ApenGroup AermaxLine LRP-RAPID PRO Series Technical manual

1code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
ErP
2021
Compliant
EU/2016/2281
Use, Installation and Maintenance Manual
MODULATING WARM AIR HEATER LRP - RAPID PRO AND
CONDENSING WARM AIR HEATER LK - KONDENSA
EN
This manual cannot be copied in part or in full for disclosure to third parties without the prior written consent by Apen Group s.p.a.
TRANSLATION OF ORIGINAL Manual

2
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
VER. 01.2020
CODE SERIAL NUMBER
Dichiarazione di Conformità
Statement of Compliance
APEN GROUP S.p.A.
20060 Pessano con Bornago (MI)
Via Isonzo, 1
Tel [phone] r.a.
Fax [phone]
Internet: http://www.apengroup.com
Il presente documento dichiara che la macchina:
With this document we declare that the unit:
Modello:
Model:
Generatore d’aria calda LRP, LK, LKC
Warm Air Heater LRP, LK, LKC
è stata progettata e costruita in conformità con le disposizioni delle Direttive Comunitarie:
has been designed and manufactured in compliance with the prescriptions of the following EC Directives:
Regolamento Apparecchi a Gas 2016/426/UE
Gas Appliance Regulation 2016/426/UE
Direttiva compatibilità elettromagnetica 2014/30/UE
Electromagnetic Compatibility Directive 2014/30/UE
Direttiva Bassa Tensione 2014/35/UE
Low Voltage Directive 2014/35/UE
Regolamento ErP 2281/2016/CE
ErP Regulation 2281/2016/CE
Direttiva ROHS II 2011/65/UE e ROHS III 2015/863/UE
ROHS II 2011/65/UE and ROHS III 2015/863/UE Directives
è stata progettata e costruita in conformità con le norme:
has been designed and manufactured in compliance with the standards:
EN17082:2019
EN60335-1
EN60335-2-102
EN60730-1
EN 60068-2-1
EN 60068-2-2

2017/C 229/01
EN55014-1
EN55014-2
EN61000-3-2
EN61000-3-3
Organismo Notificato:
Notified body:
Kiwa Cermet Italia S.p.A
0476
PIN 0476CQ0451
La presente dichiarazione di conformità è rilasciata sotto la responsabilità esclusiva del fabbricante
This declaration of conformity is issued under the sole responsibility of the manufacturer
Pessano con Bornago
26/05/2020 Apen Group S.p.A.
Un Amministratore
Mariagiovanna Rigamonti

3code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
INDEX
SECTION 1. GENERAL CAUTIONS........................................................ 4
SECTION 2. SAFETY-RELATED WARNINGS ....................................... 4
2.1 Fuel................................................................................................ 4
2.2 Gas Leaks...................................................................................... 4
2.3 Power Supply................................................................................. 5
2.4 Use ................................................................................................ 5
2.5 Maintenance .................................................................................. 5
2.6 Transport and Handling ................................................................. 5
2.7 Unpacking...................................................................................... 6
2.8 Disposal and Demolition ................................................................ 6
2.9 Installation...................................................................................... 6
SECTION 3. TECHNICAL FEATURES ................................................... 7
3.1 Technical Data ............................................................................... 8
3.2 Technical data of centrifugal models.............................................. 10
3.3 Regulation (EU) 2016/2281 ........................................................... 12
3.4 Noise.............................................................................................. 13
 3.5 Airowperformance...................................................................... 14
3.6 Dimensions .................................................................................... 15
SECTION 4. USER INSTRUCTIONS ...................................................... 17
4.1 Operating cycle.............................................................................. 17
4.2 Interface Panel............................................................................... 17
4.3 Reset and Fault index 18
4.4 Set-up ............................................................................................ 19
4.5 Accessories ................................................................................... 19
SECTION 5. INSTALLATION INSTRUCTIONS ....................................... 21
5.1 General Installation Instructions .................................................... 21
5.2 Installation...................................................................................... 21
5.3 Condensate drain .......................................................................... 23
5.4 Connections to the Flue................................................................. 25
5.5 Electrical Connections ................................................................... 31
5.6 Modulation PCB Parameters ......................................................... 33
5.7 Analysis of Lockouts - Faults ......................................................... 37
SECTION 6. GAS CONNECTION ............................................................ 39
SECTION 7. SERVICING INSTRUCTIONS ............................................. 40
7.1 Country Table - Gas Category ...................................................... 40
7.2 Gas Settings Table......................................................................... 41
 7.3 ConguringwithLCDDisplay ........................................................ 47
 7.4 Startingupforthersttime............................................................ 50
7.5 Combustion Analysis ..................................................................... 50
7.6 Conversion to LPG ........................................................................ 51
7.7 Conversion to gas G25 - G25.1..................................................... 51
7.8 Conversion to gas G2.350 ............................................................. 52
7.9 Replacing the Gas valve................................................................ 52
7.10 Replacing STB and NTC ............................................................... 52
7.11 Replacing the modulation PCB...................................................... 53
SECTION 8. MAINTENANCE................................................................... 53
SECTION 9. WIRING DIAGRAMS ........................................................... 55
SECTION 10. LIST OF SPARE PARTS ..................................................... 56
10.1 Parts for the electrical panel .......................................................... 56
10.2 Parts for the burner unit ................................................................. 57

4
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
2. SAFETY-RELATED WARNINGS
This chapter describes the safety instructions to be followed
by machine operators.
2.1. Fuel
Before starting up the heater, make sure that:
• the gas mains supply data are compatible with the data
stated on the nameplate;
• thecombustionairintakeducts(whentted)andtheue
gaspipesareonlythosespeciedbythemanufacturer;
• the combustion air is supplied in such a way as to avoid
even partial obstructions of the intake grille (caused by
leaves etc.);
• the gas seal of the feeding system has been tested and
approved in compliance with the applicable standards;
• the heater is supplied with the same type of fuel it has
been designed for;
• the system is correctly sized for such ow rate and is
tted with all safety and monitoring devices required by
applicable standards;
• the inside of the gas pipes and air distribution ducts for
ducted heaters have been thoroughly cleaned;
• thefuelowrateissuitableforthepowerrequiredbythe
heater;
• thefuelsupplypressureisbetweenthe rangespecied
on the nameplate.
When connecting gas supply pipe to gas valve, do not
tighten excessively in order to avoid damaging sealing
gaskets. (See Par. 6 “Gas Connection”)
2.2. Gas Leaks
If you smell gas:
• do not operate electrical switches, the telephone or any other
objectordevicethatcancausesparksornakedames;
• immediatelyopendoorsandwindowstocreateanairow
to vent the gas out of the room;
• close the gas valves;
• switch o󰀨 the power supply via a disconnector outside
the unit;
• move away from the unit
• call for qualied sta󰀨.
• call the Fire Brigade.
NOTE: IT is strictly prohibited to supply gas to the circuit
with pressures higher than 60 mbar. Such pressures
could cause the valve to break.
1. GENERAL CAUTIONS
This manual is an integral part of the product and must always
accompany it.
Shouldtheequipmentbesoldorpassedontosomeoneelse,
alwaysmakesurethatthismanualissuppliedwiththeequipment
for future reference by the new owner and/or installer.
The manufacturer shall not be held civilly or criminally respon-
sible for injuries to people or animals or damages to things
caused by incorrect installation, calibration and maintenance
or by failure to follow the instructions contained in this manual
orbyoperationscarriedoutbyunqualiedsta󰀨.
This product must be used only for the applications for which
it was designed or approved. Any other use must be regarded
as hazardous. Improper use may impair the operation, service
life and safety of the unit.
Duringtheinstallation,operationandmaintenanceoftheequip-
ment described in this manual, the user must always strictly
follow the instructions given in all the chapters of this use and
instruction manual.
The condensing warm air heater must be installed in
compliance with current regulations, according to the
manufacturer's instructions and by qualied sta󰀨, tech-
nically specialised in the heating eld.
Firststart-up,conversionbetweendi󰀨erenttypesofgasand
maintenance operations must be carried out only by suitably
qualiedsta󰀨ofTechnicalServiceCentrescomplyingwiththe
requisitesrequiredbytheregulationsinforceintheircountry
of competence.
Maintenance must be carried out with methods and timescales
in compliance with the regulations in force in the country where
the appliance is installed.

5code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
HG0030.00_IM 001
If the heater is to be put out of service, in addition to the above
operations, potential sources of hazard on the unit must be
disabled.
It is strictly forbidden to obstruct the Venturi pipe inlet, located
on the burner-fan unit, with your hands or with any other objects.
Anyobstructioncouldcauseabackrefromthepremixedburner.
2.3. Power supply
Theheatermustbecorrectlyconnectedtoane󰀨ectiveearthing
system, made in compliance with current regulations (IEC 64-8,
applies to Italy only).
Cautions
• Checkthee󰀩ciencyoftheearthingsystemand,ifrequired,
calloutaqualiedengineer.
• Check that the mains power supply is the same as the
power input stated on the equipment nameplate and in
this manual.
• Do not mistake the neutral for the live wire.
• The heater can be connected to the mains power supply
with a plug-socket only if the latter does not allow live and
neutral to be swapped.
• The electrical system and, more specically, the cable
section, must be suitable for the equipment maximum
power input, shown on the nameplate and in this manual.
• Do not pull electric cables and keep them away from heat
sources.
NOTE: IT is compulsory to install, upstream of the power
cable, a fused multipole switch with contact opening
wider than 3mm. The switch must be visible, accessible
and less than 3m away from the control board. All elec-
trical operations (installation and maintenance) must be
carried out by qualied sta󰀨.
2.4. Use
Do not allow children or inexperienced people to use any elec-
tricallypoweredequipment.
The following instructions must be followed:
• donottouchtheequipmentwithwetordamppartsofyour
body and/or with bare feet;
• donotleavetheequipmentexposedtotheelements(rain,
sunetc...)unlessitisadequatelyprotected;
• donotusethegaspipestoearthelectricalequipment;
• donottouchthehotpartsoftheheater,suchastheue
gas duct;
• donotwettheheaterwithwaterorotheruids;
• donotplaceanyobjectovertheequipment;
• do not touch the moving parts of the heater.
2.5. Maintenance
Maintenance operations and combustion inspections
must be carried out in compliance with current standards.
Before carrying out any cleaning and maintenance operations,
isolate the boiler from the mains power supply using the switch
located on the electrical system and/or on the shut-out devices.
Iftheheaterisfaultyand/orincorrectlyoperating,switchito󰀨
and do not attempt to repair it yourself, but contact our local
Technical Service Centre.
All repairs must be carried out by using genuine spare parts.
Failure to comply with the above instructions could compromise
thesafetyoftheequipmentandinvalidatethewarranty.
If the equipment is not used for long periods, shut the gas
supplyo󰀨throughthegasstopcockanddisconnectitfromthe
power supply.
DONOTCOVERIT WITHYOUR HAND OROTHEROBJECTS!
2.6. Transport and Handling
The heater is delivered fastened to a pallet and covered with a
suitably secured cardboard box.
Unload the heater from the truck and move it to the site of
installation by using means of transport suitable for the shape
of the load and for the weight.
If the unit is stored at the customer’s premises, make sure a
suitable place is selected, sheltered from rain and from excessive
humidity, for the shortest possible time.
Any lifting and transport operations must be carried out by
skilledsta󰀨,adequatelytrainedandinformedontheworking
procedures and safety regulations.
Oncetheequipmentismovedtothecorrectposition,theun-
packing operation can be started.

6
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
2.7. Unpacking
The unpacking operation must be carried out by using suitable
toolsorsafetydeviceswhererequired.Recoveredpackaging
materials must be separated and disposed of according to ap-
plicable regulations in the country of use. While unpacking the
unit, check that the unit and all its parts have not been damaged
during transport and match the order. If damages have occurred
or parts are found to be missing, immediately contact the sup-
plier. The manufacturer is not liable for any damages occurred
during transport, handling and unloading.
Packing material disposal
The packing safeguards the product from transport damages.All
the materials used are environmentally friendly and recyclable.
Please contact a specialised distributor or your local adminis-
tration for more information on waste disposal.
2.8. Disposal and Demolition
Should the machine be dismantled or demolished, the person
in charge with the operation shall proceed as follows:
Disposal of end-of-life products
ThisequipmentismarkedincompliancewithEu-
ropean Directive 2012/19/EU on waste electrical
andelectronicequipment(WEEE).ThisDirective
denestherulesforcollectingandrecyclingwaste
equipmentsthroughouttheentireterritoryofthe
European Union.
WEEEcontainsbothpollutants(thatcannegativelya󰀨ectthe
environment) and raw materials (that can be reused). IT is there-
fore necessary to subject WEEE to appropriate treatments, in
order to remove and safely dispose of pollutants and to extract
and recycle raw materials. IT is forbidden to dispose of WEEE
as unsorted waste. These operations facilitate recovery and re-
cycling of the materials, thus reducing the environmental impact.
NOTE: All materials recovered will be processed and
disposed of according to what provided for by the laws
in force in the country of use and/or according to the
standards indicated in the safety sheets of the chemicals.
INFORMATION FOR DISPOSAL valid in ITALY (Legislative
Decree 49/2014)
The heaters and relating accessories are considered “profession-
alWEEE-wasteelectricalandelectronicequipment”.According
to the legislation in force in Italy, professional WEEE must be
sent to treatment plants suitable for these types of waste. Please
contact the Apen Group for end-of-life products so as to obtain
all the information necessary for their correct waste disposal,
which is possible thanks to the Collective System (Union) to
which the company is associated. Please remember that product
disposal without complying with the mode described above is a
violation liable to administrative and penal sanctions.
INFORMATION FOR DISPOSAL valid abroad (EU COUN-
TRIES except Italy).
The European Directive 2012/19/EC shall be implemented in
every EU member state. There may be di󰀨erent application
modalities for the various member states, even in terms of
modality for waste disposal depending on its type (House-hold
or Professional WEEE). To this regard at the end of the life of
the product, we highly recommend you call the distributor or
installer so as to obtain information on the correct disposal, in
compliance with the existing laws of the installation country.
2.9. Installation
The LK and LRP heat exchanger must be used in the following
conditions:
• The fuel used must have a sulphur content according to
the European standard, namely: maximum peak, for short
periods, 150 mg/m3, annual average lower than 30 mg/m3;
• Combustion air must not contain chlorine, ammonia, alkalis
or sulphides; for example, installation near swimming pools
orlaundriesexposestheunittothee󰀨ectsofsuchagents;
if this is the case it is necessary to take air from the outside.

7code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
HG0140.00_IM_001
3. TECHNICAL FEATURES
The LRP-RAPID PRO and LK-KONDENSA series modulating
warm air heaters have been designed to heat industrial and
commercial environments.
The heater PCB continually modulates the heat output between
the minimum and maximum power, according to heating re-
quirements.
The premixing and modulating technology allows the heater to
achievee󰀩ciencyabove108%oftheL.C.V.
The heater can operate independently and can be started up
by simply connecting it to the mains power supply and to the
mains gas supply.
The heat output of these heaters ranges between 5 and 97 kW.
The units can be controlled in three ways:
• with an ON-OFF control;
• externally via modbus (through Smart Web or Easy);
• proportionally, with a 0-10 Vdc external control.
Theheatexchangercomplieswiththemanufacturingrequire-
ments for condensing warm air heaters, according to prevailing
standards (EN17082:2019).
The combustion chamber and the surfaces in contact with
condensation (such as the pipe bundle and exhaust hood),
are made of AISI 441, in order to provide high resistance to
condensation and temperature.
The following table shows the conversion of stainless steels used:
USA-AIS EN-No. COMPOSITION
AISI 441 1.4509 X2 CrTiNb 18
The innovative design and large heat exchanging surface of
the combustion chamber and of the pipes ensure optimum
e󰀩ciencyanddurability.
The burner is made entirely of stainless steel with special me-
chanical solutions to ensure optimal reliability and performance
levels, as well as high thermal and mechanical resistance.
The control located on the front panel allows the service centre
to check and view the working phases and identify any faults
that may have occurred.
Inherent Safety
Thee󰀩ciencyincreaseatminimumpowerisachievedbyusing
asophisticatedair/gasmixingtechniqueandbyregulatingat
thesametimethecombustionairowandthefuelgasow.
This technology increases the heater safety as the gas valve
suppliesthefuelaccordingtotheairow.Unlikeatmospheric
burners, the CO2content remains constant throughout the heater
operatingrange,allowingtheheatertoincreaseitse󰀩ciency
when the heat output reduces.
If there is no combustion air, the valve will not supply gas; if
thecombustionairowreduces, thevalve willautomatically
reducethegasowyetwillkeepitscombustionparameters
at optimal levels.
Low emissions
The premixed burner, in combination with the air/gas valve,
ensures"clean"e󰀩cientcombustionhavingverylowemissions.
ATTENTION: Before switching the heater on, open the
louvers by at least 45°.

8
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
Model* LRP018 LRP028 LRP035 LRP045 LRP055 LRP075 LRP102
Typeofequipment B23 - B23P - C13 - C33 - C43 - C53 - C63
EC approval PIN. 0476CQ0451
NOx class [EN1020:2009] Val 5
Type of fuel Gaseous
Heater Performance
min max min max min max min max min max min max min max
Burner heat output (Hi) kW 10.1 16.5 16 27 20.2 34.8 26 44 29.8 52.2 44.4 73.5 51.8 100
Useful heat output [Pmin, Prated]* kW 9.7 15.1 15.4 24.6 19.6 32.4 25.0 40.6 28.8 48.1 42.5 67.5 49.9 91.1
HiE󰀩ciency(N.C.V.)[ƞpl, ƞnom]* %95.8 91.8 96.3 91.2 96.8 93.1 96.3 92.3 96.8 92.1 95.8 91.8 96.4 91.1
Hse󰀩ciency(G.C.V.)[ƞpl, ƞnom]* %86.2 82.6 86.7 82.1 87.1 83.8 86.7 83.1 87.1 82.9 86.2 82.6 86.8 82.0
Flue losses with burner on (Hi) %4.2 8.2 3.7 8.8 3.2 6.9 3.7 7.7 3.2 7.9 4.2 8.2 3.6 8.9
Fluelosseswithburnero󰀨(Hi) % <0,1 <0,1 <0,1 <0,1 <0,1 <0,1 <0,1
Flue gas emissions
Carbonmonoxide-CO-(0%ofO2) (1) ppm <5 <5 <5 <5 <5 <5 <5
Emissions of nitrogen oxides - NOx*
(0%ofO2) (Hi) (2)
51 mg/kWh -
29 ppm
55 mg/kWh -
31 ppm
42 mg/kWh -
24 ppm
55 mg/kWh -
31 ppm
46 mg/kWh -
26 ppm
60 mg/kWh -
34 ppm
67 mg/kWh -
38 ppm
Emissions of nitrogen oxides - NOx*
(0%ofO2) (Hs) (7)
46 mg/kWh -
26 ppm
49 mg/kWh -
28 ppm
38 mg/kWh -
21 ppm
49 mg/kWh -
28 ppm
42 mg/kWh -
23 ppm
54 mg/kWh -
31 ppm
60 mg/kWh -
34 ppm
Pressureavailableattheue Pa 80 100 120 120 130 140 140
Flue gas temperature, CO2contentandmaximumuegasowrate:seegastablesonpage38andonthefollowing
pages
Electrical Characteristics
Supply voltage V 230 Vac - 50 Hz single-phase
Rated power kW 0.1 0.143 0.15 0.197 0.13 0.184 0.25 0.32 0.268 0.33 0.454 0.493 0.49 0.582
Protection Rating IP IP 20
Operating Temperatures °C from-15°Cto+40°C-forlowertemperatures,aburnerhousingheatingkitisrequired(8)
Storage Temperatures °C -25°C to +60°C
Connections
Ø gas connection (3) GAS UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4" (4)
Intake/exhaust pipes Ø mm 80/80 80/80 80/80 80/80 80/80 80/80 100/100 (5)
Air ow rate
Airowrate(15°C) m3/h 2000 2700 3100 4300 4500 7800 7900
Air temperature increase °C 13.9 21.7 16.4 26.1 18.1 30.0 16.7 27.1 18.4 30.6 15.6 24.8 18.1 33.5
Number and diameter of fans (no. of poles) 1 X Ø350 (6P) 1 X Ø350(4P) 1 X Ø450(6P) 1 X Ø450(4P) 1 X Ø450(4P) 2 X Ø400 (4P) 2 X Ø400 (4P)
Fans speed rpm 920 1370 970 1370 1370 1370 1370
Sound pressure (Lp) (6) dB(A) 34 44 40 49 49 51 51
Weight
Net Weight kg 58 58 68 70 78 102 123
Weight with packaging kg 73 73 85 88 96 126 149
3.1. Technical Data
NOTES:
* Symbol in compliance with Reg.EU/2281/2016.
(1) Value referred to cat. H (G20)
(2) WeightedvaluetoEN17082ref.tocat.H(G20),referredtonetcaloric
value (Hi, N.C.V).
(3) The gas line must be dimensioned according to the length of the routing
and not to the heater input diameter.
 ForcountriesrequiringanISOconnectiondi󰀨erentfromtheoneshown,an
adaptor will be supplied.
(4) For LRP102 models, the minimum gas supply duct diameter must be UNI/
ISO 228/1- G 1".
(5) Ø100/100 obtained by using adaptors supplied as standard.
(6) Measured at a distance of 6 m from the machine.
(7) WeightedvaluetoEN17082ref.tocat.H(G20),referredtogrosscaloric
value (Hs, G.C.V).
(8) If the burner housing heater kit is installed, add 105 W (230V) to
the rated power value on the nameplate.

9code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
Model LK020 LK034 LK045 LK065 LK080 LK105
Typeofequipment B23 - B23P - C13 - C33 - C43 - C53 - C63
EC approval PIN. 0476CQ0451
NOx class [EN1020:2009] Val 5
Type of fuel Gaseous
Heater Performance
min max min max min max min max min max min max
Burner heat output (Hi) kW 4.75 19.00* 7.60 34.85 8.50 42.00 12.40 65.00 16.40 82.00 21.00 100.00
Useful heat output [Pmin, Prated]* kW 4.97 18.18 8.13 33.56 8.97 40.45 13.40 62.93 17.77 80.03 22.77 97.15
HiE󰀩ciency(N.C.V.)[ƞpl, ƞnom]* %104.63 95.68* 106.97 96.30 105.50 96.30 108.06 96.82 108.35 97.60 108.40 97.15
Hse󰀩ciency(G.C.V.)[ƞpl, ƞnom]* %94.26 86.20 96.37 86.76 95.07 86.76 97.36 87.22 97.62 87.93 97.68 87.52
Flue losses with burner on (Hi) %0.4 4.3 0.6 3.7 0.5 3.7 0.2 3.2 0.3 2.4 0.2 2.8
Fluelosseswithburnero󰀨(Hi) % <0,1 <0,1 <0,1 <0,1 <0,1 <0,1
Max. condensation (1) l/h 0.4 0.9 1.1 2.1 3.3 2.7
Flue gas emissions
Carbonmonoxide-CO-(0%ofO2) (2) ppm < 5 < 5 < 5 < 5 < 5 < 5
Emissions of nitrogen oxides - NOx**
(0%ofO2) (Hi) (3)
29 mg/kWh -
16 ppm
51 mg/kWh -
29 ppm
36 mg/kWh -
20 ppm
45 mg/kWh -
25 ppm
31 mg/kWh -
18 ppm
40 mg/kWh -
23 ppm
Emissions of nitrogen oxides - NOx**
(0%ofO2) (Hs) (8)
26 mg/kWh -
15 ppm
46 mg/kWh -
26 ppm
32 mg/kWh -
18 ppm
41 mg/kWh -
23 ppm
28 mg/kWh -
16 ppm
36 mg/kWh -
20 ppm
Pressureavailableattheue Pa 80 90 100 120 120 120
Flue gas temperature, CO2contentandmaximumuegasowrate:seegastablesonpage38andonthe
following pages
Electrical Characteristics
Supply voltage V 230 Vac - 50 Hz single-phase
Rated power kW 0.147 0.180 0.270 0.310 0.280 0.310 0.420 0.510 0.500 0.613 0.650 0.750
Protection Rating IP IP 20
Operating Temperatures °C from-15°Cto+40°C-forlowertemperatures,aburnerhousingheatingkitisrequired(9)
Storage Temperatures °C -25°C to +60°C
Connections
Ø gas connection (4) GAS UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4"
UNI/ISO 228/1-
G 3/4" (5)
UNI/ISO 228/1-
G 3/4" (5)
Intake/exhaust pipes Ø mm 80/80 80/80 80/80 80/80 100/100 (6) 100/100 (6)
Air ow rate
Airowrate(15°C) m3/h 2700 4300 4500 7800 9000 11100
Air temperature increase °C 5.28 19.30 5.42 22.37 5.73 25.74 4.92 23.13 5.66 25.49 5.89 25.09
Number and diameter of fans 1 x Ø350 1 x Ø 450 1 x Ø450 2 x Ø400 2 x Ø450 3 x Ø400
Fans speed rpm 1370 1370 1370 1370 1370 1370
Sound pressure (Lp) (7) dB(A) 44 49 49 51 52 54
Weight
Net Weight kg 58 72 79 98 129 145
Weight with packaging kg 73 90 97 122 155 173
NOTES:
* Symbol in compliance with Reg.EU/2281/2016.
(1) Max.condensationproducedacquiredfromtestingat30%Qn.
(2) Value referred to cat. H (G20)
(3) WeightedvaluetoEN17082ref.tocat.H(G20),referredtonetcaloric
value (Hi, N.C.V).
(4) The gas line must be dimensioned according to the length of the routing
and not to the heater input diameter.
 ForcountriesrequiringanISOconnectiondi󰀨erentfromtheoneshown,
an adaptor will be supplied.
(5) For the LK080 and LK105 models, the minimum gas supply duct diameter
must be UNI/ISO 228/1- G 1".
(6) Ø100/100 obtained by using adaptors supplied as standard.
(7) Measured at a distance of 6 m from the machine.
(8) WeightedvaluetoEN17082ref.tocat.H(G20),referredtogrosscaloric
value (Hs, G.C.V).
(9) If the burner housing heater kit is installed, add 105 W (230V) to
the rated power value on the nameplate.

10
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
Model* LKC034 LKC045 LKC065
Typeofequipment B23 - B23P - C13 - C33 - C43 - C53 - C63
EC approval PIN. 0476CQ0451
NOx class [EN1020:2009] Val 4
Type of fuel Gaseous
Heater Performance
See LK034 See LK045 See LK065
Flue gas emissions
See LK034 See LK045 See LK065
Electrical Characteristics
See LK034 See LK045 See LK065
Connections
See LK034 See LK045 See LK065
Air ow rate
Airowrate(15°C) m3/h 3050 4650 5650
Available pressure Pa 140 140 140
Rated power kW 1.120 1.260 2.080
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
0,0
10,0
20,0
30,0
40,0
50,0
60,0
0
50
100
150
200
250
300
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
Incremento temperatura aria [°C]
Pressione disponibile [Pa]
Portata Aria [m3/h]
3.2. Technical data of centrifugal models
Graph "Air ow rate - pressure drop" of centrifugal heaters
ThegraphshowstheairowratecurvesaccordingtothepressurelossoftheLKCcentrifugalheatersandtheairtemperature
increasecurves(ΔT)basedontheowrate(dashedcurves)forthesamemodels.
Airowrate[m3/h]
Available pressure [Pa]
Air temperature increase [°C]

11 code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
0,0
10,0
20,0
30,0
40,0
50,0
60,0
0
50
100
150
200
250
300
2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
Incremento temperatura aria [°C]
Pressione disponibile [Pa]
Portata Aria [m3/h]
Model LKC045
Available pressure: 100 Pa
Air ow rate: 4800 m3/h
ΔT: 28°C
Following is a graph reading example:

12
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
Model
Capacity Usefule󰀩ciency Other elements Consumption of
Power supply
Rated heating capacity Minimum capacity Usefule󰀩ciencyatrated heating capacity Usefule󰀩ciency atmini- mum capacity Casing loss factor Ignition burner consump- tion Emissions of nitrogen oxides Outpute󰀩ciency Seasonal space heating energye󰀩ciency At rated heating capacity At minimum capacity In stand-by mode
Prated,h Pmin ƞnom ƞpl Fenv Pign NOxƞs,ow ƞs,h elmax elmin elsb
kW kW % % % kW
mg/
kWh
ref.
GCV
% % kW kW kW
LRP018 15.1 9.7 82.6 86.2 0.0 0.0 46 94.9 78.3 0.063 0.024 0.005
LRP028 24.6 15.4 82.1 86.7 0.0 0.0 49 93.8 78.1 0.069 0.023 0.005
LRP035 31.9 19.6 83.8 87.1 0.0 0.0 38 93.1 78.2 0.074 0.023 0.005
LRP045 40.2 25.0 83.1 86.7 0.0 0.0 49 93.7 78.3 0.074 0.026 0.005
LRP055 48.1 28.9 82.9 87.1 0.0 0.0 42 92.9 78.1 0.102 0.028 0.005
LRP075 67.5 42.5 82.6 86.2 0.0 0.0 54 94.1 78.2 0.112 0.033 0.005
LRP102 91.1 49.9 82.0 86.8 0.0 0.0 60 92.9 78.1 0.121 0.030 0.005
LK020 18.2 5.0 86.1 94.3 0.0 0.0 26 97.5 90.4 0.045 0.011 0.005
LK034 33.6 8.1 86.7 96.3 0.0 0.0 46 97.3 92.1 0.074 0.011 0.005
LK045 40.6 9.0 87.0 95.0 0.0 0.0 32 97 90.7 0.082 0.024 0.005
LK065 62.9 13.4 87.2 97.3 0.0 0.0 41 97.4 93.2 0.097 0.015 0.005
LK080 80.0 17.8 87.9 97.6 0.0 0.0 28 97.1 93.1 0.123 0.040 0.005
LK105 97.2 22.8 87.5 97.6 0.0 0.0 36 97.0 93.1 0.130 0.020 0.005
LKC034 33.6 8.1 86.7 96.3 0.0 0.0 46 96.1 86.2 0.074 0.011 0.005
LKC045 40.6 9.0 87.0 95.0 0.0 0.0 32 97.1 86.0 0.082 0.024 0.005
LKC065 62.9 13.4 87.2 97.3 0.0 0.0 41 96.3 87.4 0.097 0.015 0.005
3.3. REGULATION (EU) 2016/2281
Product Information in accordance with Annex 2 point 5 a)
Model: See table
Warm air heaters B1 [yes/no]: No
Warm air heaters C2 [yes/no]: No
Warm air heaters C2 [yes/no]: No
Type of fuel
[gaseous/liquid/electricity]: Gaseous

13 code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
44,2
47,0
57,4
53,8 54,5
52,8
46,1
61,4
40
45
50
55
60
65
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz LwA
Frequency[Hzinoctavebands]
LRP018
Sound Pressure Lw [dB(A)]
53,1
58,2
61,4 61,4 60,0
53,4
42,7
66,9
40
45
50
55
60
65
70
75
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz LwA
Sound Pressure Lw [dB(A)]
Frequency[Hzinoctavebands]
LRP035
64,7 65,2
68,2 69,6 70,1
66,2
55,4
75,7
50
55
60
65
70
75
80
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz LwA
Sound Pressure Lw [dB(A)]
Frequency[Hzinoctavebands]
LRP045 - LRP055 - LK034 - LK045
62,5
69,2
71,9 72,8 73,3
69,9
59,6
78,8
50
55
60
65
70
75
80
85
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz LwA
Sound Pressure Lw [dB(A)]
Frequency[Hzinoctavebands]
LRP102 - LK080
59,7
69,8 71,4 72,3 72,7
68,5
59,4
78,3
50
55
60
65
70
75
80
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz LwA
Sound Pressure Lw [dB(A)]
Frequency[Hzinoctavebands]
LRP075 - LK065
62,7
72,8 74,4 75,3 75,7
71,5
62,4
81,3
50
55
60
65
70
75
80
85
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz LwA
Sound Pressure Lw [dB(A)]
Frequency[Hzinoctavebands]
LK105
58,7
62,2 61,9 63,3
65,1 65,2
59,6
71,3
50
55
60
65
70
75
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz LwA
Sound Pressure Lw [dB(A)]
Frequency[Hzinoctavebands]
LRP028 - LK020
3.4. Noise
Sound power
The sound power of a source (energy emitted per unit time) is a
characteristic of the same source and does not depend on the
environment in which the sound is emitted: this measurement
allowscomparingthenoiseofdi󰀨erentmachines.
The sound power of the LK and LRP warm air heaters has been
measured in a reverberation room according to the following
standard:
ISO 3741 Acustica - Determinazione dei livelli di potenza
sonora e dei livelli di energia sonora delle sorgenti di rumore
mediante misurazione della pressione sonora - Metodi di
laboratorio in camere riverberanti
ISO 3741 Acoustics - Determination of sound power levels and
sound energy levels of noise sources using sound pressure -
Precision methods for reverberation test rooms
APEN GROUP has chosen to use one-speed fans favouring the
airowratetoincreasethesystemoutput,decreasethestrati-
cationintheroomandthusthetimerequiredtoheattheroom.

14
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
0
5
10
15
20
25
30
0,600,650,700,750,800,850,900,951,00
0,00
0,50
1,00
1,50
2,00
2,50
3,00
0246810 12 14 16 18 20 22 24 26 28 30 32
LK020 - LRP028 - LRP035
LK034 - LK045 - LRP045 - LRP055
LRP102
LK065 - LK080 - LRP075
LRP018
LK105
0.20
3.5. Air ow performance
Theairowrange,orairthrow,isthedistancereachedbytheairjetbeforeitsspeeddecreasesandequalsthereferencespeed,
assumed to be 0.2 m/s.
Thethrowdependsonthespeedoftheairleavingtheheater,whichinturndependsontheairowrateandonthesectionof
the heater air passage.
Below is a graph showing the air speed as a function of the distance from the heater outlet. The curves shown in the graph refer
toisothermalairthrowconditions(i.e.withthewarmairheaterswitchedo󰀨andthereforeatconstantairtemperatureoverthe
entiresupplysurface)andwithhorizontalandparallelsupplyns.
Innon-isothermalconditions(warmairheateroperating)theairthrowisreducedproportionallytothetemperaturedi󰀨erence
betweenthewarmsupplyairandtheroomair("airtemperatureincrease”ΔTvalues-seetable"Technicaldata",paragraph3.1).
Forexample,withaΔTof15K,thethrowisabout83%oftheisothermalthrow.
Thecorrectedthrowvalue(Lc)onthebasisoftheΔTisasfollows:  Lc = L * K
Delta T (°C)
Correction factor K [-]
Throw correction factor
Air Speed (m/s)
Distance L [m]
Air throw

15 code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
145
HG0140.00_C2_001
HG0140.00_C2_001
HG0140.00_C2_001
HG0140.00_C2_001
IS ID
HB
L
108
LB
62
H
730
515
B
125
TO
A
S
F
AO
A
GV
GO
TV AV
S
F
G
B
H
42
125
D
HG0140.00_C2_007
HB
LB
H1 H2
L
HG0140.00_C2_007
S
F
A
AO
TO
HG0140.00_C2_007
S
GO
GV
G
AV
TV
A
F
HG0140.00_C2_007
B
H
42
125
D
HG0140.00_C2_007
HB
LB
H1 H2
L
HG0140.00_C2_007
S
F
A
AO
TO
HG0140.00_C2_007
S
GO
GV
G
AV
TV
A
F
HG0140.00_C2_007
Mod.
LRP and LK
Overall dimensions Louver Shelf Supply GAS Packaging
BBHHLL D HBHB LBLB H1 H2 ISIS IDID ØGØG GOGO GVGV BiBi LiLi HiHi HbiHbi
LRP018,LRP028,
LK020
500
690
795
520
490 395 400
3/4''
180 255
815
870
850
118
LRP035,LRP045,
LK034 985 680 490 495 1065
LRP055,
LK045 765 595 920
LRP075,
LK065 1310 1010 605 710 1395
LRP102,
LK080 845
1515
675
1180 720 795
210 275
1595
1040
LK105 1740 1410 805 935 1820
LKC034 690
985
425 500
700
74 118
180 255
1165 1065
850
112
LKC045
765
490
600 61 105 920
LKC065 1310 420 1000 1115 1400
3.6. Dimensions

16
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
Bi
Li
Hbi
Hi
HG0130.00 A 041
145
HG0140.00_C2_001
HG0140.00_C2_001
HG0140.00_C2_001
HG0140.00_C2_001
IS ID
HB
L
108
LB
62
H
730
515
B
125
TO
A
S
F
AO
A
GV
GO
TV AV
S
F
G
Mod.
LRP and LK Horizontal exhausts (STD)
AAFFAVAV TVTV SS
LRP018,
LRP028,
LK020
80 80
430
120 155
LRP035,
LRP045,
LK034
LRP055,
LK045 505
LRP075,
LK065
LRP102,
LK080 100* 100* 560 140 185
LK105
* Obtained by using the adaptors supplied as standard
Mod.
LRP and LK
Vertical drains (OPT.)
AAFFAOAO TOTO SS
LRP018,
LRP028,
LK020
80 80
145
120 155
LRP035,
LRP045,
LK034
LRP055,
LK045
LRP075,
LK065
LRP102,
LK080 100* 100* 140 185
LK105
* Obtained by using the adaptors supplied as standard

17 code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
4. USER'S INSTRUCTIONS
4.1. Operating Cycle
The wall mounted LRP and LK heaters operation is fully au-
tomatic;theyareequippedwithelectronicequipmentwithself
check facility that manages all the burner control and monitoring
operations and with a microprocessor based electronic PCB
that controls the heat output regulation.
The heat demand depends on the parameter d0 setting of the
heater PCB:
• d0=2: input ID2-IDC2 closed and NTC1<ST1;
• d0=5: input ID2-IDC2 closed and input 0-10Vdc>Von;
• d0=7: input ID2-IDC2 closed and control from Modbus ON.
The boiler is switched on when the following two conditions
are met:
• the heater is powered on and has not been locked out;
• when the contact is closed on terminals ID2/IDC2 of the
heater PCB.
In these conditions the burner fan will be immediately started;
afterpre-cleaningtimehaselapsed,theamewilllightupwith
anignitionpowerequaltoapproximately30%ofitsmaximum
output.Oncetheamestabilisingtimehasexpired,theburner
will start to modulate its heat output according to the supply air
temperature.
Ifthere isno ameduring theignition phase,the heaterwill
makeother4ignitionattempts;atthefthattempt,ifignitionis
not successful, the heater will be locked out.
The heater will be switched o󰀨 when the ID2/IDC2 contact
opens on the terminal box; disconnecting the power supply is
prohibited, except for emergencies because, when the heater
isswitchedo󰀨,thefumeextractorfanwillcontinuetoworkfor
approximately 90 seconds to clean up the combustion chamber
(combustion chamber post-cleaning phase).
Failure to perform the post-cooling operations on the exchanger
will cause:
• a shorter lifetime of the exchanger and the guarantee will
be null and void;
• the safety thermostat to operate and the associated re-
quirementtomanuallyresettheheater.
If, during the cooling cycle, there is a new demand for heat, the
modulation PCB will wait for the cooling fans to shut down and
then reset the counters and start a new cycle.
Parameter d6 of the modulation PCB, which can be programmed
from 0 to 256 seconds, controls the minimum interval between
thetimetheequipmentisswitchedo󰀨andrestarted.
IMPORTANT: Powering o󰀨 the machine before complet-
ing the cooling cycle and/or with machine set to ON is
strictly prohibited. Failure to follow these instructions
shall invalidate the warranty and cause early deterioration
of the heat exchanger.
4.2. Interface Panel
TheLRPandLKheatersarettedasstandardwithamultifunction
LCD panel located on the front panel of the suspended heater,
whichisusedtocontrol,congureanddiagnosealloperating
parametersoftheequipment.
This panel cannot be remotely controlled.
Thepanelisttedwithared3-digitLCDdisplayandwithfour
functionkeys:↑,↓,ESCand ENTER ; the display allows the
user to display the heater operating mode and its Faults.
It also allows the service centre to change the main operating
parameters.
Changingparametersrequiresapassword.
Viewing the machine status
The machine status is shown on the display by the following
wordings:
rdy the machine is on without burner flame,
it is waiting for the ON control and/or the heat demand
from the thermostat;
On themachineisonwithburnerameorisintheignition
phase;
OFF themachineisturnedo󰀨bythecontrolontheLCD.
Any heat demands will be ignored.
To light the burner, the LCD must show the wording
"heater ON";
Fxx Fault detected.
During normal operation, the display will show the wording On
if the burner is on; rdy whentheboilerisbeingswitchedo󰀨or
the room temperature has been reached.
Air the EST operation has been selected under the
FUN menu; set FUN to ON or OFF;
Axx LRP or LK heater address;
If the heater has an address other than Ø, the display
will show, alternating it with the operation in progress,
the address assigned to the heater.
In the event of communication problems between CPU-SMART
PCB and LCD panel, the word CPUwillashonthedisplayif
theproblemiscausedbytheCPU;threeashingdotswillbe
displayed if the problem is caused by the display PCB. If needs
be, check that the display and the PCB are correctly connected
and that the small cable RJ11 is securely held in the connector.
Navigating the menu
Themenuhasthreelevels.Therstisaccessiblewithoutentering
apassword,thesecondandthirdrequireenteringsecondlevel
passwords to change the parameters.
If the LRP or LK heater PCB is connected to a Smart Web or
Easy,andthereforewithanaddressdi󰀨erentfromØ,allpa-
rameterscanbeviewedandmodiedfromtheremotecontrol.
Theservicecentrerequiringtoworkonsuchparametersmust
enter the relevant level password.
Usethearrowstoscrollthemenus:↑(uparrow)and↓(down
arrow). Press ENTER to select the menu, and again to select the
parameter.Changetheparameterwiththearrowsandconrm
the change by pressing ENTER .
To exit the parameter or menu, press ESC. If you exit the pro-
gramming function, after about 10 minutes the program will exit
the menu and go back to the "machine status" display.
Tochangetheparameter,pressthearrowkeys:pressing↑(up
arrow)increasestheparameterby1,pressing↓(downarrow)
reduces it by 1. When the arrows keys are pressed for at least
three seconds, the parameter scrolling speed is increased.

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LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
Toconrmachangeinparameters,press ENTER for at least 3
seconds. A change in the parameter is indicate by the display
ashing.
All submenus can be scrolled from the bottom to the top, and
they start over when the end of the menu is reached.
First level menus
Thefollowingmenusareavailableontherstlevel:
machine status provides information about its operation (ex.
rdy,
ON, OFF);
FUN from FUN it is possible to select the function
ON, OFF or SUM;
REG this menu allows the user to force the burner
to the minimum or the maxi-
mum for combustion t e s t s ;
it automatically returns to the previous position
at the end of the preset time (10 minutes);
TIN allows the user to read the value of the 0/10
Vdc signal (if present) to the heater input;
Pra not used;
ABI used to enter the PWD to access
and modify the second and third level menus;
Prt it displays the value of the instantaneous
heat input [kW];
Con it displays the value of the instantaneous
gas consumption [m3/h].
Frc it allows operating the circulator
manually (if any)
Entering the password
• Fromtheinitialscreen(ON/OFF/rdy/FXX)usethe↑(up
arrow)and↓(downarrow)keystoreachtheABIfunction;
hold down the ENTER key for 3 seconds;
• SetthepasswordinsidetheABIandmenuconrmitwith
ENTER ; hold it down per approximately 3 seconds (the
ashingdisplaywillconrmthattheparameterhasbeen
stored);
• PressESCand,byusingthe↑and↓arrowkeys,return
to the initial screen (ON/OFF/rdy/FXX); press ENTER for
3 seconds;
• Usethe↑and↓arrowkeystoreachthedesiredmenuitem
(Flt, I/O, SET, PAR);
• Press ENTER to access the function;
• Usethe↑and↓arrowkeystoselecttheparameterstobe
displayed and edited;
• Press ENTER to display the parameter value;
• Usethe ↑and ↓arrowkeystoeditthevalue(onlySET
and PAR);
• Press ENTER toconrmthechangemade;
• To exit the parameter and the menu, press ESC until the
initial screen is displayed (ON/OFF/rdy/FXX).
Second and third level menus
The second and third level menus are reserved to the Service
Centreandsaidparameterscanbemodiedonlybyenteringa
password,whichcanberequestedtothemanufacturer'sService
Centre. For more detail, see Paragraph 7.3 "Programming with
a LCD panel".
4.3. Reset and Fault index
In case of lockout, the modulation PCB of the heater allows
theoperatortoidentifyaboutthirtydi󰀨erentcausesoflockouts
with a code. This makes it possible to manage each event very
accurately.
To reset the Fault and unlock the heater, simply press the two
LDC panel arrow keys ( ↑and↓) simultaneously for at least 3
seconds or operate one of the remote controls provided, if any.
Lockouts may be remotely controlled by using:
• the digital input ID4-IDC4 - button N.O.;
• the Smart Web/Easy - optional;
• the ModBus protocol.
TheFaultsareclassiedaccordingtothetypeoferror;themost
common and easier to sort out by user are:
F1x these faults are caused by the burner failed ignition;
theyallrequireamanualreset.
F20 heater safety thermostat lockout; this fault must be
manually reset.
F22 opening of the safety thermostat of the heater at start-
up, due to a fault or to a temperature below -20°C.
F21 jumper missing across terminals ID1 and IDC1.
F3x lockouts caused by faults of the fume extractor.
F4x lockouts caused by an error or by a missing temperature
probe; they must be sorted out by the Service Centre.
F51 the temperature of the air supplied has exceeded the
upper limit set in parameter TH1; as the temperature drops, the
lockoutwillsortitselfout;manualresetisnotrequired.
F60 on the LCD panel only, the heater is connected to a
Smart Web or Easy but does not communicate. When commu-
nication is restored, the lockout condition will disappear; manual
resetisnotrequired.
Ifignitionfails,theamemonitoringsystemreattemptsignition
four times. After four failed attempts, it will lock out and will
display the code F10.
Iftheamemonitoringequipmenthaslockedout(codesfrom
F10toF20),itcanberesetitbyusingthebuttonontheequip-
ment itself. This lockout is shown by a LED that lights up on
theequipment.
The list and meanings of all lockout codes, with any relevant
cause, are shown in the FAULT table in Paragraph 5.7 "Analysis
of lockouts - faults".
WARNING: The ame monitoring equipment memorises
the number of manual resets that are performed during
its lifetime. In case of ve resets performed in a period
of 15 minutes, without a ame being ignited and detect-
ed, the equipment will go into a "timed" lockout (F13).
In this case, it is required to wait another 15 minutes
before resetting it again. Press the reset button on the
equipment to immediately reset this lockout condition.
NOTE: SHOULD THE SAFETY THERMOSTAT (STB) BE
“OPEN” BEFORE THE START-UPCYCLE IS STARTED,
F22 LOCKOUT IS SIGNALLED.THIS CAN OCCUR, FOR
EXAMPLE,INTHEPRESENCEOFLOWTEMPERATURES

19 code HG0141.00GB ed.A-2008 LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
HG0107.08_C2_005
HG140.00_IM_056
d0parameter,whichidentiesthetypeofregulationassociated
with the heater.
Function d0 parameter
programming Regulation mode
Modulation
Flame
d0=2 NTC1
d0=5 0-10Vdc
d0=7 Modbus
Safety thermostats
LRP and LK heaters are tted with a safety thermostat with
automatic reset and positive safety setting.Asafety operation of
this thermostat occurs when its sensitive component is broken.
The breaking of the sensitive element corresponds to a safety
intervention.Whenthethermostatclicksin,throughtheame
monitoringequipment,theburnerstopsandtheameequip-
ment is locked out.
The lockout of the unit, caused by the safety thermostat trigger-
ing, is indicated on the LCD display of the CPU PCB on board
the machine with F20 or F22.
Thelockoutisclassiedas"non-volatile"andrequiresamanual
reset.
Near the safety thermostat, there is an NTC1 probe set to the
value of the ST1 parameter, which reduces the burner's heat
output when the set point is reached, regardless of other input
signals.Theprobemonitorstheheatoutput/coolingairowratio.
It is not advisable to change the ST1 value without consulting
the APEN GROUP Service Centre.
4.4. Adjustment
The LRP or LK heaters have three heat output regulation modes:
• 0-10 Vdc;
• ModBus;
• NTC1 temperature probe.
NOTE: The NTC1 probe is always active as a limit, even
with 0-10V and ModBus regulation modes.
To correctly set the regulation mode, it is necessary to program
4.5. Accessories
Ambient temperature adjustment
The LRP and LK heaters are supplied without remote control
and/or thermostat to regulate the room temperature as they can
operate with the most common remote controls available on the
market: APEN GROUP can supply several dedicated remote
controls that can be integrated as accessories.
Types of remote control:
• ordinary remote control;
• thermostat or chronothermostat;
• Smart Web (code G27700) or Smart Easy (code G27500).
Instructions on how to operate the accessories can be found in
manuals supplied with the accessories.
Operation with ordinary remote control (OPTIONAL)
IT is possible to install an ordinary remote control with a voltage
free contact, across terminals ID2/IDC2 of the heater modulation
PCB;whenthecontactopens/closes,theheaterswitcheson/o󰀨.
To simplify the heater operation, Apen Group can provide an
optional accessory (code G27800) that allows its operation
to be remotely controlled. The remote control G27800 allows
theusertoswitchtheequipmentonando󰀨[0/I],toswitch
between summer/winter, to receive a signal in case of lockout
and to operate the reset button.
ON/OFF switch
Heater
Reset
button
Summer-winter
switch
Operation with thermostat (OPTIONAL)
By connecting to the heater a thermostat with a voltage-free
contact between the ID2/IDC2 terminals of the heater modu-
lation PCB.
Apen Group can provide an optional thermostat (code G27400)
thatallowstoswitchtheheateron/o󰀨bymeansofroomtem-
perature control, during heating, and allows managing summer
ventilation and remote reset.

20
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
SmartWEB
Smart EASY
Operation with chronothermostat (OPTIONAL)
The heater operation is entirely automatic and, by using a
chronothermostat, the ambient temperatures can be regulated.
The chronothermostat and the PCB monitor all the control and
regulation functions, whilst the safety functions are performed by
theamemonitoringequipmentandbythesafetythermostats.
NOTE: To control the room temperature, the heater must
be connected to a room thermostat (or chronothermostat)
or to an ON/OFF switch.
If a thermostat supplied by third parties is installed, the room
temperature must be programmed on the thermostat.
In this type of installation, we recommend that the remote con-
trols G27700 or G27500 shown below are used so that the user
can check the lockout conditions and, if necessary, remotely
reset the heater.
Operation with SMART series (WEB or EASY) chronother-
mostat (OPTIONAL)
The remote controls of the Smart series (WEB G27700 or
EASY G27500) act as a chronothermostat and can be used to
remotely control and manage all the parameters of the heater.
Through ModBus protocol, they can be used as a monitoring
device for a single zone system at the same temperature, where
up to 32 machines can be installed simultaneously, controlled
by a single control.
TheremotecontrolsoftheSmartseriesareequippedwitha
colour TFT 4.3" touch screen (480x272 pixel resolution), from
which it is possible to read and adjust all the parameters of the
connected devices, performing the function of supervisor/viewer
and controller (active part of the regulation) able to:
• display the status of the burners
• display the percentage of modulation
• manage alarms and resets
• manage the units in automatic or manual mode
• manage the weekly and annual calendar planning
• manage the scheduling of daily time slots.
To use the Smart series chronothermostat, simply set, on each
heater, the parameter d0 = 7 (ModBus management) with Smart
in PID mode. By setting the parameter D0 = 7, but with Smart
in ON/OFF mode, the heater will always set to minimum. The
address of the modulation boards of the heaters must be set
as shown below.
Toactivatetheheatingrequest,closeinputID2oftheheater
modulation PCB (by closing terminals ID2/IDC2, voltage-free dry
contact), and input ID1 of the Smart itself (by closing terminals
ID1/GND, voltage-free dry contact).
The Smart (WEB or EASY) remote controls are supplied with
a voltage of 12 Vdc +10%/-15%.
An integrated temperature probe allows the management of the
room temperature of the controlled area; the remote controls
oftheSmartseriesalsoo󰀨erthepossibilitytoconnectupto3
individually programmable remote probes, in addition to the one
integrated on board, as main or additional probes, which allow
obtaining an average room temperature on 4 points.
The remote NTC probes that can be connected must be of 10
KΩ,β3435typeandconnectedtoNTC/NTCterminals.
NOTE: The remote NTC probes are optional external
probes (code G07202 or G07202); not to be mistaken
with the modulation probe NTC1.
The remote controls of the Smart series allow, through the PID
regulation, calculating in real time a percentage of modulation
of the power needed to reach the desired set-point and sending
it to each heater, obtaining economic savings and ensuring a
greater degree of room comfort.
The WEB version, in addition, allows the complete man-
agement of all the system functions, including unit resets,
directly from a PC connected to the network, without having
to install any additional software, but simply through a
browser interface.
For more information on operation and installation diagrams,
please refer to the manual HG0060.00 "SMART WEB / SMART
EASY CHRONOTHERMOSTAT. Operating, Installation and
Programming Manual".
Analogue and digital inputs
Should it be necessary to remotely connect one or more ana-
logue inputs, through the connection of an external NTC probe,
the relevant cable sections are indicated below according to
the cable length:
Type Length < 50 m Length < 100 m
NTC 0.5 mm21 mm2
ATTENTION: All remote controls must have a maximum
connection length of less than 10 m and up to 500 m in
the case of Smart series chronothermostats.
NOTE:Always keep the cables coming from the analogue
and digital inputs separated (about 5 cm) from the power
load cables to avoid possible electro-magnetic distur-
bances. Never insert power cables and signal cables
into the same cable duct.