How to eliminate: "Cannot determine Dpmin on valve": Difference between revisions
Muskietorzj (talk | contribs) |
|||
| Line 20: | Line 20: | ||
==Problem description== | ==Problem description== | ||
''<IS_TS id=MinimalnySpadekCisnienia/>'' | ''<IS_TS id=MinimalnySpadekCisnienia/>'' across the ''<IS_TS id=pinNameZawor/>'' component is helpful, in the case of valves installed near or on terminal units, in obtaining the required authority; in addition, for some valve types (e.g. ''<IS_TS id=rpRegulatorDP/>'') manufacturers recommend a specific value of ''<IS_TS id=sMinSpadekCisnienia/>''. For the calculation, the value is taken from the valve data table and can be changed individually there. | ||
Problems related to the program's inability to achieve the set ''<IS_TS id=sMinSpadekCisnienia/>'' are identified by the message: | |||
'''''<IS_TS id=strerrNieMogeUstanowicDPMinDlaZaworu/>''''' | '''''<IS_TS id=strerrNieMogeUstanowicDPMinDlaZaworu/>''''' | ||
<br/> | <br/> | ||
The above message appears when: | |||
* | * ''<IS_TS id=pinNameZawor/>'' has no settings (has a specified ''<IS_TS id=stringSpecOporyZnaneKv/>'' value) and has no thermostatic head, | ||
* | * for the smallest setting the flow through the ''<IS_TS id=pinNameZawor/>'' does not produce the required pressure drop. | ||
==Solution== | ==Solution== | ||
Revision as of 19:03, 10 July 2022
| Product | InstalSystem 5 |
| Type of article | TIP&TRICK |
| Source for translation | 2022-03-15 |
Problem description
Minimum pressure drop across the Valve component is helpful, in the case of valves installed near or on terminal units, in obtaining the required authority; in addition, for some valve types (e.g. Δp controller) manufacturers recommend a specific value of Δpmin. For the calculation, the value is taken from the valve data table and can be changed individually there. Problems related to the program's inability to achieve the set Δpmin are identified by the message:
cannot determine Δpmin on valve
The above message appears when:
- Valve has no settings (has a specified kv value) and has no thermostatic head,
- for the smallest setting the flow through the Valve does not produce the required pressure drop.
Solution
W większości przypadków komunikat diagnostyki cannot determine Δpmin on valve można pozostawić bez "naprawy". W przypadku masowego występowania komunikatu dla elementu Valve na/przy odbiornikach, a więc gdy zachodzi obawa uzyskania zbyt niskich autorytetów, można:
- użyć, o ile są dostępne, zaworów lub wkładek o mniejszym zakresie kv,
- zwiększyć natężenie przepływu przez zakwestionowane odbiorniki, zmniejszając im obliczeniowy spadek temperatury. Jednak o ostatecznej wartości schłodzenia w odbiorniku decyduje opcja Adjust flow rates, która domyślnie jest włączona w oknie General data, Radiator sizing options.
1. Adjust flow rates
