Efficiency; Nox - Valor 500FS Installer And Owner Manual

INSTALLER GUIDE

4.2 Efficiency.

The efficiency of this appliance has been measured as specified in BS 7977 - 1 and
the results are as below :
Model Efficiency % (Gross) Efficiency % (Net)
500RC & 500FS Inspire 72% 80%
Gas Conversion factor from net to gross efficiency
Natural Gas 0.901
The gross calorific value of the fuel has been used for this efficiency calculation.
The conversion of net efficiency to gross was achieved by multiplying the net
efficiency by the following conversion factor from Table E3 of SAP 2005, rounding
down to the nearest whole number.
4.3 NO x
For NG the 'Weighted' result for these appliances equates to NO x Class 4.
©
Page 12
GDC Group Ltd. SEPT 2016