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Elco R600 IP-ZW Manual

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37
Tapwater-bypassketel
Wanneer een temperatuurverhoging van meer dan 17K in één keer noodzakelijk is, kan
gekozen worden voor een tapwaterketel met geïntegreerde bypass. De geïntegreerde
bypasspomp zorgt voor de minimale volumestroom door de ketel ter bescherming van de
warmtewisselaar.
Bij een tapwater-bypassketel transporteert de interne bypasspomp geen water naar het
systeem. Hiervoor dient een separate systeempomp te worden geselecteerd, afgestemd op
de gewenste ΔT van het systeem. Hieronder is de toepassing schematisch weergegeven,
inclusief twee tabellen met de noodzakelijke informatie ten behoeve van de selectie van de
systeempomp. In de tabellen is reeds rekening gehouden met een extra systeemweerstand
van 10 kPa.
Gegevens bypasspomp
R601 R602 R603 R604 R605 R606 R607
Pomptype [-] UPS
32-80B
UPS
32-80B
UPS
32-80B
UPS
32-80B
UPS
32-120FB
UPS
40-120FB
UPS
50-120FB
Spanning [V] 230 230 230 230 230 230 400
∆T = 40K Curve instelling [-] 2 2 3 3 1 1 1
∆T = 50K 2 3 3 3 2 2 2
∆T = 55K 2 3 3 3 2 2 2
∆T = 60K 2 3 3 3 3 2 2
∆T = 70K 2 3 3 3 3 3 2
∆T = 80K 2 3 3 3 3 3 2
Ontwerpgegevens systeempomp
R601 R602 R603 R604 R605 R606 R607
∆T = 40K Volumestroom [m3/h] 3.1 4.1 5.1 6.1 8.2 10.2 11.6
Benodigde opvoerh. [kPa] 35.5 28.9 57.3 50.7 42.3 49.0 60.6
∆T = 50K Volumestroom [m3/h] 2.4 3.2 4.1 4.9 6.5 8.2 9.2
Benodigde opvoerh. [kPa] 30.3 58.5 50.8 44.4 40.8 56.3 64.6
∆T = 55K Volumestroom [m3/h] 2.2 2.9 3.7 4.4 5.9 7.4 8.4
Benodigde opvoerh. [kPa] 27.3 56.4 48.7 41.4 34.7 53.0 61.4
∆T = 60K Volumestroom [m3/h] 2.0 2.7 3.4 4.1 5.4 6.8 7.7
Benodigde opvoerh. [kPa] 26.2 55.4 46.6 39.3 58.6 47.9 69.1
∆T = 70K Volumestroom [m3/h] 1.7 2.3 2.9 3.5 4.7 5.8 6.6
Benodigde opvoerh. [kPa] 24.2 52.3 44.4 35.2 51.4 61.6 66.8
∆T = 80K Volumestroom [m3/h] 1.5 2.0 2.6 3.1 4.1 5.1 5.8
Benodigde opvoerh. [kPa] 22.1 50.2 40.3 30.2 45.3 53.5 65.6
R1
R2
P1
P2
Q1
Q2
Q1+Q2
P1 = bypasspomp
P2 = systeempomp
… 37 …


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