2
2.0 Burner Operating Parameters & Requirements
Performance Data
Note: Pressures listed below are for sizing purposes only and must NOT be
used for set-up. Use separate metering orifices for burner adjustment.
Gas Inlet Pressure
Burner
Tube
Flame
Nat. Gas
Propane
Size
I.D.
Max. Input
Length
0.6 s.g.
1.5 s.g.
124
6"
1,000,000 Btu/hr.
22 ft.
7.0" w.c.
6.0" w.c.
English
132
8"
1,750,000 Btu/hr.
23 ft.
7.0" w.c.
6.0" w.c.
Units
140
10"
2,750,000 Btu/hr.
29 ft.
10.0" w.c.
7.5" w.c.
148
12"
4,000,000 Btu/hr.
35 ft.
12.0" w.c.
8.0" w.c.
124
152 mm
293 kW
6.7 m
17.4 mbar
15 mbar
Metric
132
203 mm
513 kW
7.0 m
17.4 mbar
15 mbar
Units
140
254 mm
806 kW
8.9 m
24.9 mbar
18.7 mbar
148
305 mm
1172 kW
10.7 m
29.9 mbar
19.9 mbar
Firing Chamber Limits
Operates best with neutral pressure at exhaust end of immersion tube.
Ambient Temperature Limits
-40
°
to +104
°
F (-40
°
to +40
°
C)
3.0 Immersion Tube Design
Bends and Elbows
Immersion tubes may have standard, sweep or miter bends without affecting burner
operation. However, the first elbow must be a minimum of ten tube diameters from the
burner face. Figure 1 details the tube layout and a double mitered bend.
Tube Length
The tube must be long enough to permit complete combustion before fluing to the
stack. If less than maximum rated input is required for the process, maximum tube
length can be reduced in direct proportion to the input reduction from catalog rating.
Draft Hood
Do not seal the discharge of the immersion tube to a stack—use a draft breaking
hood, as detailed in Figure 2. Be sure that the manifold and stack are large enough for
the total flow of exhaust gases.
All draft hood and stack designs must conform to applicable codes.
4.0 Installation
Burner Inspection
Make a thorough inspection of the burner when uncrating and before installing it. If any
parts appear broken, bent, or damaged, contact your Eclipse representative or the
Eclipse factory before installing the burner.
Companion Flange
A companion flange must be welded to the immersion tube. This flange may be pur-
chased from Eclipse or supplied by others; see Figure 3.
Burner Mounting
The main burner casting has an integral mounting flange. With the supplied gasket be-
tween them, bolt the burner mounting flange to the companion flange for an airtight
seal, as shown in Figure 3.
(Section 4.0 is continued on page 4)
If improperly adjusted or operated, burners can produce toxic concentra-
tions of gases, including carbon monoxide.
Venting these gases into confined,
poorly ventilated areas is dangerous. To avoid this situation:
• Vent the appliance to the outdoors wherever feasible. Refer to the appliance
manufacturer’s instructions for flue and stack design guidelines.
• If outside venting is not possible, be certain that the building has enough vol-
ume and fresh air makeup to keep potentially harmful combustion products
within the safe levels defined by OSHA or other authorities having jurisdiction.
WARNING
