General Information; Energy Efficiency - Worcester GB162-50 User Instructions

If you smell gas!
▶ Call the National Gas Emergency Service on:
0800 111 999
▶ Extinguish any naked flames
▶ Do not smoke or strike matches
▶ Do not turn electrical switches on or off
▶ Open doors and windows
▶ Keep people away from the affected area
▶ Turn off the gas control valve at the meter
Boiler Operation
This boiler must only be operated by a responsible adult who has been
instructed in, understands and is aware of the boiler's operating
conditions and effects.
Combustible and Corrosive Materials
Chemically aggressive substances can corrode the boiler and invalidate
any warranty.
▶ Do not store or use any combustible materials (paper, thinners,
paints etc.) inside or within the vicinity of the boiler.
Fittings and Modifications
Only a competent engineer in accordance with the Gas Safety
(Installation and Use) Regulations can remove the outer case and carry
out any work.
▶ Do not open the appliance.
Any misuse or unauthorised modifications to the boiler, flue or
associated components and system will invalidate the warranty.
▶ Do not modify the boiler or flue system in any way.
Worcester, Bosch Group accepts no liability arising from any such
actions. This does not affect your statutory rights.
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Energy efficiency

The following product data satisfy the requirements of the EU Regulations No. 811/2013, No. 812/2013, No. 813/2013 and No. 814/2013
supplementing Directive 2010/30/EU.
Product data
Product type
Condensing boiler
Rated heat output
Seasonal space heating energy efficiency
Energy efficiency class
Useful heat output
At rated heat output and high temperature regime
At 30 % of rated heat output and low temperature regime
Useful efficiency
At rated heat output and high temperature regime
At 30 % of rated heat output and low temperature regime
Auxiliary electricity consumption
At full load
At part load
In standby mode
Other items
Standby heat loss
Ignition burner power consumption
Emissions of nitrogen oxides
Sound power level, indoors
Table 2 Product data for energy consumption
1) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
2) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet).
6720813172 (2015/04)
CE label
The appliance complies with the basic requirements of the relevant
European directives.
Conformity has been substantiated by the proper documents which -
together with the declaration of conformity - are filed with the
manufacturer.
Abbreviations
• CH (boiler) flow = Central Heating flow
• CH return = Central Heating return
• DHW outlet = Domestic Hot Water warm outlet
• MCW inlet = Mains Cold Water inlet
• UBA 3 = Universal Burner Automat 3.
2
Servicing
▶ The boiler must be serviced regularly by a competent, qualified
person, such as a Worcester service engineer or other Gas Safe
registered engineer.
▶ Always use original spares, to help maintain the economy, safety and
reliability of the boiler and have the Service Record completed in the
Installation Checklist.
Symbol Unit
– –
– –
P kW
rated
η
%
s
– –
1)
P kW
4
2)
P kW
1
1)
η
%
4
2)
η
%
1
el kW
max
el kW
min
P kW
SB
P kW
stby
P kW
ign
NOx mg/kWh
L dB(A)
WA

General Information

Ensure that the service engineer completes the Service
Record after each service.
The Installation Checklist and service interval record can
be found at the rear of the Installation, Commissioning
and Servicing Instructions.
7736700642 7746900822
GB162-50 GB162-65
G20 G20
Yes Yes
47 61
93 92
A A
46.6 60.5
15.4 20.1
87.3 87.3
97.3 97.3
0.045 0.073
0.021 0.019
0.008 0.004
0.085 0.082
0.000 0.000
15 36
54 60
General Information
87470248 87470250
GB162-80 GB162-100
G20 G20
Yes Yes
82 95
– –
– –
82.0 94.5
26.6 31.6
88.2 88.4
97.3 98.3
0.100 0.145
0.024 0.027
0.008 0.008
0.082 0.082
0.000 0.000
42 49
– –
3