Potterton Promax 24 Combi ErP, Инструкция по установке и обслуживанию

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10.0 Commissioning
© Baxi Heating UK Ltd 2016
Fig. 40
Fig. 41
Inlet Gas Pressure Test Point
DO NOT check
gas pressure here
1. It may be necessary to adjust the boiler gas type if the supply is changed, for example
when Natural Gas is provided to a rural area previously reliant on Propane. In these
instances a replacement Gas Type Label may be required, which is available on request
as a spare part.
2. Press & and hold for at least 6 seconds. will be displayed,
alternating with .
3. Press to select the next parameter . Press .
4. Press or to select the value that corresponds with the required
gas type. For Natural Gas:-
For Propane:-
5. Press to save the change, then to return to the normal display.
Changing the Gas Type
10.3 Check the Operational (Working) Gas Inlet
Pressure & Gas Rate
Note: 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 in order to
maintain the boiler at full rate.
1. Press & together and hold for at least 6
seconds.
‘ On ’
will be displayed briefly, followed by
‘ 304 ’
then
‘ 100 ’
when the boiler is lit, indicating the CH output is
at MAXIMUM (‘Chimney Sweep Function’).
2. With the boiler operating in the maximum rate condition
check that the operational (working) gas pressure at the inlet
gas pressure test point on the gas cock or valve is in
accordance with B.S. 6798 & B.S. 6891. This must be AT
LEAST 17mb ! (LPG - 37mb)
3. Ensure that this inlet pressure can be obtained with all other
gas appliances in the property working.
Measure the Gas Rate
4. With any other appliances & pilot lights turned OFF the gas
rate can be measured. It should be:-
Natural Gas 24 model 2.61
m
3
/h
28 model 3.05 m
3
/h
33 model 3.59
m
3
/h
40 model 4.35 m
3
/h
Propane 24 model 1.96 kg/h
28 model 2.29 kg/h
33 model 2.70 kg/h
40 model 3.27 kg/h
5. Press & together and hold for at least 6 seconds
to exit the function.
6. 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 publication
must be handed to the user for safe keeping and each
subsequent regular service visit recorded.
7. 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.
R
N.G. Factory
Set
When reset for L.P.G.
Gas Type Label
Gas Cock
Gas Valve
Gas Meter
19-23 mbar
17-21 mbar
18-22 mbar
Working Gas Pressures
If the pressure drops are
greater than shown a problem
with the pipework or
connections is indicated.
Permissible pressure drop
across this system 1 mbar.