Configuring The System; Check The Operational (Working Gas Inlet Pressure & Gas Rate); Final Instructions; Handover - Baxi EcoBlue Advance Combi 28 Installation And Service Manual

7 Commissioning
Control Box removed
for clarity
Gas Cock Inlet
Pressure Test Point
Working Gas Pressures
If the pressure drops are greater than shown in
Fig. 41a (above) a problem with the pipework or
connections is indicated.
46 EcoBlue Advance Combi
Fig. 41
Gas Valve
17-21 mbar
Gas Cock
18-22 mbar
19-23 mbar
Gas Meter
Fig. 41a
7.5

Configuring the System

7.5.1 Check the Operational (Working Gas Inlet
Pressure & Gas Rate)
The system MUST be cold to ensure the boiler is
operating under full demand. To obtain an accurate
measurement on smaller capacity systems it may be
necessary to open one or more hot taps and remove
the diverter valve motor (see Section 10.3.20) in order
to maintain the boiler output.
1. Press & together and hold for at least 6 seconds.
is displayed briefly followed by
alternately. '3' represents MAXIMUM HEATING input.
2. Press or to adjust the input.
MAXIMUM DHW input.
3. With the boiler operating in the maximum rate condition
check that the operational (working) gas pressure at the inlet
gas pressure test point is in accordance with B.S. 6798 & B.S.
6891. This must be AT LEAST 17mb !
4. Ensure that this inlet pressure can be obtained with all other
gas appliances in the property working. The pressure should be
measured at the test point on the gas cock (Fig. 41).
Measure the Gas Rate
5. With any other appliances & pilot lights turned OFF the gas
rate can be measured. It should be:-
Natural Gas 24 model
28 model
33 model
40 model
6. Press & together and hold for at least 6 seconds
to exit the function.
7.6

Final Instructions

7.6.1

Handover

1. Carefully read and complete all sections of the Benchmark
Commissioning Checklist at the rear of this publication that are
relevant to the boiler and installation. These details will be
required in the event of any warranty work.
The warranty will be invalidated if the Benchmark
section is incomplete.
2. The publication must be handed to the user for safe keeping
and each subsequent regular service visit recorded.
3. Hand over the User's Operating, Installation and Servicing
Instructions, giving advice on the necessity of regular servicing.
4 . For IE, it is necessary to complete a "Declaration of
Conformity" to indicate compliance with I.S. 813. An example of
this is given in I.S. 813 "Domestic Gas Installations". This is in
addition to the Benchmark Commissioning Checklist.
& flashing
represents
3
2.61 m /h
3
3.05 m /h
3
3.59 m /h
3
4.35 m /h
Comp No. 7212138 - 02 (06/14)