Installation and operating instruction
Oil burner WL20/1-C Z
4 Installation
83307602 1/2019-04 La
20-84
4.2 Selecting a nozzle
Determine nozzle size.
Load distribution
The load distribution of the burner is made via a pressure change-over on the oil
pump.
Generally, stage 1 takes on approx. 65 % of the maximum oil throughput, a different
distribution may be necessary.
Example
Burner capacity required: approx. 100 kW
65 % of burner capacity required: 100 kW x 0.65 = 65 kW
Nozzle size 1.5 gph, see nozzle selection table:
Stage 1: 10 bar (67.8 kW)
Stage 2: 22 bar (101.2 kW)
Recommended nozzles
Make
Characteristics
Fluidics
45°SF
(1
, 60°SF
Steinen
60°S
(2
(1
Only from 12 bar pump pressure and single pipe system (higher oil temperat-
ures).
(2
We recommend Fluidics nozzles for nozzle size 1.10 gph.
Pump pressure setting
Stage 1
Stage 2
8 …
10
… 14 bar
20 …
22
… 24 bar
Spray characteristic and spray angle varies depending on pump pressure.