Samsung AD18B1C09, UD26B1C2, UD18B1C2, AD26B1C13 Installation, 1-1Refrigerant Refill Procedure

1. Installation

1-1 Refrigerant Refill Procedure

If connecting pipe of more than 5 metres is installed, additional refrigerant should be charged by extra metre. You don’t have to charge additional refrigerant up to 5 metres of connecting pipe.

1.	Remove the valve stem cap and service port of 3-way
	valve.
2.	Connect the charging hose of low pressure side of
	Manifold gauge to the packed valve having a charging
	port(1/2” Packed valve) as shown at the right figure.

• Piping length and the height

		Pipe Size		Max.piping	Max
				length	height
		LIQUID	GAS	A	B
AD26B1C13	A-UNIT	1/4”	1/2”	15m(49ft 3in)	7m(23ft)
	B-UNIT	1/4”	1/2”	15m(49ft 3in)	7m(23ft)
AD18B1C09	A-UNIT	1/4”	3/8”	15m(49ft 3in)	7m(23ft)
	B-UNIT	1/4”	3/8”	15m(49ft 3in)	7m(23ft)

3.	Operate the unit at the cooling mode.
4.	Slowly open the valve of the low pressure side of
	Manifold gauge counterclockwise until the low pressure
	of manifold gauge indicates 4.8 to 5.5 kg/cm2 (68 a
	78psi) at the high cool operation (1-unit operation) and
	the standard temperature.
	It is recommend that refrigerant should be slowly put in.
	If the refrigerant is put in too quickly, compressor will be
	damaged.
5.	Stop operation of the air conditioner.

Additional refrigerant charge (R22,g)

•When length of the pipe is over 5u by the unit, you should charge

the refrigerant Formulas

A-UNIT : 20gx(La-5)/m

B-UNIT : 20gx(Lb-5)/m (La:the length of A-unit’s

pipe Lb:the length of B-unit’s pipe)

INDOOR UNIT

A

B

OUTDOOR UNIT

6.	Disconnect the charge hose of manifold gauge.
7.	Close the cap of each valve.

INDOOR

A-UNIT

INDOOR

B-UNIT

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