Combustion Settings; Adjusting The Burner Settings; Converting To Another Gas Type - Winterwarm DXE80 Installation Manual

8. Combustion settings

In principle, it is not necessary to adjust the control shortly
after commissioning the air heater. When the control does
have to be adjusted after a period of use or after installing
a new heater, this must be done by a qualified person
using calibrated equipment.
DANGER! A poor adjustment can lead to overheating of
the air heater and/or production of toxic carbon monoxide.

8.1. Adjusting the burner settings

The flow of gas to the burner is controlled with a gas valve.
The valve must be set to a high and a low burner pressure.
To adjust the burner pressures, do the following:
1. Look up the correct burner pressures (see §3.2.).
2. Remove the cover from the gas valve. Use a (small)
screwdriver.
3. Switch on the air heater on high fire (see §6.1.).
4. Set the high burner pressure by turning the outside
of the adjuster screw. Use a 10 mm wrench.
5. Set the air heater to low fire.
6. Set the low burner pressure by turning the inside of
the adjuster screw. Use a screwdriver.
NOTICE Do not set the burner pressure lower than 3
mbar. This avoids problems with cross-lightning of the
burner.
NOTICE Because the high and low burner pressures
influence each other, always check both burner pressures
at least twice after any adjustment.
Low setting
Inlet
Burner
Figure 12 - Main parts of the gas valve
DANGER! Always measure the air heater's CO
production. Too much CO usually means the gas mixture
is too rich. Adjust this if necessary with the two adjusters
(figure 12).
INSTALLATION MANUAL AIR HEATER TYPE DXE

8.2. Converting to another gas type

CAUTION!
recommends that the air heater is converted to another
gas type only by the manufacturer, its representative or
a qualified service technician. Contact your supplier for
more information.
To convert the air heater to another gas type, the gas
injectors on the burner unit have to be changed. A
conversion kit is available for this:
1. Switch off the air heater.
2. Shut off the gas and electricity.
3. Disconnect the ignition and ionisation cables from
4. Disconnect the burner manifold from the gas valve.
5. Unscrew the screws that attach the burner mani-
6. Remove the burner manifold.
High setting
High/Low
7. Remove the gas injectors from the burner tube.
8. Select the correct injectors (see §12.).
For safety reasons, the manufacturer
the burner unit.
This is a clamp coupling.
fold to both ends of the endplates of the burner
unit.
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