Sanyo KMS2472, KMS1872 service manual Wiring Instructions for Inter-unit Connections

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3-7. Wiring Instructions for Inter-unit Connections

(1)Insert the inter-unit wiring (according to local codes) into the through-the-wall PVC pipe. Run the wiring toward the indoor side allowing approx. 10" (25 cm) to extend from the wall face. (Fig. 24)

(2)Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you.

(3)Remove the screw on the right side cover plate and open the cover. (Fig. 25)

(4)Route the inter-unit wiring from the back of the indoor unit and pull it toward the front for connec- tion. (Figs. 26a and 26b)

(5)Connect the inter-unit wiring to the corresponding terminals on the terminal plate (Figs. 26a and 26b) while referring to the wiring diagram.

(6)Be sure to secure the wiring with the provided clamp.

NOTE

When closing the air intake grille, press the bottom right and left corners and center. (Fig. 27)

Please refer to “How to replace the grille” on page 8 or 9 for installing the air intake grille.

Fig. 27

Rear

Wall

panel

 

Plastic cover

Wiring

10" (25 cm)

Fig. 24

Cover

Fig. 25

Terminal plate

Fig. 26a

Inter-unit wiring

Earth plate

Lock nut

Top of conduit connector

Fig. 26b

11

Image 76
Contents Capacity Indoor Model No Product Code No 500BTU / h KMS0772 000BTU / h KMS097211,900BTU / h KMS1272 17,500BTU / h KMS1872Please Read Before Starting Table of Contents Applicable MULTI-OUTDOOR Units Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Indoor Air Intake Temp Outdoor Air Intake TempUnit Specifications KMS0772208V KMS0972 KMS0972 KMS1272 KMS1272 KMS1872 KMS1872 KMS2472 KMS2472 Major Component Specifications Indoor UnitCB-KMS0972 CB-KMS1272 CB-KMS1872 CB-KMS2472 Temperature F C Other Component SpecificationsResistance k ohm Dimensional Data KMS0972 KMS1272Indoor Unit KMS1872 KMS2472 Refrigerant Flow Diagram Indoor Unit KMS0772 KMS0972 KMS1272 Indoor unitAir Throw Distance Charts Performance DataIndoor Unit Indoor Unit Indoor Unit Indoor Unit Electric Wiring Diagrams Indoor Unit KMS0772 KMS0972 KMS12728FA2-5257-70500-0 Emergency operation Operation FunctionsPAM- control Timer backup Lamp colorsProtective Functions Freeze preventionPrecautions before Performing Inspection or Repair Method of Self-DiagnosticsSelf-diagnostics Lamps Code Diagnostics itemIndication on indoor unit Blinking On IlluminatedReplace the controller Replace the circuit board or the fuseUsing the TEST/T-RUN terminals Checking the Indoor and Outdoor UnitsChecking the indoor unit Control Check items unit operation Checking the serial communicationsTrouble Diagnosis of Fan Motor Indoor Fan MotorNoise Malfunction and Electromagnetic Interference Noise malfunctionElectromagnetic interference Locations most susceptible to noise Trouble CorrectionKMS0772 KMS0972 KMS1272 KMS1872 KMS2472 Features Alert Symbols ContentsProduct Information Safety Instructions Installation LocationElectrical Requirements Names of Parts Unit Display and Operation Button Quiet lampRemote Control Unit Display Remote Control Unit HR. Timer buttonAdvance button TransmitterDRY Using the Remote Control Unit How to Install BatteriesTemperature Display Selector button ACL button ALL ClearUsing the Remote Control Unit Operation with the Remote Control Unit OperationOperation with the Remote Control Unit Press the ON/OFF operation buttonCooling and DRY Mode Night Setback Mode is used for saving energyQuiet Mode Special Remarks Power failure during operationClicking sound is heard from the air conditioner Setting the Timer Operation IndicationTo cancel a timer program Press the Cancel button Setting the Timer1030 pm 710 am 1100 am Present time Using the 1-Hour OFF Timer Setting procedureCancellation procedure Operation together with the Daily ON/OFF Repeat TimerAdjusting the Airflow Direction Setting the airflow manuallyHorizontal Sweep functionCare and Cleaning When the air conditioner is not runningOperation without the Remote Control UnitCare and Cleaning How to remove the anti-mold filterHow to replace the anti-mold filter Air intake grilleHow to clean the air clean filter How to install the air clean filterCleaning the negative ion generator Washing the grille with waterOperating Range TroubleshootingTrouble Possible Cause Remedy Appendix B Installation Instructions Contents For Indoor UnitFor safe installation and trouble-free operation, you must Please Read Before Starting…In a Ceiling or Wall …In a RoomGeneral Installation Site Selection Additional Materials Required for InstallationEmbedding the Tubing and Wiring 150 L1+L2+L3+L4 230Remove the Rear Panel from the Unit How to Install the Indoor UnitMake a Hole If Wooden Wall Install the Rear Panel on the WallIf Block, Brick, Concrete or Similar Type Wall How to remove the grille How to replace the grilleBe sure to wear work gloves Cut by the sharp aluminum finsIndoor unit types KMS1872, KMS2472 Wiring Instructions General precautions on wiring Shape the Indoor Side TubingWiring Instructions for Inter-unit Connections Loose wiring may cause Fore, be sure all wiring isHow to connect wiring to the terminal For Indoor Unit For Outdoor Unit For solid core wiring or F-cableMounting Right-side tubingLeft-side tubing Switching drain hose and drain capDrain cap To unmount indoor unit Risk of Electric ShockHow to Test Run the Air Conditioner Operation lamp Timer lamp Quiet lamp ION lampRemote Control Unit Installation Position Mounting on a WallAddress Switch Address Setting of the Remote Control UnitConnecting a Home Automation device Installation Check Sheet