The new version of Trimble Nova 16.3 helps HVAC engineers and installers to calculate calorimetry in accordance with the current SIA 384/2:2020 standard, also using intelligent online technologies that offer numerous benefits to users.
Trimble Nova 16.3 offers thermal load calculations in accordance with the new Swiss standard SIA 384/2:2020. In addition, Trimble Nova also supports the current national annexes for Germany (DIN EN 12831) and Austria (H 7500-1). Calculating heat loss is one of the main tasks of HVAC engineers and installers. In both old and new buildings, it is used to determine the normative heating requirements per room, and to size heating surfaces, distribution networks and heat production to ensure reliable, economical operation.
What's new in SIA 384/2:2020?
SIA 384/2:2020 "Heating systems in buildings - Power requirements" defines easy-to-use methods valid for Switzerland for calculating standardized static heat loads under standard conditions. The main changes from the previous version of SN EN 12831:2003 are as follows:
When calculating the thermal load, heat input can be taken into account.
For room heights of 4 metres or more, the ambient temperature is corrected for each building element.
The influence of groundwater has been taken into account since SIA 380/1.
For the determination of the estimated ambient temperature of non-actively heated rooms, the method of SN EN 12831-1:2017 has been adopted.
The equivalent thermal transmittance for buried wall calculations is calculated using the simplified procedure in SN EN 12831-1:2017.
For ventilation losses, only the minimum air exchange rate is now taken into account. For minimum air exchange rates, different values can be used (depending on circumstances).
