2-2. Outdoor Unit

AVOID:

heat sources, exhaust fans, etc. (Fig. 4)

damp, humid or uneven locations.

DO:

NO

Exhaust fan

Hot air

Heat source

Outdoor unit

choose a place as cool as possible.

choose a place that is well ventilated.

allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig. 5a or 5b)

provide a solid base (level concrete pad, concrete block, 4" 1'4" (10 40 cm) or 6" 1'4" (15 40 cm) beams

or equal), a minimum of 4" (10 cm) or 6" (15 cm) above ground level to reduce humidity and protect the unit against possible water damage and decreased service life. (Figs. 5c and 5d or 5e)

 

Fig. 4

 

(CH1872)

Air intake

Min. 4" (10 cm) Valve

 

side

 

Min. 10"

Obstacle above

ge

Min.

Min.

dischar

7' (2 m)

7' (2 m)

 

 

CAUTION

A solid base must not cover the hole of the bottom plate.

 

 

(25 cm)

Min.

Air discharge

Min.

2" (5 cm)

 

1'4" (40 cm)

 

 

Air

tacle

 

Obs

Install cushion rubber under unit’s feet to reduce vibration and noise. (Fig. 5f)

use lug bolts or equal to bolt down unit, reducing vibration and noise.

Install in a location where no antenna of a television or radio exists within 10' (3 m).

(CH1872)

 

 

 

 

 

Anchor bolts

 

 

 

 

 

(4 pcs.)

Air intake

 

 

 

 

 

 

Min. 4" (10 cm)

 

 

 

 

 

 

 

Concrete

 

 

 

 

 

 

 

or equal

 

 

 

 

 

 

 

Abo

 

 

 

t

4"

(10

cm)

 

 

 

 

 

 

 

 

 

 

 

u

 

 

 

 

ut

 

Abo

 

 

 

 

 

1'4"

(40

cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 5d

(CH2472)

Anchor bolts

(4 pcs.)

 

 

Fig. 5a

 

(CH2472)

Air intake

Min. 6" (15 cm) Valve

 

side

 

Min. 10"

 

(25 cm)

Min.

Air discharge Min.

4" (10 cm)

1'8" (50 cm)

 

Fig. 5b

Drain holes

Fig. 5c

Ground

Min. 4" (10 cm)

 

 

Air intake

Obstacle above

ge

 

Min.

Min.

Air dischar

7' (2 m)

7' (2 m)

 

 

tacle

 

 

 

Obs

Ground

Min. 6" (15 cm)

 

 

Air intake

Air intake

Concrete or equal

Min. 6" (15 cm)

Abo

 

 

 

t

6"

(15

cm)

 

 

 

 

 

 

 

 

 

 

 

 

u

 

 

 

 

ut

 

Abo

 

 

 

 

 

1'4"

(40

cm)

 

 

 

 

 

 

 

 

 

 

 

Fig. 5e

Cushion rubber

Fig. 5f

5

Page 91
Image 91
Sanyo CH1872, CH2472 service manual Outdoor Unit, Solid base must not cover the hole of the bottom plate