Gas Butterfly Gi / Emme 2000 - 3000 - 4500; Air / Gas Ratio Adjustment; Burner Start-Up Cycle - Riello GI/EMME 1400 Installation, Use And Maintenance Instructions

7.2.5

Gas butterfly GI / EMME 2000 - 3000 - 4500

The gas butterfly is fitted with an external adjustment unit, see
(Fig. 36), which assists subsequent cam calibration at low mains
pressures. Lock-ring B can be used to modify the throughput
cross-selection at minimum potential:
- 0 minimum aperture
- 2 maximum aperture
Having set the adjustment, lock with screw A.
7.3

Burner start-up cycle

Normal firing
MOTOR LOCK-OUT: It is caused by the motor overload relay if,
overload or no phase occurs.
20036118
Burner operation
7.2.6

AIR / GAS RATIO ADJUSTMENT

The final setting of gas delivery in relation to air delivery should
be performed after having defined operating conditions for gasoil
operation; this final setting is obtained by changing the profile of
cam. 21) (Fig. 3 at page 11).
D1397
Fig. 37
34 GB
D1395
No firing
Fig. 36
D1398
Fig. 38