1.
Technical Data
1.1 Range of models
Type
Oil nozzle
Oil throughput
Fuel power
(US gal/h 80°H)
m
in kg/h
Q
F
in kW
HLZ 45 AV 17 G1
0,30
0,84 – 1,52
10 – 18
HLZ 45 AV 17 G1
0,35
1,10 – 1,85
13 – 22
HLZ 45 AV 19 G1
0,40
1,18 – 2,02
14 – 24
HLZ 45 AV 19 G1
0,45
1,35 – 2,53
16 – 30
HLZ 45 AV 22 G1
0,55
1,69 – 3,04
20 – 36
HLZ 45 AV 22 G1
0,60
1,94 – 3,37
23 – 40
HLZ 45 AV 24 G1
0,60
2,19 – 3,54
26 – 42
HLZ 45 AV 24 G2
0,65
2,28 – 4,05
27 – 48
HLZ 45 AV 24 G2
0,75
2,45 – 4,38
29 – 52
HLZ 45 AV 24 G2
0,85
2,78 – 4,72
33 – 56
HLZ 45 BV 27 G2
0,85
2,95 – 5,06
35 – 60
HLZ 45 BV 27 G2
1,00
3,29 – 5,56
39 – 66
HLZ 45 BV 31 G2
1,10
4,05 – 6,24
48 – 74
HLZ 45 BV 31 G2
1,25
4,22 – 6,91
50 – 82
Image: Model code H L Z 45 A V 19 G1
H
R
Herrmann
L
R
Light oil burner
Z
R
Two-stage
45
R
Series
A
R
Mixing device
V
R
Pre-heater
19
R
Diameter air nozzle (17, 19, 22, 24)
G1
R
Size of blower (G1 HRG 134, G2 RG 148)
1.2 Certification
European Standard (EN) 267:2009, class 3
1.3 Operating range
The operating range diagram of an oilburner describes the maximum fur-
nace pressure dependig on the oil mass flow. For a reliable start up the
burner may alternatively be started in the first or second stage. While it is
preferable for the burner to start in the lower power area in the second
stage, a start in the middle or upper power area in the first stage is ad-
vantageous. The diagram below also shows the corresponding starting
points. The range of operation has been determined on a test boiler in ac-
cordance with DIN EN 267:2009 and relates to a height of 100 metres
MSL, as well as to a room temperature of 20ºC. The maximum achievable
firing rate depends on the respective starting resistance of the heating
system. This is influenced by the geometry of the heating system and the
heat exchanger, as well as the flue gas system.
1.4 Serial scope of delivery
1 Oil burner
1 Unit flange
1 Seal for the flange
2 Odour-proof oil tubes (length 1,500 mm)
4 M8 x 30 fastening screws for unit or shift flange including washers
1 Hexagon key, nominal diameter 4 mm
1 7-pole/4-pole socket – part of Euro female connector in accordance
with DIN 4791:1985-09 (plug connectors for the boiler are not included
in the scope of delivery) 2-pole Rast-5 plug for the remote unlatching
1 Airborne sound absorber
1 Assembly and operating instructions
HLZ 45 AV 19 G1
HLZ 45 AV 17 G1
HLZ 45 AV 22 G1
HLZ 45 BV 27 G2
HLZ 45 AV 24 G2
6,0
6,5
7,0
7,5
HLZ 45 BV 31 G2
HLZ 45 AV 24 G1
Operating range
Fur
nace pr
essur
e in mbar
2. Stufe
(starting point)
1. stage
(starting point)
1. stage
2. stage
Oli mass flow in kg/h
1.5 Fuel
-
Heating oil EL in accordance with DIN 51603-1
-
Heating oil EL, low sulphur, in accordance with DIN 51603-1
-
Heating oil EL, bio 10 (bio heating oil in accordance with
DIN SPEC 51603-6, heating oil EL, low sulphur, with up to 10% portion
of FAME, corresponding to the quality requirements of DIN 14214)
1.6 Components
Components
Manufacturer
Designation of model
Blower
ebm-papst
HRG 134 / RG 148
Motor
ACC
EB 95 C 35 / 2
Oil pump
Danfoss
BFP 52 E L3
Oil pre-heater
Danfoss
FPHB 5, PTC 50,
T 60/32, 30-90 W
Ignition
Danfoss/Beru
EBI 4/ZTÜ with flame
monitoring
Flame control
BST-Solutions
Wide Band Flame
Detector KLC 2002
Beru
Ignition unit with flame
monitoring, ZTÜ
Firing unit
Elster
CM 168
Communication interface (CI)
Herrmann
CI 1
1.7 Electrical data
Nominal voltage
230 V ~50 Hz
Starting power
approximately 180 W
Operating power
approximately 130 W–270 W
Contact rating of heat valve and switch 6A~ at minimum
1.8 Acoustic emissions
The HLZ 45 burner is equipped in series with an airborne sound absorber.
By using this sound absorber the sound pressure level can be reduced to a
maximum burner output from 68 dB (A) [without sound absorber] to 60 dB
(A) [with sound absorber]. These values have been detected with a measur -
ing instrument with a degree of accuracy 2 in accordance with IEC 60651
(International Electro-technical Commission) and at a horizontal distance of
2 metres.
1.9 Packing
Individual packaging (carton), base x height: 400 x 400 x 465 mm
Individual weight of the burner without packaging: approximately 12.0 kg
Individual weight of the burner with packaging: approximately 13.0 kg
Collective packaging (18 single cartons on an Euro pallet), base x height:
1,200 x 800 x 1,700 mm
Weight of pallet: approximately 254 kg
2.
Functional description
The HLZ 45 oil burner is designed as two-stage blue flame burner for ope-
ration with EL heating oil. A two-stage gear pump is used for fuel injection.
The injected fuel mass flow depends on the size of the nozzle and the in-
jection pressure adjusted at the respective pressure balance valves of the
respective load stage (6bar<p
E
<25bar). For adjustment of the air volume flow
to the injected fuel mass flow a regulating speed blower is assigned. During
the operation of the burner and before each burner start up the fuel is heated
to a temperature of approximately 70º C in an electric fuel heater. Through
this process, temperature and quality conditioned fluctuations of the fuel
viscosity that have an effect on the spraying process and the fuel flow rate
are decreased. The fuel spray is ignited by an electric spark that is formed
by the application of high voltage between two initiating electrodes.
Subsequently we will go into the function of the individual sub-systems
in more detail.
2.1 Mixing device
A blue flame burner mixing device is used to burn the mixture. The fuel
spray that escapes from the nozzle evaporates before the actual reaction
of combustion by a mixture of hot flue gases. The low level of temperature
within the evaporating zone and the water content of the drawn-in flue ga-
ses prevent the formation of soot. The intensity of the backflow is indicated
by the rate of recirculation that measures the proportion of the recirculated
flow of flue gas of the entire gas mass flow. Low rates of recirculation fa-
vour the formation of soot. The solid state of soot particles confers a yellow
colour to the flame. An increase in the recirculation of flue gas reduces the
rate of soot formation and ultimately results in a completely soot-free flame
that emits a hardly visible blue flame to the human eye.
20
EN
