Sanyo KMS2472, KMS1872 service manual Embedding the Tubing and Wiring, 150 L1+L2+L3+L4 230

Page 70

Install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for tele- vision, radio, telephone, security system, or intercom.

Electrical noise from any of these sources may affect operation.

install in a sturdy manner to avoid increased operating noise.

Table 3

 

Max.

Max. Allowable Total

 

Limit of

Limit of Elevation

Required Amount

 

Allowable

Tubing Length

Total Tubing Length

Difference

of Additional

Model

Tubing Length

at shipment

(L1+L2+L3) or

(H1, H2, H3, H4)

Refrigerant

 

per unit

(L1+L2+L3) or

(L1+L2+L3+L4)

(ft.)

(oz./ft.)*

 

(ft.)

(L1+L2+L3+L4)

 

(ft.)

 

 

 

 

 

(ft.)

 

 

 

 

 

 

 

 

 

 

 

 

CM1972/CLM1972

82

150

(L1+L2+L3)

150

(L1+L2+L3)

50

 

 

 

 

 

 

 

 

CM2472/CLM2472

82

150

(L1+L2+L3+L4)

200

(L1+L2+L3+L4)

50

0.22

 

 

 

 

 

 

 

 

CM3172/CLM3172

100

150

(L1+L2+L3+L4)

230

(L1+L2+L3+L4)

50

0.22

 

 

 

 

 

 

 

 

*If total tubing length becomes 150 to 200 ft. (Max.) or 150 to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft. No additional charge of compressor oil is necessary.

2-2. Embedding the Tubing and Wiring

Before beginning embedding installation work, consult fully with agencies or offices related to the building’s foundation, construction, electricity, and water.

Wait to make connections to the embedded portion. Each connection step is described later in this manual.

Securely cover the end of the embedded tubing to prevent intrusion of dirt or moisture.

If an embedded tube is to be left for a long time, fill the tube with nitrogen and seal both ends securely.

If a tube is left open for an extended time, moisture in the air inside the tubing may condense into water droplets, and lead to water contamination of the refrig- erant circuit.

In order to prevent insulation breakdown and ground faults, do not allow wiring ends to come in contact with rainwater, or be subjected to condensation or dew.

Apply sufficient thermal insulation to the refrigerant tubing and drain pipes.

5

Image 70
Contents 11,900BTU / h KMS1272 Capacity Indoor Model No Product Code No 500BTU / h KMS0772000BTU / h KMS0972 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-DiagnosticsIndication on indoor unit Self-diagnostics LampsCode Diagnostics item Blinking On IlluminatedReplace the controller Replace the circuit board or the fuseChecking the indoor unit Control Check items unit operation Using the TEST/T-RUN terminalsChecking the Indoor and Outdoor Units Checking the serial communicationsTrouble Diagnosis of Fan Motor Indoor Fan MotorElectromagnetic interference Noise Malfunction and Electromagnetic InterferenceNoise malfunction 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 Advance button Remote Control UnitHR. Timer button TransmitterDRY Temperature Display Selector button Using the Remote Control UnitHow to Install Batteries 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 Cancellation procedure Using the 1-Hour OFF TimerSetting procedure Operation together with the Daily ON/OFF Repeat TimerHorizontal Adjusting the Airflow DirectionSetting the airflow manually Sweep functionOperation without the Remote Care and CleaningWhen the air conditioner is not running Control UnitHow to replace the anti-mold filter Care and CleaningHow to remove the anti-mold filter Air intake grilleCleaning the negative ion generator How to clean the air clean filterHow to install the air clean filter Washing the grille with waterOperating Range TroubleshootingTrouble Possible Cause Remedy Appendix B Installation Instructions Contents For Indoor Unit…In a Ceiling or Wall For safe installation and trouble-free operation, you mustPlease Read Before Starting …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 Be sure to wear work gloves How to remove the grilleHow to replace the grille 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 How to connect wiring to the terminal For Indoor Unit Loose wiring may causeFore, be sure all wiring is 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