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En-5

Optional parts

21 41

CAUTION

The following parts are optional parts specific to R410A refrigerant.
Do not use parts other than those listed below.

Refer to the installation manual for the Branch box and the Separation tubes.

Parts name

Model name

Separation tube

UTP-SX248A

Branch box

Primary

UTP-PU03A

Secondary

UTP-PU03B

External connect kit

(for External input/output)

UTY-XWZXZ3

External connect kit

(for Base heater)

UTY-XWZXZ4

Operating range

21 51

Operating range

Temperature

Indoor air intake

Outdoor air intake

Cooling

Maximum

90 °F DB

115 °F DB

Minimum

64 °F DB

23 °F DB

Heating

Maximum

88 °F DB

75 °F DB

Minimum

60 °F DB

5 °F DB

Indoor humidity about 80% or less

9379069342-02_IM.indb 5

17/5/2556 11:49:26

Содержание AOU48RLXFZ1

Страница 1: ...Opening a knockout hole 13 5 2 Separation tube connection 14 5 3 Flare connection pipe connection 14 6 ELECTRICAL WIRING 6 1 The precautions of electrical wiring 17 6 2 Knockout hole 18 6 3 Electrical requirement 18 6 4 Unit wiring 19 6 5 Wiring method 20 6 6 Connecting of wiring 21 7 PIPE INSTALLATION II 7 1 Sealing test 22 7 2 Vaccum process 23 7 3 Additional charging 24 7 4 Refrigerant recovery...

Страница 2: ...s Connect all wiring tightly Loose wiring may cause overheating at connec tion points and a possible fire hazard WARNING CAUTION 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 aluminum fins on the air conditioner can cut your fingers When Installing In a Ce...

Страница 3: ...en referred to in other countries as an ELCB earth leakage current breaker to reduce the risk of leaking current which may result in electric shock or potential fire WARNING 1 For the air conditioner to operate satisfactorily install it as outlined in this installation manual 2 Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts This install...

Страница 4: ...quid phases And always charge from the liquid phase where refrigerant composition is stable Special tools for R410A 222222 Tool name Contents of change Gauge manifold Pressure is high and cannot be measured with a conventional R22 gauge To prevent erroneous mixing of other refrigerants the diameter of each port has been changed It is recommended the gauge with seals 0 1 to 5 3 MPa 30in Hg to 768 p...

Страница 5: ...ts name Model name Separation tube UTP SX248A Branch box Primary UTP PU03A Secondary UTP PU03B External connect kit for External input output UTY XWZXZ3 External connect kit for Base heater UTY XWZXZ4 Operating range 222222 Operating range Temperature Indoor air intake Outdoor air intake Cooling Maximum 90 F DB 115 F DB Minimum 64 F DB 23 F DB Heating Maximum 88 F DB 75 F DB Minimum 60 F DB 5 F DB...

Страница 6: ...t come with them When installing just 1 branch box be sure to use the primary unit When installing multiple branch boxes use both the primary unit and secondary units together Breaker2 Circuit breaker MOCP Maximum Over Current Protection Breaker1 Earth leakage breaker Branch box Secondary2 Breaker2 Breaker2 Breaker2 Breaker2 Breaker1 Breaker1 Breaker1 Breaker1 Indoor unit Indoor unit Indoor unit I...

Страница 7: ...vapors or the risk of the leakage of flammable gas in the vicinity Area where small animals may live It may cause failure smoke or fire if small animals enter and touch internal electrical parts Area where animals may urinate on the unit or ammonia may be generated Please install the outdoor unit without slant Install the outdoor unit in a well ventilated location away from rain or direct sunlight...

Страница 8: ...f 35 C DB 95 F DB at the air intake of the outdoor unit Provide more space around the air intake than shown in the examples if the ambient temperature exceeds 35 C DB 95 F DB or if the thermal load of all of the outdoor units exceeds the capacity Consider the transportation route installation space maintenance space and access and install the unit in a location with sufficient space for the refrig...

Страница 9: ...utdoor unit installation 333333333 Provide at least 25mm 1in of space between the outdoor units if multiple units are installed When routing the piping from the side of an outdoor unit provide space for the piping No more than 3 units must be installed side by side When 3 units or more are arranged in a line provide the space as shown in the following example when an obstruction is present also in...

Страница 10: ...s indicated with arrows in the figure To reduce vibration do not install the unit directly on the ground Install it on a secure base such as concrete blocks The foundation shall support the legs of the unit and have a width of 50mm 1 31 32in or more Depending on the installation conditions the outdoor unit may spread its vibration during operation which may cause noise and vibration Therefore atta...

Страница 11: ...5 or more 16 30 or less 98 30 or less 98 15 or less 49 15 or less 49 5 or more 16 H4 a d Pipe limitation H1 a Outdoor Unit b c d e Branch Box f h g i k j l m H2 H3 H4 Indoor Unit1 Indoor Unit2 Branch Box Branch Box Separation Tube Primary Secondary1 Secondary2 Indoor Unit3 Indoor Unit4 Indoor Unit5 Indoor Unit6 Indoor Unit7 Indoor Unit8 Limitation m ft Diagram Allowable pipe length actual pipe len...

Страница 12: ...at the amount of residual oil is less than 40mg 10m 0 004oz 100ft Do not use copper pipes having a collapsed deformed or discolored portion especially on the interior surface Otherwise the expansion valve or capillary tube may become blocked with contaminants As an air conditioner using R410A incurs pressure higher than when using conventional refrigerant R22 it is necessary to choose adequate mat...

Страница 13: ...ole Pipes can be connected from 4 directions front lateral side rear side and bottom Fig A When connecting at the bottom remove the service panel and piping cover on the front of the outdoor unit and open the knockout hole provided at the bottom corner of the piping outlet It can be installed as shown on Fig B cutting out the 2 slits as indicated on Fig C When cutting slits use a steel saw Service...

Страница 14: ... caused if the straight part is short For details refer to the Installation Manual of separation tubes CAUTION Separation tube A A B A B A B Horizontal line OK Horizontal Vertical or NO GOOD 15 A Outdoor unit or Separation tube B Branch box or Separation tube Name and shape Liquid pipe Gas pipe Flare connection pipe connection 555555 CAUTION Do not use mineral oil on a flared part Prevent mineral ...

Страница 15: ...across flats Bending pipes 555555555 CAUTION To prevent breaking of the pipe avoid sharp bends Bend the pipe with a radius of curvature of 100mm 4in or more If the pipe is bent repeatedly at the same place it will break If pipes are shaped by hand be careful not to collapse them Do not bend the pipes at an angle of more than 90 When pipes are repeatedly bent or stretched the material will harden m...

Страница 16: ...o 18 11 8 to 13 3 9 52 3 8 dia 32 to 42 23 6 to 31 0 12 70 1 2 dia 49 to 61 36 1 to 45 0 15 88 5 8 dia 63 to 75 46 5 to 55 3 19 05 3 4 dia 90 to 110 66 4 to 81 1 Handling precautions for the valves 555555555 Mounted part of Blank cap is sealed for protection Fasten blank cap tightly after opening valves Operating the valves Use a hexagon wrench size 4mm 5 32in Opening 1 Insert the hexagon wrench i...

Страница 17: ...re to perform grounding work Improper grounding work can cause electric shocks CAUTION The primary power supply capacity is for the air conditioner itself and does not include the concurrent use of other devices Do not use crossover power supply wiring for the outdoor unit If the electrical power is inadequate contact your electric power company Install a breaker in a location that is not exposed ...

Страница 18: ...to install a breaker of the specified capacity Regulation of cables and breaker differs from each locality refer in accordance with local rules Voltage rating 1Φ 208 230V 60Hz Operating range 187 264V Cable Cable size 1 Remarks Power supply cable 8AWG 2 cable Ground 1 Ø 208 230V Connection cable 14AWG 3 cable Ground 1 Ø 208 230V Selected sample Select the correct cable type and size according to t...

Страница 19: ...em securely and fasten them so that there is no stress placed on the terminals 4 Use an appropriate screwdriver to tighten the terminal screws Do not use a screwdriver that is too small otherwise the screw heads may be damaged and prevent the screws from being properly tightened 5 Do not tighten the terminal screws too much otherwise the screws may break 6 See the table below for the terminal scre...

Страница 20: ...or unit unit Indoor unit OUTDOOR UNIT INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C Indoor Disconnect switch POWER REMOTE CONTROL BRANCH BOX INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C REMOTE CONTROL INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C REMOTE CONTROL BRANCH BOX BRANCH BOX Optional terminal Optional terminal BRANCH BOX1 BRANCH BOX2 Breaker2 Breaker1 Single phase 208 230V 60Hz POWER Breaker2 Breaker...

Страница 21: ...rmly secure the binders so that the wire terminals will not receive external stress Please remove the excess Binder Service cover Terminal block Binder Accessory 3 Secure the cables using the binders under the terminal blocks and then secure the cables using the binders attached to the base of the valves Binder Accessory Binder 4 Be sure to install the insulation sheet after the wiring is complete...

Страница 22: ...ot bury the piping of the outdoor unit After connecting the pipes perform a sealing test Make sure that the 3 way valves are closed before performing a sealing test Pressurize nitrogen gas to 4 15MPa 600psi to perform the sealing test Add nitrogen gas to both the liquid pipes and the gas pipes Check all flare connections and welds Then check that the pressure has not decreased Compare the pressure...

Страница 23: ...uid pipes Remove the charging port cap and connect the gauge manifold and the vacuum pump to the charging valve with the service hoses Vacuum the indoor unit and the connecting pipes until the pressure gauge indicates 0 1 MPa 500microns When 0 1 MPa 500microns is reached make sure it hold vacuum for 60 minutes Disconnect the service hoses and fit the charging port cap to the charging valve to the ...

Страница 24: ...ion formula indicated below Remove the charging hose and install the charging cap Remove the blank caps gas pipe liquid pipe and open the valves Close the blank caps After adding refrigerant indicate the added charging volume on the unit Tighten the blank caps and charging caps to the torque values specified To open and close the valves use an M4 5 32in hexagon wrench for liquid and gas pipes Calc...

Страница 25: ...to F3 by pushing the SELECT button Press the ENTER button Match the 7 seg display to 21 by pushing the SELECT button Press the ENTER button for about 5 seconds Turn off the power supplies of all units when P oFF is displayed Perform the refrigerant recovery with the refrigerant recovery machine It can not be operated in the P oFF state Please turn on the power supplies of all units again in case o...

Страница 26: ...5 19 32 19 3 4 15 88 5 8 10 13 32 12 15 32 16 5 8 20 25 32 If the ambient temperature and relative humidity exceed 32 C 89 F increase the level of heat insulation for the refrigerant pipes Filling with putty 777777 WARNING Fill the piping holes with putty supplied locally to avoid any gap Fig A If small animals such as insects enter the external unit a short circuit may be caused near electrical c...

Страница 27: ...heck that the operation of the outdoor unit has stopped be sure to stop the operation if it is still running and turn off the power 2 Remove the front panel of the outdoor unit and remove the lid of the electrical component box in order to expose the printed circuit board 3 Turn on the power of the outdoor unit As shown in the above figure make sure that the POWER MODE indicator lamp LED981 is on ...

Страница 28: ...tion mode which is set first Priority given to external input of outdoor unit Priority is given to the operation mode which is set by the external input terminal CN932 Priority given to external input of outdoor unit 0 1 28 Forbidden Forbidden 2 8 0 0 Setting forbidden 0 1 29 Forbidden Forbidden 2 9 0 0 Setting forbidden 0 1 30 Energy saving level setting Level 1 stop 3 0 0 0 The capacity limit ca...

Страница 29: ...er the setting the display will return to 2 Setting the first 2 digits If there is no operation for 5 seconds after the setting the display will return to 2 Setting the first 2 digits Press the MODE EXIT button to cancel the setting mode Setting is complete when the lamp lights up Setting is complete when the lamp lights up Press the ENTER button for more than 3 seconds Press the ENTER button for ...

Страница 30: ...e all indoor units turned off Remote controller Restrictions applicable when performing the Check run 999999999 When the Check run starts all indoor units connected to the outdoor unit will start to run automatically During the Check run you cannot check the operation of the indoor units separately After the Check run check the operation of the indoor units separately in normal operation The opera...

Страница 31: ...ble and go to 1 4 Press and hold the CHECK button again for more than 3 seconds The Check run will start In the Check run the following items will be checked 1 The wiring and piping between the indoor units and the Branch box 2 Valve opening To make a n enforced stop press the MODE EXIT button You cannot execute the stop operation using the remote control To prevent electric shock close the servic...

Страница 32: ...or may have come out of its holder or a coil may have come out of an expansion valve In this case please contact Service personnel example Wiring error A wiring error has occurred The location at which the wiring error has been deter mined will be displayed on the 7 seg display If there are multiple wiring error locations the display will cycle through the locations switching every 2 seconds After...

Страница 33: ...nutes for the system to start operating after settings for the test run are complete After the test run settings are complete all the outdoor units and the connected indoor units will start operating Room temperature control will not activate during test run continuous operation Test run set with the outdoor unit doesn t stop automatically Be sure to stop the operation according to the operation m...

Страница 34: ...be displayed after 5 seconds This will be displayed when the cooling test run starts This will be displayed when the cooling operation mode is canceled This will be displayed when the heating operation mode is canceled This will be displayed when the heating test run starts Press the MODE EXIT button Press the SELECT button Press the ENTER button First 2 digits Last 2 digits Blinking Blinking Blin...

Страница 35: ...Binder accessory outdoor unit Pass the cable through the as yet unused knockout hole Please protect the cable with the edge of knockout hole to avoid damage Seal the knockout hole that passes the cable with putty so that there is no gap cable External input 1111111 Wiring of connector 1111111111 ON OFF of the Low noise mode External input priority mode Peak cut mode and Stop operation mode functio...

Страница 36: ...ion settings Input Signal ON Heating operation OFF Cooling operation Peak cut mode CN933 1111111111 Operation that suppressed the current value can be performed by means of the connected unit The air conditioner is set to the Peak cut mode by applying the contact input of a commercial ON OFF switch to a connector on the outdoor control PC board Input Signal Peak cut mode ON ON OFF OFF Set the Peak...

Страница 37: ...ormal OFF Compressor status output CN952 1111111111 Compressor operation status signal is produced when the compressor is running Comressor status Output signal Operation ON Stop OFF Base heater 1111111111 A Base heater is a heating element that may be installed to melt the ice that may accumulate in the condenser drain pan When installing connection cable specified part optional parts must be use...

Страница 38: ...hermistor error E 1 5 6 Check run unfinished E 8 2 1 Sub cool heat EX gas inlet thermistor error E 2 1 2 Number of wires and pipes error E 8 2 2 Sub cool heat EX gas outlet thermistor error E 2 2 1 Indoor unit capacity error E 8 3 1 Liquid pipe thermistor error E 2 4 2 Number of indoor units error E 8 4 1 Current sensor error E 2 4 3 Number of Branch boxes error E 8 6 1 Discharge pressure sensor e...

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