Eclipse Linnox Model CCS-LS, Installation Guide 159, 12/18/03
12
DIAGRAM ( PID )
After the flame detection device is satisfied that a stable flame
has been established, the burner programmer releases the burner
for control by the temperature controller (supplied by others).
The air control motor will be positioned to satisfy the set point
of the temperature controlling instrument. The air valve opens
which results in an increased air pressure at the burner. The gas
ratio-controller supplies a gas flow corresponding to the amount
of combustion air.
The high fire gas flow is limited by an adjusting valve, that has to
be adjusted for the specified gas type at the location of
operation.
1.
Burner
2.
Gas / air mixer
3.
Blower
4.
Control motor
5.
Gas ratio regulator
6.
Shut-off valve
7.
Adjustment valve max. capacity
8.
Manual isolating ball valve
9.
Igniter
10. Flame supervision
11. Adjustment valve, by-pass gas
12. Purge air pressure regulator
13. By-pass gas shut-off valve
14. Pressure switch, air
15. Pressure switch, gas
Pg. Gas pressure at mixer inlet
Pa. Air pressure at mixture inlet
Pm. Mixture pressure
Pp. Process pressure
Pgv. Gas pressure at valve train inlet