Camus Hydronics MFH060 Installation, Operation And Service Manual page 47

MODEL
060
100
150
200
250
300
400
500
600
Depending on field conditions air box pressures will have to be adjusted accordingly.
Always set the appliance for a CO
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.
4. Reinstall the burner being careful to fully engage the back of the burner box into the retaining slot
in the combustion chamber base. Failure to properly locate the burner will result in erratic flame
operation with the possibility of delayed ignition on light off.
5. Restore electrical power and gas supply to the boiler.
•
Following the lighting instructions put the boiler back into operation
•
Check for gas leaks and proper boiler and vent operation.
Table 9: Air Box Settings
AIR BOX " W.C.
(with burner firing)
0.20
0.25
0.30
0.35
0.38
0.40
0.80
0.90
1.00
level in the range listed in Table 10.
2
Table 10: Combustion Values
Max.
Non-
Fire
Condensing
Min.
Fire
Max.
Fire
Condensing
Min.
Fire
FLUE SWITCH RECYCLE POINT
Natural Gas
CO CO CO
2
7.5% - < 50 9.0% -
8.5% PPM 10.0%
7.0% - < 50 8.5% -
7.5% PPM 9.0%
8.5% - < 50 10.0% -
9.0% PPM 10.5%
7.5% - < 50 9.0% -
8.0% PPM 9.5%
43
" W.C
0.15
0.20
0.25
0.30
0.33
0.35
0.70
0.80
0.90
Propane
CO
2
< 50
PPM
< 50
PPM
< 50
PPM
< 50
PPM