Pump Pressure; Air Damper Adjustment; Only For Type 744T1K (For Low Output) - Riello RDB2.2 15-21 Installation, Use And Maintenance Instructions

8.4

Pump pressure

The pump leaves the factory set for kerosene working.
10 bar: maximum pressure for kerosene.
8.5

Air damper adjustment

The air damper is set in factory. This regulation is purely indica-
tive.
Each installation however, has its own unpredictable working
conditions: actual nozzle output; positive or negative pressure in
the combustion-chamber, the need of excess air, etc.
All these conditions may require a different air damper setting.
8.5.1

Only for type 744T1K (for low output)

The air setting is performed by mean of two independent damp-
ers (see Fig. 17 and Fig. 18).
Main air damper (A)(Fig. 17) - only for code 3514157
The main air damper (A) must be locked in the po-
sition indicated in Fig. 17.
WARNING
To set the positions of the damper, proceed as follows:
 Remove the secondary air damper (B) loosing the screws 1).
 Loosen the screw 2) and rotate the main air damper (A) to
the required position.
 Re-tighten the screw 2) and put back the secondary air
damper (B).
Secondary air damper (B)(Fig. 18)
The purpose of this damper is to perform a fine-tuning of the inlet
air. Tuning of this device is possible acting of the screw 3).
Start-up, calibration and operation of the burner
20127440
2
E9172
21 GB
A
3 B
B
1
Fig. 17
Fig. 18
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