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Service Manual
Bosch Climate 5000 Series Ductless Air Conditioner / Heat Pump Multi Zone Outdoor Units (01.2023)
6 Installation Details
6.1 Torque Requirements
Outer Diameter of Tube
mm (in.)
Tightening Torque
N•m (lb ft)
Max. Tightening
Torque N•m (lb ft)
Ø 6.35 (Ø 0.25”) 1,500 (11lb • ft) 1,600 (11.8lb • ft)
Ø 9.52 (Ø 0.375”) 2,500 (18.4lb • ft) 2,600 (19.18lb • ft)
Ø 12.7 ( Ø 0.5”) 3,500 (25.8lb • ft) 3,600 (26.55lb • ft)
Table 7
6.2 Connecting the Cables
The power cord should be selected according to the following specifications sheet.
f Cable type: SOOW type
Capacity AWG Wire Size
18K ODU 14
27K ODU 14
36K ODU 12
48K ODU 10
Table 8
For IDU and ODU connection, use 16 AWG for all applications.
The cable sizes are determined by the maximum current indicated on the
nameplate which is located on the side panel of the unit. Please refer to the
nameplate before selecting the cable, fuse and switch. A means of disconnecting
the power, should be within 10 feet of the outdoor unit.
6.3 Pipe Length and the Elevation
Maximum Piping Length and Height Difference
1 drive 2 1 drive 3 1 drive 4 1 drive 5
Max. length for all rooms (m)
40
(131ft)
60
(197ft)
80
(262ft)
80
(262ft)
Max. length for one IU (m)
25
(82ft)
30
(98ft)
35
(115ft)
35
(115ft)
Max. height difference
between IU and OU (m)
15
(49.2ft)
15
(49.2ft)
15
(49.2ft)
15
(49.2ft)
Max. height difference
between IUs (m)
10
(33ft)
10
(33ft)
10
(33ft)
10
(33ft)
Table 9
Capacity
Pipe size
Liquid side
(in / mm)
Gas side
(in / mm)
18k 2 x 1/4" / 2 x Φ6.35 2 x 3/8" / 2 x Φ9.52
27k 3 x 1/4" / 3 x Φ6.35 3 x 3/8" / 3 x Φ9.52
36k 4 x 1/4" / 4 x Φ6.35 4 x 3/8" / 4 x Φ9.52
48k 5 x 1/4" / 5 x Φ6.35
3 x 3/8" + 2 x 1/2"
3 x Φ9.52 + 2 x Φ12.7
Table 10
Additional Refrigerant Charge
Piple Size Additional charge for each unit length
Φ6.35 (1/4") liquid pipe 15g (0.161 oz)
Φ9.52 (3/8") liquid pipe 30g (0.322 oz)
Table 11
For indoor units piping information, check correspondence indoor unit
manual.
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