Instruction 0024-9395
19
Fyrite Pro
4.2 Performing a Combustion Test using
the Model 110/120/125
4.2.1 Analyzer Turn On and Warm Up
Important:
The probe must be at room temperature before
performing the following steps.
1. Connect the probe and make sure that the analyzer is properly set
up per Sec tion 3.0.
2. Perform one of the following:
•
Model 110/120
– Before turning ON the analyzer, its probe must
be located in the area containing the burner’s combustion-air sup-
ply. If the burner is using room air, simply place the probe within
the room. In the case of a high-efficiency furnace where combus-
tion air is drawn in from an outside source, insert the probe into
the combustion-air stream so it can measure its temperature with
the burner op er at ing.
•
Model 125
– This analyzer has a second thermocouple channel
that can be used to independently monitor the temperature of the
burner’s combustion-air supply. When using this second thermo-
couple channel, insert the thermocouple into the burner’s combus-
tion-air stream, and position the probe to measure the ambient
room temperature. If the second thermocouple channel is
not
used
, then use the probe’s thermocouple to measure the combus-
tion-air temperature as described above for the Model 110/120.
3. Turn ON the analyzer and allow it to warm-up per Section 4.1.1.
4.2.2 Selecting a Fuel
1. With Fuel Screen displayed, use the
▲
or
▼
button to step through
the fuels codes until the proper fuel is selected. The analyzer de-
faults to the most re cent ly se lect ed fuel.
F1 = Natural Gas
F2 = Oil #2
F3 = LPG
F4 = Kerosene
2. Press the
ENTER
button to select the displayed fuel code and enter
the Run Mode.
