Immergas LUXOR Series User manual

PELLET BOILERS
LUXOR
Pellet boilers

3
INDEX
MAIN INDEX
1 LUXOR DESCRIPTION..........................................................................................................................................................................4
2 LUXOR FEATURES.................................................................................................................................................................................5
3 QUALITATIVE FEATURES OF THE PELLET ..................................................................................................................................7
4 LUXOR 16 MAIN DIMENSIONS.........................................................................................................................................................8
5 LUXOR 20  24 MAIN DIMENSIONS .................................................................................................................................................9
6 LUXOR 28  33 MAIN DIMENSIONS ...............................................................................................................................................10
7 HYDRAULIC CONNECTIONS TO THE SYSTEM.........................................................................................................................11
8 ANTI-CONDENSATION VALVE KIT CONNECTION (OPTIONAL)........................................................................................12
9 INSTALLATION ROOM FEATURES................................................................................................................................................13
10 MINIMUM INSTALLATION DISTANCES AND PROVISIONS...................................................................................................14
11 FLUE EXHAUST CONNECTION......................................................................................................................................................15
12 CONNECTION TO THE CHIMNEY................................................................................................................................................16
13 DRAUGHT REGULATOR OPTIONAL .........................................................................................................................................18
14 OPERATING PRINCIPLE....................................................................................................................................................................19
15 FEATURES OF THE INTEGRATED PELLET TANK.....................................................................................................................20
16 LUXOR TECHNICAL DATA...............................................................................................................................................................21
17 PRODUCT LABELLING ......................................................................................................................................................................24
18 AVAILABLE HEAD FLOW RATE GRAPHICS................................................................................................................................26
19 SYSTEM MINIMUM WATER CONTENT AND PUFFER PROBE .............................................................................................27
20 CONTROL PANEL ................................................................................................................................................................................28
21 SAFETY DEVICES.................................................................................................................................................................................29
22 P.C.B. FUNCTIONS...............................................................................................................................................................................31
23 NOTES ON MAINTENANCE AND CLEANING...........................................................................................................................32
24 LUXOR PRACTICAL WIRING DIAGRAM.....................................................................................................................................34
25 OPTIONAL .............................................................................................................................................................................................35
26 COMBINED STORAGE TANK UNIT FEATURES PUFFER.....................................................................................................36
27 OPTIONAL PELLET TANK 350 LITRES  225 Kg..........................................................................................................................42
28 OPTIONAL PELLET TANK 500 LITRES  320 Kg..........................................................................................................................43
29 HYDRAULIC DIAGRAM EXAMPLE: LUXOR + THERMAL SOLAR SYSTEMS....................................................................44
30 HYDRAULIC DIAGRAM EXAMPLE: LUXOR + CONDENSING BOILER..............................................................................45
31 WIRING DIAGRAM EXAMPLE: LUXOR + HEAT PUMP AND SYSTEM MANAGER..........................................................................46

LUXOR
4
LUXOR is the range of oor standing pellet boilers proposed by
Immergas for room central heating / C.H. systems and for the
production of DHW, with fan assisted open chamber with wide
ame/power modulation range, ideal for new, redevelopment
or in place of obsolete solid fuel generators.
e pellet is a particularly appreciated natural fuel that oers the
following important advantages: high caloric value and reduced
ash residue, savings in running costs, easy to use and nd.
anks to the reduced dimensions and high achievable power
(up to 33 kW), simplicity and ease of installation, the LUXOR
series boilers are the ideal solution for single family homes, but
also for small and medium-sized commercial buildings.
Particular attention to design was paid to search for maximum
energy eciency of the generator, as well as a high autonomy,
up to 56 hours with modulating operation (ref. LUXOR 28
and 33 models) and reduction of extraordinary maintenance
interventions.
All Immergas pellet boilers respect the maximum level of ef-
ciency of UNI EN 303-5 falling within class 5: the standard
classies the solid biomass boilers on the basis of eciency and
emissions of carbon monoxide (CO), gaseous organic carbon
compounds (OGC) and powder produced.
Class 5 is the only one that can benet from the Conto Termico
2.0; alternatively, the LUXOR series boilers can also benet from
the tax deductions in force.
Combined with a puer and possibly with a thermal solar sys-
tem, high levels of eciency can be achieved both from an eco-
logical and performance point of view. e thermal system can
also be integrated with a condensing boiler, providing additional
energy to the puer if renewable energy sources are insucient,
always ensuring maximum comfort at the lowest running costs.
Approved only for indoor installation in suitable technical vol-
umes or in a boiler room, they have an IPX 4D electrical protec-
tion; they are extremely simple to operate combined with very
minimal routine maintenance operations by the end customer.
e microprocessor electronics, allow an excellent control of
temperatures and, thanks to the LCD display always on view, an
excellent visibility of parameters and settings made.
For modern design, a number of dedicated options are available
for completing the system, such as:
• Anti-condensation kit, including mixing valve calibrated at
55 °C;
• Draught regulator kit, recommended on chimneys with long
sections (over 10 metres);
• Separated pellet tank kit with loading auger;
• Pellet loading control unit kit;
• Level sensor kit for pellet loading.
1 LUXOR DESCRIPTION

LUXOR
5
2 LUXOR FEATURES
Range of pellet boilers formed by 5 central heating / C.H. models
for open room base central heating and high performance fan
assisted (type B23), (up to 92.1% ref. model LUXOR 20), with
power from 16 to 33 kW, which may only be installed inside
technical rooms.
• Operation only and exclusively with 6 mm pellet, it is recom-
mended to use pellet certied in EN PLUS A1 class;
• Carbon steel combustion chamber made of 16 vertical smoke
pipes with variable length according to power;
• Practical mechanical removal systems of unburnt residues of
the heat exchanger thanks to special turbulators placed inside
the smoke pipes, driven by a manual pipe scraper lever;
• Brazier with cast iron crucible, removable for its cleaning;
• Practical ash drawer under the crucible where combustion
takes place;
• High eciency heat exchanger characterised by wide water
passages and relative low clogging risks;
• Wide modulation range (up to about 20% for the LUXOR 33
model);
• Integrated pellet tank with loading auger, with a 46 kg capacity
(LUXOR 16), 60 kg (LUXOR 20 - 24) and 80 kg (LUXOR 28
- 33);
• Maximum autonomy: up to 56 hours wth modulating opera-
tion (ref. LUXOR 28 - 33 models);
• Boiler class 5 (according to EN 303-5) with regard to polluting
emissions and eciency;
• Vermiculite insulated door with double coating and hook
closure with handle;
• Practical top door for pellet loading;
• Grey fully removable panelling (RAL 9600);

LUXOR
6
• Low power consumption system circulator, preset as standard;
• Automatic air vent valve;
• Insulation with 30 mm thickness non-allergenic synthetic wool
around the heat exchanger body;
• Variable speed suction fan, electronically controlled by inverter
board;
• Automatic pellet conveyor auger controlled by P.C.B.;
• Advanced ignition system thanks to the presence of a ceramic
electrode, with ignition time between 60 and 90 seconds which
ensures speed and reliability over time;
• Control panel that can be installed as required, on the side
panels, right or le, for setting the main settings;
• Self-diagnostics system with display of the operating status
and anomalies;
• Electrical safety against power surges by means of a main fuse;
• IPX 4D electrical insulation rating;
• 2.5 bar safety valve and 8-litre diaphragm expansion vessel /
expansion tank integrated as standard;
• Other standard devices and functions present:
- puer NTC probe;
- 100 °C water limit NTC probe;
- 100 °C water manual reset safety thermostat;
- ue temperature probe (polarised thermocouple);
- ue pressure switch to check correct fan and ue exhaust
circuit operation;
- electronic pressure control of the system by means of pres-
sure transducer;
- antifreeze function;
- pump anti-block function;
- system postcirculation function;
- pre-ventilation function for combustion chamber washing;
- automatic brazier cleaning function.
• Can be combined with a wide range of optional items to com-
plete the system.
It is available in the model:
• LUXOR 16 code 3.028481
• LUXOR 20 code 3.028482
• LUXOR 24 code 3.028483
• LUXOR 28 code 3.028484
• LUXOR 33 code 3.028485

LUXOR
7
e pellet consists of pressed wooden cylinders, produced
from sawdust and woodworking (shavings and sawdust). Being
obtained from woodworking waste, it respects the ecosystem
because it does not require the knocking down of new trees.
As required by current legislation governing the product features
of fuels, it must be produced exclusively with untreated sawdust,
without other added materials.
e binding capacity of the lignin, contained in wood, allows
to obtain a compact product without adding additives and
chemical substances unrelated to wood: therefore, a high yield
natural fuel is obtained.
Use of poor quality pellets or other unsuitable materials may
damage certain components of the boiler and compromise its
correct operation.
For the Immergas boilers only use with 6mm diameter, 30 mm
long pellets having maximum 6% humidity. Store the pellets
away from sources of heat, and not in humid areas or explosive
environments.
It is recommended to use EN PLUS A1 certied pellets ac-
cording to ISO 17225-2.
3 QUALITATIVE FEATURES OF THE PELLET
Parameter U.M. EN PLUS-A1 EN PLUS-A2
Diameter (D) mm 6 (± 1) 6 (± 1)
Length (L) mm 31,5 ≤ L ≤40 31,5 ≤ L ≤40
Water content (M) %tq 1≤ 10 ≤ 10
Ashes (A) 3 2%ss 1≤ 0.7 ≤ 1.5
Mechanical durability (DU) %tq ≥ 97.5 ≥ 97.5
Fine particles (< 3.15 mm) %tq < 1 < 1
Additives %ss ≤ 2 ≤ 2
Net caloric value (Q) MJ/kg tq 16.5 ≤ Q ≤ 19 16.3 ≤ Q ≤ 19
Apparent density (BD) kg/m3≥ 600 ≥ 600
Nitrogen (N) %ss ≤ 0.3 ≤ 0.5
Sulphur (S) %ss ≤ 0.03 ≤ 0.03
Chlorine (CI) %ss ≤ 0.02 ≤ 0.02
Arsenic (As) %ss < 1 < 1
Cadmium (Cd) %ss ≤ 0.5 ≤ 0.5
Chromium (Cr) %ss ≤ 10 ≤ 10
Copper (Cu) mg/kg ≤ 10 ≤ 10
Lead (Pb) mg/kg ≤ 10 ≤ 10
Mercury (Hg) mg/kg ≤ 10 ≤ 10
Nickel (Ni) mg/kg ≤ 10 ≤ 10
Zinc (Zn) mg/kg ≤ 100 ≤ 100
Melting point of ashes (DT) 3°C ≥ 1200 ≥ 1100
1) tq = as is - ss = dry substance
2) determination at 550 °C
3) in this case the ashes must be produced at 815 °C

LUXOR
8
4 LUXOR 16 MAIN DIMENSIONS
KEY:
REF. Description
A1 System ow
A2 System return
C Pressure discharge valve
D Combustion air intake
E Flue gas exhaust
F Position of main power supply switch
GControl panel
H Water temperature probe
Iermostat
SYSTEM
RETURN
SYSTEM
FLOW

LUXOR
9
5 LUXOR 20  24 MAIN DIMENSIONS
KEY:
REF. Description
A1 System ow
A2 System return
C Pressure discharge valve
D Combustion air intake
E Flue gas exhaust
F Position of main power supply switch
GControl panel
H Water temperature probe
Iermostat
SYSTEM
RETURN
SYSTEM
FLOW
A2A1

LUXOR
10
6 LUXOR 28  33 MAIN DIMENSIONS
KEY:
REF. Description
A1 System ow
A2 System return
C Pressure discharge valve
D Combustion air intake
E Flue gas exhaust
F Position of main power supply switch
GControl panel
H Water temperature probe
Iermostat
A2A1
SYSTEM
RETURN
SYSTEM
FLOW