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We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano GE315 • Issue 02/2006
3System start-up
3 System start-up
You can connect series 4000 control devices to GE315
boilers. These control devices are commissioned
through identical steps.
z Complete the commissioning report (see chapter 3.5
"Commissioning report", page 37).
3.1 Filling the heating system and
checking for leaks
Observe the following table regarding the appropriate
use and preparation 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.
The ph value of the heating water increases after the
system has been filled. Check after the first three to six
months (during the first maintenance), whether the ph
value of the heating water has settled down.
CAUTION!
BOILER DAMAGE
through heavy dust deposits.
z Do not operate the boiler where heavy
dust contamination persists, e.g.
through building work inside the boiler
room.
CAUTION!
SYSTEM DAMAGE
through temperature stresses.
z Fill the heating system only via the
filling connection in the pipework
(return) of the heating system. (In the
UK fill the system in accordance with
the WRAS approved methods).
Total boiler
output
in kW
Ca (HCO
3
)
2
concentration of the fill
and make-up water in mol/m³
Maximum fill and make-up water
volume V
max
in m³
Heating water pH
value
100 < Q ≤ 350 ≤ 2,0
V
max
= three times the system volume 8.2–9.5
350 < Q ≤ 1000 ≤ 1.5
100 < Q ≤ 350 > 2.0
8.2–9.5
350 < Q ≤ 1000 > 1.5
Tab. 2 Requirements of filling, make-up and heating water
V
max
00313
QkW()
Ca HCO
3
()
2
mol
m
3
----------
⎝⎠
⎛⎞
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⋅,=
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