Riello RLS 190/M MZ, Инструкции по установке, использованию и обслуживанию

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15
1 - FIRING OUTPUT
According to EN 676 Regulations:
Burners with MAX output up to 120 kW
Firing can be performed at the maximum opera-
tion output level. Example:
• Max. operation output
: 120 kW
• Max. firing output : 120 kW
Burners with MAX output above 120 kW
Firing must be performed at a lower output than
the max. operation output. If the firing output
does not exceed 120 kW, no calculations are
required. If firing output exceeds 120 kW, the
regulations prescribe that the value be defined
according to the control box safety time "ts":
- For ts = 2s, firing output must be equal to or
lower than 1/2 of max. operation output.
- For ts = 3s, firing output must be equal to or
lower than 1/3 of max. operation output.
Example: MAX operation output of 600 kW.
Firing output must be equal to or lower than:
• 300 kW con ts = 2s
• 200 kW con ts = 3s
In order to measure the firing output:
- Extract the UV cell 17)(A)p.4 (the burner will
ignite and lock-out at the end of a safety
period).
- Perform 10 firings with consecutive lock-outs.
On the meter read the quantity of gas burned.
- This quantity must be equal to or lower than
the quantity given by the formula:
Example: for gas G 20 (10 kWh/Sm
3
):
Max. operation output: 600 kW corresponding to
60 Sm
3
/h
After 10 firings with lock-outs, the delivery read
on the meter must be equal to or lower than:
60 : 360 = 0,166 Sm
3
2 - MAX. OUTPUT
Max. output of the burner must be set within the
firing rate range shown on page 5.
In the above instructions we left the burner run-
ning in MIN. output operation. Now press button
2)(A) “increase output” and keep it pressed until
the servomotor has opened the air gate valve
and the gas butterfly valve.
Gas calibration
Measure the gas delivery at the meter.
A guideline indication can be calculated from the
table (A)p.13, simply read off the gas pressure
on the U-type manometer, see fig. (D)p.14, and
follow the instructions on page 13.
- If delivery needs to be reduced, diminish out-
let gas pressure and, if it is already very low,
slightly close adjustment valve VR.
- If delivery needs to be increased, increase
outlet gas pressure.
Adjusting air delivery
Progressively adjust the end profile of cam 4)(B)
by turning the screws 7)(B).
- Turn the screws clockwise to increase air
delivery.
- Turn the screws counter-clockwise to reduce
air delivery.
(A)
D791
1 2
(B)
D1710
1 Servomotor
2 Servomotor 1) - Cam 4): engaged
3 Servomotor 1) - Cam 4): disengaged
4 Adjustable profile cam
5 Cam starting profile adjustment screws
6 Adjustment fixing screws 7 Cam end profile adjustment screws
8 Graduated sector for gas butterfly
valve
9 Index for graduated sector 8
10 Key for cam III adjustment
Sm
3
/h (max. burner delivery)
360