NEN-EN 297/A1
Gas-fired central heating boilers fitted with atmospheric burners - Determination of the useful efficiency at a load corresponding to 30% of the nominal heat input
inactive
| Organization: | NEN |
| Publication Date: | 1 August 1992 |
| Status: | inactive |
| ICS Code (Central heating systems): | 91.140.10 |
scope:
This standard specifies the requirements and test methods for the construction, safety, fitness for purpose, rational use of energy, classification and marking of gas-fired central heating boilers hereafter referred to as "boilers". This standard applies to type B11 and B11BS boilers - fitted with atmospheric burners; - that use gases corresponding to the three gas families and to the pressure stated in 4.1.4; - that have a nominal heat input not exceeding 70 kW (on net calorific value); - where the temperature of the heat carrier does not exceed 95°C during normal operation; - where the minimum water-side operating pressure does not exceed 6 bar.
Document History
December 1, 2006
Gas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW
A description is not available for this item.
October 1, 2004
Gas-fired central heating boilers - Type B11 and B11BS boilers, fittedwith atmospheric burners of nominal heat input not exceeding 70 kW
A description is not available for this item.
April 1, 2003
Gas-fired central heating boilers - Type B11 and B11BS boilers, fittedwith atmospheric burners of nominal heat input not exceeding 70 kW
A description is not available for this item.
June 1, 1999
Gas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW
A description is not available for this item.
August 1, 1998
Gas-fired central heating boilers - Type B11 and B11BS boilers, fitted with atmospheric burners of nominal heat input not exceeding 70 Kw
A description is not available for this item.
April 1, 1997
Gas-fired central heating boilers - Type B11 and B11BS boilers, fitted with atmospheric burners of nominal heat input not exceeding 70 kW
A description is not available for this item.
March 1, 1997
Gas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 Kw
A description is not available for this item.
July 1, 1996
Gas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW
A description is not available for this item.
November 1, 1994
Gas-fired central heating boilers - Type B11 and B11BS boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW
This standard specifies the requirements and test methods for the construction, safety, fitness for purpose, rational use of energy, classification and marking of gas-fired central heating boilers...
NEN-EN 297/A1
August 1, 1992
Gas-fired central heating boilers fitted with atmospheric burners - Determination of the useful efficiency at a load corresponding to 30% of the nominal heat input
This standard specifies the requirements and test methods for the construction, safety, fitness for purpose, rational use of energy, classification and marking of gas-fired central heating boilers...