Toshiba RAM-SM560BT-E, RAM-SM800KRT-E, RAM-SM560AT-E Evacuating, SM800 type valve at gas side

Page 79

7 EVACUATING

AIR PURGE

Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump.

Do not use the refrigerant in the outdoor unit. For details, see the manual of vacuum pump.

Use a vacuum pump

Be sure to use a vacuum pump with counter-flow prevention function so that inside oil of the pump does not flow backward into pipes of the air conditioner when the pump stops.

1.Connect the charge hose from the manifold valve to the service port of the gas side packed valve.

2.Connect the charge hose to the port of vacuum pump.

3.Open fully the low pressure side handle of the gauge manifold valve.

4.Operate the vacuum pump to start evacuating.

Perform evacuating for about 35 minutes if the piping length is 30 meters total for model SM560 and 50 meters for model SM800

(assuming a pump capacity of 27 liters per minute.) Then confirm that the compound pressure gauge reading is –101 kPa ( –76 cmHg).

5.Close the low pressure side valve handle of gauge manifold.

6.Open fully the valve stem of the packed valves (both sides of Gas and Liquid).

7.Remove the charging hose from the service port.

8.Securely tighten the caps on the packed valves.

Packed valve handling precautions

Open the valve stem all the way out ; do not try to open it beyond the stopper.

Securely tighten the valve stem cap at the torque as follows:

15.9 mm (diam.)

63 to 77 N•m (6.3 to 7.7 kgf•m)

 

 

12.7 mm (diam.)

50 to 62 N•m (5.0 to 6.2 kgf•m)

 

 

9.52 mm (diam.)

33 to 42 N•m (3.3 to 4.2 kgf•m)

 

 

6.35 mm (diam.)

14 to 18 N•m (1.4 to 1.8 kgf•m)

 

 

Hexagonal wrench is required.

<For RAV-SM800AT-E model>

As shown in the figure, be sure to use a double spanner to loosen or tighten the flare nut of the valve at gas side. If using a single spanner, the nut cannot be tightened with necessary tightening torque.

On the contrary, use a single spanner to loosen or tighten the flare nut of the valve at liquid side.

Cover

Cap

Piping valve

LoosenedTightened

Flare nut

SM800 type valve at gas side

Cover

Do not put the spanner or torque wrench, etc. on the cover.

The valve may be broken.

Compound

pressure gauge Pressure gauge

–101kPa

(–76cmHg)

Manifold valve

Handle Lo

Handle Hi

 

Charge hose

(Keep fully closed)

Charge hose

 

 

Vacuum pump

Packed valve

adapter for

counter-flow

at liquid side

prevention

 

 

Vacuum

 

pump

 

Service port

 

(Valve core (Setting pin))

 

Packed valve at gas side

76

Image 79
Contents Split Type Way Air Discharge Cassette Type Outdoor Unit --------- RAV-SM800AT-E/RAV-SM800AT-E Installation ManualConnect the connecting cable correctly Precautions for SafetyNew Refrigerant Air Conditioner Installation To Disconnect the Appliance from Main Power SupplyInappropriate grounding may cause electric shock Before installation Accessory and RefrigerantSelection of Installation Accessory and Installation PartsObstacle at front side Upper side is free Installation PlaceNecessary Space for Installation Obstacle at rear side Upper side is freeInstallation of Outdoor Unit Selection of InstallationRefrigerant Piping Connection Optional Installation Parts Local ProcurePiping connection How to remove the front panel Knockout procedureKnockout of Pipe Cover Flaring Refrigerant PipingPipe Forming/End Positioning Flaring size a Unit mmRefrigerant Piping Tightening of Connecting PartRequirement Air Purge EvacuatingVacuum pump Open Close EvacuatingElectrical Work SM560AT-E How to remove the valve coverHow to wire Stripping length power cord and connecting cableCheck and Test Operation Final Installation ChecksSelf-Diagnosis by LED Indication New tools for R410A Changes in the product and componentsStandard 4-way cassette panel optional parts AccessoriesPrecautions for Safety Remote controller Screws two pcsRAV-SM560UT-E RAV-SM800UT-E Indoor unit Parts NameOutdoor unit Display section Parts Name of Remote ControllerOperation section Correct Usage Turn on the main power switch and/or the leakage breakerPreparation Start StopPush button Heat operation How to set up the wind directionHow to start swinging How to stop swingingTimer operation Timer OperationCancel of timer operation Hints for Economical Operation MaintenanceIf you do not plan to use the unit for more than 1 month Cleaning of panel and air filterClean the panel and air filter with water Cleaning of Air FiltersBe careful to the direction of the flap when mounting Cleaning of discharge flapAIR Conditioner Operations and Performance Be careful with noise or vibrations RE-INSTALLATIONDo not install the air conditioner in the following places Troubles and CausesInoperative Page Separate sold parts Accessory parts and Parts to be procured locallyPrecautions for Safety Precautions for Safety Installation space Selection of Installation PlaceAvoid installing in the following places Height list of ceiling possible to be installed Selection of Installation PlaceSelection of installation place Discharge direction AdviceExternal view Installation of ceiling opening and hanging bolt Installation of hanging boltInstallation of ceiling panel Sold separately Adhesive inhibited Drain Piping WorkPiping/Heat insulating material Flexible hosePerform heat insulating Connection procedureDrain up Check the drainingTightening torque of flare pipe connections Permissible Piping Length and HeatFlaring dia meter size a Unit mm Tightening connectionThermal insulation process Use a vacuum pumpOpen the valve fully Gas leak checkFor RAV-SM800AT-E model Packed valve handling precautionsSM800 type valve at gas side Remote controller wiring Be sure to connect earth wire. Grounding workCabling on the ceiling panel Thermal insulation to cabling connecting portElectrical Work Cable connectionCabling diagram Remote Controller CablingCabling Before test run How to execute a test runCase of wired remote controller Test RUNConfirmation of error history TroubleshootingConfirmation and check Accessories RAV-SM560BT-E RAV-SM800BT-E Connecting duct Fan mode display Operation mode displayTest run display Unit and Auto flap button No function Operation lamp Fan mode button ButtonFilter UP/DOWN button 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 DimensionLedge ceiling concealed duct type Installation of Indoor UnitRestriction to installation Concealed duct typeAIR Ducting Work Static pressure characteristics of each modelAIR Ducting Work Connecting method of the ductGeneral cautions Points at installation workFor reference Mounting of remote controllerHanging of indoor unit Mounting of filter and canvas for suction portPiping and cautions Piping materialConnection of the drain hose 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 Display panel Name and Functions of Indicators and ControlsTemporary button Name and Operations of Indicators and Controls ON/OFF button Set up temp. buttonCentral indication Louver operation buttonCooling Turn on the power switchWhen restarting the operation after stop Push ON/OFF buttonSTART/STOP button DRY OperationSTART/STOP button HOW the AIR Conditioner Works Adjusting AIR Flow DirectionAutomatic operation Temporary operation Air filter resetCleaning of indoor unit and remote controller Temporary OperationOpen the air inlet grille Cleaning the air filterClean the air filters as often as possible Check before operationWarm air control Heating operation characteristics Preheating operationCleaning the air inlet grille Minute protection functionDoes not cool well or heat well Problems and CausesRecheck InoperativeWired remote Precautions for Safety Precautions for Safety When the installation plate is directly mounted on the wall Installation ProcedureInstallation Diagram of Indoor Unit Mounting the Installation PlateGood location Bad location Piping via left-hand connection Piping and Drain Hose InstallationCase of right-side exit Case of downward pipe exitDrainage Drain Piping WorkPermissible Piping Length and Head Evacuating For RAV-SM560AT-E model 100Additional refrigerant 101Add Only R410A Refrigerant to These Units Heat insulation Wiring connections Wiring between units102 Flush wall mounting Installation of Remote ControllersPrecautions 103Options Improving System Efficiency104 105 Final Installation Checks106 Environmental IssuesProduct maintenance Environment

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

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