15
2.
For the Installer
2.3.4 Water-side resistance (pressure loss)
Pressure
loss
(psi)
BioWIN XL
Diagram 1
1
0,1
200
2000
INFORMATION
If using a buffer, the BioWIN XL return flow temperature must be increased – see
hydraulic diagram in the planning documents.
Important general comments on water quality for existing systems
– De-sludge the system.
– Rinse the system.
– Clean the system with a universal cleaning agent to remove waste material (copper, fiber mass, welding paste).
– Carefully rinse the system until the water is clean and free of any impurities. Check the connection tightness
of the combustion air supply and extraction.
The thorough cleaning of the system must be performed by a professional. A sufficient and controlled flow is
required to remove all impurities and residues from the heating circuit. In the case of cleaning with chemical
products, the above points are especially important for avoiding any residues from corrosive products.
In the event of considerable impurities/clogging (deposits of lime), the boiler must be cleaned by a professional
with appropriate tools.
Circulation filter/dirt trap
The ins
tallation of a dirt trap is recommended. In accordance with ÖNORM H5195, a filter sharpness of ≤ 25 μm
is required.
Water treatment
The compatibility of the product with all system materials must be checked when using a water treatment system.
Observe the manufacturer’s instructions.
The water must be regularly checked, and if necessary, changed.
Practical advice:
The system‘s water quality must be regularly checked by a professional (at least every two years), especially
after filling or refilling the water. Record all treatment measures in a report to document the maintenance work
on the boiler and system.
Flow rate (gal/h)