dunphy TD - Burner Overview, Parameters, and Fuels

Operating Instructions For TD/TAD4 Dual Fuel Burner
June 13 7 of 165 TD/TAD4 Manual Rev 4
During commissioning, all adjustments to the burner must be made in accordance with the boiler
manufacturer's instructions and these must include checking of flue gas temperature, average water
temperature and CO2 or CO concentration.
1 General Information
1.1 General
Burners must be checked at the time of delivery and any deficiencies or damage immediately
reported to the carrier or supplier. The company will make good any defects or replace missing
items strictly in accordance with their current conditions of supply.
The company has a policy of continuous development and therefore reserve the right to make
changes, without notice, in burner or other specifications.
Burners carrying the same model number may have major differences in their detailed
specification, such as draught tube lengths to suit the dimensions of a particular appliance, which
makes it impossible to give, in a single publication, precise information on the whole range of
applications. Data is readily available from the company and can be supplied on application.
Please give the burner serial number when requesting information.
All TD series burners are manufactured and tested to European Standards BS EN676: 2003 &
A2:2008 Automatic forced draught burners for gaseous fuels, Definitions, requirements, testing,
marking and EN 267 Forced draught oil burners – Definitions, requirements, testing, marking
If a burner is to be fitted to an existing boiler, maximum combustion efficiency can only be
achieved if all heat transfer surfaces are cleaned prior to the installation. Generally `TD` series
burners are not suitable for use in areas of high humidity or in explosive atmospheres, but special
units suitable for use in adverse situations can be manufactured to a customer's specific
requirements. Details of special units are available, on request, from the Dunphy sales department.
1.2 Working parameters
Temperature
0 to +50°C
Relative Humidity
60 - 90% non-condensing
Atmospheric Air Pressure – will generally be in the range of 950 to 1100mbar, but this will change
with altitude, if there are any queries please consult the Dunphy technical department.
1.3 Fuels
'TD / TAD' Series of burner must only be used with the fuels specified on the burner data plate and
in the case of gas, the pressure must not, under any circumstances, drop below the stated
minimum operating level.
The burner is also optimised for use with 35 sec diesel oil.
B100 Bio-diesel must not be used on a standard burner. When using B100, it must be specified at
time of order. Special pumps, valves and seals are used when burning B100.
It is essential that appliance and burner combinations are correctly matched.
If any doubt exists about the suitability of a particular combination the installer
must check with the manufacturers.