Water Quality - Buderus Logano GE515 Operating Instructions Manual

3 Using correct fill and make-up water
3.2

Water quality

Any water contains substances, e. g. Ca (HCO
(Calcium hydrogen-carbonate), which may influence the
function of your heating system. These may lead to
corrosion, scaling or deposits.
Regularly check your water quality and, if necessary,
treat your fill and make-up water, to ensure that your
heating system permanently retains its economy,
function, operational reliability and energy efficiency.
SYSTEM DAMAGE
through corrosion and scaling because of
fill and make-up water, which does not
CAUTION!
comply with system-specific requirements.
 Check with your local heating
contractor or your water supply
company regarding the Ca (HCO
concentration (calcium hydrogen-
carbonate) in your area.
 You should treat the fill and make-up
water, if it does not comply with system-
specific requirements. In such cases
contact your local heating engineer.
Observe the following table regarding the appropriate
use and treatment of the fill and make-up water.
This table is an extract from the Code of Practice K8
"Water treatment for hot water heating systems" in the
Buderus sales catalogue.
Total rated boiler
output in kW
100 < Q 350
350 < Q 1000
100 < Q 350
350 < Q 1000
Tab. 1 Requirements of filling, make-up and heating water
8
)
3
Ca (HCO ) concentration
3 2
in mol/m³
2.0
1.5
> 2.0
> 1.5
Operating instructions Oil- and gas-fired special boilers Logano GE515 • Issue 2018/01
2
)
3 2
Maximum fill and make-up water
volume V
V = three times the system volume
max
V = 0 0313 ,
max
We reserve the right to make any changes due to technical modifications.
in m³
max
 

Q kW
------------------------------------------------ -
 
 
mol
 
--------- -
Ca HCO
3
2 3
m
Heating water pH
value
8.2–9.5
8.2–9.5