Dunkirk 95M-200 Control Manual And Troubleshooting Manual page 11

Pressure Guidelines
Fan Speed
Fuel
Gas Line Inlet
Pressure
Differential Pres-
sure
Note: Differential pressure values listed for comparison only. These values will change with vent length
and altitude of installation.
Combustion Guidelines
Outside
Temperature
70°F and up
21°C and up
30°F to 70°F
-1°C to 21°C
30°F and below
-1°C and below
* Percent CO values may exceed those listed and percent O
2
to achieve nominal input rate of boiler.
Flame Signal Guidelines
Fan Speed
Flame Signal
6 - CHECKOUT PROCEDURES AND ADJUSTMENTS
Minimum RPM
Natural Gas
N/A
0.3" WC
Natural Gas
*%CO *%O
2 2
9.6% to 3.9% to
10% 3.2%
9.3% to 4.4% to
9.6% 3.9%
9.0% to 5.0% to
9.3% 4.4%
Minimum RPM
Greater than 3.0 VDC
LP
N/A
CO *%CO2
Less than 11.1% to
80 PPM 11.5%
Less than 10.8% to
80 PPM 11.1%
Less than 10.5% to
80 PPM 10.8%
values may be less than those listed in order
2
Greater than 3.0 VDC
11
Maximum RPM
Natural Gas
At least 4" WC
2.0" WC
LP Gas
*%O
2
4.1% to
3.4%
4.5% to
4.1%
4.9% to
4.5%
Maximum RPM
LP
At least 10" WC
CO
Less than
80 PPM
Less than
80 PPM
Less than
80 PPM