Burner Starting - Riello RL 70/M Installation, Use And Maintenance Instructions

Position jumpers
(A)
1 Servomotor
2 Adjustable profile cam
3 Adjustment screws for cam starting profile
4 Adjustment fixing screws
5 Adjustment screws for cam and profile
(D)
(E)
(B) (C)
D1229
1 2
D791
Trim potentiometers
Slide switch
D2593
12

BURNER STARTING

Close the control circuit, with the switches in fig. (C) and
(E) in the AUTO position.
On firing turn the switch (C) to MAN.
MAXIMUM OUTPUT
Using button (B), "increase output" until it stops at app.
130° (cam 1).
Place the slide switch on MAX and set the relative MAX
trim potentiometer (setting must be very near to 130°) to
exploit as far as possible the variable profile cam 2)(D).
The setting of the oil delivery must be made on the varia-
ble eccentric 6)(A) page 11 by turning the screw 5)(A)
page. 11.
The air setting must be made on the variable profile cam
2)(D) after loosening the screws 4) by turning the screws
3).
MINIMUM OUTPUT
With the slide switch on the OPE position, use button (B)
"decrease output" until it stops at app. 20° (cam 3).
Put the slide switch in the MIN position and set the mod-
ulation minimum using the relative MIN trim potentiome-
ter.
The setting of the oil delivery must be made on the nut
and lock-nut 4)(A)page.11 and, if necessary, on the va-
riable eccentric 6)(A) page 11.
Important
When the eccentricity is modified, it is necessary to bring
back to MAX and check the setting again.
The setting must be made on the adjustable profile cam
2)(D).
INTERMEDIATE OUTPUTS
With the switch (C) in the AUTO position, the slide switch
in the OPE position and the switch 1)(E) in the MAN po-
sition, move the button 2)(E) in various intermediate lev-
els between maximum and minimum and set the variable
profile cam 2)(D) to achieve optimum combustion, by
turning the screws 3).
If possible, do not change the previously set maximum
and minimum levels.
Do not change the eccentric, already adjusted for MAX
and MIN.
Check the various setting levels with a combustion anal-
ysis.
Important
Make a progressive setting of the profile, without sharp
changes.
When the setting is complete, lock the cam profile using
screws 4)(D).