Eclipse Furnnox 210 Series Installation Manual page 12

Combustion
Air Control
Valve
Combustion
Main gas
shut-off
valve train
Step 3: Set Low Fire Air
1. Set the system to low fire.
2. Connect the manometer to tap A (air inlet pressure
tap).
3. Adjust the automatic zone air control valve until the low
fire static air pressure is 0.2" w.c. This is the initial
setting only. Further adjustment may be required.
4. Repeat 2 and 3 for the other zones (if any).
Step 4: Verify the Air Settings
Make sure all the settings are still the same after you cycle
the system several times between high and low fire.
Step 5: Ignite the Burners
■ This procedure assumes that a flame monitoring
control system is installed and is serviceable. It
also assumes that normal low fire start is being
used. If low fire gas is too low to be used for
ignition, refer to options in "Set the Bypass Pilot
Gas (Optional)" on page 13.
1. Drive the zone air automatic control valve to low fire.
2. Make sure the combustion air blower is running.
3. Set the manual gas butterfly valve at each burner to
50% open.
12
Eductor Flow
Control Valve
Manual
Air Control
Valve
Ratio
Regulator
Figure 4.2. Burner System
WARNING
Heat
Exchanger/
Eductor
Automatic
shut-off by
zone or by burner
NC
to other Burners
Figure 4.3. Adjusting Ratio Regulator Screw
4. Adjust the ratio regulator as required for low fire.
5. Open manual gas cock at each burner.
6. Initiate the ignition sequence through the flame
monitoring control system.
7. Check that all the burners in the zone have ignited. If all
the burners have ignited, drive the combustion air
butterfly valve to high fire. Verify flame is present at
each burner. If burners do not light, increase the gas
flow by adjusting the ratio regulator, repeat step 6.
8. Recheck the high fire air settings.
NOTE: As application temperature increases, pressure
will change. Depending on control method, readjustment
of the manual combustion air butterfly valve may be
necessary.
Eclipse Furnnox Burner, V1, Installation Guide 210, 2/14/2011
to other Burners
NC