Panasonic CU-RZ80VKR - Select the Best Location

68
12.3 Select the Best Location
12.3.1 Outdoor Unit
 If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from
the condenser is not obstructed.
 There should not be any animal or plant which
could be affected by hot air discharged.
 Keep the spaces indicated by arrows from wall,
ceiling, fence or other obstacles.
 Do not place any obstacles which may cause a
short circuit of the discharged air.
 If piping length is over the [piping length for
additional gas], additional refrigerant should be
added as shown in the table.
It is advisable to avoid more
than 2 blockage directions.
For better ventilation &
multiple-outdoor installation,
please consult authorized
dealer/specialist.
Installation parts you
should purchase (

)
Power supply cable (

)
Connection cable (

)
1/4" Liquid side piping (

)
Gas side piping (

)
Additional drain
hose (

)
100 mm
or more
300 mm
or more
300 mm
or more
1000 mm
or more
100 mm
or more
 This illustration is for explanation purposes only.
Table A
Model
Capacity
W
(HP)
Piping size
Std.
Length
(m)
Max
Elevation
(m)
Min.
Piping
Length
(m)
Max.
Piping
Length
(m)
Additional
Refrigerant
(g/m)
Piping
Length for
add. gas
(m)
Max.
Refrigerant
Charge
(kg)
Indoor
A
min
(m
2
)
Gas Liquid
RZ25*** 1.0HP
9.52 mm
(3/8
")
6.35 mm
(1/4
")
5
15 3 20 10 7.5 0.80 Not applicable (*)
RZ35*** 1.5HP 15 3 20 10 7.5 0.98 Not applicable (*)
RZ42*** 1.75HP
12.7 mm
(1/2
")
15 3 20 10 7.5 1.00 Not applicable (*)
RZ50*** 2.0HP 15 3 30 15 10 1.44 Not applicable (*)
RZ60*** 2.25HP 15 3 30 15 10 1.52 Not applicable (*)
RZ71*** 2.5HP
15.88 mm
(5/8
")
20 3 30 25 10 1.82 Not applicable (*)
RZ80*** 3.0HP 20 3 30 25 10 1.99 4.80
(*) Systems with total refrigerant charge, m
c
lower than 1.84kg are not subjected to any room area requirements.
Example: For RZ25***
If the unit is installed at 10 m distance, the quantity of additional refrigerant should be 25 g .... (10-7.5) m × 10 g/m =
25 g.
A
min
= (m
c
/ (2.5 × (LFL)
(5/4)
× h
0
))
2
** not less than safety factor margin
A
min
= Required minimum room area, in m
2
m
c
= Refrigerant charge in appliance, in kg
LFL
= Lower flammability limit (0.307 kg/m
3
)
h
0
= Installation height of the appliance (1.8 m for wall mounted)
SF
= Safety factor with a value of 0.75
** The required minimum room area, A
min
, shall also be governed by the safety factor margin formula below :
A
min
= m
c
/ (SF × LFL × h
0
)
The higher value shall be taken when determining the room area.