23
All your tests must be done with the burner cover on
COMBUSTION
After 10 minutes of normal operation,
take a smoke test
and adjust
SETTING/
the burner to obtain a reading of “1” on the smoke scale
.
EFFICIENCY
1. Take a CO2 test and note the result
18 full slow
steady pump action
2. Open the air band adjustment on the burner
to reduce your CO
2
reading by 1%
You now have a perfect “slight trace” of smoke.
Relation between % of CO
2
and O
2
CO
2
(%)
O
2
(%)
Excess Air (%)
13.5
2.6
15.0
13.0
3.3
20.0
12.5
4.0
25.0
12.0
4.6
30.0
11.5
5.3
35.0
11.0
6.0
40.0
To reach the maximum smoke test
value, a
10 full slow steady
pump
action is required.
CO
2
test can be done mechanically or electronically
Summary of Contents for Cast Iron Boiler Series
Page 26: ...26 10 3 HYDROSTAT 3250 CONTROL Setting the control...
Page 27: ...27...
Page 30: ...30 12 0 EXPLODED PARTS VIEW...
