HVAC System & Efficiency Calculator

Two checks for an air-conditioned building, kept apart: how much outdoor air each zone must be given, and how efficient the cooling equipment you have picked must be under the Green Building Code.

• Outdoor air for the breathing zone, from the people and the floor area.
• Zone outdoor airflow after air distribution effectiveness.
• The Green Building Code efficiency your cooling equipment must meet for its type and capacity.
• Follows: ASHRAE 62.1, ventilation rate procedure; Philippine Green Building Code, equipment efficiency tables.
• It does not calculate a cooling load or size an air handling unit.

• Natural Ventilation and Window Calculator
• Lighting Power Density Calculator
• Overall Thermal Transfer Value Calculator
• Step-by-step guide: HVAC System & Efficiency Calculator