Nu-Way XGN Series, Handbook

Page: 13 / 32

Page 13
XGN Handbook
Microprocessor Burner Control Unit (MBC)
Engineers who are not experienced with this unit
should read all the notes and procedures before
attempting to commission the burner.
The MBC System is attached to a display unit, as
shown on page 13. This unit is used to program
the MBC, and to retrieve information from it.
The system has many functions; several of them
need a pass-code before the user can obtain access
to them. Entering this code is described in the
following text.
When using the keys on the display unit, the best
results are achieved by using a slow deliberate
pressure of about ½ to 1 second in duration.
When the burner is first switched on , the MBC
performs a startup test and then displays
“OFFUPr”. This means that commissioning has not
been completed and the MBC only contains ini-
tial settings. A full commissioning procedure must
be competed.
Entering the pass code.
Press key numbers (1&2) together for a full
commissioning or keys (+&-) together for a part
commissioning.
The display will show seven short lines, the first
flashing and is ready to accept the code.
The default pass-code is 8904236.
To enter the first number (eight) press the plus (+)
key eight times, or the minus (-) key twice
(10-8=2).
Each press of either key, plus or minus (+/-) will
result in flashing line dropping down indicating that
the press has been recorded.
The MBC is controlled by means of 5 keys on the touch sensitive display. The individual
parameters are displayed on the liquid crystal display.
The individual display elements and control buttons are explained below.
Start-up
Lights up during
the run-up phase,
OFF during
operation.
On when
setup mode
is selected
1 2
+
P
S
G L/A
h
l,m
3
i
_
On when
information
mode is active
Acknowledge-
ment Key
Key 1
Actuation of gas
flow control flap
in conjunction
with +/- buttons
Key 2
Actuation of air
flow control flap
in conjunction
with +/- buttons
Key +/ Key -
In conjunction
with button 1 or 2
Lights up when the
gas flow control
flap is active
Symbols for
Open/Close flaps
Liquid-crystal
display
H = Operating hours indicator
I,m = Oil or gas consumption
3
Lights up when
service mode
is active
Fault
Flame established,
burner run
Lights up when the
air flow control
flap is active
M
ULTI
-
FUNCTIONAL
D
ISPLAY