Toshiba RAM-SM800UT-E, RAM-SM800KRT-E Refrigerant Piping, Permissible Piping Length and Head

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6 REFRIGERANT PIPING

Refrigerant Piping

1.If the outdoor units are to be mounted on a wall, make sure that the platform supporting is sufficiently strong. The platform should be designed and manufactured to maintain its strength over a long period of time, and sufficient consideration should be given to ensuring that the outdoor unit will not fall.

2.Use copper pipe with 0.8 mm or more thickness.

3.Flare nut and flare works are also different from those of the conventional refrigerant. Take out the flare nut attached to the main unit of the air conditioner, and use it.

CAUTION

IMPORTANT 4 POINTS FOR PIPING WORK

1.Take away dust and moisture from the inside of the connecting pipes.

2.Tight connection (between pipes and unit)

3.Evacuate the air in the connecting pipes using VACUUM PUMP.

4.Check the gas leakage. (Connected points)

Permissible Piping Length and Head

The maximum piping length from the outdoor to indoor unit

30 m (Without charge 20m)

50 m (Without charge 20m)

(RAV-SM560AT-E)

(RAV-SM800AT-E)

 

 

The maximum height difference outdoor/indoor unit

Outdoor unit is above

Outdoor unit is below

30m

15m

 

 

Flaring

Insert a flare nut into the pipe, and flare the pipe.

As the flaring sizes of R410A differ from those of refrigerant R22, the flare tools newly manufactured for R410A are recommended.

However, the conventional tools can be used by adjusting projection margin of the copper pipe.

B

• Projection margin in flaring : B (Unit : mm)

Rigid (Clutch type)

Outer diam. of

R410A tool used

Conventional tool used

 

 

 

 

copper pipe

R410A

R22

R410A

R22

 

 

 

 

 

 

6.35

0 to 0.5

(Same as left)

1.0 to 1.5

0.5 to 1.0

 

 

 

 

 

9.52

0 to 0.5

(Same as left)

1.0 to 1.5

0.5 to 1.0

 

 

 

 

 

12.7

0 to 0.5

(Same as left)

1.0 to 1.5

0.5 to 1.0

 

 

 

 

 

Imperial (Wing nut type)

Outer diam. of copper pipe

R410A

R22

 

 

 

6.35

1.5 to 2.0

1.0 to 1.5

 

 

 

9.52

1.5 to 2.0

1.0 to 1.5

 

 

 

12.7

2.0 to 2.5

1.5 to 2.0

 

 

 

• Flaring dia meter size : A (Unit : mm)

Outer diam. of copper pipe

 

A -+00.4

 

 

 

R410A

 

R22

 

 

 

 

 

 

6.35

9.1

 

9.0

 

 

 

 

9.52

13.2

 

13.0

 

 

 

 

12.7

16.6

 

16.2

 

 

 

 

*In the case of flaring for R410A with the conventional flare tool, pull out it approx. 0.5 mm more than that for R22 to adjust to the specified flare size.

The copper pipe gauge is useful

A

for adjusting projection margin size.

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Contents Split Type Way Air Discharge Cassette Type Outdoor Unit --------- RAV-SM800AT-E/RAV-SM800AT-E Installation ManualNew Refrigerant Air Conditioner Installation Precautions for SafetyTo Disconnect the Appliance from Main Power Supply Connect the connecting cable correctlyInappropriate grounding may cause electric shock Selection of Installation Accessory and RefrigerantAccessory and Installation Parts Before installationNecessary Space for Installation Installation PlaceObstacle at rear side Upper side is free Obstacle at front side Upper side is freeInstallation of Outdoor Unit Selection of InstallationPiping connection Optional Installation Parts Local ProcureRefrigerant Piping Connection Knockout of Pipe Cover Knockout procedureHow to remove the front panel Pipe Forming/End Positioning Refrigerant PipingFlaring size a Unit mm FlaringRequirement Tightening of Connecting PartRefrigerant Piping Vacuum pump EvacuatingAir Purge Open Close EvacuatingHow to wire SM560AT-E How to remove the valve coverStripping length power cord and connecting cable Electrical WorkSelf-Diagnosis by LED Indication Final Installation ChecksCheck and Test Operation New tools for R410A Changes in the product and componentsPrecautions for Safety AccessoriesRemote controller Screws two pcs Standard 4-way cassette panel optional partsRAV-SM560UT-E RAV-SM800UT-E Outdoor unit Parts NameIndoor unit Display section Parts Name of Remote ControllerOperation section Preparation Turn on the main power switch and/or the leakage breakerCorrect Usage Push button StopStart How to start swinging How to set up the wind directionHow to stop swinging Heat operationCancel of timer operation Timer OperationTimer operation Hints for Economical Operation MaintenanceClean the panel and air filter with water Cleaning of panel and air filterCleaning of Air Filters If you do not plan to use the unit for more than 1 monthBe careful to the direction of the flap when mounting Cleaning of discharge flapAIR Conditioner Operations and Performance Do not install the air conditioner in the following places RE-INSTALLATIONTroubles and Causes Be careful with noise or vibrationsInoperative Page Separate sold parts Accessory parts and Parts to be procured locallyPrecautions for Safety Precautions for Safety Avoid installing in the following places Selection of Installation PlaceInstallation space Selection of installation place Discharge direction Selection of Installation PlaceAdvice Height list of ceiling possible to be installedExternal view Installation of ceiling opening and hanging bolt Installation of hanging boltInstallation of ceiling panel Sold separately Piping/Heat insulating material Drain Piping WorkFlexible hose Adhesive inhibitedDrain up Connection procedureCheck the draining Perform heat insulatingFlaring dia meter size a Unit mm Permissible Piping Length and HeatTightening connection Tightening torque of flare pipe connectionsOpen the valve fully Use a vacuum pumpGas leak check Thermal insulation processSM800 type valve at gas side Packed valve handling precautionsFor RAV-SM800AT-E model Remote controller wiring Be sure to connect earth wire. Grounding workElectrical Work Thermal insulation to cabling connecting portCable connection Cabling on the ceiling panelCabling Remote Controller CablingCabling diagram Case of wired remote controller How to execute a test runTest RUN Before test runConfirmation and check TroubleshootingConfirmation of error history Accessories RAV-SM560BT-E RAV-SM800BT-E Connecting duct Test run display Operation mode displayFan mode display Filter UP/DOWN button Fan mode button ButtonUnit and Auto flap button No function Operation lamp Correct Usage Automatic Operation Auto Changeover Clear of timer operation Do not open doors and windows more often than necessary Clean the Return grilles with water Cleaning of Return grilleAIR Conditioner Operations and Performance RE-INSTALLATION Air flow changes without FAN button set to Auto mode Auto RAV-SM560BT-E RAV-SM800BT-E Precautions for Safety Precautions for Safety Selection of installation place Installation procedure Installation of Indoor UnitHanging down of indoor unit DimensionRestriction to installation Installation of Indoor UnitConcealed duct type Ledge ceiling concealed duct typeAIR Ducting Work Static pressure characteristics of each modelAIR Ducting Work Connecting method of the ductGeneral cautions Points at installation workHanging of indoor unit Mounting of remote controllerMounting of filter and canvas for suction port For referenceConnection of the drain hose Piping materialPiping and cautions 13.2 13.0 12.7 16.6 16.2 15.9 19.7 19.4 SM800 type valve at gas side Electrical Work Tools INSTALLATION/SERVICING ToolsRemote controller RAV-SM560KRT-E RAV-SM800KRT-E Temporary button Name and Functions of Indicators and ControlsDisplay panel Name and Operations of Indicators and Controls Central indication Set up temp. buttonLouver operation button ON/OFF buttonWhen restarting the operation after stop Turn on the power switchPush ON/OFF button CoolingSTART/STOP button DRY OperationSTART/STOP button Automatic operation Adjusting AIR Flow DirectionHOW the AIR Conditioner Works Cleaning of indoor unit and remote controller Air filter resetTemporary Operation Temporary operationClean the air filters as often as possible Cleaning the air filterCheck before operation Open the air inlet grilleCleaning the air inlet grille Heating operation characteristics Preheating operationMinute protection function Warm air controlRecheck Problems and CausesInoperative Does not cool well or heat wellWired remote Precautions for Safety Precautions for Safety Installation Diagram of Indoor Unit Installation ProcedureMounting the Installation Plate When the installation plate is directly mounted on the wallGood location Bad location Case of right-side exit Piping and Drain Hose InstallationCase of downward pipe exit Piping via left-hand connectionDrainage Drain Piping WorkPermissible Piping Length and Head Evacuating For RAV-SM560AT-E model 100Add Only R410A Refrigerant to These Units Heat insulation 101Additional refrigerant 102 Wiring between unitsWiring connections Precautions Installation of Remote Controllers103 Flush wall mounting104 Improving System EfficiencyOptions 105 Final Installation ChecksProduct maintenance Environmental IssuesEnvironment 106

RAM-SM560BT-E, RAM-SM560KRT-E, RAM-SM800UT-E, RAM-SM800AT-E, RAM-SM560UT-E specifications

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