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3. APPLIANCE DATA AND EFFICIENCY
3.1 Appliance data.
The appliance information label is on the inner face of the back panel at the lower left
hand side. It is visible when the fascia is removed.
3.2 Efficiency.
The efficiency of this appliance has been measured as specified in BS 7977 - 1 and
the result is as below :
Model
Efficiency % (Gross)
347 Brava
73
The gross calorific value of the fuel has been used for this efficiency calculation. The
test data from which it has been calculated has been certified by BSI. The efficiency
value may be used in the UK Government's Standard Assessment Procedure (SAP)
for energy rating of dwellings.
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.
Page 8
©
GDC Group Ltd. OCT 2016
INSTALLER GUIDE
Gas
Natural (G20)
Inlet Pressure
20mbar
Input - Max. (Gross)
5.5 kW (18,424 Btu/h)
Input - Min. (Gross)
1.57W (5,357 Btu/h)
Burner Test Pressure (Cold)
17.95 + 0.75mbar (7.14 + 0.3in w.g.)
Gas Connection
8mm pipe
Burner Injector - Upper (Centre Radiants)
Cat 28 - 170
Burner Injector - Lower (Outer Radiants)
Cat 28 - 170
Pilot & Atmosphere Sensing Device
P4 - 93
Ignition
Electronic (Mounted on gas valve)
Aeration
Non-adjustable
Gas
Conversion factor from
net
to
gross
efficiency
Natural Gas
0.901