Proper Burner Flame - COZY BBT53 Installation And Operating Instructions Manual

PROPER BURNER FLAME

The burner flame may be observed through the sight glass
located in the burner box cover. See Figure 11. A proper
flame will have a dark blue inner mantle, with a lighter blue
outer mantle that extends from the burner into the heat
exchanger tube, (see Figure 12). There is no primary air
adjustment on the burner, and proper flame is assured since
the correct manifold pressure and orificing has been done
at the factory for elevations up to 2,000 feet.
TO REMOVE MAIN BURNER FOR
INSPECTION AND CLEANING
a. Turn off all electrical supply to heater.
b. Turn off gas supply.
c. Remove cabinet cover.
d. Remove burner box cover. See Figure 13.
e. Remove two (2) screws holding burner to burner
bracket. See Figure 13.
f. Burner can now be slid forward off orifice, lift
up, slide back and out of burner box.
g. Clean or replace as needed.
h. Reinstall by reversing Steps "f" through "a".
BURNER ORIFICE
This heater is orificed at the factory for elevations up to
2,000 ft. If installed above 2,000 ft., the BTU input must
be reduced 4% per 1,000 ft. See the following orifice chart
for the proper orifice for a specific elevation.
SPECIFIC ELEVATIONS
MODEL 0 to
NO. 2,000'
NATURAL GAS
BBT53 5 6
BBT103 1.45mm 5 4
BBT54 7 0
BBT104 6 4
ORDER KIT #49800 44-1 HIGH ALTITUDE KIT FOR NAT. OR L.P.
GAS.
2,000' 4,000' 6,000'
4,000' 6,000' 8,000'
5 7 5 7 5 9
5 4 5 5
L.P. GAS
7 1 7 1 7 2
6 5 6 5 6 6
SIGHT
GLASS
COMBUSTION
TUBE
BURNER FLAME
8,000' -
10,000'
6 0
5 5
7 3
6 8
Page 13
BURNER BOX
COVER
FIGURE 11
FIGURE 12
Burner Box
Burner Orifice
Burner
Burner Access
Burner
Bracket
Sight Glass
Gasket
FIGURE 13
BURNER
Plate
Sight
Glass