22/30450368 DC

This standard 22/30450368 DC BS EN 12309-3. Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW is classified in these ICS categories:

• 91.140.30 Ventilation and air-conditioning systems
• 27.080 Heat pumps

This part of EN 12309 specifies the requirements, test methods and conditions for gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW. This part of EN 12309 deals particularly with test protocols and tools to calculate the capacity, the gas utilization efficiency and the electrical power input of the appliance. This data can be used in particular to calculate the seasonal efficiency of the appliance.