Frontier Oil Heat
– PN 10-2021 – October 2021
- 22 -
OIL BURNER OPERATION
NOTICE: For reliable operation, set Air-Fuel mixture conservatively based on installation conditions.
CO
2
/O
2
and draft readings should be taken through 1/4" test port in front jacket opening just to right of burner (see FIG. 6).
Sample tube must extend at least eight (8) inches into front cover to obtain accurate readings. Smoke test and stack
temperature should be taken at flue outlet. A test port is provided for the flue box (see FIG. 6) to measure draft loss and
smoke.
NOTICE:
For accurate efficiency calculations, measure flue gas temperature in flue pipe. Flue box and over fire
temperatures may be higher than flue gas temperature measured in the flue pipe.
Installation Conditions
Target
CO
2
Setting
Target
O
2
Setting
Normal Conditions
11%
6.5%
Active Area (Washer, Dryer, Shop)
10 ½%
6.8%
Outside Oil Tank
10%
7.1%
Note 1: For combinations of above, use lowest CO
2
level or highest O
2
level.
Note 2: When Air Box is used, CO
2
must be checked with
air box cover in place
.
*Burner operating range is from 10% to 14.5% CO2 with no or a minimal smoke
trace. Running with low levels of excess air may reduce combustion chamber and
burner head long term durability without noticeable benefits in annual efficiency.
AFTER 15 MINUTES RUNNING, CHECK AND RECORD:
1.
DRAFT AT OVER FIRE/CHIMNEY …………………………………. -0.02”w.c. Minimum
2.
DRAFT AT OVER FIRE/POWER VENT……………………………… -0.10" to –0.12” w.c.
3.
CO
2
/O
2
………………………………………………………………. See table above
4.
STACK TEMPERATURE
…………………………………………. 350
o
to 450
o
F
5.
SMOKE TEST …………………………………………………….. Verify 0 smoke at breech
Draft over fire with a chimney should be -
0.02” w.c. Minimum.
If not, recheck chimney, chimney base and flue pipe for blockage or clean out door openings.
Draft over fire with a power vent (sidewall vent) should be -0.10" to -0.12" w.c.
If not, adjust power vent damper, check power vent fan is turning, or vent blockage.
Draft Loss Definition:
The draft loss through boiler is found by subtracting the overfire draft reading from the breech
draft reading. For example, if the breech draft is -0.04" w.c., and overfire draft is +0.02" w.c., then subtracting the two
readings gives a draft loss of 0.06" w.c., which is acceptable. If the draft loss exceeds 0.10" w.c., then the boiler may
need to be cleaned or there may be some other blockage that will need to be addressed.
14
15
Figure. 6
