Sanyo 85464359982001 installation instructions Electrical Wiring, General Precautions on Wiring

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07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 59

5. ELECTRICAL WIRING

5-1. General Precautions on Wiring

(1)Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram.

(2)Provide a power outlet to be used exclusively for each unit, and a power supply disconnect and circuit breaker for overcurrent protection should be provided in the exclusive line.

(3)To prevent possible hazards from insulation failure, the unit must be grounded.

(4)Each wiring connection must be done in accordance with the wiring system diagram. Wrong wiring may cause the unit to misoperate or become damaged.

(5)Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan.

(6)Unauthorized changes in the internal wiring can be very dangerous. The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes.

(7)Regulations on wire diameters differ from locality to locality. For field wiring rules, please refer to your LOCAL ELECTRICAL CODES before beginning. You must ensure that installation complies with all relevant rules and regulations.

(8)To prevent malfunction of the air conditioner caused by electrical noise, care must be taken when wiring as follows:

The remote control wiring and the inter-unit control wiring should be wired apart from the inter-unit power wiring.

Use shielded wires for inter-unit control wiring between units and ground the shield on both sides.

(9)If the power supply cord of this appliance is damaged, it must be replaced by a repair shop appointed by the manufacturer, because special purpose tools are required.

5-2. Recommended Wire Length and Wire Diameter for Power Supply System Outdoor unit

Type

(A) Power supply

 

Time delay fuse or

 

Wire size

Max. length

circuit capacity

 

 

 

 

 

 

 

CHDX09053

AWG #8

64 ft.

 

60 A

CHDX14053

AWG #4

100 ft.

 

80 A

 

 

 

 

 

 

 

Indoor unit

 

 

 

 

 

 

 

 

 

 

Type

(B) Power supply

 

Time delay fuse or

 

AWG #14

 

circuit capacity

 

 

 

 

 

 

 

 

 

 

K

Max. 492 ft.

 

 

15 A

 

 

 

 

 

 

 

A, X, T, U

Max. 426 ft.

 

 

15 A

 

 

 

 

 

 

 

D

Max. 196 ft.

 

 

15 A

 

 

 

 

 

 

 

 

Control wiring

(C) Inter-unit (between outdoor and

(D) Remote control wiring

(E) Control wiring for group control

indoor units) control wiring

 

 

 

 

 

AWG #18 (0.75 mm2)

AWG #18 (0.75 mm2)

AWG #18 (0.75 mm2)

Use shielded wiring*

Use shielded wiring

Use shielded wiring

 

 

 

Max. 3,280 ft.

Max. 1,640 ft.

Max. 1,640 ft. (Total)

 

 

 

NOTE

* With ring-type wire terminal.

(F) Inter-outdoor unit control wiring

AWG #18 (0.75 mm2)

Use shielded wiring

Max. 1,640 ft.

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Contents Gunma, Japan R410A Models Indoor UnitsOutdoor Units Optional Controllers…In a Snowy Area for Heat Pump-type Systems …In a Room…In Moist or Uneven Locations …In an Area with High WindsCheck of Density Limit New Care regarding tubingBe sure to recharge the refrigerant only in liquid form Different tools requiredExisting tubing cannot be used especially R22 Compressor specifications are differentUse R410A exclusive cylinder only Single-outlet valveContents Test RUN HOW to Process TubingAIR Purging Air Purging with a Vacuum Pump for Test Run PreparationModel 10 hp 16 hp GeneralOutdoor Unit Part name ’tyConcealed Duct 4-Way Air Discharge Semi-Concealed1-Way Air Discharge Semi-Concealed Wall-Mounted Concealed Duct High-Static PressureCeiling-Mounted Length ft ContentsMark 28.0 45.0 Tubing Size Main Tubing Size LA10 Main Tubing Size After Distribution LB, LC 11 Outdoor Unit Tubing Connection Size a BTU/h16 Refrigerant Charge Amount at Shipment for outdoor unit Straight Equivalent Length of Joints13 Straight Equivalent Length of Joints Additional Refrigerant ChargeTube branching methods horizontal use When using ball valveWhen not using ball valve Example Optional Distribution Joint KitsModel name Cooling capacity after distribution Remarks Tubing size with thermal insulation232,000 BTU/h 68.0 kW Main tubing Distribution joint tubing ExampleMain tubing Side view Selecting the Installation SiteIndoor Unit Front viewUnit Installation SpaceOutdoor Unit Leave space open aboveShield for Horizontal Exhaust Discharge Precautions When Installing in Heavy Snow AreasAir direction Front direction Unit installationAir direction 12, 18 Suspending the Indoor UnitPlacing the Unit Inside the Ceiling 12, 18, 24Installing the Drain Piping On the indoor control board Start when you short the pinBe careful since the fan will Removing the corner cover Check that the panel is attached tightly to Installing the Ceiling PanelPanel installation locations so that the panel is Attached tightly to the unit. FigWiring the Ceiling Panel Special Remarks DC Fan Tap Change Procedure Checking After InstallationWhen Removing the Ceiling Panel for Servicing Adjusting the Auto Flap29/64 Full-scale Installation diagram Suspension lug 25/32 1 Installing the Drain Piping Bottom drain port is for use only When you short the pin on the indoorBe careful since the fan will start Control boardAppearance Electrical Power Wiring Wiring connectionsWiring Appearance Part nameRemoving the side panel Removing the intake grilleAdjust so that there is no gap If a wireless remote controller is used Installing the side panel and intake grilleInstalling the intake grille Other Check after installationType Length 62 and -4 show the detailed dimensions of the indoor unitUnit inside the ceiling Suspension bolts referring to the dimensional data onPrevious page. -61 and Table Tubing must be laid and connected inside the ceiling whenMaximum permissible bend is Do not use adhesive at the drain connection port onIndoor unit Do not use the supplied drain hose bent at a 90 angleIncreasing the Fan Speed Be careful since the fan will start when youHow to read the diagram Short the pin on the indoor control boardAir intake and air outlet ports are visible from below This air conditioner is usually installed above the ceilingMinimum space for installation and service is shown So that the indoor unit and ducts are not visible. OnlyCeiling. Ensure that the ceiling is strong Enough to suport the weight of the unitIt is important that you use extreme care Supporting the indoor unit insideIndoor Fan Performance How to Read the Diagram Refrigerant tubing drain hose position ServiceExtreme care in supporting Weight of the unit. BeforeWall and ceiling side opening position It is important that you useInside Rear outlet port Duct for Fresh AirShaping the Tubing Bracket from the cover How to carry out power supply wiringWhen removing the fastening Regulations before wiringSelecting and Making a Hole Attaching the grille Removing the Grille to Install the Indoor UnitIf the Wall is Brick, Concrete or Similar Removing the grilleUnit are completed Installing the Drain HoseShaping the Tubing Right-rear tubing Left or left-rear tubingKHX0752 / 0952 / 1252 Transporting HOW to Install the Outdoor UnitInstalling the Outdoor Unit Routing the Tubing Refrigerant tubing Connection method Supplied parts used? Prepare the TubingConnect the Tubing Cap tightening torque Refrigerant tube portTightening torque for each cap Work methodInter-outdoor unit control wiring Electrical WiringGeneral Precautions on Wiring U, D, T Type Wiring System DiagramOutdoor unit Indoor unit Shielded wire GroundGround How to connect wiring to the terminal For stranded wiringDeburring HOW to Process TubingConnecting the Refrigerant Tubing Use of the Flaring Method Flaring Procedure with a Flare Tool870 Lbs · inch Over 5/128 1000 1200 kgf · cm Tube diameter Tightening torque Tube thickness ApproximateInsulation material Two tubes arranged togetherThree tubes arranged together Insulating the Refrigerant Tubing Tubing InsulationTaping the Tubes Finishing the InstallationUse a manifold valve for air purging Bottom when you pressurizeAir Purging with a Vacuum Pump for Test Run Preparation Leak test45 min. or more 90 min. or more EvacuationFinishing the job Use a cylinder designed for use With R410A respectivelyCharging additional refrigerant Test RUN Items to Check Before the Test Run Test Run ProcedureMain Outdoor Unit PCB Setting Address setting of main outdoor unit S007 Unit No. setting Indoor unit setting S004 Rotary switch, redExamples of the No. of outdoor units settings S006 3P DIP switch, blueCase Auto Address Setting Basic wiring diagram ExampleAutomatic Address Setting from the Outdoor Unit 22-9 Automatic Address Setting from Outdoor Unit Case 2 Automatic Address Setting no compressor operationCase 3A Automatic Address Setting in Heating ModeAutomatic Address Setting from Outdoor Unit Case 3B Automatic Address Setting in Cooling ModeAutomatic Address Setting* from the Remote Controller On outdoor main unit PCB Display during automatic address settingChecking the indoor unit addresses If 1 indoor unit is connected to 1 remote controllerRemote Controller Test Run Settings 07-007 W-2WAYIINA 1/23/07 609 PM Possible cause of malfunction Alarm contentsAlarm Alarm messages displayed on system controller Name of Parts Care and CleaningAppendix Tips for Energy Saving TroubleshootingShould the power fail while the unit is running Latch Air intake Safety chain Grille Bolt screwsWater 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