Panasonic S-160PE1R5B Technical Data & Service Manual page 106

1
Suspending the Indoor Unit
Depending on the ceiling type:
1. Check the suspension bolt pitch.
2. Ensure that the ceiling is strong enough to support the weight of the unit.
3. To prevent the unit from dropping, firmly fasten the suspension bolts as shown in the figure below.
Hole-in-anchor
Hole-in-plug
N OTE
Suspension bolt
M10 or 3/8"
(field supply)
It is important that you use extreme care in supporting the indoor unit
inside the ceiling.
Ensure that the ceiling is strong enough to support the weight of the unit.
WARNING
Before suspending the unit, test the strength of each attached
suspension bolt.
(1) When placing the unit inside the ceiling, determine the pitch of the suspension bolts referring to the dimensional data given previously.
Tubing must be laid and connected inside the ceiling when suspending the unit.
If the ceiling is already constructed, lay the tubing into position for connection to the unit before placing the unit inside the ceiling.
(2) Screw in the suspension bolts allowing them to protrude from the ceiling as shown in Fig. 1-11-2-2-1. (Cut the ceiling material, if necessary.)
(3) Suspend and fix the indoor unit using the 2 hexagonal nuts (field supply) and special washers (supplied with the unit) as shown in Fig. 1-11-2-2-2.
CAUTION
• The top of the unit must be installed horizontally.
Horizontal
level
• Check the unit is placed horizontally.
Make sure the unit is installed level using a level or a vinyl hose filled with water.
In using a vinyl hose instead of a level, adjust the top surface of the unit to the surface of the water
at both ends of the vinyl hose and
make horizontal adjustment on all 4 corners of the unit.
If the air discharge side of the unit is installed downward, splashing water or water leak may occur.
Also, the dust may accumulate inside the drain pan caused by draining residual water.
• When lifting the unit, do not attempt to hold the electrical component box in hand.
Installing the Refrigerant Tubing
The size of the refrigerant tubing is as shown in the table below.
Table 1-11-2-2-1
Type
ø19.05 (~ 50 m)
Gas tube ø25.4 (Over 50 ~ 75 m)
(Brazing connection)
ø9.52 (Flare connection)
Tightening torque (approximate)
Liquid tube
Thickness of connecting tube
N OTE
To fasten the flare nuts, apply specified torque.
Insert
Concrete
Suspension bolt
(field supply)
* Choose "L" dimension according to the status of the ceiling.
Fig. 1-11-2-2-1
180 200 / 224
ø19.05 (~ 30 m)
ø25.4 (Over 30 ~ 60 m)
(Brazing connection)
ø12.7 (Flare connection)
Tightening torque (approximate)
: 34 ~ 42 N • m : 49 ~ 55 N • m
Thickness of connecting tube
: 0.8 mm
Unit: mm
Hexagonal nut (field supply)
Special washer (field supply)
Special washer (field supply)
Hexagonal nut (field supply)
Suspension bolt (field supply)
Hexagonal nut (field supply)
Special washer (supplied)
Special washer (supplied)
Hexagonal nut (field supply)
Suspension lug
Fig. 1-11-2-2-2
Carpenter's level
Vinyl hose filled with water
: 0.8 mm
1-11-2-2-4
Electrical component box