Toshiba RAV-SM802XT-E, RAV-SM802AT-E, RAV-SM562AT-E service manual ·m kgf·cm, ·m kgf·m

Page 12

FILE NO. SVM-06012

° 46 ° to 45

43°	to
	to
	45°

Fig. 6-2-2 Relations between flare nut and flare seal surface

(2)Flare connecting procedures and precautions

a)Make sure that the flare and union portions do not have any scar or dust, etc.

b)Correctly align the processed flare surface with the union axis.

When it is strong, the flare nut may crack and may be made non-removable. When choosing the tightening torque, comply with values designated by manufacturers. Table 6-2-7 shows reference values.

c)Tighten the flare with designated torque by means of a torque wrench. The tightening torque for R410A is the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur.

Note:

When applying oil to the flare surface, be sure to use oil designated by the manufacturer. If any other oil is used, the lubricating oils may deteriorate and cause the compressor to burn out.

Table 6-2-7 Tightening torque of flare for R410A [Reference values]

	Nominal	Outer diameter	Tightening torque	Tightening torque of torque
	Nominal	Outer diameter	Tightening torque	wrenches available on the market
	diameter	(mm)	N·m (kgf·cm)	wrenches available on the market
	diameter	(mm)	N·m (kgf·cm)	N·m (kgf·m)
				N·m (kgf·m)

	1/4	6.35	14 to 18 (140 to 180)	16 (160), 18 (180)

	3/8	9.52	33 to 42 (330 to 420)	42 (420)

	1/2	12.70	50 to 62 (500 to 620)	55 (550)

	5/8	15.88	63 to 77 (630 to 770)	65 (650)

– 10 –

Image 12

Contents AIR-CONDITIONER Contents Specifications Operation characteristic curve Cooling Heating CurrentConstruction Views Indoor UnitSystematic Refrigerating Cycle Diagram RAV-SM562XT-E / RAV-SM802XT-EWiring Diagram Color IdentificationSpecification of Electrical Parts Parts name Type SpecificationsSafety During Installation/Servicing Refrigerant Piping InstallationRefrigerant R410A Piping materials and joints used1 Thicknesses of annealed copper pipes Thickness mm Outer diameter mm R410A R22Processing of piping materials Flare tool for R410A Conventional flare tool Clutch type Wing nut typeFlare tool for R22 Conventional flare tool Width Diameter·m kgf·cm ·m kgf·mTools Required toolsGeneral tools Conventional tools can be used 1 Configuration of refrigerant charging Recharging of RefrigerantBrazing of Pipes Characteristics required for flux Types of flux Noncorrosive fluxActivated flux Filler FluxControl Block Diagram PRE DEFWhen power supply is reset Operation mode selectionAir volume control Operation DescriptionCool air discharge preventive control 1 Cold draft preventing controlFreeze preventive control Low temperature release High-temp release controlLouver control Filter sign displayHow to set auto restart function Auto Restart FunctionOperation MotionsHow to cancel auto restart function Power failure during timer operationHow to turn off filter check lamp Filter Check LampTroubleshooting Summary of TroubleshootingBefore troubleshooting Troubleshooting procedureSelf-Diagnosis by Remote Control Check Code How to use remote control in service modeJudgement and action No display in the setting at shipment Operation TA sensor TC, TCJ sensor Caracteristics-1 Caracteristics-2 Caracteristics-320 TE, TO, TS sensor TD sensor Caracteristics-4How to install the Air inlet grille DetachmentsRemove the Panel arms from the Front panel Open 3 Cap screws and remove the screws How to remove the Drain pan Assembly Pan assembly Refrigeration How to remove the Refrigeration assemblyPart name Procedures Remarks How to remove the Multiblade fanFan motor Exploded Views and Parts List Indoor Unit E-Parts AssyAIR-GRILLE

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