MFC Series Boilers User Manual
CHAPTER 9 – MFC 4000/6000 GAS ONLY BURNER
P
OMM-0104_94
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
93
of
170
GF-146
Ph.: 800-526-0288
12/29/2015
SECTION 9:
MFC 4000-6000 Gas Only Burner
9.1 Combustion Head Adjustment
WARNING!
Before starting the burner, ensure that the tank return line is not clogged.
The setting of the combustion head depends on the maximum output of the burner.
Adjusting the Combustion Head
1.
Outside Air Adjustment:
Turn screw (4) in Figure 9-1 until the notch identified is aligned
with the front surface (5) of the connector. In order to facilitate adjustment, loosen screw (6)
in Figure 9-1, adjust, and then tighten.
2.
Central Air Adjustment:
Loosen the 3 screws (1) in Figure 9-1 and turn ring (2) until the
notch identified is aligned with index (3).
3. Tighten the 3 screws (1) fully down.
4. In the diagram in Figure 9-2 find the notch at which to adjust both air and central gas/air.
Figure 9-1: Adjusting the Combustion Head
EXAMPLE:
Maximum burner output = 5681 MBtu/hr.
Consult the diagram in Figure 9-2 to see that for this output the adjustments are:
•
Outside Air: R1 = notch 8.6.
•
Central Air: R2 = notch 0.
