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tamz
Take your pick from your favourite boiler mi's.
Worcester
NOTICE: The combustion settings on this
gas-fired boiler have been checked, adjusted
and preset at the factory for operation on
the gas type defined on the data plate.
No measurement of the combustion values is
necessary provided there is a meter installed
allowing the gas rate to be checked.
DO NOT ADJUST THE AIR/GAS RATIO VALVE.
Vaillant
The boiler is supplied ready adjusted and no further gas
adjustments are necessary, however both the gas inlet
working pressures and maximum gas rates should be
checked as detailed in 5.9.2 and 5.9.3.
Ideal
General
Please Note: The combustion for this appliance has
been checked, adjusted and preset at the factory for
operation on the gas type defined on the appliance
data plate. No measurement of the combustion is
necessary. Do not adjust the air/gas ratio valve
etc etc.
Viessmann do ask you to check it tho.
If you read the benchmark it says, where required by the manufacturer, record the following......Some do but most don't.
What is the point of doing it indeed for new install work. Probably 75% of boilers are installed by guys with no access to a fga and who have no need to have one and the next time they see one will be in a classroom in a few years time.
Worcester
NOTICE: The combustion settings on this
gas-fired boiler have been checked, adjusted
and preset at the factory for operation on
the gas type defined on the data plate.
No measurement of the combustion values is
necessary provided there is a meter installed
allowing the gas rate to be checked.
DO NOT ADJUST THE AIR/GAS RATIO VALVE.
Vaillant
The boiler is supplied ready adjusted and no further gas
adjustments are necessary, however both the gas inlet
working pressures and maximum gas rates should be
checked as detailed in 5.9.2 and 5.9.3.
Ideal
General
Please Note: The combustion for this appliance has
been checked, adjusted and preset at the factory for
operation on the gas type defined on the appliance
data plate. No measurement of the combustion is
necessary. Do not adjust the air/gas ratio valve
etc etc.
Viessmann do ask you to check it tho.
If you read the benchmark it says, where required by the manufacturer, record the following......Some do but most don't.
What is the point of doing it indeed for new install work. Probably 75% of boilers are installed by guys with no access to a fga and who have no need to have one and the next time they see one will be in a classroom in a few years time.
