Eclipse Combustion AIRHEAT AH-MA - Manual (Page 22)

Eclipse AH-MA Air Heat Burner v2, Design Guide 160, 8/1/05 22
Step 4: Flame monitoring
system
90° U.V. scanner
flame rod
A flame monitoring system consists of two main parts:
 a flame sensor
 a flame safeguard.
Flame Sensor
There are two types that you can use for an AH-MA v2.10 Air
Heat burner:
 U.V. scanner
 flame rod.
You can find information on U.V. scanners in:
 Instruction Manual No. 852; 90° U.V. scanner
 Instruction Manual No. 854; straight U.V. scanner
 Instruction Manual No. 855; solid state U.V./IR scanner
 Instruction Manual No. 856; self-check U.V. scanner.
You can find information on flame rods in:
 Bulletin/Info Guide No. 832.
Flame Monitoring Control
The Flame Monitoring Control processes the signal from the flame
rod or U.V. scanner and controls both the start-up sequence and
the main gas shut-off valve sequence..
For flame safeguard selection there are two options for staged
burners depending on the application requirements:
 flame safeguard for each burner: if one burner goes down, only
that burner will be shut off.
 multiple burner flame safeguard: if one burner goes down, all
burners will be shut off.
Eclipse Combustion recommends the use of flame monitoring
control systems which maintain a spark for the entire trial for
ignition time when using U.V. scanners. Some of these flame
monitoring models are:
 Veri-Flame series; see Bulletin/Instruction Manual No. 818
 Bi-Flame series; see Bulletin/Instruction Manual No. 826
 Multi-Flame series; see Bulletin/Instruction Manual No. 820.
Burners over 5 lineal feet include flame supervision at the far end.
If pilot ignition is being used, two flame supervision units are
required; one for the pilot and one for the far end. Per NFPA 86,
if using direct spark on the main flame, only flame supervision at
the far end is required providing ignition can be accomplished
within 15 seconds.