Panasonic S-22MM1E5 - 4-Way Cassette Type (U1 Type); Preparation for Suspending; Suspending the Indoor Unit; Placing the Unit Inside the Ceiling

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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.
3-33. Suspending the Indoor Unit
(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
other method that ensures that the unit will be securely
and safely suspended.
(2) Follow Fig. 3-86 and Table 3-5 to make the holes in the
ceiling.
Table 3-5 Unit: mm
Length
Type
AB C D
22, 28, 36, 45, 56,
73, 106, 140, 160
786 745 860 to 910 860 to 910
(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 Unit: mm
Length
Type
ABCDE
22, 28, 36, 45, 56 121 171 256 180 130
73, 106, 140, 160 121 171 319 180 130
Hole-in-anchor
Hole-in-plug
Concrete
Insert
Suspension bolt (M10 or 3/8")
(field supply)
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.
Fig. 3-85
Fig. 3-86
Fig. 3-88
Fig. 3-87
Indoor Unit
View from top
B (suspension bolt pitch)
A (suspension bolt pitch)
C (ceiling opening dimension)
D (ceiling opening dimension)
D
E
A
B
C
33.5
Drain outlet (other side)
(VP25)
Suspension lug
Refrigerant tubing joint (liquid side)
Refrigerant tubing joint (gas side)
Unit: mm
Full-scale installation diagram
(printed on top of container box)
Supplied
screw
Over 18 mm
12 – 17 mm
Panaindoor336013Eng.indb32Panaindoor336013Eng.indb32 2012/03/2121:07:142012/03/2121:07:14