How to eliminate: "No value of required heating output"

Product	InstalSystem 5
Type of article	TIP&TRICK
Source for translation	2025-04-15

Problem description

The problem relates to the design of the Heating systems for the Radiator in the One-pipe group which is connected to the Radiant heating installation. The Φ_req,H of the specified Radiator is not taken into account to cover the heat loss in a particular Room.

This is indicated with the following diagnostic message:

• No value of required heating output.

Solution

• Indicate the location of the problematic radiator;
• Choose Construction scope;
• For the determined Room in the Data table, Φ_req,H (Required heating output) field, specify Contribution [%] or Φ_req,H for the Radiators;
• Run Calculations.