22
SETPOINT
Indicates the required pressure or temperature of the boiler, according to
the zero and span values entered as option parameters. If a tracking
modulation input is selected, this display parameter shows percentage
rate.
EFFICIENCY
Indicates the calculated percentage net or gross efficiency of the boiler,
according to option parameter 36.0. This display parameter may not be
available, depending on option parameter and hardware set-up.
FLUE TEMP
Indicates the measured flue temperature in degrees Celsius or Fahrenheit
(depending on option parameter set-up).
If the wiring to the flue temperature thermocouple is incorrect or the
thermocouple is faulty, the display will flash "Hi" or “Lo”. This display
parameter may not be available, depending on option parameter and
hardware set-up.
This display flashes if the high or low flue temperature limits are
transgressed (option parameter 37.X & 38.X).
INLET TEMP
Indicates the measured inlet air temperature in degrees Celsius or
Fahrenheit (depending on option parameter set-up). If the wiring to
the inlet temperature sensor is incorrect or the sensor is faulty, the display
will flash "Hi" or ‘Lo’. This display parameter may not be available,
depending on option parameter and hardware set-up.
FAULT NUMBER
If no faults are present, this display parameter will not be available. If the
unit detects an internal or external fault, this display will indicate the
number of that fault.
O
2
LEVEL
Indicates the measured flue oxygen level in terms of percentage
concentration. If the wiring or oxygen probe is faulty, or if the probe has
not reached it’s operating temperature yet, this display will show ‘---‘.
This display parameter may not be available, depending on option
parameter and hardware set-up.
This display flashes if the high or low flue oxygen limits are transgressed.
CO
2
LEVEL
Indicates the calculated CO
2
level in flue. This display parameter may
not be available, depending on option parameter set-up, hardware set-up
and oxygen display. This display shows ‘---‘ when the burner is not firing,
or the oxygen value is showing ‘---‘.
SMOKE LEVEL
Indicates the measured flue gas level. These option parameters may not
SOx LEVEL
be available, depending on option parameter and hardware set-up.
CO LEVEL
NOx LEVEL
“Hi” or “Lo” is shown if outside range 3.5 to 21mA. Values flash if limits
are exceeded.
HOURS RUN
Displays the hours run for the current fuel combination. If no profile is
selected, the display will show "---".
Pn
This display parameter is used in commission ratio.
An
This display is used in adjust ratio mode.
They indicate the profile setpoint currently under adjustment or being dis
played. If the display is flashing, the unit is waiting for an event to occur
before the point may be altered. When the display stops flashing, the
point may be altered. PROFILE SET is not available in run mode.
MODULATION
This is the percentage modulation rate based on the position of the lead
drive, where 0% is low fire and 1000% is high fire.
FUEL
Displays the fuel combination currently selected, where the 100's digit is
fuel 1, the 10's digit is fuel 2 and the 1's digit is fuel 3.
e.g. 100 represents fuel 1, 101 represents fuels 1 + 3 and 010 represents
fuel 2.
