Panasonic CU-4KS31NBU service manual Max. Allowable Total, Limit of Elevation, Required Amount

install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for tele- vision, radio, telephone, security system, or intercom.

Electrical noise from any of these sources may affect operation.

install in a sturdy manner to avoid increased operating noise.

Table 3

	Max.	Max. Allowable Total			Limit of	Limit of Elevation	Required Amount
	Allowable	Tubing Length		Total Tubing Length		Difference	of Additional
Model	Tubing Length	at Shipment		(L1+L2+L3) or		(H1, H2, H3, H4)	Refrigerant
	Per Unit	(L1+L2+L3) or		(L1+L2+L3+L4)		(ft.)	(oz./ft.)*
	(ft.)	(L1+L2+L3+L4)			(ft.)
			(ft.)
CU-3KS19NBU	82	150	(L1+L2+L3)	150	(L1+L2+L3)	50	—
CU-4KS24NBU	82	150	(L1+L2+L3+L4)	200	(L1+L2+L3+L4)	50	0.22
CU-4KS31NBU	100	150	(L1+L2+L3+L4)	230	(L1+L2+L3+L4)	50	0.22

*If total tubing length becomes 150 to 200 ft. (Max.) or 150 to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft.

No additional charge of compressor oil is necessary. For more detailed charging information, refer to the Technical & Service Manual.

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