The flow must have a suitable temperature difference
for the operating case (heating operation: 5 - 10 °C, hot
water generation: 5 - 10 °C, pool heating: approx. 15 °C)
between controlling supply temperature sensor and re-
turn line sensor. Check these temperatures in menu 3.1
"service info" and adjust the heating medium pumps’
(GP1) speed until the temperature difference is obf-
tained. A high difference indicates a low heating medium
supply and a low difference indicates a high heating
medium supply.
1 cirkulationspump
2 cirkulationspumpar
1 circulation pump
2 circulation pumps
F1345 24 kW
60%
80%
0
0 0,5 1,0 1,5 2,0 2,5
10
20
30
40
50
60
70
Tillgängligt tryck
(kPa)
Flöde
(l/s)
100%
40%
80
90
External available pressure
Flow
0
0,0 0,2 0,4 0,6 0,8 1,0 1,2
10
20
30
40
50
60
100
Flöde
(l/s)
100%
80%
60%
40%
90
80
70
Tillförd eleffekt
(W)
Electrical power circulation pump
Flow
F1345 30 kW
0
0,0 1,0 1,5 2,0 2,5
10
20
30
40
50
60
90
Externt tillgängligt tryck (kPA)
Flöde
(l/s)
100%
80%
60%
40%
70
0,5
80
100%
80%
60%
40%
External available pressure (kPa)
Flow, l/s
0
0,0 0,4 0,6 0,8 1,0 1,2
10
20
30
40
50
60
100
Eleffekt per cirkulationspump (W)
Flöde
(l/s)
100%
80%
60%
40%
70
0,2
90
80
Flow, l/s
Electrical output per circulation pump (W)
F1345 40 kW
0
0 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0
10
20
30
40
50
60
100
Externt tillgängligt tryck (kPa)
Flöde
(l/s)
100%
80%
60%
40%
40%
60%
80%
100%
0,2
90
80
70
External available pressure (kPa)
Flow, l/s
0
0 0,4 0,5 0,6 0,7 0,8 0,9 1,0
10
20
30
40
50
60
100
Eleffekt per cirkulationspump (W)
Flöde
(l/s)
100%
80%
60%
40%
70
0,1
0,2
0,3
90
80
Flow, l/s
Electrical output per circulation pump (W)
39Chapter 6 | Commissioning and adjustingNIBE F1345
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