Pipework - Primary Circuit - Vaillant Vantage 120 Installation Instructions Manual

7 Installation requirements
18
7.4 Pipework – Primary Circuit
The primary circuit pipework
between the Vaillant boiler and the VANTAGE should be
installed using copper tube of minimum size 22 mm.
If the distance between the boiler and the cylinder is
excessive, a larger pipe diameter may be necessary. It is
not necessary to install a circulating pump in this pipe-
work because all Vaillant wall mounted boilers contain a
built-in circulating pump.
With the VANTAGE connected to a Vaillant boiler the
remaining pump head available, at a flow rate
corresponding to 20 °C temperature difference, is given
in table 3.
System Pipework should be sized such that the resi-
stance of the heating circuit offering the greatest resi-
stance to flow (the index circuit) does not exceed this
figure.
Boiler
THERMOcompact 615 E
THERMOcompact 620 E
THERMOcompact 624 E
THERMOcompact 628 E
ecoMAX 613/2 E
ecoMAX 618/2 E
ecoMAX 622/2 E
Pump head available to
heating circuit (m)
2,5
2,5
2,5
2,5
2,5
2,5
2,5
Vaillant Vantage 120/150/200