PCA
3 Manual
0024-9473 Rev 3
47
90% Efficiency
Condensing Furnace
80% Efficiency Fan
Assist or Power Vented
Furnace
Atmospheric/Gravity
Vented Boiler
Figure 5-5. 90%
Efficiency Condensing
Furnace
Figure 5-6. 80%
Efficiency Fan Assist or
Power Vented Furnace
Figure 5-7.
Atmospheric/Gravity
Vented Boiler
Condensing
furnaces/boilers can be
tested through a hole
drilled in the plastic vent
pipe (when allowed by the
manufacturer or local
authority of jurisdiction) or
taken from the exhaust
termination.
Combustion testing of fan
assist or power vented,
furnaces/boilers should be
done through a hole drilled
in the vent immediately
above the inducer fan.
Boilers, which have a “bell’
shaped draft diverter on
top, should be tested
directly below the diverter
through a hole drilled in the
vent connector.
5.5. Performing a Combustion Test
Ensure that the following items have been completed.
•
Turn ON analyzer and allow it to warm up (see page 45)
•
Select fuel being burned (see page 24)
•
Inset probe into stack (see page 46)
•
If necessary, insert the optional primary air thermocouple into the
combustion air stream of the burners that use an outside source of
combustion air.
Next, proceed with the combustion test as described below.
Summary of Contents for PCA3
Page 23: ...PCA 3 Manual 0024 9473 Rev 3 23 Figure 3 2 Connecting the Probe to the Analyzer...
Page 64: ...PCA 3 Manual 64 0024 9473 Rev 3 Figure 5 23 Printer Alignment and Sample Printout...
Page 84: ...PCA 3 Manual 84 0024 9473 Rev 3 Figure 7 2 Inside View with Rear Case Removed...
Page 86: ...PCA 3 Manual 86 0024 9473 Rev 3 Figure 7 5 Wire Routing Connectors and Solder Connections...
Page 101: ...PCA 3 Manual 0024 9473 Rev 3 101...
Page 102: ...PCA 3 Manual 102 0024 9473 Rev 3...
Page 103: ...PCA 3 Manual 0024 9473 Rev 3 103...
