Panasonic S-22MU1E5 Instrucciones De Instalación página 17

Pana_indoor_336012_Eng.indb 27
3-27. Suspending the Indoor Unit
Depending on the ceiling type:
● Insert suspension bolts as shown in Fig. 3-73
Hole-in-anchor
Concrete
Hole-in-plug Insert
Suspension bolt (M10 or 3/8")
(field supply)
or
●
Use existing ceiling supports or construct a suitable support
as shown in Fig. 3-74.
Ceiling tiles
Ceiling support
WARNING
It is important that you use extreme care in supporting
the indoor unit inside the ceiling. Ensure that the ceiling
is strong enough to suport the weight of the unit. Before
hanging 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. (Figs. 3-69 and 3-70)
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. 3-73. (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. 3-75.
Suspension bolt
Hexagonal nuts
and washers
(2 sets)
■ RAP Valve Kit (Refrigenrant Accumulation
Protector Valve Kit) (CZ-P160RVK2)
When installing a E1 type indoor unit (either the 8-hp 224 type
or 10-hp 280 type), you must also install the RAP Valve Kit
(CZ-P160RVK2).
●
Connect 2 RAP valve kits in parallel for 224 or 280 type.
●
Secure the RAP valve kit using suspension bolts, etc. within
30 meters from the indoor unit.
● Do not place the RAP valve kit directly on the ceiling.
Gas tube ø15.88
Gas tube ø15.58
Supplied
strainer assembly
Suspension
hook
Fig. 3-73
Indoor Unit Side Outdoor Unit Side
CAUTION
Liquid tube ø9.52
Liquid tube ø9.52
Service cover
6P connector (5 m)
354 319 372
159.5
Valve body
80 80
Fig. 3-74
1045
Note: This figure shows the valve body with the suspension hook
and strainer assemblies installed.
3-28. Installing the Refrigerant Tubing
The size of the refrigerant tubing is as shown in the table below.
Table 3-4
224 Type
ø19.05
Gas tube
(Brazing connection) (Brazing connection)
ø9.52
Liquid tube
(Flare connection) (Flare connection)
● When brazing the gas tubing, cool the tubing with dampened
shopcloths as you work, as shown in the figure below, to
protect the unit's thermistor from the heat generated by
brazing.
Thermistor (inside unit)
Fig. 3-75
Gas tubing
Dampened shopcloths
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2011/01/12 13:55:54 Pana_indoor_336012_Eng.indb 28
●
Be sure to insulate both the gas tubing and liquid tubing.
In addition, wrap the supplied insulation material around
the tubing joints, and fasten in place with vinyl tape or other
means. Failure to insulate the tubing may result in water
leakage from condensation.
● Plug all gaps at tube through-holes in the unit with insulation
or a similar substance to prevent air leakage.
●
When connecting an embedded ceiling type unit (like this
one) to a refrigerant system where individual operation is
possible, install 2 RAP valve kits (CZ-P160RVK2) in parallel.
(For details on connecting the RAP valve kit, refer to the
manual that came with the kit.)
Air-outlet grille
Supplied strainer
assembly
3-29. Installing the Drain Piping
(1) Prepare standard hard PVC pipe (O.D. 32 mm) for the
drain and use the supplied drain socket to prevent water
leaks. The PVC pipe must be purchased separately.
Unit: mm
When doing this, apply adhesive for the PVC pipe at the
connection point.
(2) If connecting a drain joint (supplied) to the threaded drain
Fig. 3-76 port, first wrap the drain port threads with sealing tape,
then connect the joint. (Fig. 3-79)
280 Type
ø22.22
ø9.52
Drain pan
Drain opening
(25A male screw)
(3) After connecting the drain pipe securely, wrap insulator
(field supply) around the pipe.
(4) Ensure the drain pipe has a downward gradient (1/100 or
more) and prepare traps as indicated in Fig. 3-80.
Fig. 3-77
(5) Also, in another part of the pipe arrangement, prepare
traps with an inspection plug to clean dust or debris that
may cause leaking of water. (Fig. 3-81)
(6) After connecting the drain piping, slowly pour water into the
drain pan to check that the water drains smoothly.
3-30. Caution for Ducting Work
●
This unit has high static pressure (applicable external static
Air-intake grille pressure Max. 167 to 216 Pa (17–22 mm Aq). In the case of
small pressure resistance (for instance, a short duct), install
a damper for adjusting air flow volume as air flow volume /
air flow noise increases.
●
If the air conditioner is to be installed in a room such as
Fig. 3-78
an office or meeting room which needs a low sound level,
provide a supply and return noise absorption chamber with
an acoustic liner.
●
Include an air filter (field supply) at the return duct.
Indoor Fan Performance
How to Read the Diagram
The vertical axis is the External Static Pressure (Pa) while
the horizontal axis represents the Air Flow (m
characteristic curve for the "H," "Med," and "Lo" fan speed
control.
The nameplate values are shown based on the "H" air flow.
Sealing tape
Therefore in the case of 73 Type, the flow is 23 m
while the External Static Pressure is 190 Pa at "H" position. If
the external static pressure is too great (due to long extension
of duct, for example), the air flow volume may drop too low at
each air outlet.
73 Type
Drain joint
250
(supplied)
200
Fig. 3-79
150
100
Downward gradient
50
0
Min. 1/100
20
Air Flow (m
Good
Not good
Fig. 3-80
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2011/01/12 13:55:55
Min. 50 mm
Inspection plug
Fig. 3-81
3
/minute). The
3
/minute,
106 Type
250
25
25
200
20 20
15 150
15
10 100 10
50
5
5
0 0 0
25 30
25 30 35
3 3
/minute) Air Flow (m /minute)