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Installation Instructions
Bosch Climate 5000 Series Wall Mounted Ductless Split Air Conditioner / Heat Pump (06.2022)
8.3 Adding Refrigerant
In North America, the standard pipe length is 7.5m (25ft). The minimum length
is 10ft. The factory charge is suitable for pipe lengths of 10 -25ft. If piping length
exceeds 25ft, the additional refrigerant to be charged can be calculated using the
formula in Table 8. For multi-zone units refer to the multi-zone installation and
operation manual.
Additional refrigerant per pipe length
Connective Pipe
Additional Refrigerant
< Standard pipe length
N/A
> Standard pipe length
Liquid Side: Ø 6.35mm (ø 1/4
"
)
Inverter R410A:
(Pipe length – standard length) x 15g/m
(Pipe length – standard length) x 0.16oZ/ft
Liquid Side: Ø 9.52mm (ø 3/8
"
)
Inverter R410A:
(Pipe length – standard length) x 30g/m
(Pipe length – standard length) x 0.32oZ/ft
Table 8
Single zone refrigerant pipe summary
Model - Single Zone
Capacity (Btu/h)
Inch O.D.
Max. Equivalent Length
m(ft)
Max. Height Variation
m(ft)
IDU
ODU
Liquid Line
Vapor Line
BMS500-AAU006-1AHWXC
BMS500-AAS009-1CSXRC
6K
1/4"
3/8"
30 (98ft)
20 (66ft)
BMS500-AAU009-1AHWXC
BMS500-AAS009-1CSXRC
BMS500-AAS009-1CSXHC
9K
1/4"
3/8"
30 (98ft)
20 (66ft)
BMS500-AAU012-1AHWXC
BMS500-AAS012-1CSXRC
BMS500-AAS012-1CSXHC
12K
1/4"
1/2"
30 (98ft)
20 (66ft)
BMS500-AAU018-1AHWXC
BMS500-AAS018-1CSXRC
BMS500-AAS018-1CSXHC
18K
1/4"
1/2"
30 (98ft)
20 (66ft)
BMS500-AAU024-1AHWXC
BMS500-AAS024-1CSXRC
BMS500-AAS024-1CSXRC
24K
3/8"
5/8"
50 (164ft)
25 (82ft)
BMS500-AAS030-1AHWXC
BMS500-AAS030-1CSXRC
30K
3/8"
5/8"
50 (164ft)
25 (82ft)
BMS500-AAS036-1AHWXC
BMS500-AAS036-1CSXRC
36K
3/8"
5/8"
65 (213ft)
30 (98.5ft)
Table 9
CAUTION: CONTAINS REFRIGERANT
NEVER mix refrigerant types.