Cranborne THI 5-25c, Инструкция по установке, наладке и обслуживанию

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TECHNICAL SPECIFICATIONS
5 - MODULATING PUMP CHARACTERISTICS
Advantages :
- Modulation allows a reduction in the electrical
consumption of the pump by adapting its flow to
the needs of the installation.
- Varying the flow and controlling the return tempe-
rature enables the boiler efficiency to be optimi-
zed.
- This modulating pump also reduces the noise
created by the installation (circulation noise).
The modulating pump option is only
possible with a single heating circuit.
The modulation function can be deac-
tivated via the KonfigRg7 parameter.
It is possible to limit the modulation range via the pa-
rameters “NqmodNenn” (Max range) and
“NqmodMin” (min. range) (fig. 12).
Action on the “min” allows the equilibrium of the ins-
tallation to be adapted.
Note:
- A perfectly balanced installation makes for better
use of the pump capacities.
!
Fig. 11
Pu
m
p
m
od
ul
at
in
g
He
a
d
(
m
)
P1
(
W
)
Q (m3/h)
Q (m3/h)
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0
0 10 20 30 40 50 60 70 80 90
NqmodNenn
(= 18)
Allure calculée
pour NqmodMin
(= 6)
QmodDrehzStufen
(= 30 )
QmodMin
(= 3 %)
NqmodMin (= 40)
QmodMax
(= 82 %)
100 %
Plage de modulation
de la pompe
7494d38
/0102
A
llu
re
[
-]
Degré de modulation (PWM) [%]
Fig. 12
QmodMin
(=2%)
QmodMax
(=84%)
Modulation degree (PWM) [%]
R
ate
[-]
Rate calculated
for NqmodMin
(=6)
Pump modulation
range