Unigas TLX512-FGR, Manual Of Installation - Use - Maintenance

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PART I: SPECIFICATIONS
12
Burner hot air with FGR before or after the economizer
C
3
4
2
9
7 5
A
B
8
6
6
1
1 2
1 2
3
2
9
1
5
7
8
B
A
6
> 200° C
< 200° C
4
9
B
9
B
1 boiler
2 burner
3 fan ventilator
4 cold combustion air regulation damper
5 differential pressure switch
6 condensate drain
7 FGR regulation damper
8 FGR temperature probe
9 economizer
A: Flue gas recirculation
B: Ambient air
C: Hot air
Fig. 1 - Boiler flue gas output temperature superior 200° C
Fig. 2 - Boiler flue gas outlet temperature inferior 200 ° C