Panasonic R410A service manual Placing the Unit Inside the Ceiling

6-3. 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. 1-15)

The size of the opening for the indoor unit can be

confirmed by attaching the full-scale installation

diagram beneath the unit. (Fig. 1-15)

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.

(2) The length of each suspension bolt must be

appropriate for a distance between the bottom of

the bolt and the bottom of the ceiling of 5/8" or

more as shown in Fig. 1-15.

	1. Specifications
	Full-scale installation diagram
5/8" or more	(printed on a cardboard packing)
	7/8"
	1-
	Full-scale installation
	diagram

Fig. 1-15

Suspension bolt

Suspension lug

(3) Thread the 2 hexagonal nuts (field supply) and

washers onto the 4 suspension bolts as shown in

Fig. 1-16.

Nuts and washers (Use above and below)

Upper

Lower

1

	Use 2 sets of nuts and washers (upper and lower),
	so that the unit will not fall off the suspension lugs.
(4)	Remove the protective cardboard used to protect
	the fan parts during transport.
(5)	Adjust the distance between the unit and surface
	of the ceiling. (1-7/8") (Fig. 1-15)

Notch

Double nuts

1-7/8"

Fig. 1-16

1-77