User Manual

SeleCtor aNd diSPlay ParameterS oN uei SmartBell
ZeRO”–Analyzerisperformingtheinitialzerosetting
CO2(CarbonDioxide)–Directreadingofthecarbondioxidesensordisplayedinpercentage
(%)
Eff(Efficiciency)–Calculatedcombustion(notappliance)efficiencybasedonmeasurements
ofCO2,FlueTemperatureandfuelselected.TheSmartBellcalculatesgrosscombustion
efficiency and automatically determines if the combustion is in the condensing mode to make
appropriate corrections.
X-Air (ExcessAir)–ExcessAiriscalculatedforeachfueltypefromtheCO2measure-
ment. It assumes that the combustion process is running fuel lean. It is important to
make other measurements to confirm that this assumption is always correct.
O2 (Oxygen)–O2iscalculatedforeachfueltypefromtheCO2measurement.It
assumes that the combustion process is running fuel lean. It is important to make other
measurements to confirm that this assumption is always correct.
TFlue (FlueTemperature)–TFlueisadirectmeasurementofthetemperatureatthetip
of the flue probe. This measurement is used to determine the net temperature for use in
calculation of combustion efficiency.
TNet (NetTemperature)–DifferentialtemperatureofTflueandambient(orinletif
set).
BAT symbol-DisplaystheBatterypoweravailable.
Fuels Available
GLOSSARY
12
Selector Position Display Type
L Oil LOIL Light Oil
Propane PrOP Propane
Nat Gas n6AS Natural Gas
H Oil HOIL Heavy Oil
Wood vOOd Wood