Technical information

Initial Start-up
19
Initial Start-Up
Riello burner calibration
*1
Boiler model Model No. VR1-22 VR1-27
*1
VR1-33
Burner model Riello 40
Series
BF3 BF3
*1
BF5
Fuel type oil No. 2 fuel oil
Pump pressure psig 175 175 140
Oil nozzle Danfoss n.a. n.a. n.a.
Oil nozzle Delavan 0.5x60°xSS 0.6x60°xW
*3
0.85x60°xW
*2
Oil nozzle Hago n.a. n.a. n.a.
Oil nozzle flow rate GPH@psig 0.65@175 0.75@175 1.00@140
Air tube length inches
mm
7
178
7
178
6
5
/
16
160
Air tube insertion inches
mm
4
5
/
8
118
4
5
/
8
118
4¼
108
Turbulator setting 0.0 1.0 1.0
Air gate setting 3.7 5.0 4.0
*1
For VR1-27 boiler, replace installed nozzle with nozzle packaged with Riello burner.
*2
Factory-installed nozzle.
*3
Nozzles must be installed by installer.
Note: Riello oil burners are factory set for Vitorond 100, VR1-22, and -33 boilers and should
only require minor adjustments. Install appropriate nozzle and set the burner for model
VR1-27.
5351 050 v2.5
IMPORTANT
5351 050 v2.5