Auto recovery occurs d Remote controller information tables 1 Operation switching RUN light Operation switching Display pattern when in service mode Operation switching when there is an abnormal stop 0 1 2 4 3 AUTO DRY COOL FAN HEAT 2 Fan speed switching TIMER light Fan speed switching Display pattern when in service mode Fan speed switching when there is an abnormal stop 0 2 3 4 6 7 AUTO...

Страница 78: ... 46 56 66 76 86 96 57 47 37 27 17 7 7 17 27 37 47 57 67 77 87 97 58 48 38 28 18 8 8 18 28 38 48 58 68 78 88 98 59 49 39 29 19 9 9 19 29 39 49 59 69 79 89 99 No does not sound If no data are recorded error code is normal the display for each sensor becomes as shown below Sensor name Room temperature sensor Indoor heat exchanger sensor Outdoor air temperature sensor Outdoor heat exchanger sensor 64º...

Страница 79: ... 74 94 114 134 56 36 16 16 36 56 76 96 116 136 58 38 18 18 38 58 78 98 118 138 No does not sound If no data are recorded error code is normal the display for each sensor becomes as shown below Sensor name Discharge pipe sensor Sensor value displayed when the error code is normal 64ºC Example Discharge pipe temperature 122ºC In the case of discharge pipe data multiply the reading value by 2 Below 6...

Страница 80: ...emperature sensor on fourth previous occasion Outdoor heat exchanger sensor on fourth previous occasion Discharge pipe sensor on fourth previous occasion Indoor heat exchanger sensor 2 on fouth occasion Error code on fifth previous occasion Room temperature sensor on fifth previous occasion Indoor heat exchanger sensor 1 on fifth previous occasion Remote controller information on fifth previous oc...

Страница 81: ...B normal Normal NO YES YES Correct connector connection Is fan motor resistance value good Defective indoor PCB Replace indoor fan motor Notes 1 See pages 85 for the fan motor and indoor PCB check pro cedure 2 After making sure the fan motor and indoor PCB are nor mal connect the connectors and confirm that the fan motor is turning If power is turned on while one or the other is broken down it cou...

Страница 82: ...ance 1 MΩ or over Check coil wire resistance Model 20 35 1 703Ω or more at 20ºC Model 50 60 0 953Ω or more at 20ºC If check results are normal compressor is locked Compressor lock Compressor wiring short circuit Compressor output is open phase Outdoor PCB is faulty Service valve is closed EEV is faulty Compressor faulty Is there any shortcircuit Does electronic expansion valve operate normally Whe...

Страница 83: ...Error of signal transmission Wiring error including power cable defective indoor outdoor PCB Does error persist after power reset Are the lines connecting the indoor and outdoor units connected normally Is DC 0 Approx 20V detected between terminals on outdoor terminal block YES YES NO NO YES NO Trouble by transient cause not unit trouble Correct improper wire connection on indoor outdoor unit Defe...

Страница 84: ...ce valves Adjust the refrigerant amount properly Defective EEV or outdoor PCB Defective outdoor PCB Correct connection Defective outdoor PCB Is the power supply voltage OK 1 Model 20 35 1 703Ω or more at 20ºC Model 50 60 0 953Ω or more at 20ºC 220V 198 242V 230V 207 253V 240V 216 264V Proper power supply voltages are as follows At the power supply outlet Judgment of refrigerant quantity 1 Phenomen...

Страница 85: ... PCB Sensor Operation mode Phenomenon Shortcircuit Disconnected wire Room temperature sensor Cooling Release of continuous compressor operation command Continuous compressor operation command is not released Heating Continuous compressor operation command is not released Release of continuous compressor operation command Heat exchanger sensor Cooling System can be operated normally Continiuous com...

Страница 86: ...n the following figure are not output at connector pins No and the indoor PCB has failed and the fan motor is normal 2 Fan motor resistance check Notes 1 Remove the fan motor and measure it without power connected to it Notes 2 If the measured value is below the value when the motor is normal it means that the fan motor is faulty FMI DC15V Indoor PCB DC 308 336V DC several V 4 6 V CNU GND Blue Yel...

Страница 87: ...n the AC 300 volt range 1 If there is a self diagnosis display inspect the compressor system burns wiring mistakes etc If no problems are found check the output of the power transistor 2 Output inspection procedure Disconnect the terminals for the compresseor If an output such as the one shown in the figure on the below can be measured the power transistor and the circuit board for the outdoor uni...

Страница 88: ...e resistance value See the section of sensor characteristics on page 80 Inspection power transistor Remove the fasten terminal and test output voltage Inspection of electronic expansion valve Check point of outdoor unit See page 89 Inspection of outdoor fan motor See page 89 Power source and serial signal inspection 1 to 2 AC 220 230 240V 2 to 3 Normal if the voltage oscillates between DC 0 and ap...

Страница 89: ...1 to 2 AC 220 230 240V 2 to 3 Normal if the voltage oscillates between DC 0 and approx 20V CAUTION HIGH VOLTAGE High voltage is produced in the control box Don t touch electrical parts in the control box for 5 minutes after the unit is stopped Color symbol L to N AC 220 230 240V Models SRC50ZIX S 60ZIX S Outdoor unit M T2 T1 S BK WH RD V W U PCB ASSY MAIN M M R TRANSISTOR POWER CIRCUIT SWITCHING P...

Страница 90: ... is detected diagnose which of the outdoor unit fan motor or outdoor PCB is defective Diagnose this only after confirming that the indoor unit is normal 1 Outdoor PCB output check 1 Turn off the power 2 Disconnect the outdoor unit fan motor connector CNFAN 3 When the indoor unit is operated by inserting the power supply plug and pressing ON the backup switch for more than 5 seconds if the voltage ...

Страница 91: ...g Making sure of the refrigerant amount close the valve h Disconnect the charge hose from the unit Cover the valve ports of the refrigerant piping with caps and tighten them securely i Check for gas leakage applying a gas leak detector along the piping line j Start the air conditioner and make sure of its operating condition high side and low side pressures and temperature dif ference between retu...

Страница 92: ...ges Pseudo azeotropic characteristics R410A is a pseudo azeotropic mixed refrigerant composed of two constituents R32 and R125 Quasi azeotropic condition refers to a state in which the dew point curve and boiling point curve gas liquid equilibrium curves pressure constant almost lie on top of each other and a multi constituent refrigerant having this chemical characteristic incurs less composition...

Страница 93: ...ter etc a poisonous gas may occur 5 When an air conditioning system charged with a large volume of refrigerant e g multi type air conditioner is installed in a small room it is necessary to exercise care so that even when refrigerant leaks its concentration does not exceed the marginal level If the refrigerant gas leakage occurs and its concentration exceeds the marginal level an oxygen starvation...

Страница 94: ...ocessing of piping materials When performing the refrigerant piping installation care should be taken to ensure that water or dust does not enter the pipe interior that no other oil other than lubricating oils used in the installed air conditioner is used and that refrigerant does not leak When using lubricating oils in the piping processing use such lubricating oils whose water content has been r...

Страница 95: ...tween flare nut and flare seal surface B A C D Table 7 Flare and flare nut dimensions for R410A Nominal diameter Outer diameter mm Thickness mm Dimension mm Flare nut width A B C D 1 4 6 35 0 8 9 1 9 2 6 5 13 17 3 8 9 52 0 8 13 2 13 5 9 7 20 22 1 2 12 7 0 8 16 6 16 0 12 9 23 26 unit mm Nominal diameter Outer diameter mm Thickness mm A mm Flare tool for R410A Clutch type Conventional flare tool Clu...

Страница 96: ...ess stated in Table 3 see page 92 and which contains less contaminants It is necessary to carefully treat store copper pipes so that they are not collapsed deformed or damaged Due care must also be exercised so that foreign matters such as dust and water do not enter the pipe interior A piping set s open end is sealed with a cap etc When storing it make sure that it is sealed securely When storing...

Страница 97: ...g the connected parts As brazing is molten between the joined surfaces to yield high adhesive strength it is necessary to secure a wide enough space to be joined and also an adequate clearance between the joined surfaces Copper pipe joints minimum insertion depths outer pipe diameters and clearances between outer and inner pipe diameters are as shown in Table 10 In the case of bronze brazing fille...

Страница 98: ...potassium fluoride potas sium chloride and sodium fluoride to the borax boric acid compound Cautions Remove the flux after brazing When chlorine contained in the flux stays within the pipe the lubricating oil deteriorates So use a flux which does not contain chlorine When adding water to the flux use water which does not contain chlorine e g distilled water or ion exchange water 4 Brazing As brazi...

Страница 99: ... cloth and 3 by means of heat absorbent Movement during brazing Eliminate all vibration during brazing to protect brazed joints from cracking and breakage Oxidation preventive In order to improve the brazing efficiency various types of antioxidant are available on the market However the con stituents of these are widely varied and some are anticipated to corrode the piping materials or adversely a...

Страница 100: ...wo types of electronic balance for refrigerant charging are available one for 10kg cylinder and the other for 20kg cylinder Electronic balance for 10kg cylinder precision 2g Electronic balance for 20kg cylinder precision 5g Refrigerant is charged manually by opening closing the valve d Torque wrench for nominal diameters 1 2 and 5 8 Along with changes in flare nut sizes for enhanced pressure resis...

Страница 101: ... for refrigerant cylinder According to the charge hose s cap size a charge port with 1 2 UNF 20 threads per inch and corresponding packing are required j Gas leakage detector A high sensitivity gas leakage detector exclusive for HFC refrigerant is used In the case of R410A the detection sensitivity is about 23g per year 2 General tools a Vacuum pump b Torque wrench for 1 4 opposite side 17 mm for ...

Страница 102: ... cylinder and electronic balance s connecting port Caution Be sure to make setting so that liquid can be charged When using a cylinder equipped with a siphon liquid can be charged without turning it upside down b Connect the gauge manifold s charge hose to the electronic balance s connecting port c Open the refrigerant cylinder s valve and after opening the charging valve a little close it d After...

Страница 103: ...e Remove the indoor outdoor units Caution When storing the indoor unit piping in its original position be careful not to break the piping 2 Installing the unit a Proceed with the installation following the steps described in 4 3 2 New installation work 4 3 4 Replacing the unit Never use the existing refrigerant piping Use a brand new refrigerant piping 1 when replacing the air conditioner using th...

Страница 104: ...vercharge preventing function float switch moisture indicator drier and other accessory functions should be adjusted or replaced where necessary Electrical circuit b Checking the accessories to the refrigerant recovering equipment 2 Preparations for recovering procedures a Installation of refrigerant recovering equipment Install the equipment in a place which satisfies the following requirements a...

Страница 105: ...ssories tools are required Shown below are standard accessories 1 Recovering cylinder Use a recovering cylinder designated by the equipment manufacturer A detachable cylinder must be such that it complies with the laws and regulations concerned Do not use an ordinary cylinder as a recovering cylinder Note 1 A cylinder available when R410A was purchased is a borrowed one Note 2 As a cylinder availa...

Страница 106: ... piercing valve a A tool used to make a hole for recovery in the copper pipe when recovering R410A from equipment which has no port for charging or recovering gas Various types are available on the market and given various names b As the piercing edge tends to wear it is necessary to treat this valve as semi expendables c As vacuum rises air tends to be inhaled from the hole So care must be exerci...

Страница 107: ...ONER Air Conditioning Refrigeration Systems Headquarters 16 5 2 chome Kounan Minato ku Tokyo 108 8215 Japan Fax 03 6716 5926 Because of our policy of continuous improvement we reserve the right to make changes in all specifications without notice updated 24 April 2009 ...

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