Select The Best Location - Panasonic CS-XZ20XKEW-H Service Manual

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.
Table A
Capacity
Model W
(HP)
Z20***, XZ20*** 3/4HP
9.52 mm
Z25***, XZ25*** 1.0HP (3/8
Z35***, XZ35*** 1.5HP
Z42*** 1.75HP
12.7 mm
(1/2
Z50***, XZ50*** 2.0HP
15.88 mm
Z71*** 2.5HP
(5/8
(*) Systems with total refrigerant charge, m
Example: For Z20***
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 = (m / (2.5 × (LFL)
min c
A = Required minimum room area, in m
min
m = Refrigerant charge in appliance, in kg
c
LFL = Lower flammability limit (0.307 kg/m
h = Installation height of the appliance (1.8 m for wall mounted)
0
SF = Safety factor with a value of 0.75
** The required minimum room area, A
A = m
min c
The higher value shall be taken when determining the room area.
Piping size
Std. Max
Length Elevation
Gas Liquid
(m)
(m)
15
"
) 15
6.35
15
mm
5
15
"
(1/4 )
"
)
15
20
"
)
lower than 1.84kg are not subjected to any room area requirements.
c
(5/4) 2
× h ))
0
2
3
)
, shall also be governed by the safety factor margin formula below :
min
/ (SF × LFL × h )
0
It is advisable to avoid more
than 2 blockage directions.
For better ventilation &
multiple-outdoor installation,
please consult authorized
dealer/specialist.

This illustration is for explanation purposes only.
Additional
Min. Piping Max. Piping
Refrigerant
Length (m) Length (m)
(g/m)
3 15 10
3 15 10
3 15 10
3 15 10
3 30 15
3 30 25
** not less than safety factor margin
51
Piping
Max.
Length for Indoor
Refrigerant
add. gas A
min
Charge (kg)
(m)
7.5 0.75 Not applicable (*)
7.5 0.88 Not applicable (*)
7.5 0.97 Not applicable (*)
7.5 1.03 Not applicable (*)
7.5 1.47 Not applicable (*)
10 1.85
Connection cable ( )
1/4" Liquid side piping ( )
Gas side piping ( )
Additional drain
hose ( )
Installation parts you
should purchase ( )
2
(m )
4.46