Sanyo 85464359982001 installation instructions 07-007 W-2WAYIINA 1/23/07 609 PM

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07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 81

8-6. Caution for Pump Down

Pump down means refrigerant gas in the system is returned to the outdoor unit. Pump down is used when the unit is to be moved, or before servicing the refrigerant circuit.

(Refer to the Service Manual)

CAUTION

●This outdoor unit cannot collect more than the rated refrigerant amount as shown by the nameplate on the back.

●If the amount of refrigerant is more than that recommended, do not conduct pump down. In this case use another refrigerant collecting system.

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Contents Outdoor Units R410A Models Indoor UnitsOptional Controllers Gunma, Japan…In Moist or Uneven Locations …In a Room…In an Area with High Winds …In a Snowy Area for Heat Pump-type SystemsCheck of Density Limit Be sure to recharge the refrigerant only in liquid form Care regarding tubingDifferent tools required NewUse R410A exclusive cylinder only Compressor specifications are differentSingle-outlet valve Existing tubing cannot be used especially R22Contents AIR Purging HOW to Process TubingAir Purging with a Vacuum Pump for Test Run Preparation Test RUNOutdoor Unit Part name General’ty Model 10 hp 16 hp4-Way Air Discharge Semi-Concealed 1-Way Air Discharge Semi-ConcealedConcealed Duct Concealed Duct High-Static Pressure Ceiling-MountedWall-Mounted Contents MarkLength ft 10 Main Tubing Size After Distribution LB, LC Tubing Size Main Tubing Size LA11 Outdoor Unit Tubing Connection Size a BTU/h 28.0 45.013 Straight Equivalent Length of Joints Straight Equivalent Length of JointsAdditional Refrigerant Charge 16 Refrigerant Charge Amount at Shipment for outdoor unitWhen using ball valve When not using ball valveTube branching methods horizontal use Model name Cooling capacity after distribution Remarks Optional Distribution Joint KitsTubing size with thermal insulation Example232,000 BTU/h 68.0 kW Main tubing Distribution joint tubing ExampleMain tubing Indoor Unit Selecting the Installation SiteFront view Side viewOutdoor Unit Installation SpaceLeave space open above UnitShield for Horizontal Exhaust Discharge Precautions When Installing in Heavy Snow AreasAir direction Front direction Unit installationAir direction Placing the Unit Inside the Ceiling Suspending the Indoor Unit12, 18, 24 12, 18Installing the Drain Piping Start when you short the pin Be careful since the fan willOn the indoor control board Removing the corner cover Panel installation locations so that the panel is Installing the Ceiling PanelAttached tightly to the unit. Fig Check that the panel is attached tightly toWiring the Ceiling Panel When Removing the Ceiling Panel for Servicing Checking After InstallationAdjusting the Auto Flap Special Remarks DC Fan Tap Change Procedure29/64 Full-scale Installation diagram Suspension lug 25/32 1 Installing the Drain Piping Be careful since the fan will start When you short the pin on the indoorControl board Bottom drain port is for use onlyWiring Electrical Power Wiring Wiring connectionsAppearance Part name AppearanceRemoving the side panel Removing the intake grilleAdjust so that there is no gap Installing the intake grille Installing the side panel and intake grilleOther Check after installation If a wireless remote controller is usedType Length 62 and -4 show the detailed dimensions of the indoor unitPrevious page. -61 and Table Suspension bolts referring to the dimensional data onTubing must be laid and connected inside the ceiling when Unit inside the ceilingIndoor unit Do not use adhesive at the drain connection port onDo not use the supplied drain hose bent at a 90 angle Maximum permissible bend isHow to read the diagram Be careful since the fan will start when youShort the pin on the indoor control board Increasing the Fan SpeedMinimum space for installation and service is shown This air conditioner is usually installed above the ceilingSo that the indoor unit and ducts are not visible. Only Air intake and air outlet ports are visible from belowIt is important that you use extreme care Enough to suport the weight of the unitSupporting the indoor unit inside Ceiling. Ensure that the ceiling is strongIndoor Fan Performance How to Read the Diagram Refrigerant tubing drain hose position ServiceWall and ceiling side opening position Weight of the unit. BeforeIt is important that you use Extreme care in supportingInside Duct for Fresh Air Shaping the TubingRear outlet port When removing the fastening How to carry out power supply wiringRegulations before wiring Bracket from the coverSelecting and Making a Hole If the Wall is Brick, Concrete or Similar Removing the Grille to Install the Indoor UnitRemoving the grille Attaching the grilleShaping the Tubing Right-rear tubing Installing the Drain HoseLeft or left-rear tubing Unit are completedKHX0752 / 0952 / 1252 HOW to Install the Outdoor Unit Installing the Outdoor UnitTransporting Routing the Tubing Prepare the Tubing Connect the TubingRefrigerant tubing Connection method Supplied parts used? Tightening torque for each cap Refrigerant tube portWork method Cap tightening torqueElectrical Wiring General Precautions on WiringInter-outdoor unit control wiring U, D, T Type Wiring System DiagramOutdoor unit Indoor unit Shielded wire GroundGround How to connect wiring to the terminal For stranded wiringConnecting the Refrigerant Tubing Use of the Flaring Method HOW to Process TubingFlaring Procedure with a Flare Tool Deburring870 Lbs · inch Over 5/128 1000 1200 kgf · cm Tube diameter Tightening torque Tube thickness ApproximateThree tubes arranged together Two tubes arranged togetherInsulating the Refrigerant Tubing Tubing Insulation Insulation materialTaping the Tubes Finishing the InstallationAir Purging with a Vacuum Pump for Test Run Preparation Bottom when you pressurizeLeak test Use a manifold valve for air purging45 min. or more 90 min. or more EvacuationUse a cylinder designed for use With R410A respectively Charging additional refrigerantFinishing the job Test RUN Items to Check Before the Test Run Test Run ProcedureMain Outdoor Unit PCB Setting Examples of the No. of outdoor units settings S006 Indoor unit setting S004 Rotary switch, red3P DIP switch, blue Address setting of main outdoor unit S007 Unit No. settingAuto Address Setting Basic wiring diagram Example Automatic Address Setting from the Outdoor UnitCase 22-9 Automatic Address Setting from Outdoor Unit Case 2 Automatic Address Setting no compressor operationAutomatic Address Setting in Heating Mode Automatic Address Setting from Outdoor UnitCase 3A Automatic Address Setting in Cooling Mode Automatic Address Setting* from the Remote ControllerCase 3B On outdoor main unit PCB Display during automatic address settingIf 1 indoor unit is connected to 1 remote controller Remote Controller Test Run SettingsChecking the indoor unit addresses 07-007 W-2WAYIINA 1/23/07 609 PM Possible cause of malfunction Alarm contentsAlarm Alarm messages displayed on system controller Care and Cleaning AppendixName of Parts Should the power fail while the unit is running TroubleshootingLatch Air intake Safety chain Grille Bolt screws Tips for Energy SavingWater drain Air outlet Air intake Ceiling panel optional Type 1-WAYTroubleshooting Type standard static pressure Type high static pressure Concealed Duct High-Static Pressure Type U, D TypeTroubleshooting Air intake grille air intake Components and cause an electric shock hazardOr soot Type Wall-Mounted Tips for Energy Saving