CTC Union EcoZenith i350 H, Руководство по установке и обслуживанию, Страница: 53 / 116

53 CTC EcoZenith i350
low
[l/s] copper pipe 22 mm [m] copper pipe 28 mm [m] copper pipe 35 mm [m]
0.1 >20 >20 >20
0.12 >20 >20 >20
0.14 >20 >20 >20
0.17 21 >20 >20
0.19 17 >20 >20
0.22 12 >20 >20
0.24 10 >20 >20
0.26 8 >20 >20
0.29 >20 >20
0.31 18 >20
0.33 15 >20
0.36 12 >20
0.38 10 >20
0.41 8 >20
0.43 18
0.45 15
Step 2 Check minimum heat pump low
To install an air-to-water heat pump, the flows shown below must be used
even if step 1 gives a lower flow.
CTC EcoAir 406 0.21 l/s
CTC EcoAir 408 0.27 l/s
CTC EcoAir 510 0.21 l/s
CTC EcoAir 520 0.39 l/s
This building requires: [l/s]
Step 3 Check whether a volume tank is needed
If the flow is below 0.45 l/s, the system can manage without a CTC VT 80
volume tank. If the system has a high pressure differential, a volume tank
may be required. If the required flow is greater than 0.45 l/s, this accessory
should be installed.
A CTC VT 80 volume tank must be installed to increase the flow in the
system in the following cases:
• If the flow exceeds 0.45 l/s.
• If a mixing valve for an EHS-tank or external peak needs to be installed
and the flow exceeds approx.: 0.35 l/s.
• If the flow in the heating circuit can be closed quickly, e.g. floor heating
with no bypass etc.
A CTC VT 80 volume tank should be installed in the following cases:
• The system volume is less than 20 litres per kW heat pump to achieve
good operation.
Step 4 Dimension the pipeline to the heat pump
The pipe dimensioning between the heat pump and CTC EcoZenith 350
depending on flow and number of metres between the products (single
route).