3. HOW TO INSTALL THE INDOOR UNIT

■4-Way Air Discharge Semi-Concealed Type (X Type) 3-1. Preparation for Suspending

This unit uses a drain pump. Use a carpenter’s level to check that the unit is level.

3-2. Suspending the Indoor Unit

(1)Fix the suspension bolts securely in the ceiling using the method shown in the diagrams (Figs. 3-1 and 3-2), by attaching them to the ceiling support structure, or by any other method that ensures that the unit will be securely and safely suspended.

(2)Follow Fig. 3-2 and Table 3-1 to make the holes in the ceiling.

Table 3-1

Unit: in. (mm)

Note: For DC Fan Tap Change Procedure for 4-Way Cassette, see page 31.

Hole-in-anchor

 

 

X

Hole-in-plug

Concrete

Insert

Suspension bolt (M10 or 3/8") (field supply)

Fig. 3-1

Length

A

B

C

D

Type

12, 18, 24, 36

31-1/32

28-15/32

34-27/32

34-27/32

(788)

(723)

(885)

(885)

 

 

 

 

 

 

(3)Determine the pitch of the suspension bolts using the supplied full- scale installation diagram. The diagram and table (Fig. 3-3 and Table 3-2) show the relationship between the positions of the sus- pension fitting, unit, and panel.

Table 3-2

 

 

 

 

 

 

Unit: in. (mm)

 

 

 

 

 

 

 

 

 

 

Length

A

B

 

C

 

D

 

E

 

Type

 

 

 

 

12, 18, 24

4-29/64

6-13/16

 

10-5/64

 

8-17/64

 

3-15/32

 

(113)

(173)

 

(256)

 

(210)

 

(88)

 

 

 

 

 

 

36

4-29/64

6-13/16

 

12-9/16

 

8-17/64

 

3-15/32

 

(113)

(173)

 

(319)

 

(210)

 

(88)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drain outlet(other side)

 

 

Refregerant tubing joint(liquid side)

 

 

 

(VP25)

 

 

B (suspension bolt pitch)

A (suspension bolt pitch)

C (ceiling opening dimension)

Fig. 3-2

Refregerant tubing joint(gas side)

D (ceiling opening dimension)

Suspension lug

 

 

 

 

C

D

B

8 (35)

E

A

1-3/

 

Power supply outlet

Unit: in. (mm)

Fig. 3-3

Inter-unit control wiring

 

3-3. Placing the Unit Inside the Ceiling

(1)When placing the unit inside the ceiling, determine the pitch of the suspension bolts using the supplied full-scale installation diagram. (Fig. 3-4)

Tubing and wiring must be laid inside the ceiling when suspending the unit. If the ceiling is already constructed, lay the tubing and wiring into position for connection to the unit before placing the unit inside the ceiling.

19/32 (15)

Over

Supplied bolt

– 43/64

17)

15/32

(12 –

Full-scale installation diagram

 

(printed on top of container box)

Unit: in. (mm)

 

Fig. 3-4

25

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Sanyo 85464359981002 HOW to Install the Indoor Unit, Suspending the Indoor Unit, Placing the Unit Inside the Ceiling
Page 24 Page 26

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