Sanyo CH2472, CH1872 service manual Installation Site Selection

1-5. Additional Materials Required for Installation

1.Refrigeration (armored) tape

2.Insulated staples or clamps for connecting wire (See local codes)

3.Putty

4.Refrigeration lubricant

5.Clamps or saddles to secure refrigerant tubing

Indoor unit

Drain hose

2. Installation Site Selection

Outside drainage

2-1. Indoor Unit

WARNING

AVOID:

●direct sunlight.

To prevent abnormal heat genera- tion and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surround- ing the air conditioner in a way that may block air flow.

Fig. 1

	6" (15 cm)	2" (5 cm)
2" (5 cm)	min.
		min.
min.
	Front View

●nearby heat sources that may affect performance of the unit.

●areas where leakage of flammable gas may be expected.

●places where large amounts of oil mist exist.

	Fig. 2
INDOOR	Tubing length (L)
UNIT

DO:

● select an appropriate position from which every corner of

the room can be uniformly cooled. (High on a wall is best.)

● select a location that will hold the weight of the unit.

● select a location where tubing and drain hose have the

shortest run to the outside. (Fig. 1)

Elevation	OUTDOOR
difference (H)
	UNIT

Fig. 3a

● allow room for operation and maintenance as well as unre-

stricted air flow around the unit. (Fig. 2)

● install the unit within the maximum elevation difference (H)

above or below the outdoor unit and within a total tubing length

(L) from the outdoor unit as detailed in Table 3 and Fig. 3a.

● Install the indoor unit more than 3.3' (1 m) away from any

antenna or power lines or connecting wires used for television,

radio, telephone, security system, or intercom. Electrical noise

from any of these sources may affect operation.

CAUTION

For stable operation of the air conditioner, do not install wall-mounted type indoor units less than 5' (1.5 m) from floor level.

Indoor unit

Wall

Minimum height from floor level

5' (1.5 m)

Table 3

Floor level

Fig. 3b

	Max. Allowable Tubing	Limit of Tubing	Limit of Elevation	Required Amount of
Model	Length at Shipment	Length (L)	Difference (H)	Additional Refrigerant
	(ft.)	(ft.)	(ft.)	(oz./ft.)*
KHS1872	25	98	49	0.27
KHS2472	33	98	49	0.27

*If total tubing length becomes 25 to 98 ft. (Max.) or 33 to 98 ft. (Max.), charge additional refrigerant (R410A) by 0.27 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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