Riello RLS 280/EV Quick start guide

20120900 (5) - 07/2021
Installation, use and maintenance instructions
Dual fuel light oil/ gas burners
Progressive two stage or modulating operation
CODE MODEL
20124918 - 20124919 - 20124927 RLS 280/EV
20124937 - 20124938 - 20124940 RLS 310/EV
20124941 - 20124942 - 20124943 RLS 410/EV
20124954 - 20124956 - 20124959 RLS 510/EV
GB

Original instructions

1 20120900
GB
Contents
1 Information and general instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Information about the instruction manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.2 General dangers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.3 Other symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.4 Delivery of the system and the instruction manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Guarantee and responsibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Safety and prevention. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Personnel training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Technical description of the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Burner models designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Electrical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Packaging - weight - Approximate measurements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Standard equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.6 Burner dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.7 Burner description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7.1 Panel board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.8 Firing rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.8.1 Procedure to refer burner operating condition at an altitude and/or at a combustion supporter air temperature
different to the standard values (328 ft above sea level, 68 °F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.9 Minimum furnace dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.10 Control box for the air/fuel ratio (LMV36...) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.11 Actuators (SQM33.5...) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Notes on safety for the installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3 Preliminary checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 Operation position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.5 Preparing the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.5.1 Boring the boiler plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.5.2 Blast tube length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.6 Securing the burner to the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.6.1 Accessibility to the interior of the combustion head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.7 Electrode and ignition pilot adjustment (RLS 280/EV model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.8 Electrode and ignition pilot adjustment (RLS 310 - 410 - 510/EV model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.9 Gas butterfly valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.10 Combustion head setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.11 Nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.11.1 Nozzle installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.11.2 Recommended nozzles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.12 Hydraulic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.12.1 Double-pipe circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.12.2 The loop circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.13 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.13.1 Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.13.2 Pressure variator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.14 Gas feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.14.1 Gas train. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.14.2 Gas pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.15 Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

20120900 2
GB
Contents
4.15.1 Supply cables and external connections passage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.15.2 Cable shielding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.15.3 Installation of shielded cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.15.4 Inverter connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.16 Thermal relay calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.16.1 Electronic thermal relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.17 Motor connection at 208-230 or 460V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.18 Motor connection at 575V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.19 Reversible direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5 Start-up, calibration and operation of the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.1 Notes on safety for the first start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.2 Adjustments before first firing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.3 Burner firing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.4 Burner calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.5 Burner start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.6 Adjusting gas/air delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.7 Adjusting oil/air delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
5.8 Final calibration of the pressure switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.8.1 Air pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.8.2 Maximum gas pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
5.8.3 Minimum gas pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.8.4 Low oil pressure switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.8.5 High oil pressure switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
5.9 Burner starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.9.1 Steady state operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.10 Firing failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.11 Flame signal measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
5.12 Final checks (with the burner working) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.1 Notes on safety for the maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2 Maintenance programme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.1 Maintenance frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.2 Safety test - with gas ball valve closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.3 Checking and cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.2.4 Safety components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.3 Checking the position of the speed sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.4 Opening the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.5 Closing the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Information and general instructions
3 20120900
GB
1.1 Information about the instruction manual
1.1.1 Introduction
The instruction manual supplied with the burner:
is an integral and essential part of the product and must not be
separated from it; it must therefore be kept carefully for any
necessary consultation and must accompany the burner even
if it is transferred to another owner or user, or to another sys-
tem. If the manual is lost or damaged, another copy must be
requested from the Technical Assistance Service of the area;
is designed for use by qualified personnel;
offers important indications and instructions relating to the
installation safety, start-up, use and maintenance of the
burner.
Symbols used in the manual
In some parts of the manual you will see triangular DANGER signs.
Pay great attention to these, as they indicate a situation of potential
danger.
1.1.2 General dangers
The dangers can be of 3 levels, as indicated below.
1.1.3 Other symbols
Abbreviations used
Ch. Chapter
Fig. Figure
Page Page
Sec. Section
Tab. Table
1 Information and general instructions
DANGER
Maximum danger level!
This symbol indicates operations which, if not car-
ried out correctly, cause serious injury, death or
long-term health risks.
WARNING
This symbol indicates operations which, if not car-
ried out correctly, may cause serious injury, death
or long-term health risks.
CAUTION
This symbol indicates operations which, if not car-
ried out correctly, may cause damage to the ma-
chine and/or injury to people.
DANGER
DANGER: LIVE COMPONENTS
This symbol indicates operations which, if not car-
ried out correctly, lead to electric shocks with lethal
consequences.
DANGER: FLAMMABLE MATERIAL
This symbol indicates the presence of flammable
materials.
DANGER: BURNING
This symbol indicates the risks of burns due to high
temperatures.
DANGER: CRUSHING OF LIMBS
This symbol indicates the presence of moving
parts: danger of crushing of limbs.
WARNING: MOVING PARTS
This symbol indicates that you must keep limbs
away from moving mechanical parts; danger of
crushing.
DANGER: EXPLOSION
This symbol signals places where an explosive at-
mosphere may be present. An explosive atmos-
phere is defined as a mixture - under atmospheric
conditions - of air and flammable substances in the
form of gases, vapours, mist or dust in which, after
ignition has occurred, combustion spreads to the
entire unburned mixture.
PERSONAL PROTECTION EQUIPMENT
These symbols indicate the equipment that must be
worn and kept by the operator for protection against
threats against safety and/or health while at work.
OBLIGATION TO ASSEMBLE THE HOOD AND
ALL THE SAFETY AND PROTECTION DEVICES
This symbol signals the obligation to reassemble
the hood and all the safety and protection devices
of the burner after any maintenance, cleaning or
checking operations.
ENVIRONMENTAL PROTECTION
This symbol gives indications for the use of the ma-
chine with respect for the environment.
IMPORTANT INFORMATION
This symbol indicates important information that
you must bear in mind.
This symbol indicates a list.

20120900 4
GB
Information and general instructions
1.1.4 Delivery of the system and the instruction
manual
When the system is delivered, it is important that:
the instruction manual is delivered to the user by the system
manufacturer, with the recommendation to keep it in the room
where the heat generator is to be installed.
The instruction manual shows:
– the serial number of the burner;
– the address and telephone number of the nearest Assis-
tance Centre
The system supplier must carefully inform the user about:
– the use of the system;
– any further tests that may be required before activating the
system;
– maintenance, and the need to have the system checked at
least once a year by a representative of the manufacturer or
another specialised technician.
To ensure a periodic check, the manufacturer recommends
the drawing up of a Maintenance Contract.
1.2 Guarantee and responsibility
The manufacturer guarantees its new products from the date of in-
stallation, in accordance with the regulations in force and/or the
sales contract. At the moment of the first start-up, check that the
burner is integral and complete.
In particular, the rights to the guarantee and the responsibility will
no longer be valid, in the event of damage to things or injury to peo-
ple, if such damage/injury was due to any of the following causes:
incorrect installation, start-up, use and maintenance of the
burner;
improper, incorrect or unreasonable use of the burner;
intervention of unqualified personnel;
carrying out of unauthorised modifications on the equipment;
use of the burner with safety devices that are faulty, incorrectly
applied and/or not working;
installation of untested supplementary components on the
burner;
powering of the burner with unsuitable fuels;
faults in the fuel supply system;
continuation of use of the burner when a fault has occurred;
repairs and/or overhauls incorrectly carried out;
modification of the combustion chamber with inserts that pre-
vent the regular development of the structurally established
flame;
insufficient and inappropriate surveillance and care of those
burner components most likely to be subject to wear and tear;
use of non-original components, including spare parts, kits,
accessories and optional;
force majeure.
The manufacturer furthermore declines any and every respon-
sibility for the failure to observe the contents of this manual.
.........................................................................................
...........................................................................................
...........................................................................................
.....................................................................................
WARNING
Failure to observe the information given in this man-
ual, operating negligence, incorrect installation and
carrying out of non authorised modifications will re-
sult in the annulment by the manufacturer of the
guarantee that it supplies with the burner.

Safety and prevention
5 20120900
GB
2.1 Introduction
The burners have been designed and built in compliance with cur-
rent regulations and directives, applying the known technical rules
of safety and envisaging all the potential danger situations.
It is necessary, however, to bear in mind that the imprudent and
clumsy use of the equipment may lead to situations of death risk for
the user or third parties, as well as the damaging of the burner or
other items. Inattention, thoughtlessness and excessive confi-
dence often cause accidents; the same applies to tiredness and
sleepiness.
It is a good idea to remember the following:
The burner must only be used as expressly described. Any
other use should be considered improper and therefore dan-
gerous.
In particular:
it can be applied to boilers operating with water, steam, diathermic
oil, and to other uses expressly foreseen by the manufacturer;
the type and pressure of the fuel, the voltage and frequency of the
electrical power supply, the minimum and maximum deliveries for
which the burner has been regulated, the pressurisation of the
combustion chamber, the dimensions of the combustion chamber
and the room temperature must all be within the values indicated in
the instruction manual.
Modification of the burner to alter its performance and destina-
tions is not allowed.
The burner must be used in exemplary technical safety condi-
tions. Any disturbances that could compromise safety must be
quickly eliminated.
Opening or tampering with the burner components is not
allowed, apart from the parts requiring maintenance.
Only those parts envisaged by the manufacturer can be
replaced.
2.2 Personnel training
The user is the person, body or company that has acquired the ma-
chine and intends to use it for the specific purpose. He is responsi-
ble for the machine and for the training of the people working
around it.
The user:
undertakes to entrust the machine exclusively to suitably
trained and qualified personnel;
undertakes to inform his personnel in a suitable way about the
application and observance of the safety instructions. With
that aim, he undertakes to ensure that everyone knows the
use and safety instructions for his own duties;
personnel must observe all the danger and caution indications
shown on the machine.
Personnel must not carry out, on their own initiative, opera-
tions or interventions that are not within their province.
Personnel must inform their superiors of every problem or
dangerous situation that may arise.
The assembly of parts of other makes, or any modifications,
can alter the characteristics of the machine and hence com-
promise operating safety. The manufacturer therefore declines
any and every responsibility for any damage that may be
caused by the use of non-original parts.
In addition:
2 Safety and prevention
WARNING
The manufacturer guarantees safety and proper
functioning only if all burner components are intact
and positioned correctly.
must take all the measures necessary to pre-
vent unauthorised people gaining access to the
machine;
the user must inform the manufacturer if faults
or malfunctioning of the accident prevention
systems are noticed, along with any presumed
danger situation;
personnel must always use the personal pro-
tective equipment envisaged by legislation and
follow the indications given in this manual.

20120900 6
GB
Technical description of the burner
3.1 Burner models designation
Tab. A
3.2 Technical data
Tab. B
3 Technical description of the burner
Model Code RBNA Code Voltage Fan motor starting Flame safeguard
RLS 280/EV
20124918 20116071 230/3/60
Inverter Burner mounted20124919 460/3/60
20124927 20122419 575/3/60
RLS 310/EV
20124937 20114123 230/3/60
Inverter Burner mounted20124938 460/3/60
20124940 20122422 575/3/60
RLS 410/EV
20124941 20114124 230/3/60
Inverter Burner mounted20124942 460/3/60
20124943 20122423 575/3/60
RLS 510/EV
20124954 20114125 230/3/60
Inverter Burner mounted20124955 460/3/60
20124959 20122426 575/3/60
Model RLS 280/EV RLS 310/EV
Output delivery (1)
High
kW 762 3.077 2.770* 1.026 3.986 3.587*
Mbtu/hr (4) 2.600 10.500 9.450* 3.500 13.600 12.240*
GPH 18,6 75,0 67,5* 25,0 97,1 87,4*
Low
kW 308 - - 403 - -
Mbtu/hr (4) 1.050 - - 1.375 - -
GPH 7,5 - - 9,8 - -
Fuel Oil n°2
Natural gas
Gas max. delivery SCFH 10.396 13.465
Gas pressure at max delivery (2) "WC 19,1 19,5
Operation Low-high or modulating
Nozzles 1
Standard applications Boilers: water, steam, thermail oil
Ambient temperature °F 32-104 (0-40°C)
Combustion air temperature °F Max. 140 (60°C)
Pump:
- Delivery (at 300 PSI) GPH 218
- Pressure range PSI 102 - 580
- Fuel temperature °F Max. 302 (150°C)
Noise level (gas) (3)
Noise level (oil) (3) dBA 82,7
83,2
78,7
79,3

Technical description of the burner
7 20120900
GB
Tab. C
(*) Firing Rate for C-ETL Canadian Listing
(1) Reference conditions: ambient temperature 68 °F (20°C) - Barometric pressure 394” WC - Altitude 329 ft.
(2) Pressure at test point 5)(Fig. 3) with zero pressure in the combustion chamber and maximum burner output.
(3) Sound pressure measured in manufacturer’s combustion laboratory, with burner operating on test boiler and at maximum rated output.
(4) Equivalent Btu values based on 1 USGPH = 140,000 Btu/hr.
Model RLS 410/EV RLS 510/EV
Output delivery (1)
High
kW 1.172 4.719 4.247* 1.465 5.627 5.064*
Mbtu/hr (4) 4.000 16.100 14.490* 5.000 19.200 17.280*
GPH 28,6 115 103.5* 35,7 137,1 123,4*
Low
kW 479 - - 586 - -
Mbtu/hr (4) 1.635 - - 2.000 - -
GPH 11,7 - - 14,3 - -
Fuel Oil n°2
Natural gas
Gas max. delivery SCFH 15.941 19.010
Gas pressure at max delivery(2) "WC 26.0 32.6
Operation Low-high or modulating
Nozzles 1
Standard applications Boilers: water, steam, thermal oil
Ambient temperature °F 32-104 (0-40°C)
Combustion air temperature °F Max. 140 (60°C)
Pump
- delivery (at 300 PSI) GPH 290 403
- pressure range PSI 102 - 580 102 - 435
- fuel temperature °F Max. 302 (150°C)
Noise level (gas) (3)
Noise level (oil) (3) dBA 82,9
83,4
83,6
84,1

20120900 8
GB
Technical description of the burner
3.3 Electrical data
Fan motor and pump motor IE3/NEMA PREMIUM EFFICIENCY
Tab. D
Model RLS 280/EV RLS 310/EV
Control circuit power supply V/Ph/Hz 120/1/60
Main power supply (+/- 10%) V/Ph/Hz 230-460/3/60 575/3/60 230-460/3/60 575/3/60
Fan motor rpm
HP
V
A
3510
5.5
230/460
12.4-6.2
3510
5.5
575
5
3540
10.2
230/460
24-12
3540
10.2
575
9.6
Pump motor rpm
HP
V
A
3515
2
230/460
5.6-2.8
3515
2
575
2.3
3515
2
230/460
5.6-2.8
3515
2
575
2.3
Ignition transformer Gas Pilot V1 - V2
I1 - I2
120 V - 1 x 8 kV
1.6 A - 20 mA
Electrical power consumption W6250 6250 10050 10050
Electrical control circuit consumption W max 750
Total electrical consumption W7000 7000 10800 10800
Electrical protection NEMA 3
Model RLS 410/EV RLS 510/EV
Control circuit power supply V/Ph/Hz 120/1/60
Main power supply (+/- 10%) V/Ph/Hz 230-460/3/60 575/3/60 230-460/3/60 575/3/60
Fan motor rpm
HP
V
A
3545
12.4
230/460
29/14.5
3545
12.4
575
11.6
3535
14.8
230/460
35.4/17.7
3535
14.8
575
14.2
Pump motor rpm
HP
V
A
3515
2
230/460
5.6/2.8
3515
2
575
2.3
3515
2
230/460
5.6/2.8
3515
2
575
2.3
Ignition transformer Gas Pilot V1 - V2
I1 - I2
120 V - 1 x 8 kV
1.6 A - 20 mA
Electrical power consumption W11950 11950 13950 13950
Electrical control circuit consumption W max 750
Total electrical consumption W12700 12700 14700 14700
Electrical protection NEMA 3

Technical description of the burner
9 20120900
GB
3.4 Packaging - weight - Approximate measurements
The packaging of the burner (Fig. 1) rests on a wooden platform
that is particularly suitable for lift trucks. The overall dimensions of
the packaging are shown in the Tab. E.
The weight of the burner complete with its packaging is shown in
Tab. E.
Tab. E
3.5 Standard equipment
Flange gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .No. 1
Flange fixing screws (M18 x 60). . . . . . . . . . . . . . . . . . . . . . .No. 4
Gas train flange gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
Gas train flange gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 2
Gas train flange fixing screws (M16x70) . . . . . . . . . . . . . . . . No. 8
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No. 1
inch A B C lbs
RLS 280/EV 7121/32“ 41” 413/4“ 620
RLS 310/EV 941/2“ 62 13/16“ 601/4“ 660
RLS 410/EV 941/2“ 62 13/16“ 601/4“ 660
RLS 510/EV 941/2“ 62 13/16“ 601/4“ 660
Fig. 1
D36

20120900 10
GB
Technical description of the burner
3.6 Burner dimensions
The maximum dimensions of the burner are given in Fig. 2.
Bear in mind that inspection of the combustion head requires the
burner to be opened by rotating the rear part on the hinge.
The overall dimensions of the burner when open are indicated by L
and R.
Tab. F
A
I
BB
I
A
E
D
N
C
G M
H
O
F
R
R
L
L
Fig. 2
20123199
inch A B C D E F G H I L M N O R
RLS 280/EV 49 3/4"19 9/32"6 11/16"10 5/8"20 1/2"ANSI 3" 19 7/8"31" 14" 43 25/32"22 27/32"155/8"12 19/32"38"
RLS 310/EV 49 3/4"20 23/64"6 11/16"12 21/64"20 1/2"ANSI 3" 20 1/4"31" 14 11/16"43 25/32"25 11/16"15 5/8"12 19/32"38"
RLS 410/EV 49 3/4"20 23/64"6 11/16"12 21/64"20 1/2"ANSI 3" 22 1/4"31" 14 11/16"43 25/32"25 11/16"15 5/8"12 19/32"38"
RLS 510/EV 49 3/4"20 23/64"6 11/16"12 21/64"20 1/2"ANSI 3" 22 1/4"31" 14 11/16"43 25/32"25 11/16"15 5/8"12 19/32"38"

Technical description of the burner
11 20120900
GB
3.7 Burner description
1 Lifting eyebolts
2Fan
3Fanmotor
4 Air gate valve servomotor
5 Gas pressure test point
6 Combustion head
7 Ignition pilot
8 Flame stability disk
9 Electric panel board - cover
10 Hinge for opening burner
11 Air inlet to fan
12 Manifold
13 Thermal insulation screen for securing burner to boiler
14 Gas train flange
15 Shutter
16 Flame inspection window
17 Gas butterfly valve
18 Combustion head air pressure test point
19 Air pressure test point “+”
20 Max gas pressure switch with pressure test point
21 Flame detector
22 Indication for checking the fan motor rotation
23 Oil modulator and gas butterfly valve servomotor
24 Pump
25 Pump motor
26 Valve group (see Fig. 4 on page 12)
27 Minimum oil pressure switch
28 Nozzle delivery pressure gauge
29 Nozzle return pressure gauge
30 Oil modulator
31 Maximum oil pressure switch
32 Reset button
33 Transparent protection
34 Pilot gas train attachment
35 Motor speed sensor
2
1213 1921
23 3
18
14
22
16
22
34
35
26
25
11 24 420 30 17
6
7
15
29
5
1
10
1
28
927
8
31
32
33
Fig. 3
20125119
WARNING
The burner can be opened either on the right or left
sides, irrespective of the side from which fuel is sup-
plied. When the burner is closed, the hinge can be
re-positioned on the opposite side.

20120900 12
GB
Technical description of the burner
3.7.1 Panel board description
1 Electronic cam
2 ON/OFF selector
3 OIL/OFF/GAS selector
4 LOCAL/REMOTE selector
5 ALARM SILENCE push-button
6 Output power regulator
7 POWER ON light signal
8 IGNITION ON light signal
9 CALL FOR HEAT light signal
10 FUEL ON light signal
11 ALARM light signal
12 Air pressure switch
13 Ignition transformer
14 Valve group terminal board
15 Operator panel with LCD display
16 Main terminal supply board
17 Auxiliary circuits fuse
18 Pump motor contact maker
19 Pump motor thermal relay (with reset button)
20 Flame sensor sheath
21 Fuel servomotor sheath
22 Maximum gas pressure switch sheath
23 Air servomotor sheath
24 Maximum oil pressure switch sheath
25 Minimum oil pressure switch sheath
26 Pump motor cables sheath
27 VS1Oil return safety solenoid valve
28 VROil return solenoid valve
29 UFOil delivery safety solenoid valve
30 UFOil solenoid valve
31 KO1 oil timer module and relay
32 KG1 gas timer module and relay
33 KP oil pump timer module and relay
34 KG2 auxiliary gas relay
35 KVP auxiliary fan/oil pump relay
36 AH horn
37 K1 auxiliary flame alight relay
38 K3 auxiliary alarm relay
39 K5 auxiliary burner lock out relay
40 K6 auxiliary inverter alarm relay
41 K2 auxiliary remote position relay
42 KMV auxiliary fan relay
43 Earth terminal
44 Fan motor earth sheath
45 Available for step down transformer
46 Available
Three types of burner failure may occur:
Flame safeguard lock-out
If the flame safeguard alarm 6)(Fig. 4) lights up, it indicates
that the burner is in lock-out. To reset, press the reset push-
button.
Pump motor trip
release by pressing the push-button on thermal overload
17)(Fig. 4). See “Thermal relay calibration” on page 36.
17
45
13
14
12
15
16
43
1
8
10 11
9
2
4
3
7
6
46
5
46
18
19
42
36
33
31
44
20
21
22
23
24
25 26
43
43
43
43
38
37
39
40
41
35
34
32
28
27
30
29
Fig. 4
20123200
WARNING
The connection of the inverter kits must be carried
out by the customer/ installer following the instruc-
tions (electrical drawing) provided with the burner
and the kits.

Technical description of the burner
13 20120900
GB
3.8 Firing rates
Maximum output must be selected in the hatched area of the dia-
gram (Fig. 5).
Minimum output must not be lower than the minimum limit shown
in the diagram.
WARNING
The firing rate area values have been obtained con-
sidering an ambient temperature of 68 °F, and an
atmospheric pressure of 394” WC and with the
combustion head adjusted as shown on page 23.
Model MBtu/hr
RLS 280/EV 2.600
RLS 310/EV 3.500
RLS 410/EV 4.000
RLS 510/EV 5.000
Fig. 5
0
2
4
6
8
10
12
14
16
18
20
mbar
8
7
6
5
4
3
2
0
1
w.c.
05600
5200
4800
4400
4000
3600
3200
2800
2400
2000
1600
1200
800
400
0
6000
MBtu/hr
kW
2000 4000 6000 8000 10000 12000 14000 16000 18000 20000
22
RLS 510/E
Burner power output
Combustion chamber pressure
Firing rate for C-ETL Canadian Listing
20116003
RLS310/E
RLS 410/E
RLS 280/E

20120900 14
GB
Technical description of the burner
3.8.1 Procedure to refer burner operating condition
at an altitude and/or at a combustion supporter
air temperature different to the standard values
(328 ft above sea level, 68 °F).
Tab. G
F- correction factor of discharge head and delivery in relation to temperature and altitude.
Reference conditions:
–Air temperature 68 °F (20 °C)
– Barometric pressure 394 ''w.c. (1000 mbar)
– Altitude 328 ft a.s.l. (100 m a.s.l.)
Example
Using the Tab. G , for an altitude of 3,000 ft and an air temperature
of 68 °F, an Ffactor value is obtained equal to 0.908;
if the capacity at the boiler furnace is Qfoc = 4,500 Mbtu/h, the cor-
rect output will be equal to:
Qburner = Qfoc / F = 4,500 / 0.908 = 4,956 Mbtu/h
3.9 Minimum furnace dimensions
The firing rates were set in relation to certified test boilers.
Fig. 6 indicates the diameter and length of the test combustion
chamber.
Example RLS 510/EV:
Output 19200 MBtu/hr: diameter 39.4 inch - length 16.5 ft.
AIR TEMPERATURE
Altitude Altitude bar. press. bar. press. 0 5 10 15 20 25 30 40 °C
ft a.s.l. m a.s.l. "w.c. mbar 32 41 50 59 68 77 86 104 °F
00399 1013,00 1,087 1,068 1,049 1,031 1,013 0,996 0,980 0,948
328 100 394 1000,00 1,073 1,054 1,035 1,017 1,000 0,983 0,967 0,936
1.000 305 385 977,40 1,049 1,030 1,012 0,994 0,977 0,961 0,945 0,915
2.000 610 371 942,80 1,012 0,994 0,976 0,959 0,943 0,927 0,912 0,883
3.000 915 358 908,20 0,975 0,957 0,940 0,924 0,908 0,893 0,878 0,850
4.000 1.220 345 875,80 0,940 0,923 0,907 0,891 0,876 0,861 0,847 0,820
5.000 1.525 332 843,50 0,905 0,889 0,873 0,858 0,844 0,829 0,816 0,790
6.000 1.830 320 811,85 0,871 0,856 0,841 0,826 0,812 0,798 0,785 0,760
7.000 2.135 307 779,80 0,837 0,822 0,807 0,793 0,780 0,767 0,754 0,730
8.000 2.440 294 747,80 0,803 0,788 0,774 0,761 0,748 0,735 0,723 0,700
15. 7 19. 7 23. 6 31. 5 39. 4 47. 2
ft
inches
ft= 0,12
MBtu/ hr 18.9
11.3
7.5
1000
1.5
760
16.5
13.2
9.9
6.6
3.3
1.6
MBtu
hr
37870
23.0
29.6
22.7
Fig. 6
Diameter (inches)
Length (ft)
Furnace dimensions
D9396

Technical description of the burner
15 20120900
GB
3.10 Control box for the air/fuel ratio (LMV36...)
Warning notes
All activities (mounting, installation and service work, etc.)
must be performed by qualified staff.
Before making any wiring changes in the connection area,
completely isolate the plant from mains supply (all-polar dis-
connection). Ensure that the plant cannot be inadvertently
switched on again and that it is indeed dead. If not observed,
there is a risk of electric shock hazard.
Ensure protection against electric shock hazard by providing
adequate protection for the burner control’s connection termi-
nals.
Each time work has been carried out (mounting, installation,
service work, etc.), check to ensure that wiring and parame-
ters is in an orderly state.
Fall or shock can adversely affect the safety functions. Such
units must not be put into operation, even if they do not exhibit
any damage.
Introduction
The control box for the air/fuel ratio (Fig. 7), (hereafter referred to
simply as the control box), that equips the burners, carries out a se-
ries of integrated functions in order to optimise burner functioning,
both for single operation and together with other units (e.g. double
furnace boiler or more than one generator at the same time).
The basic functions carried out by the control box relate to:
flame control;
the dosage of air and fuel via the positioning (with direct servo-
control) of the relative valves, excluding the possible play in
the mechanical cam calibration systems;
the modulation of burner output, on the basis of the load
requested by the system, maintaining the pressure or temper-
ature of the boiler at the working values set;
the safety diagnostic of the air and fuel circuits, via which it is
possible to easily identify any causes of malfunctioning.
Mechanical design
The following system components are integrated in the LMV36...
basic unit:
• Burner control with gas valve proving system
• Electronic air / fuel ratio control
• Control frequency converter air fan
• Modbus interface
Installation notes
• Always run high-voltage ignition cables separately while ob-
serving the greatest possible distance to the unit and to other
cables.
• Do not mix up live and neutral conductors (fire hazard, danger-
ous failures, loss of protection against electric shock hazard,
etc.).
• Do not lay the connecting cable from the LMV36... to the
AZL2… together with other cables.
Electrical connection of the flame detectors
It is important to achieve practically disturbance- and loss-free sig-
nal transmission:
• Never run the detector cable together with other cables.
– Line capacitance reduces the magnitude of the flame signal.
– Use a separate cable.
• Observe the maximum permissible detector cable lengths.
• The ionization probe is not protected against electric shock
hazard. It is mainspowered and must be protected against ac-
cidental contact.
• Locate the ignition electrode and the ionization probe such that
the ignition spark cannot arc over to the ionization probe (risk
of electrical overloads).
WARNING
To avoid injury to persons, damage to property
or the environment, the following warning notes
must be observed!
The LMV36... is a safety device!
Do not open, interfere with or modify the unit.
The manufacturer will not assume responsibili-
ty for any damage resulting from unauthorized
interference!
WARNING
The first start-up, like every further operation for
the internal settings of the control box, requires
access by means of a password and is only to
be carried out by personnel of the Technical As-
sistance Service who have been specifically
trained in the internal programming of the tool.
Fig. 7
D9300

20120900 16
GB
Technical description of the burner
Technical data
Tab. H
LMV36... basic unit Mains voltage AC 120 V -15 % / +10 %
Mains frequency 50 / 60 Hz ±6 %
Power consumption < 30 W (typically)
Safety class I, with parts according to II and III to DIN EN 60730-1
Terminal loading
‘Inputs’
Unit fuse F1 (internally) 6.3 AT
Perm. mains primary fuse (externally) Max. 16 AT
Undervoltage
• Safety shutdown from operating position
at mains voltage
• Restart on rise in mains voltage
Approx. AC 93 V
Approx. AC 96 V
Terminal loading
‘Outputs’
Total contact loading:
• Nominal voltage
• Unit input current (safety loop) from:
- Fan motor contactor
- Ignition transformer
- Valves
- Oil pump / magnetic clutch
AC 120 V, 50 / 60 Hz
Max. 5 A
Individual contact loading:
Fan motor contactor
• Nominal voltage
• Nominal current
• Power factor
AC 120 V, 50 / 60 Hz
1.6 A pilot duty load declaration to UL372
cos> 0.4
Alarm output
• Nominal voltage
• Nominal current
• Power factor
AC 120 V, 50 / 60 Hz
1 A
cos> 0.4
Ignition transformer
• Nominal voltage
• Nominal current
• Power factor
AC 120 V, 50 / 60 Hz
1.6 A pilot duty load declaration to UL372 or 250 VA ignition
load declaration to UL372
cos> 0.2
Fuel valves
• Nominal voltage
• Nominal current
• Power factor
AC 120 V, 50 / 60 Hz
1.6 A pilot duty load declaration to UL372
cos> 0.4
Operation display
• Nominal voltage
• Nominal current
• Power factor
AC 120 V, 50 / 60 Hz
0.5 A
cos> 0.4
Cable lengths Mains line
Display, BCI
External lockout reset button
Max. 100 m (100 pF/m)
For used outside the burner cover or the control panel:
Max. 3 m (100 pF/m)
Max. 20 m (100 pF/m)
Environmental
conditions
Operation
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60721-3-3
Class 3K3
Class 3M3
-20...+60 °C
< 95 % r.h.

Technical description of the burner
17 20120900
GB
Operation sequence of the burner
Key to the sequence diagrams:
Valve proving takes place depending on the parameter:
2) Only with valve proving on start-up
3) Parameter: with/without alarm in the event of start prevention
4) In the event of an erroneous signal on start-up, followed by
phase 10, otherwise phase 70
0° Position as supplied (0°)
90° Actuator fully open (90°)
Assignment of times:
t1 Pre-purge time
TSA1 Safety time 1 gas / oil
TSA2 Safety time 2 gas / oil
00 02 12 22 24 30 36 38 40 42 44 50 52 60 62 70 72 74 81 82 8380
3)
4)
2)
TSA1 TSA2
t1
90
pa
T
P
P
T
P
10
Shutdown
Operation
Startup Valve proving
OUTPUTS INPUTS
Phase number
Fuel
Actuator 2
Air
Actuator 1
Actuators
Safety limit thermostat (STB)
Control thermostat or pressurestat (R)
Flame signal (FS)
Air pressure switch (LP)
Pressure switch-min (Pmin)
Pressure switch-max (Pmax)
Valve proving / leakage test (P LT)
POC (alternative to Pmax)
No-load position
Ignition load
Postpurge position
Nominal load
Low-fire
90°
0°
VSD
Motor (M)
Ignition transformer (Z)
Alarm (AL)
Safety valve (SV)
Fuel valve 1 (V1)
Fuel valve 2 (V2)
Pilot valve (PV)
No-load position
Ignition load
Postpurge position
Nominal load
Low-fire
90°
0°
No-load position
Ignition load
Postpurge position
Nominal load
Low-fire
90°
0°
Fig. 8
D9288
Signal ON
Signal OFF
Any signal is allowed
In standby: after referencing, the actuator is driven to the
no-load position

20120900 18
GB
Technical description of the burner
3.11 Actuators (SQM33.5...)
Warning notes
All activities (mounting, installation and service work, etc.)
must be performed by qualified staff.
Before making any wiring changes in the connection area of
the units, completely isolate the equipment from mains supply
(all-polar disconnection). If not observed, there is a risk of
electric shock hazard.
Ensure protection against electric shock hazard by providing
adequate protection for the connection terminals and by
securing the housing cover.
After any kind of activity (mounting, installation and service
work, etc.), check wiring.
Also ensure that the parameters are correctly set.
Fall or shock can adversely affect the safety functions. Such
units must not be put into operation, even if they do not exhibit
any damage.
Use
The actuators (Fig. 9) are used to drive and position the air damper
and the gas butterfly valve, without mechanical leverages but via
the interposition of an elastic coupling.
They are commanded by the control box, which constantly checks
their position by means of a return signal from the optic sensor in-
side the actuator.
The position (in degrees) of the actuators can be seen on the dis-
play of the Operator Panel.
Index “0” for fuel actuator, index “1” for air actuator.
Installation notes
• Always run the high-voltage ignition cables separate from the
unit and other cables while observing the greatest possible dis-
tance.
• The holding torque is reduced when the actuator is disconnect-
ed from power.
Technical data
Tab. I
WARNING
To avoid injury to persons, damage to property
or the environment, the following warning notes
should be observed!
Do not open, interfere with or modify the actua-
tors!
WARNING
The actuator’s housing must not be opened.
The actuator contains an optical feedback sys-
tem.
WARNING
When servicing or replacing the actuators, take
care not to invert the connectors.
Operating voltage AC / DC 24 V ±20 %
(load on interface)
Safety class 2 to EN 60 730 part 1 and parts 2…14
Power consumption max. 10 W
Degree of protection IP54 to EN 60 529-1
Opening time 0 - 90° min: 5s, max.: 120s
(depending on the type of control box)
Firing rate 0 - 90°
Cable connection RAST2,5 connectors
Direction of rotation Clockwise/anticlockwise
(can be selected from the control box)
Nominal output torque 3 Nm
Holding torque
(when live) 3 Nm
Holding torque
(when dead) 2.6 Nm
Weight approx. 1 kg
Environmental conditions:
Operation
Climatic conditions
Mechanical conditions
Temperature range
Humidity
DIN EN 60 721-3-3
class 3K5
class 3M4
-20...+ 60 °C
< 95 % r.h.
D8271
Fig. 9