The following options are available:

Calculation of heating thermal loads

• Analysis method
  • ASHRAE
    By checking this option, the program uses the ASHRAE Radiant Time Series Method (RTSM) to calculate heating loads.
  • EN 12831 code
    By checking this option, the calculation of heating loads is carried out according to EN 12831. In this case, the definition of the following parameters is required:
    • Coefficient n₅₀
      • Defined 
      • Analsyed
        • Air tightness of the building envelope
          • High (high-quality insulation of doors and windows)
          • Medium (double-glazed windows, normal insulation)
          • Low (single-glazed windows, no insulation)
          • Air permeability of the envelope at 4 Pa
        • Número de plantas del edificio
    • Type of building (Single family home / Household / Offices / Hotel / Restaurant / Teaching / Hospital / Other uses)
    • Shielding class (No shielding / Moderate shielding / Heavy shielding)
    • Correction factor due to outdoor dry-bulb temperature oscillation
    • Reheat factor (optional)
      The reheat factor is a correction factor, defined in EN12831, which depends on the characteristics of the building and the installation. In the appendices of this standard, different values are proposed for this parameter depending on the type of building, the mass of the building and the reheating time and the internal temperature drop assumed during disconnection. By clicking on the button on the right, these parameters can be defined and the associated value for the reheat factor can be imported:
      • Reheat time (hours)
      • Interior temperature drop
      • Building mass (High / Medium / Low)

• Latent load calculation (optional)
• Safety factor (optional)
• Orientation safety factor (optional) (N, S, E, W)

Calculation of thermal cooling loads

• Anual / Monthly
• Latent cooling factor (optional)
• Sensible cooling factor (optional)