Refrigerant Piping Connection Instructions - Bosch Climate 5000 SCI Series Installation Manual

Refrigerant Piping Connection
Gas piping
Oil trap
Outdoor unit
Fig. 35.
The indoor unit is installed higher than the outdoor unit
CAUTION
If the outdoor unit is installed higher than the indoor unit:
-It is recommended that vertical suction risers not be upsized.
Proper oil return to the compressor should be maintained with
suction gas velocity. If velocities drop below 7.62 m/s, oil return will
be decreased. An oil trap should be installed every 6 m of vertical
suction line riser. (See Fig. 36)
Gas piping
Oil trap
Outdoor unit
Fig. 36.
16
Indoor unit
10 m
Liquid piping
10 m
Indoor unit
6 m
Liquid piping
6 m
The outdoor unit is installed higher than the indoor unit
Permitted length
Piping Total piping
length length
(Farthest dis-
tance from the
line pipe branch)
(Farthest dis-
tance from the
line pipe branch)
Drop Drop height
height between indoor
and outdoor unit
Drop height
between two
indoor units
Table 9.
Size of joint pipes for indoor unit
Capacity of Size of main pipe (mm)
indoor unit (A)
Gas side
18K
Ø12.7
24K Ø15.9
30K Ø15.9
Table 10. Size of joint pipes
Size of joint pipes for outdoor unit
Base on the following tables, select the diameters of the outdoor unit
connective pipes. If the main accessory pipe is larger than the main
pipe, take the larger.
Model Size of main pipe (mm)
Gas side
36K
Ø15.9
42K - 48K
Ø15.9
60K
Ø15.9
Table 11. Size of joint pipes
7.2

Refrigerant Piping Connection Instructions

CAUTION
• DO NOT install the connecting pipe until both indoor and outdoor
units have been installed.
• Insulate both the gas and liquid piping to prevent water leakage.
Climate 5000 SCI – 6720887422 (2019/07)
18K+18K 30 L+Max
(L1, L2)
24K+24K 50
30K+30K
15 L1, L2
10 L1-L2
20 H1
0.5 H2
Liquid side
Ø6.35
Ø9.5
Ø9.5
Liquid side
Ø9.5
Ø9.5
Ø9.5