Toshiba RAV-SP300AT2-UL Refrigerant Piping, Flaring diameter size a Unit in mm

Page 13

Outdoor Unit

Installation Manual

6 REFRIGERANT PIPING

Piping connections are inside the front panel of the unit and the front panel and pipe cover needs to be removed before piping and wiring connections are made.

Piping can enter the outdoor unit from the back, from the side or from the bottom as shown

Front panel

Pipe cover

Rear

Side

Bottom

1.Remove the front panel of the unit.

2.Remove the pipe cover.

3.Remove the appropriate knockout depending on the orientation of the piping.

The pipe cover is easily mounted by cutting off the slit at the lower part of the pipe cover.

Flaring

1.Cut the pipe with a pipe cutter.

Be sure to remove burrs that may cause a gas leak.

2.Insert the supplied flare nut into the pipe, and then 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

B

can be used by adjusting the

 

projection margin of the copper

 

pipe.

 

Projection margin in flaring : B (Unit : in (mm)) Rigid (Clutch type)

Outer diameter of

R410A tool

Conventional

used

tool used

copper pipe

 

 

R410A

0.04” - 0.06”

 

 

 

3/8” (9.5)

 

0 - 0.02” (0 - 0.5)

(1.0 - 1.5)

 

5/8” (15.9)

 

 

 

 

 

Flaring diameter size : A (Unit : in (mm))

Outer diameter of copper pipe

A -+00.02"(–0.4)

 

 

 

3/8” (9.5)

0.52” (13.2)

 

 

 

 

 

 

 

 

 

 

5/8” (15.9)

0.78” (19.7)

 

 

 

 

 

 

 

 

 

 

* In case of flaring for R410A with the

 

A

 

conventional flare tool, pull the tool out

 

 

 

 

 

 

 

 

 

approx. 0.02” (0.5 mm) more than that for

 

 

 

 

 

 

 

R22 to adjust it to the specified flare size.

 

 

 

The copper pipe gauge is useful for

 

 

 

adjusting the projection margin size.

 

 

 

* Be sure to wear heavy work gloves while working.

4.Remove the burrs from the knockout opening and use the factory supplied protective edge guard material around the opening to protect the piping and the wiring.

5.Remove the flare nut from the service valve on

outdoor unit. Insert the flare nut into the field

EN

piping, and flare the pipe.

 

Bend the pipe approx. 90 degree with a pipe

 

bender for side and rear piping.

 

6.When the piping connections are complete re- install the pipe cover.

– 12 –

12-EN

Image 13
Contents Installation manual Contents Discharge DimensionAccessory Parts „ Piping Field supplied System RequirementsBe sure to ground the equipment Precautions for SafetyEquipment Damage Hazard „ Required Tools/Equipment and Precautions for Use Installation of NEW Refrigerant AIR ConditionerNew Refrigerant Air Conditioner Installation Do not install the outdoor unit in the following location „ Installation LocationExample Unit in mm „Required ClearancesBarrier at rear side Barrier in front Upper side is free Above unit is freeStandard installation „ Installation of Outdoor UnitInstallation Manual Barriers in front and back of unitNo Good „ For ReferenceFlaring Refrigerant PipingProjection margin in flaring B Unit in mm Rigid Clutch type Flaring diameter size a Unit in mmConnections „Tightening of FlareDo not apply refrigerant oil to the flared surface Electrical Connections „ Field wiring„Wiring Attach the front pipe cover with 4 screws Evacuate and Dehydrate the System Using Vacuum PumpDeep Vacuum Method Triple Evacuation MethodValve handling precautions Open service valvesFinal Tubing Check Liquid sideFinishing 11PERIODIC Maintenance10TEST RUN Verifying Error code status Outdoor control board 12TROUBLESHOOTINGD800 D801 D802 D803 D804 D805 Procedure 14POWER Save13UNIT Pump Down EH99865501

RAV-SP420AT2-UL, RAV-SP300AT2-UL, RAV-SP360AT2-UL specifications

Toshiba has established itself as a leader in HVAC technology, providing solutions that cater to diverse climate control needs. Among its notable models are the Toshiba RAV-SP300AT2-UL, RAV-SP420AT2-UL, and RAV-SP360AT2-UL. Each of these units is designed to deliver efficient cooling and heating, suitable for both residential and commercial applications.

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