TEST PROCEDURE
Step 1.
Set the thermostat high enough so that the unit will run
for at least 15 minutes, the maximum time that should
be required for the test. Let the unit operate enough
for the stack temperature to stabilize.
Step 2.
For your initial set of readings, set the draft regulator
so that there is -.03 Water Column Draft in the smoke
pipe between the flue outlet and draft regulator.
A manometer must be used to properly set the draft to
-.03” WC.
Step 3.
Insert the sampling tube of the CO
2
tester in the hole
that you have drilled adjacent to the stack
thermometer and find the percentage of CO
2
in the
sample of the products of combustion. Follow the
instructions of the manufacturer of the instrument you
are using.
Step 4.
Use efficiency finder chart or stack loss slide rule to
determine efficiency. Be sure to subtract room
temperature from stack thermometer reading and use
this net stack temperature for determining the
efficiency.
Step 5.
Insert end of smoke tester into same hole as was
used to test for CO
2
and perform the smoke test.
Step 6.
The filter paper from the smoke test, when compared
to the standard, must be determined and be found to
be satisfactory. It should never be greater than #2,
preferably #1 or zero, depending on local
requirements or your own service standard.
Repeat steps 3, 4, and 5 as needed, adjusting the air
shutter on the burner and draft regulator until you
obtain the highest possible efficiency. It is desirable to
have a high CO
2
reading and low stack temperature
with a minimum smoke reading.
FIG. 29
Questions? Visit www.yukon-eagle.com or call 1-800-358-0060
38
Installation
Содержание LWO-112
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