Flaring work, Burrs removal | Heat Controller DMC24DB-1, DMH36TB-1

Flaring Work and Connection of Piping

Flaringwork

Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure.

Cut the pipes and the cable.

1.Use the piping kit accessory or the pipes purchased locally.

2.Measure the distance between the indoor and the outdoor unit.

3.Cut the pipes a little longer than measured distance.

4.Cut the cable 1.5m (5.0ft) longer than the pipe length.

Burrs removal

1.Completely remove all burrs from the cut cross section of pipe/tube.

2.Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

Putting nut on

•Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal.

(not possible to put them on after flaring work)

Copper		Slanted	Uneven Rough
pipe	90°	Slanted	Uneven Rough
		Pipe
		Reamer

Point down

Flare nut

Copper tube

Flaring work

•Carry out flaring work using flaring tool as shown below.

•Firmly hold copper pipe in a die in the dimension shown in the table above.

Outside diameter		A

mm	inch	mm
Ø6.35	1/4	0~0.5
Ø9.52	3/8	0~0.5

	"A"		Handle
Bar	"A"	Bar
Bar		Bar	Yoke
			Yoke
			Cone
	Copper pipe
		Clamp handle	Red arrow mark
			Red arrow mark

12Room Air Conditioner

DMC24DB-1, DMH24DB-1 DMC36TB-1, DMH36TB-1 specifications

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