Water Connecting Pipe - Bosch Compress 7400i AW Installer's Manual

Heat Pump Delta heat
transfer medium
(K)
5 OR 5
7 OR 5
1) For pipes and components between the heat pump and indoor unit.
Table 6 Pipe dimensions and maximum pipe lengths (single section) for connecting the heat pump to the indoor unit AWM
Heat Pump Delta heat
transfer medium
(K)
5 OR 5
7 OR 5
1) For pipes and components between the heat pump and indoor unit.
Table 7 Pipe dimensions and maximum pipe lengths (single section) for connecting the heat pump to the indoor unit AWMB
Heat Pump Delta heat
transfer medium
(K)
5 OR 7
7 OR 7
1) For pipes and components between the heat pump and indoor unit.
2) The installation of a 3-way valve in the DHW circuit of the system was factored into the calculation of the pipe lengths.
Table 8 Pipe dimensions and maximum pipe lengths (single section) when connecting the heat pump to the AWB indoor unit with mixer for the external
auxiliary heater
Heat Pump Delta heat
transfer medium
(K)
5 OR 5
7 OR 5
1) For pipes and components between the heat pump and indoor unit.
2) The installation of a 3-way valve in the DHW circuit of the system was factored into the calculation of the pipe lengths.
Table 9 Pipe dimensions and maximum pipe lengths (single section) for connecting the heat pump to the AWE indoor unit with integrated electric
booster heater
5.5.2

Water connecting pipe

NOTICE
Damage due to risk of frost!
If the condensate freezes and cannot be routed away from the heat
pump, the evaporator may be damaged.
▶ Always install pipe trace heating if ice is likely to form in the
condensate hose.
Remove condensate via a frost-free drain of the heat pump, possibly
equipped with pipe trace heating. The drain must slope sufficiently to
prevent water from accumulating in the pipe.
The condensate can be routed to either a gravel bed, a stone box or into
a rainwater gully.
▶ Route 32 mm plastic pipe from the condensate connection to a drain.
▶ Connection of pipe trace heating  Chapter 7.1.
Compress 7400i AW – 6721833372 (2021/09)
Nominal flow Maximum
rate (l/s) pressure
reduction (kPa)
0.33 55
0.43 40
Nominal flow Maximum
rate (l/s) pressure
reduction (kPa)
0.33 56
0.44 46
Nominal flow Maximum
rate (l/s) pressure
reduction (kPa)
0.32 52
0.32 54
Nominal flow Maximum
rate (l/s) pressure
reduction (kPa)
0.34 57
0.43 44
AX20 inside Ø AX25 inside Ø
15 (mm) 18 (mm)
1)
Maximum pipe length [A, 13] PEX (m)
7 16.5
4 10.5
AX20 inside Ø AX25 inside Ø
15 (mm) 18 (mm)
1)
Maximum pipe length [A, 13] PEX (m)
7 10
4 10
AX20 inside Ø AX25 inside Ø
15 (mm) 18 (mm)
1)
Maximum pipe length [A, 13] PEX (m)
8.5 22
22.5
AX20 inside Ø AX25 inside Ø
15 (mm) 18 (mm)
1)
Maximum pipe length [A, 13] PEX (m)
8.5 21.5
10.5
Installation
AX32 inside Ø AX40 inside Ø
26 (mm) 33 (mm)
30
30
AX32 inside Ø AX40 inside Ø
26 (mm) 33 (mm)
30 30
30 30
AX32 inside Ø AX40 inside Ø
26 (mm) 33 (mm)
2)
30
30
AX32 inside Ø AX40 inside Ø
26 (mm) 33 (mm)
2)
30
30
11