Page 16
Initial Installation Procedure
printed: 06/2020 Subject to change!
:FFUserManual.docx
4.4.2 Control of nominal heat load
Firstly, please check whether the unit is adjusted for the existing kind of gas. For this you have to
check whether the indication on the type plate corresponds to the existing kind of gas. If you adjust
the unit for other gas types please check the indication of the nozzles. The nominal heat load re-
sults from using the right nozzle with connection pressure of
+ 20 mbar with natural gas H and natural gas L (for France E+)
+ 50 mbar with LPG
by taking effect of the corresponding nozzle area.
The permission of operation with the resulting nominal heat load under dependency of the planned
nozzles results from the following connection pressure bounds:
15 to 25 mbar with natural gases)
25 to 35 mbar and 42.5 to 57.5 mbar with LPG
Starting the operation outside these pressure bounds is not permitted.
The connection pressure is measured by a pressure gauge (indication exactness: 0.1 mbar). For
this the sealing screw in the connection pressure measuring socket of the main gas supply has to
be loosened and the pressure gauge has to be connected.
4.4.3 Checking of nominal heat load with LPG
Check whether the indication of used nozzles corresponds to the indications of the manufacturer.
Secure that the existing low-pressure regulator on site does not exceed a maximum output pres-
sure of 50 mbar according to section 4.4.2 (control of type plate or pressure measurement).
4.4.4 Control of function
•
Set the unit into operation according to the manual.
•
Check the unit for gas leaks.
•
Check the correct adjustment of primary air and nozzles (pilot flame device, main nozzles (at
the burner nozzle assembly), minimum adjustment nozzles (at the all gas valve).
•
Check the transmission ignition and regularly flames of the burners with minimum and maximum
adjustment.
•
A maintenance contract is recommended.
4.5 Re-adjustment
Attention!
Before any re-adjustment works at the unit are executed the main gas supply
has to be closed and the unit has to be unplugged firstly.
All units of our production are single examined and are adjusted for the kind of gas required by the
customer. If no indication has been made, the units are principally adjusted for LPG. If the unit is to
be re-adjusted it has to be observed that this is made by an approved technician or by the Ubert
service technicians. The corresponding nozzles sizes are to be find in the nozzle table. For re-ad-
justment the following measures have to be made:
•
Replacement of pilot flame nozzles.
•
Replacement of main nozzles.
•
Replacement of bypass nozzle
•
Adjustment of primary air.
•
Checking of function and indication of new gas type on the type plate at the front of the unit.
4.5.1 Replacement of pilot flame nozzle (pilot flame device)
•
Close the main gas supply and unplug the unit.
•
Remove the side walls after unscrewing them.
•
Remove the ignition cable from the ignition plug at the pilot flame.
•
Unscrew the ignition plug from the pilot flame device.
•
Unscrew the gas supply connected to the pilot flame device.
•
Remove the thermo feeler.
Summary of Contents for FF Series
Page 1: ...User Manual Wall of Flame FF Series...
Page 2: ......
