Panasonic S-22MU1E5 Instrucciones De Instalación página 18

140 Type
250
25
200
20
150
15
100 10
50
5
0 0
30 35 40
3
Air Flow (m /minute)
H : At shipment
N OTE
Fig. 3-82
3-31. Increasing the Fan Speed (280 Type Only)
If external static pressure is too great (due to long extension
of ducts, for example), the air flow volume may drop too low at
each air outlet. This problem may be solved by increasing the
fan speed using the following procedure:
(1) Remove 4 screws on the electrical component box and
remove the cover plate.
(2) Disconnect the fan motor sockets in the box.
(3) Take out 2 booster cables from option carton box (sockets
at both ends).
(4) Securely connect the booster cable's 2 sockets between
the disconnected fan motor sockets in step 2 as shown in
Fig. 3-83.
Electrical component box
Booster cable
Fan
Booster cable
motor
Fan motor socket
(At shipment) (Booster cable installed)
Fig. 3-83
(5) Place the cable neatly in the box and reinstall the cover
plate.
Indoor Fan Performance
224 Type 280 Type
25
250 250
200 20 200
H
15
150 150
M
L
H
100 10 100
L
M
50 5 50
0 0 0
50 60 70
60 70 80
3
3
Air Flow (m /minute)
Air Flow (m /minute)
HT : Using booster cable
NOT E
H : At shipment
Fig. 3-84
31
■ 4-Way Cassette Type (U1 Type)
3-32. Preparation for Suspending
This unit uses a drain pump. Use a carpenter's level to check
that the unit is level.
25
3-33. Suspending the Indoor Unit
20 (1) Fix the suspension bolts securely in the ceiling using the
method shown in the diagrams (Figs. 3-85 and 3-86), by
attaching them to the ceiling support structure, or by any
15
other method that ensures that the unit will be securely
and safely suspended.
HT
(2) Follow Fig. 3-86 and Table 3-5 to make the holes in the
H 10
M
ceiling.
Table 3-5
5
Length
A B
Type
22, 28, 36, 45, 56,
786 745
0
73, 106, 140, 160
90
(3) Determine the pitch of the suspension bolts using the
supplied full-scale installation diagram. The diagram and
table (Fig. 3-87 and Table 3-6) show the relationship
between the positions of the suspension fitting, unit, and
panel.
Use the nut (field supply) and washer (supplied) for
upper and lower position of the suspension lug.
Table 3-6
Length
A B
Type
22, 28, 36, 45, 56 121 171
73, 106, 140, 160 121 171
Drain outlet (other side)
(VP25)
Suspension lug
3-34. Placing the Unit Inside the Ceiling
This unit is equipped with the drain pump. Check a tape
measure or carpenter's level.
Before installing the ceiling panel, complete the work of
drain pipe and refrigerant pipe installation.
(1) When placing the unit inside the ceiling, determine the
pitch of the suspension bolts using the supplied full-scale
installation diagram. (Fig. 3-88)
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.
Note: For DC Fan Tap Change Procedure for 4-Way
Cassette, see page 47.
Hole-in-anchor
Hole-in-plug
Suspension bolt (M10 or 3/8")
(field supply)
Unit: mm
C D
860 to 910 860 to 910
Indoor Unit
View from top
A (suspension bolt pitch)
C (ceiling opening dimension)
Unit: mm
C D E
256 180 130
319 180 130
Refrigerant tubing joint (gas side)
Refrigerant tubing joint (liquid side)
Fig. 3-87
Supplied
screw
Full-scale installation diagram
(printed on top of container box)
32
Concrete Insert
Fig. 3-85
Fig. 3-86
Unit: mm
Fig. 3-88