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Elco R3600 Manual

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Commissioning
Check water flow
27
q
actual
= (T
nominal
/ T
measured
) * q
nominal
[m
3
/h]
q
actual
= (p
measured
/ p
nominal
) * q
nominal
[m
3
/h]
Check water flow
The water flow through the boiler can
be checked with two different methods
shown below.
T measurement
Check the temperature difference over
the boiler (T flow-return) when the
boiler is running on 100% load. The
nominal T is 20K and must be at least
between 15K and 25K for secure boiler
operation. An indication of the actual
flow rate can be found with the follo-
wing calculation (see table below for
nominal data):
p measurement
Check the pressure difference over the
boiler (p flow-return) when the boiler
pump is running (burner on is not requi-
red). The nominal p for each boiler
type can be found in the table below,
actual p must be within:
0.35*p
nom
P 1.75*p
nom
. An indi-
cation of the actual flow rate can be
found with the following calculation (see
table below for nominal data):
Flow rate R3406 - R3410 at T 20K
R3406 R3407 R3408 R3409 R3410
Nominal flow
[m
3
/h]
51,6 56,1 64,1 72,1 80,1
p at nom. flow [kPa]
58 91 60 130 165
Flow rate R3501 - R3505 at T 20K
R3501 R3502 R3503 R3504 R3505
Nominal flow
[m
3
/h]
26,4 30,8 34,9 39,0 43,0
p at nom. flow [kPa]
37 25 30 35 40
Flow rate R3600 - R3605 at T 20K
R3600 R3601 R3602 R3603 R3604
Nominal flow
[m
3
/h]
24,7 27,6 32,2 36,5 40,8
p at nom. flow [kPa]
48 56 38 45 53
R3605
45,0
60
Flow rate R3401 - R3405 at T 20K
R3401 R3402 R3403 R3404 R3405
Nominal flow
[m
3
/h]
28.5 31.6 37.0 41.8 46.8
p at nom. flow
[kPa]
46 53 36 43 50
… 29 …


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