16
Figure 7
If burner characteristics do not match the above, check for proper air box pressure. Also look
for accumulation of lint and other foreign material at fan air inlets. Typical air box settings are as
follows (settings in brackets denotes condensing application):
AIR BOX “ W.C. (with burner firing)
FLUE SWITCH RECYCLE POINT “ W.C
MODEL
Left Burner
Right Burner
Left Burner
Right Burner
800
-
1.4 (1.7)
-
1.0 (1.4)
1000
-
1.9 (2.2)
-
1.5 (1.9)
1200
0.9 (1.1)
0.9 (1.1)
0.8 (0.9)
0.7 (0.9)
1400
0.9 (1.1)
1.4 (1.7)
0.7 (0.9)
1.1 (1.3)
1600
0.9 (1.1)
1.9 (2.2)
0.7 (0.9)
1.5 (1.8)
1800
1.6 (1.9)
1.6 (1.9)
1.2 (1.6)
1.2 (1.6)
2000
1.9 (2.2)
1.9 (2.2)
1.5 (1.9)
1.5 (1.9)
Depending on field conditions air box pressures will have to be adjusted accordingly. Always set
the appliance for a CO
2
level in the range of 7.5% to 8.5 %.
A qualified service technician should follow this procedure when burner needs cleaning.
1. Shut off power and close main manual gas valve.
•
Allow burner to cool before removal.
2. Remove access cover screws.
•
Disconnect pilot gas at bulkhead fitting.
•
Disconnect ground wire and ignition wire.
•
Remove two wing nuts holding down burner.
•
Gently pull down and forward to disengage burner.
•
Remove burner being careful to not damage the igniter or ground electrodes.
3. Thoroughly clean burner. Check all ports and air channels for blockage.
Summary of Contents for MICOFLAME 2 Series
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