Burner; General Requirements; Information On Burner Selection; Matched Pressure-Jet Burners - Bosch UT-L 1 Technical Manual

32 | Burner

4 Burner
4.1

General requirements

The UNIMAT UT-L boilers can be operated with any
tested pressure-jet oil or gas burner. The pressure-jet oil
burners must be type-tested in accordance with the
requirements of DIN-EN 267; the pressure-jet gas
burners in accordance with DIN-EN 676. Observe the
requirements for oil and gas combustion equipment, as
well as the applicable guidelines and regulations.
4.2

Information on burner selection

The burner must reliably overcome the pressure loss on
the hot gas side of the boiler ( page 25 ff.). With gas
combustion, ensure that the local gas network can
provide the required supply pressure for the burner.
The burner fixing equipment and door lining are
prepared for the relevant burner at the factory.
Fill the gap between the door lining and blast tube with
fireproof, flexible material.
The burner door must be able to be opened and pivoted
out unimpeded. In the case of oil combustion, size the oil
hoses and cables accordingly.
In the case of gas combustion, provide a gas line
compensator in the longitudinal direction of the boiler.
With this, the gas train can be separated at this point
when the door is opened, and the door can be pivoted
out together with the burner.
The burner head is equipped subject to the burner
manufacturer's stipulations. The blast tube should
protrude into the combustion chamber. Observe the
burner manufacturer's installation instructions.
4.3

Matched pressure-jet burners

Optimum combustion requires the boiler and burner to
be individually matched. Together with suitable burners,
the UNIMAT UT-L boilers are suitable for systems where
lower emissions are required.
You can use the product configurator to
select an optimum burner.
6 720 807 794 (2013/04) UNIMAT