Radiators made-tp-measure:
Zehnder Charleston radiators with installation lengths above the defined maximum number of elements are supplied in partial blocks and must be nippled together at site. For detailed information, see chapter Zehnder Charleston.
Standard water flow m3
(Heating medium flow, flow quantity, mass flow)
The standard water flow in m3 of a radiator gives a temperature spread of 10 K with a flow temperature of 75 °C (standard heat output conditions).
The actual water flow in m3 of a radiator, at flow and return temperatures other than 75/65 °C can vary considerably from the standard water flow m3.
Example
zehnder universal
The actual mass flow m3 is:
Minimum according to the table: 27 %.
The example thus meets the specification of the minimum water flow. Also see "Minimum water flow".
