Outdoor Unit - Panasonic CS-TZ25ZKEW Service Manual

12.5 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
Piping size
Capacity
Model
W (HP)
Gas
TZ20*** 3/4HP
TZ25***,
9.52 mm
1.0HP
RZ25***
"
(3/8 )
TZ35***,
1.5HP
RZ35***
TZ42*** 1.75HP
12.7 mm
TZ50***,
2.0HP
"
RZ50*** (1/2 )
TZ60*** 2.25HP
15.88 mm
TZ71*** 2.5HP
"
(5/8 )
(*) Systems with total refrigerant charge, m
Example: For TZ20***
If the unit is installed at 10 m distance, the quantity of additional refrigerant should be 25 g .... (10-7.5) m x 10 g/m =
25 g.
A = (m / (2.5 × (LFL)
min c
= Required minimum room area, in m
A
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
= Safety factor with a value of 0.75
SF
** The required minimum room area, A
A = m
min c
The higher value shall be taken when determining the room area.
12.5.1 Outdoor Unit Installation Diagram
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.
Std.
Length (m) Elevation (m)
Liquid
6.35 mm
5
"
(1/4 )
, lower than 1.84 kg 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
Max Min. Piping Max. Piping
Length (m) Length (m)
15 3 15
15 3 15
15 3 15
15 3 15
15 3 20
15 3 30
20 3 30
** not less than safety factor margin
78
Additional Piping Length
Refrigerant for add. gas Refrigerant
(g/m) (m) Charge (kg)
10 7.5
10 7.5
10 7.5
10 7.5
15 10
15 10
25 10
Connection cable ( )
1/4" Liquid side piping ( )
Gas side piping ( )
Additional drain
hose ( )
Installation parts you
should purchase ( )
Max.
Indoor
2
A (m )
min
0.60 Not applicable (*)
0.69 Not applicable (*)
0.75 Not applicable (*)
0.87 Not applicable (*)
1.22 Not applicable (*)
1.52 Not applicable (*)
1.85 4.46