Fyrite INSIGHT
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1. Gain access to the gas pump by removing the rear case. Refer to Sec-
tion 6.1.
2. Disconnect J9 (pump) and J11 (Battery) connectors.
3. Lift the circuit board out of the unit.
4. Remove the screw that secures the pump to the board in order to
separate the pump from the board.
5. Remove tubing from pump.
6. Install new pump by reversing this procedure.
6.6 Cleaning the Probe
The probe tube and gas-sample hose will become dirty under normal use.
Note that the water trap’s filter element should prevent soot from reaching
the analyzer’s internal components. If the probe is not kept clean, it could
become clogged and restrict the flow of gas into the analyzer, resulting in
incorrect combustion test readings and calculations.
NOTE:
An analyzer that is used to test natural gas furnaces
normally requires less frequent cleaning than an ana
-
lyzer used for testing coal or oil fired furnaces.
Equipment Required:
•
Alcohol
•
Aerosol can of automotive carburetor cleaner
•
Clean rag
•
Source of compressed air (optional)
Procedure:
1. Remove gas-sample hose from top of water trap.
CAUTION:
Carburetor cleaner attacks plastic compo
-
nents! Take precautions not to spray cleaner onto the
probe handle or analyzer.
2. Insert the plastic-spray tube of the carburetor cleaner into the gas-
sample hose, and then liberally spray carburetor cleaner through the
hose and out the probe tube.
3. After spraying, remove all the residual cleaner by repeatedly flush-
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