Step 3: Set Low Fire Air; Step 4: Verify The Air Settings; Step 5: Ignite The Burners - Eclipse TFB030 Installation Manual

■ Make sure that all the pressure taps are closed.
■ Verify the required input levels. Firing at higher
levels will reduce tube life or even destroy tubes.
The following steps apply to a preheated air system
with recuperator, and with no orifice plates
installed:
1. Make sure the system is at high fire,
2. Set high fire.
Use ambient Static Pressure at the air inlet curve,
found in the data sheet, for your particular burner to find
the static air pressure that you need at high fire. This is
now your target value for high fire.
a. Make sure that pressure tap A of the first burner is
open.
b. Adjust the zone air manual butterfly valve until the
high fire air pressure is at the target value.
c. Measure and note the static air pressure for all
other burners in the zone.
d. If all the measured differential pressures are within
0.3" w.c. of each other, then proceed to the next
section. If the variation is greater than 0.3" w.c.,
then it will be necessary to adjust the manual air
butterfly valve at each burner to improve the
balance.
■ Make sure that all the pressure taps are closed.

Step 3: Set Low Fire Air

The following steps apply to an ambient air system
with orifice plates installed:
1. Set the system to low fire.
2. Choose one burner in the zone. Connect the
manometer to tap A and tap B of the burner (across
the air orifice).
3. Adjust the automatic zone air control valve until the
low fire air pressure differential is 0.2" w.c. This is your
initial setting only. Further adjustment may be
required.
4. Repeat step 2 and 3 for the other zones (if any).
The following steps apply to a preheated air system
with recuperator, and with no orifice plates installed:
1. Set the system to low fire.
Eclipse TFB, V2, Installation Guide 310, 11/14/2014
CAUTION
CAUTION
2. Choose one burner in the zone. Connect the
manometer to tap A.
3. Adjust the automatic zone air control valve until the
low fire static air pressure is:
• 0.05" w.c. for the TFB030
• 0.2" w.c. for the TFB075 and TFB200
4. This is your initial setting only. Further adjustment
may be required.
5. Repeat steps 2 and 3 for the other zones (if any).

Step 4: Verify the Air Settings

Make sure that all the settings are still the same after
cycling the system several times between high fire and
low fire.

Step 5: Ignite the Burners

Manual Ignition Steps:
Figure 4.3. Manual Gas Butterfly 50% Open
1. Drive the zone air automatic control valve to low fire.
2. Make sure the combustion blower is running.
3. Set the manual gas butterfly valve at each burner to
50% open.
Figure 4.4. Adjusting Set Screw
4. Set the adjusting screw (1) on the ratio regulator 6 full
rotations of 360° down from the top (initial setting).
Outer
Dial
Set
Screw
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