Panasonic CS-KS18NKU, CU-KS18NKU Refrigerant Flow Diagram, Insulation of Refrigerant Tubing

4. REFRIGERANT FLOW DIAGRAM

4-1. Refrigerant Flow Diagram

Indoor Unit CS-KS18NKU	Outdoor Unit CU-KS18NKU	CU-KS24NKU
CS-KS24NKU	CU-KS18NKUA	CU-KS24NKUA

Indoor unit Outdoor unit

	Wide tube
Wide tube	service			Compressor
	valve		Accumulator
*1		Muffler
			High pressure
			switch
			H.P.

Heat exchanger					Heat exchanger
		Narrow	Electric
			expansion
		tube
			valve
		service
	Narrow tube			M
		valve

O.D.

1/4"Cooling cycle (6.35 mm)

*1 O.D.1/2"(12.7mm) ... CS/CU-KS18NKU CU-KS18NKUA

O.D.5/8"(15.88mm) ... CS/CU-KS24NKU CU-KS24NKUA

Insulation of Refrigerant Tubing

IMPORTANT

Because capillary tubing is used in the outdoor unit, both the wide and narrow tubes of this air conditioner become cold. To prevent heat loss and wet floors due to dripping of condensation, both tubes must be well insulated with a proper insulation material. The thickness of the insulation should be a min. 5/16"(8 mm).

Thickness:

Min. 5/16"(8 mm)

Insulation

Thickness:

Min. 5/16"(8 mm)

After a tube has been insulated, never try to bend it into a narrow

Wide tube

Narrow tube

CAUTION

curve because it can cause the tube to break or crack.

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