Initial Start-up
59
Initial Start-Up (continued)
Beckett burner calibration
*1
Boiler model Model No. VR1-40 VR1-50 VR1-63
Burner model Beckett NX-VI 704 AFG-VI 801
*1
AFG-VI 801
*1
Fuel type oil No. 2 fuel oil
Pump pressure psig 175 175 175
Oil nozzle
Danfoss 0.85x60°AH n.a. n.a.
Delavan 0.85x60°A 1.10x45°W 1.35x60°W
Hago n.a. 1.10x45°W 1.35x60°B
Oil nozzle flow rate GPH@psig 1.15@175 1.40@175 1.75@175
Air tube length inches
mm
7
178
9
230
9
230
Air tube insertion inches
mm
4
7
/
8
124
7¼
184
7¼
184
Air tube combination NX70LJ AFG90MDAQ AFG90MDAQ
Head type 9-slot V1 V1
Head setting 3.5 1 4
Air setting see head setting 10/1 10/2
Static plate n.a. 2-3/4U 2-3/4U
Baffle n.a.
Fuel pump c/w solenoid valve 21844 21844 21844
Flange 32073 31309 31309
*1
The Beckett burner for the VR1-63 boiler is shipped with factory setting and oil nozzle installed. For VR1-50 boiler,
replace installed nozzle with nozzle packaged with burner.
5671 044 v1.0
IMPORTANT