Oilon GKP-50 MH, Руководство по эксплуатации и обслуживанию

Страница: 37 / 100

4.5 Adjusting combustion air
Adjustment ring positioning
Adjustment ring position has an effect on pressure in combustion head. Adjust
pressure by moving adjustment ring back and fort, thus altering the gap between
adjustment ring and diffuser plate. For low capacity, adjustment ring is positioned to the
front, and for high capacity to the rear.
If... Then... And...
adjustment ring is not positioned
rear enough with a full capacity
there is too much pressure drop in
combustion head
ignition is poor OR
burning improper due to
inadequate amount of air (high
CO-content) OR
flame tear-off from diffuser disc
when switching to higher capacity
adjustment ring is too rear with low
capacity
there is not enough pressure drop deficient combustion (O₂ values
too high)
Control and adjust combustion head pressure drop at the minimum to:
● 2 mbar / 0.80 in. W.Cin gas use
● 4 mbar / 1.6 in. W.Cwith heavy fuel oil
● 3 mbar / 1.20 in. W.Cwith #2 fuel oil.
Combustion air US ver. 1
If you must alter the adjustment ring position in relation to diffuser disc,
combustion air velocity and quantity in combustion head will change.
Check combustion values by flue gas analysis and if necessary, adjust
combustion air quantity to be adequate.
On sequential fuel use adjustment ring position is the same both on gas
and on oil.
M5164 1640EN 35 (95)