Sheet 4343-3
Page 3
TYPICAL UV SCANNER ASSEMBLIES FOR MAIN FLAME
PILOT ASSEMBLY / FLAME ROD ASSEMBLY
Assembly
UV
UV Scanner
Scanner
1 NPT x
¾
NPT
Number
Scanner Part
Number Adapter
Adapter
4-47709-1
Honeywell
C7061
R-130-5251
8835-R
4-8035-3
4020-3A-CB pilot for burner sizes -7A thru -8B
4020-3-CB pilot for burner sizes -9 thru -12B
4020-4-CB pilot for burner size -14
Flame rod assembly 4-25432-1
Gasket 4-17477-3
Add anti-seize and lubrication compound
to threads on pilot at installation
(such as "Never-Seez" P.N. R790-1007)
Pilot adapter 4-42625-1 for burner sizes -7A thru -12B
Pilot adapter 4-49059-1 for burner size -14
(included with TwinBed II burner head
End User
UV
UV Scanner
Main Flame
Pilot
Scanner
Location
Scanner
Part Number
Sensor Module
Flame
Adapter
United States
Fireye UV7A4
R130-UV7A4
EMX-MBPF100S
EMX-MBPF100S
8836-R
Europe
Fireye
UV1AL
R130-UV1AL-6 R130-MBCE-110/230UV R130-MBCE-100/230FR 8836-R
COMPONENTS REQUIRED FOR MAIN FLAME SELF-CHECKING UV SCANNER
TB-II Size
-7A thru -8B -9 thru -14
Flow (scfh)
700
1000
Pressure (P) "wc
1"
1"
Measure P at item
#7
#7
Air Supply to Pilot/Cooling Air Regulator
The 7349A-3-A regulator requires 20.5"w.c. inlet pressure and the
7349A-4-A regulator requires 18.0"w.c. inlet pressure. The maximum
pressure drops that make up total air required are listed in the table.
Cooling Air Flow and Pressure Drop Across Fuel Tube
Adjustments should be made in stop cycle mode so that backpressure is
constant. Adjust #6 cooling air butterfl y valve.
TB-II Size
-7A thru -8B
-9 thru -12-B
Regulator size
7349A-3-A
7349A-4-A
Reg. Capacity Drop
5"
2.6"
TB-II Backpressure
11"
11"
Pilot Pressure
4.3"
4.3"
Control Valve Press. Drop
2.7"
2.7"
Total Air Pressure Reqd.
23"w.c.
20.6"w.c.
See the 8832 Bulletin for 8836-R details
