IMPORTANT Read this manual carefully before starting up the system. In order to improve the product, Systema reserves the right to modify the content

EOLO GAS AIRTIGHT SUSPENDED WARM AIR HEATERS Series with axial fan models 20AE, 30AE, 50AE, 70AE, 90AE Series with centrifugal fan models 20AC, 30AC, 50AC, 70AC, 90AC ENGLISH INSTRUCTION MANUAL INSTALLATION, USE AND MAINTENANCE

IMPORTANT Read this manual carefully before starting up the system. In order to improve the product, Systema reserves the right to modify the content without prior notice. Via San Martino 17/23 S. GIUSTINA IN COLLE (PD) loc. Fratte Fontane Bianche PADOVA - ITALY Tel 0039 0499355663 (8 linee r.a.) Fax 0039 0499355699 E-mail: systema@systema.it commercial informations http://www.systema.it technical informations Revion 10EE0112

Gas airtight suspended warm air heaters - EOLO Contents SYSTEMA S.p.A. 1 GENERAL RULES... 5 2 PACKAGING... 5 2.1 List of packing... 5 3 GENERAL TECHNICAL SPECIFICATIONS... 7 3.1 Description and operating specifications... 7 3.2 Technical specifications... 8 3.2.1 Suction series with axial fans...8 3.2.2 Suction series with centrifugal fans...9 3.3 Main control and safety components on the appliance... 10 3.4 Overall dimensions... 12 3.5Exploded view of Eolo heaters... 13 3.5.1 Exploded view of Eolo20AE...13 3.5.2 Exploded view of Eolo20AC...13 3.5.3 Exploded view of Eolo30AE...14 3.5.4 Exploded view of Eolo30AC...14 3.5.5 Exploded view of Eolo50AE-Eolo70AE...15 3.5.6 Exploded view of Eolo50AC-Eolo70AC...15 3.5.7 Exploded view of Eolo90AE...16 3.5.8 Exploded view of Eolo90AC...16 3.5.9 Legend of components...17 3.6 Position of the ignition and detection electrodes... 18 3.7 Position of the nozzle... 18 4 INSTALLATION... 19 4.1 Place of installation and safety distances... 19 4.2 Installing the appliance... 20 4.2.1 Fitting the brackets for Eolo 20...20 4.2.2 Fitting the brackets for Eolo 30-50-70-90...21 4.3 Fitting the fire damper (optional)... 22 5 SETTING UP THE APPLIANCE... 23 5.1 Examples of applications... 23 6 DISCHARGE AND SUCTION DUCTS... 24 6.1 Coaxial roof discharge for Eolo20 (type C32)... 25 6.2 Coaxial wall discharge for Eolo20 (type C12)... 26 6.3 Separate wall discharge for Eolo20 (type C12)... 27 6.4 Coaxial roof discharge for Eolo30-50-70-90 (type C32)... 28 6.5Coaxial wall discharge for Eolo30-50-70-90 (type C12)... 29 6.6 Separate wall discharge for Eolo30-50-70-90 (type C12)... 30 6.7 Separate roof discharge for Eolo30-50-70-90 (type C32)... 31 7 GAS PIPES... 32 7.1 Connecting the appliance... 32 8 ELECTRICAL SYSTEM... 33 3

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 8.1 Connection diagram to CE type boards mod. 04CEQU1202 (without timer) and mod. 04CEQU1203 (with timer)... 33 8.2 Connection to the board code 04CEQU1204... 34 8.3 Internal wiring diagram Eolo 20-30-50... 35 8.4 Internal wiring diagram Eolo 70-90... 36 9 INSPECTION AND STARTING UP THE SYSTEM... 37 9.1 Preliminary ignition procedures... 37 9.2 Ignition phases... 37 9.3 Adjusting the pressure on the solenoid valve and pressure intake... 38 9.4 Bi-thermostat for adjusting fan start-up... 39 9.3 Measuring the efficiency... 40 9.3.2 Measuring the temperature of combustion air...40 10 MAINTENANCE... 41 10.1 Gas conversion... 41 10.1.1 Conversion from Natural Gas to LPG... 41 10.1.2 Conversion from LPG to Natural Gas... 42 10.2 Operating faults... 43 11 WARRANTY... 44 11.1 Subject-matter and duration of the warranty... 44 11.2 Exclusions from the warranty... 44 11.3 Competence... 45 11.4 Operativeness and efficacy of the warranty... 45 11.5Responsibility... 45 11.6 Legal disputes Territorial competence and rights of the parties... 45 12 SETTING ASIDE... 45 13 NOTES... 46 4

Gas airtight suspended warm air heaters - EOLO 1 GENERAL RULES SYSTEMA S.p.A. This instruction manual is an integral and essential part of the appliance and must be kept carefully beside the appliance for further consultation. Read the instructions and warnings contained in this manual carefully as they provide important information on safety, installation, use and maintenance. IMPORTANT!! In the event of this manual being misplaced contact the manufacturer immediately. Several appliances installed in the same room or in directly communicating rooms, are considered as a single system, with a thermal capacity of the total of the thermal capacities of each single appliance. Their use is not permitted to heat rooms destined for handicraft or industrial activities in which processes and materials stored may cause the formation of gas, vapours or powders susceptible to induce fires or explosions. Installation must be performed by professionally qualified personnel responsible for compliance with the current safety standards. The manufacturer declines all responsibility in the event of damages caused by erroneous installation or improper and/or incorrect use of the appliance. The packaging materials (nylon, foamed polystyrene, wood, staples, etc.) must not be left within the reach of children as they are potential sources of danger. Initial ignition of the appliance must be performed by qualified personnel. In the case of the appliance shutting down or functioning incorrectly it must be switched off. Any repairs or replacement of spare parts must be performed solely by qualified personnel using exclusively original spare parts. Non-compliance with the aforesaid rules may endanger the safety of the appliance. To guarantee correct operation of the appliance it is fundamental to carefully follow the instructions provided by the manufacturer and to have the appliance serviced by qualified personnel at least once a year. N.B. To switch off the appliance always used the ambient thermostat and not the master switch on the control board on the ground, as this could cause overheating in the combustion chamber with consequent damage to the appliance. The heater may be installed outdoors with temperatures down to -15 C. Below this temperature operation of the appliance is no longer guaranteed. 2 PACKAGING 2.1 List of packing a) The appliance complete with all its parts is delivered packed and wrapped in a protective nylon film inside which the following are also found: the wall-mounting brackets, the electric control board with relevant thermostat with probe (if requested) and two air/fume terminations (if requested). 5

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO Fig.1 Appliance Packing Model Series AE [kg] Series AC [kg] EOLO20 77, 5 89 EOLO30 114, 5 132 EOLO50 150, 5 173 EOLO70 167, 8 193 EOLO90 198, 8 229 6

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 3 GENERAL TECHNICAL SPECIFICATIONS 3.1 Description and operating specifications EOLO suspended gas warm air heater is composed of a combustion chamber in stainless steel, inside which a gaseous component (natural gas or LPG) is combusted. In just a few minutes the external surfaces of the combustion chamber and fume tube nest, lapped by ambient air circulated by the fans, reach their operating temperature. The appliance operates automatically; the systems for electronic control, mixing, combustion, ignition, suction of combustion air and discharge of fumes are housed in a compartment provided with an inspection hatch that makes adjustment and maintenance operations easy to perform. A fan-limit safety bi-thermostat controls start-up and shut-down of the fan unit, also shutting down the burner in the case in which the supply air temperature exceeds the safety values permitted. Suction of combustion air and discharge of fumes can be conveyed directly outside the building (type C appliance); therefore, there is no communication between the combustion chamber and the indoor environment (this guarantees maximum safety). In the summer the fan unit can be operated alone to provide ambient comfort and provide a supply of fresh air. To switch to this operation press the button on the aluminium front of the bi-thermostat. 7

SYSTEMA S.p.A. 3.2 Technical specifications Gas airtight suspended warm air heaters - EOLO 3.2.1 Suction series with axial fans SUCKED-AIR SERIES WITH HELICAL FANS MODELS DESCRIPTION Unit of measurement 20AE 30AE 50AE 70AE 90AE Rated thermal input Rated thermal output Kcal/h ( H i) 18.920 29.240 46.440 60.200 80.840 kw ( H i) 22 34 54 70 94 Kcal/h ( H i) 17.179 26.345 42.678 53.698 72.271 kw ( H i) 20 31 50 62 84 C ombustion perfomance % 90, 8 90,10 91, 9 89, 2 89, 4 MAX COSUMPTI- ON (15 C 1013.25 mbar) Natural gas G20 LGP Butan G30 LGP Propan G31 Nmc/ h 2,33 3,60 5,71 7,41 9,95 kg/ h 1,73 2,68 4,26 5,52 7,41 kg/ h 2,71 2,64 4,20 5,44 7,30 Fuel connector diameter Fume outlet diameter Intake diameter Tension alimentation i nche s 3 /4" 3 /4" 3 /4" 3 /4" 3/4" mm 80 mm 80 V/Hz 230/50 230/50 230/50 230/50 230/50 Total elettric power required W 205 240 395 570 580 Treated air capacity mc/ h 1.950 3.000 4.500 5.900 6.900 Air throw m 10 15 20 26 29 Thermal jump C 28 28 30 30 34 Power W 185 165 300 475 355 R evolutions n' 1.440 1.400 1.440 1390 1.440 N o. of ventilators n 1 1 2 2 3 S ound level (at 5 m) db(a) 50 68 49 58 65 Poids kg 77, 5 114, 5 150, 5 167, 8 198, 8 A = sucked-air fan; E = helical fan 8

Gas airtight suspended warm air heaters - EOLO 3.2.2 Suction series with centrifugal fans SYSTEMA S.p.A. SUCTION SERIES WITH CENTRIFUGAL FANS MODELS DESCRIPTION Unit of measurement 20AC 30AC 50AC 70AC 90AC Thermal capacity Useful thermal power K cal/h ( Hi) 18.920 29.240 46.440 60.200 80.840 k W ( Hi) 22 34 54 70 94 K cal/h ( Hi) 17.179 26.345 42.678 53.698 72.271 k W ( Hi) 20 31 50 62 84 C ombustion efficiency % 90, 8 90,10 91, 9 89, 2 89, 4 MAX COSUMPTION (15 C 1013.25 mbar) Natural gas LPG Butane LPG Propane G20 G30 G31 Nmc/ h 2,33 3,60 5,71 7,41 9,95 kg/ h 1,73 2,68 4,26 5,52 7,41 kg/ h 2,71 2,64 4,20 5,44 7,30 Diameter of fuel couplings Fume discharge diameter Suction diameter Supply voltage I nche s 3 /4" 3 /4" 3 /4" 3 /4" 3/4" mm 80 mm 80 V/Hz 230/50 230/50 230/50 230/50 230/50 Total absorbed power W 270 650 800 830 1800 Treated air capacity Total pressure Thermal head mc/ h 1.900 3.150 4.500 5.700 8.600 mmh 2 O 12 10 11 12 10 C 29 27 30 31 27 Fan(s) power W 250 575 700 735 1.570 R evolutions n' 900 900 900 900 900 N umber of fans n 1 1 2 2 3 S ound l. (at 5 m) db(a) 45 62 45 54 60 Weight kg 89 132 173 193 229 A = suction air burner C = centrifugal fan Category...II 2H3+ 9

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 3.3 Main control and safety components on the appliance a) Electronic control unit: one for all models. This controls opening of the gas solenoid valve and ignition of the burner. After receiving the electrical signal from the ambient thermostat, it checks that the pressure switch is operating normally (ignition is not enabled unless this check is passed). It then enables prewash of the combustion chamber (4 exchanges) and then ignition by means of a spark. If the flame is not detected (ionization probe) within the safety time the appliance shuts down. To restart it wait a few seconds and press the specific reset button with LED on the control board. CONTROL UNIT TECHNICAL SPECIFICATIONS Make... BRAHMA... BRAHMA Mod... CM 31 F... CM 32 F Supply voltage... 220/240 V 50/60 Hz...220/240 V 50/60 Hz Utilization temperature... de -20 C à + 60 C...de -20 C à + 60 C Prewash time... 20 sec... 20 sec Safety time at start-up... max 10 sec...max 10 sec Safety time at shut-down... < 1sec... < 1 sec b) Differential pressure switch: the aim of this is to interrupt operation of the appliance if the flow rate of the fan-exhaust fan is insufficient caused either by a fault in the fan or by clogging in the combustion circuit (combustion air duct, combustion chamber, heat exchanger, combustion products discharge), both of which can be caused by bad combustion CO forming above the permitted limits. This is located inside the compartment which houses all the control components, and detects, by means of two silicone tubes, both the pressure in the combustion air suction duct and the pressure inside the burner box in which the combustion torch is located. The difference between the two pressure values with the exhaust fan operating is the control signal for safe and correct combustion. PRESSURE SWITCH SPECIFICATIONS Make... HUBA CONTROL Code... 605.99501 Assembly position... vertical Max. working pressure... 5000 Pa Reset point (opening)...110 Pa (+/- 16 Pa) Pneumatic connection...ø 6,2 mm Utilization temperature...-30 C, +85 C c) Gas valve: this is multifunction and multigas with double safety solenoid valve (connected in series) in class B. Provided with a pressure regulator, slow ignition device and gas filter. Located on the aluminium body are the threaded gas inlet-outlet connection ½ RP UNI-ISO 7, with relevant pressure inlet and outlet. Gas valve adjustment and the only maintenance operation that can be performed on the valve (replacement of the coils) must only be executed by qualified technicians. GAS VALVE TECHNICAL SPECIFICATIONS Make... SIT CONTROLS Mod.... 830 TANDEM Supply voltage...220/240 V 50/60 Hz Degree of electrical protection...ip 54 Closing time...< 1s Utilization temperature...0 +60 C -20 +60 C (on request) Range of output pressure...3 50 mbar 10

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. d) Fan-limit safety bi-thermostat with automatic reset : this has a double aim: -to control start-up of the fans after the air has reached 50 C and shut-down of these when the air temperature has dropped below 30 C; -to interrupt operation of the appliance if there is abnormal overheating of the air (>90 C); the appliance can be reset manually using the reset button located on the board. SAFETY BI-THERMOSTAT TECHNICAL SPECIFICATIONS Limit control...4 (4) A Fan control...7 (7) A Supply voltage... 230-240 V 11

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 3.4 Overall dimensions SERIES AE with axial fan Front view Rear view Side view SERIES AC with centrifugal fan Front view Rear view Side view Fig.2 Overall dimensions OVERALL DIMENSIONS AXIAL SERIES MODELS A B C D E F G H I L M N O P Q R S Weight [kg] 20AE 175 185 45 500 42 205 210 665 400 870 300 130 520 77, 5 30AE 205 230 53 730 126 213 200 700 485 1170 380 650 115 50AE 345 105 930 175 235 215 800 555 1540 380 725 151 70AE 345 105 930 175 235 215 800 555 1540 380 725 168 90AE 330 340 1240 160 240 215 800 555 1830 380 725 199 OVERALL DIMENSIONS CENTRIFUGAL SERIES MODELS A B C D E F G H I L M N O P Q R S Weight [kg] 20AC 175 185 45 500 42 205 210 665 400 870 820 300 130 560 395 470 380 89 30AC 205 230 53 730 126 213 200 700 485 1170 995 380 640 326 860 510 132 50AC 345 105 930 175 235 215 800 555 1540 1065 380 755 444 1 510 173 70AC 345 105 930 175 235 215 800 555 1540 1065 380 755 444 1 510 193 90AC 330 340 1240 160 240 215 800 555 1830 1065 380 755 480 1400 510 229 12

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 3.5 Exploded view of Eolo heaters 3.5.1 Exploded view of Eolo20AE Fig. 3 Exploded view of EOLO20AE 3.5.2 Exploded view of Eolo20AC Fig. 4 Exploded view of EOLO20AC 13

SYSTEMA S.p.A. 3.5.3 Exploded view of Eolo30AE Gas airtight suspended warm air heaters - EOLO Fig.5 Exploded view of EOLO30AE 3.5.4 Exploded view of Eolo30AC Fig.6 Exploded view of EOLO30AC 14

Gas airtight suspended warm air heaters - EOLO 3.5.5 Exploded view of Eolo50AE-Eolo70AE SYSTEMA S.p.A. Fig. 7 Exploded view of Eolo50AE-Eolo70AE 3.5.6 Exploded view of Eolo50AC-Eolo70AC Fig. 8 Exploded view of Eolo50AC-Eolo70AC 15

SYSTEMA S.p.A. 3.5.7 Exploded view of Eolo90AE Gas airtight suspended warm air heaters - EOLO Fig. 9 Exploded view of Eolo90AE 3.5.8 Exploded view of Eolo90AC Fig. 10 Exploded view of Eolo90AC 16

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 3.5.9 Legend of components POS. CODE DESCRIPTION LEGEND OF COMPONENTS EOLO 20 AE Q.TY POS. CODE DESCRIPTION LEGEND OF COMPONENTS EOLO 20AC 1 01CEAP0010 CONTROL UNIT CM31F 1 1 01CEAP0010 CONTROL UNIT CM31F 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 4 04CEVE0809 5 02CEAS3004 VENTILATEUR HELICOIDAL ZIEHL-EBM A6E400 MOTEUR ASPIRATEUR FUMEES NATALINI EV 200/2C 1 4 04CEVE0977 1 5 02CEAS3004 CENTRIFUGAL FAN MARZORATI COD.713315 TYPE DA 9/7 FUME EXHAUST FAN MOTOR NATALINI EV 200/2C 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 1 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 1 LEGEND OF COMPONENTS EOLO 30AE LEGEND OF COMPONENTS EOLO 30AC 1 01CEAP0010 CONTROL UNIT CM31F 1 1 01CEAP0010 CONTROL UNIT CM31F 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 4 04CEVE0809 AXIAL FAN ZIEHL-EBM A4E400 1 4 04CEVE0977 5 02CEAS3004 FUME EXHAUST FAN MOTOR NATALINI EV 200/2C 1 5 02CEAS3004 CENTRIFUGAL FAN MARZORATI COD.713356 TYPE DA 10/8 FUME EXHAUST FAN MOTOR NATALINI EV 200/2C 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 1 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 1 LEGEND OF COMPONENTS EOLO 50AE LEGEND OF COMPONENTS EOLO 50AC 1 01CEAP0010 CONTROL UNIT CM31F 1 1 01CEAP0010 CONTROL UNIT CM31F 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 4 04CEVE0809 AXIAL FAN ZIEHL-EBM A4E400 2 4 04CEVE0977 5 00CEMT0287 FUME EXHAUST FAN MOTOR SIMEL W R.A. 1 5 00CEMT0287 CENTRIFUGAL FAN MARZORATI COD.713317 TYPE DA 9/7 FUME EXHAUST FAN MOTOR SIMEL MOT. W R.A. 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 1 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 1 LEGEND OF COMPONENTS EOLO 70AE LEGEND OF COMPONENTS EOLO 70AC 1 01CEAP0764 CONTROL UNIT CM32F 1 1 01CEAP0010 CONTROL UNIT CM32F 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 4 04CEVE0810 AXIAL FAN ZIEHL-EBM A4E450 2 4 04CEVE0977 5 00CEMT0827 FUME EXHAUST FAN MOTOR SIMEL W R.A. 1 5 00CEMT0827 CENTRIFUGAL FAN MARZORATI COD.713356 TYPE DA 10/8 FUME EXHAUST FAN MOTOR SIMEL W R.A. 6 02CEEV0537 SOUPAPE SIT 830 TANDE M 2 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 2 LEGEND OF COMPONENTS EOLO 90AE LEGEND OF COMPONENTS EOLO 90AC 1 01CEAP0764 CONTROL UNIT CM32F 1 1 01CEAP0010 CONTROL UNIT CM32F 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 1 2 04CEPR1108 AIR PRESSURE SWITCH HUBA CONTROLS MOD. 605-110 Pa 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 3 04CEBI0041 FAN-LIMIT SAFETY BI-THERMOSTA T 1 4 04CEVE0809 AXIAL FAN ZIEHL-EBM A4E400 3 4 04CEVE0977 5 04CEMO2601 FUME EXHAUST FAN MOTOR SIMEL 180W R.O. 1 5 04CEMO2601 CENTRIFUGAL FAN MARZORATI COD.713356 TYPE DA 10/8 FUME EXHAUST FAN MOTOR SIMEL 180W R.O. 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 2 6 02CEEV0537 SOLENOID VALVE SIT 830 TANDE M 2 Q.TY 1 1 1 1 1 1 1 2 1 1 2 1 1 3 1 17

SYSTEMA S.p.A. 3.6 Position of the ignition and detection electrodes Gas airtight suspended warm air heaters - EOLO 3.7 Position of the nozzle Fig. 11 Position of electrodes Fig. 12a Position of nozzles 18 Fig. 12b Position of nozzles - second flame level (Eolo 70 AE/AC, Eolo 90 AE/AC)

Gas airtight suspended warm air heaters - EOLO 4 INSTALLATION 4.1 Place of installation and safety distances - Installation must be performed by professionally qualified personnel responsible for complying with the current safety Fig.11e standards. The manufacturer declines all responsibility in the case of damages caused by erroneous installation or improper and/or incorrect use of the appliance. SYSTEMA S.p.A. To obtain the maximum yield from EOLO suspended warm air heaters the following rules should be followed: - Establish the position, bearing in mind the type of work, priority zones to be heated and absorbing walls (windows, doors, entrances etc.) see fig. (11a, 11b, 11c). - Install the appliances respecting the correct distances from the walls see. fig. ( 11d,11e) - Install the EOLO suspended heaters as near as possible to the zone to be heated complying with a distance from the floor and from people to ensure the jet of warm air is not aimed directly at them. - When positioning the EOLO suspended heaters take into account any obstacles, such as shelves, walls, columns, etc.. - If several appliances are to be installed in the Fig.11a Fig.11b same environment, it is advisable to position these on opposite walls and between one another to cover the area to be heated uniformly. - If there are any drafts of cold air from entrances, doors, etc., it is advisable to install the appliances so that the jet of hot air is aimed towards the source of cold air. - Appliances must never be installed in niches or positions that do not guarantee sufficient Fig.11c aeration for correct operation. - Several appliances installed in the same room or in directly communicating rooms, are considered as a single system, with a thermal capacity of the total of the thermal capacities of each single appliance. - In environments subjected to vacuum pressures or in which processes develop a noteworthy amount of non-combustible dust, the appliances must be installed so that air Fig.11d suction and discharge of fumes is performed directly from the outside through the outside wall (or aperture) of the room in which the appliances are installed. N.B. Make sure that rooms are specifically ventilated for type B applications 19

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 4.2 Installing the appliance 4.2.1 Fitting the brackets for Eolo 20 1= Bracket to be fixed to the wall 2= Bracket to be fixed under Eolo 3= Supporting bracket Fig. 13 Fixing brackets for Eolo20 20

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 4.2.2 Fitting the brackets for Eolo 30-50-70-90 Holes for fixing the plate under Eolo Slots for fixing the plate (1) to the bracket (2) 1 2 Holes for Eolo series AE Holes for Eolo series AC 1) Fix the two plates (1) under Eolo with the corresponding holes. 2) Fix the two brackets (2) to the wall complying with the distance of the plates (1) fixed under Eolo. 3) Fix Eolo using the two slots on the plates to the wall-mounted brackets (2); for Eolo AC the fixing holes are those farthest from the wall. 1 2 Fig.14 Fitting the brackets Eolo 30/50/70/90 21

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 4.3 Fitting the fire damper (optional) Fig. 15 Fitting the fire damper 22

Gas airtight suspended warm air heaters - EOLO 5 SETTING UP THE APPLIANCE 5.1 Examples of applications SYSTEMA S.p.A. IMPORTANT!! The heater may be installed outdoors with temperatures down to -15 C. Below this temperature operation of the appliance is no longer guaranteed. Fig. 16 Examples of application For the examples of applications shown above, the company Systema only provides the main components, namely the heater with original air outlets and adjustable fins, fire damper, original filters, supporting brackets, fume termination. All other components required to perform complete application, namely air pipe fittings, intake and external air regulation shutters, covers, cooling batteries, etc., must be identified by the installing company. LEGEND 1= Pipe 2= Dielectric joint 3= Manual on-off valve in an easy to reach position 4= Gas feed pipe 5= Supporting bracket 6= Vibration damping joint 7= Manual gas on-off valve 23 8= Combustion air inlet termination 9= Combustion products outlet termination 10= Heater 11= Two-way fire damper 12= Distribution outlet 13= Protective canopy 14= External perimeter wall 15= Centrifugal fan 16= Control board with ambient thermostat

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 6 DISCHARGE AND SUCTION DUCTS The fume discharge ducts relevant to type C appliances with natural or forced draft, must comply with the following conditions: they must be metal, be constructed in materials resistant to normal mechanical stress, heat and the action of combustion products and any condensation through time; the use of corrugated ducting is not permitted. It is possible to use both rigid pipe in stainless steel and in aluminium (the latter with a minimum thickness of 1.5 mm). As a connection it is possible to utilize double wall flexible stainless steel pipe with a smooth internal surface (previously subjected to testing according to EN 166/21). For combustion air ducts to the burner any kind of metal pipe can be used. (1) Make sure that rooms are specifically ventilated for type B applications (1) (1) Fig. 17 Lengths of fume and combustion air ducts For fume ducts over 5-6 m in length, bear in mind that condensation phenomena could occur inside the ducts if these are not sufficiently insulated. 24

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 6.1 Coaxial roof discharge for Eolo20 (type C32) 1= Female coupling Ø mm 2= Tandem connection 3= Rigid component Ø 80 mm M/M length 320 mm 4= Elbow bend 90 Ø 80 mm F/F 5= Rigid component Ø 80 mm M/F length 125 mm 6= Eolo20 7= Elbow bend 90 Ø 80 mm M/F Fig. 18 Example of coaxial roof discharge for Eolo20 25 8= Gasket 9= Rigid component Ø mm M/F length 1.000 mm 10= Rigid component Ø 60 mm M/F length 1.000 mm 11= Reduction 12= Ceiling termination

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 6.2 Coaxial wall discharge for Eolo20 (type C12) Fig. 19 Example of coaxial wall discharge for Eolo20 1= Rigid component Ø 80 mm M/F length 250 mm 2= Gasket 3= Female coupling Ø mm 4= Hole flange 5= Coaxial wall termination 6= Tandem connection 7= Elbow bend 90 Ø 80 mm M/F 8= Eolo20 26

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 6.3 Separate wall discharge for Eolo20 (type C12) Fig. 20 Example of coaxial wall discharge for Eolo20 1= Rigid component Ø 80 mm M/F length 0 mm 2= Hole flange 3= Cover for fume discharge termination 4= Cover for air termination 5= Eolo20 27

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 6.4 Coaxial roof discharge for Eolo30-50-70-90 (type C32) Fig. 21 Example of coaxial roof discharge for Eolo30/50/70/90 1= Coaxial roof termination Ø 150/ mm 2= Top collar 3= Lead flashing 4= Hole flange 5= Tandem connection 6= Clamping band 7= Elbow bend 90 Ø mm M/F 8= Silencer 9= Eolo 10= Band for clamping flexible air pipe 11= Flexible pipe for combustion air 28

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 6.5 Coaxial wall discharge for Eolo30-50-70-90 (type C12) Fig. 22 Example of coaxial wall discharge for Eolo30/50/70/90 1= Silencer 2= Clamping band 3= Tandem connection 4= Coaxial wall termination Ø 150/ mm 5= Hole flange 6= Band for clamping flexible air pipe 7= Flexible pipe for combustion air 8= Eolo 29

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 6.6 Separate wall discharge for Eolo30-50-70-90 (type C12) Fig. 23 Example of separate wall discharge for Eolo30/50/70/90 1= Silencer 2= Clamping band 3= Wall fume termination Ø mm 4= Wall air termination Ø mm 5= Hole flange 6= Eolo 30

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 6.7 Separate roof discharge for Eolo30-50-70-90 (type C32) D= minimun 50 cm Fig. 24 Example of separate roof discharge for Eolo30/50/70/90 1= Roof fume termination Ø mm 2= Top collar 3= Lead flashing 4= Hole flange 5= Clamping band 6= Silencer 7= Elbow bend 90 Ø mm M/F 8= Eolo 9= Rigid component Ø mm M/F length 500 mm 10= Roof air termination Ø mm 31

SYSTEMA S.p.A. 7 GAS PIPES Gas airtight suspended warm air heaters - EOLO 7.1 Connecting the appliance The gas supply pipe must be executed in compliance with the regulations in force in the country in which the system is installed. The sizes of the pipes and any pressure reducers must guarantee correct operation of appliances. Materials used must conform to regulations in force in the country in which the system is installed. a) The appliance must not be subjected to pressures exceeding 40 mbar (0.04 bar); otherwise the membrane of the gas valve may break. b) For natural gas: on the main line upstream, below the meter, always install a pressure stabiliser and a gauge with a scale of 0 60 mbar (0.06 bar) and adjust the pressure to 20 mbar (0.02 bar); higher pressure can be the cause of bad combustion and difficulty in flame ignition. c) For LPG (butane-propane) gas: a stage 1 pressure reducer must be installed near the tank in order to reduce the pressure to 1.5 bar; on the main outside line beside the building always install a stage 2 pressure reducer to reduce the pressure to the values indicated in the table on page 39. Below the stage 2 reducer install a gauge with a scale of 0 60 mbar (0.06 bar) and adjust the pressure to the values indicated in the table on page 39; higher pressure can be the cause of poor combustion and difficulty in flame ignition. d) Upstream and downstream of the main gas supply line a gauge must be installed in a visible position with a scale of 0 60 mbar (0.06 bar) to check any differences upstream and downstream, thus checking the flow rate of the entire mains. e) Moreover, by closing the main gate valve and switching off all the appliances, the seal of the system and gas valves can be checked by determining whether after a short period there is any reduction in pressure on the gauges. f) Always connect appliances using ball valve and anti-vibrating flexible joint for gas. g) Adjusting the gas supply pressure: all appliances are inspected and regulated in the factory for the pressures for which they are predisposed (see ratings plate on the burner or table on page 39). IMPORTANT For natural gas supply with pressures above 20 mbar (200 mm c.a.), always fit a pressure stabiliser for each appliance and adjust the pressure to 20 mbar. 32

Gas airtight suspended warm air heaters - EOLO 8 ELECTRICAL SYSTEM SYSTEMA S.p.A. 8.1 Connection diagram to CE type boards mod. 04CEQU1202 (without timer) and mod. 04CEQU1203 (with timer) All electrical connection must be performed in compliance with the regulations in force in the country in which the system is installed. Refer to the wiring diagram given in this manual to connect the control board to the appliance. In particular: a) Use an electrical cable with no. 8 wires, for phase, neutral, earth, appliance reset, operating telltale, shut-down telltale and ambient thermostat. b) Check that it is accurately earthed and comply with the phase and neutral connections; otherwise the series CE control board will break. c) Position the ambient thermostat at a height of 1.5 1.8 m from the ground. Fig. 25 Connection to the series CE board 33

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 8.2 Connection to the board code 04CEQU1204 Fig. 26a Connection to the board code 04CEQU1204 (with 11 terminal) Fig. 26b Connection to the board code 04CEQU1204 (with 5 terminal) 34

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 8.3 Internal wiring diagram Eolo 20-30-50 Fig. 27 Eolo internal connection diagram with control unit CM 31F Electrical supply 1/N/PE ~ 50Hz 230V To the control board on the ground 35

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 8.4 Internal wiring diagram Eolo 70-90 Fig. 28 Eolo internal connection diagram with control unit CM 32F Electrical supply 1/N/PE ~ 50Hz 230V To the control board on the ground 36

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 9 INSPECTION AND STARTING UP THE SYSTEM 9.1 Preliminary ignition procedures a) Check that the appliances have been set for the available type of gas (consult paragraph 10.1 on gas conversion if required), check the mains pressure (see table below) and turn on the gas. Seal the gas valve adjustment component after regulation. b) Check that the electrical connection between the burner and switchboard is correct. c) Position the ambient thermostat for the zone to the required temperature (consult the instructions provided with the switchboard); the heaters start up. 9.2 Ignition phases 1) The gas pressure switch closes the contact of the phase line, supplying the CM 31F/32F instrument with power; this then starts the feed procedure. 2) The fume exhaust fan then starts up, triggering the air pressure switch; at this point the instrument checks the air pressure switch operation and if this is regular the prewash procedure in the combustion chamber starts; this lasts for a minimum of 20 seconds. FOR FURTHER INFORMATION ON THE INSTRUMENT REFER TO THE RELEVANT TECHNICAL NOTES. 3) After the prewash procedure, the instrument gives the ignition charge for 5 seconds and the green telltale lights up simultaneously. If the flame does not ignite, the instrument shuts down and the red telltale lights up. Press the reset button to restart it. 4) In models with two solenoid valves, the burner ignites at the first flame level and only after receiving further consent by the CM 32F instrument does it operate at full power. IMPORTANT: If the connection S3 B4 are inverted (with electronic thermostat) = the thermostat does not switch on and does not enable burner operation. If T1 T2 are inverted = the shut-down telltale lights up with the burner operating. If phase and neutral are inverted during supply = the burner ignites the flame and then shuts down (10 seconds). If the burner is reset with the phase signal = the CM 31F/32F control unit is damaged or it will not reset. If the thermostat is fitted to the main line = the combustion chamber is not cooled and damage is caused to this and the fan units. Permanent jumper on terminals S3 and B4 with the heaters switching on and off = same damage as above. Check electrical connections: the electrical connections listed below MUST be complied with. 37

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 9.3 Adjusting the pressure on the solenoid valve and pressure intake 1= Slow ignition regulation 2= Pressure intake downstream 3= Flow rate regulation 4= Pressure intake upstream 5= Second flame level Fig. 29 Solenoid valve for Eolo mods. 20-30-50 Fig. 30 Solenoid valve for Eolo mods. 70-90 N.B. Seal the adjustment component of the gas solenoid valve after regulation. MAINS SUPPLY PRESSURE PRESSURE AT THE BURNER NOZZLE DIAMETER Nominal CONSUMPTION at 15 C and 1013,25 mbar Natural gas H G20 LPG Butane LPG Propane G30 G31 Natural gas H G20 LPG Butane LPG Propane G30 G31 Natural gas H G20 LPG Butane LPG Propane G30 G31 Natural gas H G20 LPG Butane LPG Propane G30 G31 MODEL EOLO 20 AE/AC EOLO 30 AE/AC EOLO 50 AE/AC EOLO 70 AE/AC EOLO 90 AE/AC mbar 20 20 20 20 20 mbar 29 29 29 29 29 mbar 37 37 37 37 37 mbar 11, 0 7, 1 8, 0 7, 1 7, 7 mbar 27, 9 28, 8 28 27, 4 26, 5 mbar 36, 3 36, 3 35 34, 8 33, 5 mm 4, 0 5, 5 7, 0 5, 7 6, 5 mm 2, 3 3, 0 3, 6 2, 9 3, 4 mm 2, 3 3, 0 3, 6 2, 9 3, 4 Nm³/ h 2,33 3,60 5,71 7,41 9,95 Kg/ h 1,73 2,68 4,26 5,52 7,41 Kg/ h 1,71 2,64 4,20 5,44 7,30 38

Gas airtight suspended warm air heaters - EOLO 9.4 Bi-thermostat for adjusting fan start-up SYSTEMA S.p.A. Adjustment levers Automatic/manual operation button Fig. 31 Fan-limit bi-thermostat During normal operation the sensor of the bi-thermostat rotates and, once the temperature set on the set point has been reached, closes the contact that supplies power to the fan. The bi-thermostat has a bi-metal thermostat that operates the fan within 90 seconds of being enabled. IMPORTANT!! When setting temperatures and using the adjustment levers, hold the housing firmly so that it does not rotate and supply power to the sensor. Adjustment levers FAN OFF... Fan shut-down temperature FAN ON... Fan start-up temperature LIMIT OFF... Eolo limit shut-down temperature Automatic/manual operation button... Button for manual operation of the fan 39

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 9.3 Measuring the efficiency Taking a sample of combustions products: Taking a sample of combustion products and measuring of the temperature of these must be performed by means of the special through hole in the combustion product discharge duct. After taking measurements, the operator must close the hole accurately to guarantee the seal of the combustion product discharge duct during normal operation of the system. The person in charge of operation and maintenance of the system must have the hole made by a certified technician or service engineer, unless the heater has already been provided with a specific hole, or one has remained following other measurements taken in compliance with the instructions above, in conformance with the standard UNI 10389. The hole must be located at a distance from the heater outlet equivalent to twice the internal diameter of the combustion products discharge duct. If there is a bend in the duct inside this distance, the hole must be located at a distance from the far end of the bend equivalent to one internal diameter of the combustion products discharge duct. If the concentration of CO detected in the condition of dry and air-less combustion products is greater than 0.1% (0 ppm) and the operator or service engineer cannot reduce it to below this value, the combustion test must be considered as failed, notwithstanding the measured value of combustion efficiency. NOTE If heat recovery systems are fitted downstream of the heater, the hole must be located on the stretch of the combustion products discharge duct below the recover systems; this is the case for a metal fume duct, without insulation and located inside the room (see fig. 29a), that provides the room with heat either through convection and irradiation. B COMBUSTION ANALYSER Fig. 32 Hole for taking samples for combustion analysis with heat recovery systems (point B) 9.3.2 Measuring the temperature of combustion air This must be performed in a suitable point of the combustion air supply duct. After taking measurements, the operator must close the hole accurately to guarantee the seal of the duct during normal operation of the system. 40

Gas airtight suspended warm air heaters - EOLO 10 MAINTENANCE 10.1 Gas conversion SYSTEMA S.p.A. The conversion must be performed by professionally qualified personnel responsible for complying with the current safety standards. The manufacturer declines all responsibility in the case of damages caused by erroneous conversion or improper and/or incorrect use of the appliance. 10.1.1 Conversion from Natural Gas to LPG 1) Close the gas supply and disconnect the power supply. 2) Disconnect the combustion torch from the solenoid valve EV1 (30 mm spanner). 3) Unscrew the nozzle (it has a crosswise slot on the head) from inside the torch (see fig. 12 page 18) taking care not to damage the electrodes (ignition and flame detection) located on the head of the torch and relevant wires. 4) Replace with the nozzle in the conversion kit after checking that the diameter corresponds to the one given on the ratings plate. 5) Connect and clamp the torch to the solenoid valve. 6) Adjust the burner pressure with the pressure regulator of the solenoid valve, turning the screw (3) in fig. 30 on page 38: exclude the pressure regulator of the solenoid valve by clamping the screw (3) in a clockwise direction (+). 7) Check that the supply pressure to the burner measured at point (2) figs. 29-30 page 38, corresponds to the ratings plate value. (*) 8) Check the gas seal on the threaded joints. 9) Affix the label ( Appliance regulated for ) indicating the new type of gas to the plate provided on the appliance. Seal the gas valve adjustment component after regulation. (*) For LPG (Butane G30/Propane G31) gas, a stage I pressure reducer must be installed in the vicinity of the tank to reduce the pressure to 1.5 bar; another stage II pressure reducer must be installed on the main outside line beside the building to reduce the pressure to the values indicated on page 38. On models EOLO 70/EOLO 90 Models Eolo 70 and Eolo 90 are provided with a second solenoid valve (see fig. 30 page 38). Change the nozzle on the second solenoid valve as follows: 1) Disconnect the tube (5) from the solenoid valve EV2 (30 mm spanner), (fig. 30 page 38). 2) Unscrew the nozzle (it has a crosswise slot on the head) from inside the extension connected to the tube (5). 3) Replace with the nozzle in the conversion kit after checking that the diameter corresponds to the one given on the ratings plate. 4) Connect and clamp the tube (5) to the solenoid valve EV2. 5) Adjust the burner pressure with the pressure regulator of the solenoid valve, turning the screw (3) in fig. 30 on page 38: exclude the pressure regulator of the solenoid valve by clamping the screw (3) in a clockwise direction (+). 6) Check that the supply pressure to the burner measured at point (2) figs. 29-30 page 38, corresponds to the ratings plate value. (*) 7) Check the gas seal on the threaded joints. 41

SYSTEMA S.p.A. Gas airtight suspended warm air heaters - EOLO 8) Affix the label ( Appliance regulated for ) indicating the new type of gas to the plate provided on the appliance. Seal the gas valve adjustment component after regulation. (*) For LPG (Butane G30/Propane G31) gas, a stage I pressure reducer must be installed in the vicinity of the tank to reduce the pressure to 1.5 bar; another stage II pressure reducer must be installed on the main outside line beside the building to reduce the pressure to the values indicated on page 39. 10.1.2Conversion from LPG to Natural Gas 1) Close the gas supply tap and disconnect the power supply. 2) Disconnect the combustion torch from the solenoid valve EV1 (30 mm spanner). 3) Unscrew the nozzle (it has a crosswise slot on the head) from inside the torch (see fig. 12 page 18) taking care not to damage the electrodes (ignition and flame detection) located on the head of the torch and relevant wires. 4) Replace with the nozzle in the conversion kit after checking that the diameter corresponds to the one given on the ratings plate. 5) Connect and clamp the torch to the solenoid valve. 6) Adjust the burner pressure with the pressure regulator of the solenoid valve, turning the screw (3) in fig. 30 on page 38. 7) Start up the appliance and check that the supply pressure to the burner measured at point (2) figs. 29-30 page 38 corresponds to the ratings plate value. 8) Check the gas seal on the threaded joints. 9) Affix the label ( Appliance regulated for ) indicating the new type of gas to the plate provided on the appliance. Seal the gas valve adjustment component after regulation. On models EOLO 70/EOLO 90 Models Eolo 70 and Eolo 90 are provided with a second solenoid valve (see fig. 30 page 38). Change the nozzle on the second solenoid valve as follows: 1) Disconnect the tube (5) from the solenoid valve EV2 (30 mm spanner), (fig. 30 page 38). 2) Unscrew the nozzle (it has a crosswise slot on the head) from inside the extension connected to the tube (5). 3) Replace with the nozzle in the conversion kit after checking that the diameter corresponds to the one given on the ratings plate. 4) Connect and clamp the tube (5) to the solenoid valve EV2. 5) Adjust the burner pressure with the pressure regulator of the solenoid valve, turning the screw (3) in fig. 30 on page 38. 6) Start up the appliance and check that the supply pressure to the burner measured at point (2) figs. 29-30 page 38, corresponds to the ratings plate value. 7) Check the gas seal on the threaded joints. 8) Affix the label ( Appliance regulated for ) indicating the new type of gas to the plate provided on the appliance. Seal the gas valve adjustment component after regulation. 42

Gas airtight suspended warm air heaters - EOLO 10.2 Operating faults SYSTEMA S.p.A. FAULT CAUSE REMEDY a )p ha se a nd ne utra l p o we r supply inverted. a)invert the connections. b )Insufficient earth connection b)check the earth connection. The burner ignites and shuts down after a few seconds. c)detection electrode or plug positioned incorrectly d)control instrument fault c)electrode position = 11 mm from the plate (see diagram inside this manual). d)replace spare!!. instrument with original e )Air in gas pipes e)bleed the air. f)incorrect gas pressure f)check the pressure with the value s on the ratings plate. Seal the gas valve adjustment component after regulation. a )no gas to the burner. a)check the supply line. The exhaust fan motor starts up, the control unit then attempts ignition but the combustion torch does not ignite. The up. fume exhaust fan does not start b)the coil of the solenoid valve is not triggered by cut-out of the air pressure switch. c)the coil faulty. of the solenoid valve is d)excessive natural gas pressure to the nozzle. a)no power supply. b)the motor is c)the capacitor is faulty. faulty. d)the motor fan is caught up. e)the pressure switch wires are inverted. b)c he ck the conne ction of the silicone tube and air pressure switch operation. c)te st using a scre wdrive r; the screwdriver is attracted by the coil during start-up. d)set it to the ratings plate value. a)check the position of the switche s on the control board and switch board. b)check fan operation apart; if it is broke n re place with an original spare. c)replace with a capacitor same specifications. d)free the fan with the e)connect the wires correctly (see diagram pp. 35.36) The exhaust fan motor starts up, the control unit then attempts ignition, the solenoid valve opens but the torch does not ignite. a)check gas that the torch receives b )the i g ni ti o n e le c tro d e positioned incorrectly. i s a)bleed any air from the system, if this is new. b)position it 5 mm from the plate (see diagram in this manual) c )The gas pressure is too high c)set it to the rating plate values. The exhaust fan motor starts up but the control unit does not send the signal to the torch and solenoid valve. a )d uri ng i ni ti a l te s ti ng the instrument found the pressure switch contacts closed (glued). b)the control instrument is faulty. a)replace the pressure switch with an original spare!! with the same regulation settings. b)replace the original spare!! instrument with an 43

SYSTEMA S.p.A. 11 WARRANTY 11.1 Subject-matter and duration of the warranty Gas airtight suspended warm air heaters - EOLO 1) The Warranty is limited to faults in the material or machining of components supplied by SYSTEMA. In the event of a fault in the material or machining, SYSTEMA shall repair or replace faulty parts exworks free of charge. ALL OTHER FORMS OF WARRANTY OR COMPENSATION, LEGAL OR CONVENTIONAL, ARE EXPRESSLY EXCLUDED. Replaced parts shall be returned immediately to SYSTEMA, free at its works in S. Giustina in Colle (PD), by and to the expense of the user. In the event of operations covered by warranty, the user shall be charged the fixed call-out fee and refund for mileage in the event of the place of the operation being over 10 kilometres from the Service Centre. 2) The Warranty becomes valid as from Initial ignition, provided that this is performed within 6 (six) months of the date on which the appliance is purchased by the user. In any case, the Warranty shall expire 18 (eighteen) months from the date on which the SYSTEMA invoice is issued. 3) Any replacement of faulty parts (or the entire Appliance) shall not extend the original expiry terms of the Warranty. The Warranty on replaced parts shall expire on the same date as the expiry date of the Appliance Warranty. 4) The duration of the warranty shall be 1 (one) year for each component of the appliance. 11.2 Exclusions from the warranty 1) The Warranty is not valid in the case of: a) Defects that cannot be attributed to faulty materials or machining, without limits: - breakages during transport; - non-compliance of the system with local laws and regulations in force; - failure to comply with the installation instructions set down in the technical notes supplied with the Appliance and/or the rules of correct technique; - damage caused by accidents in general, fires or negligence that cannot be attributed to SYSTEMA. b) Tampering or faults due to operations performed by unauthorized personnel. c) Defects caused by faults concerning the electrical or gas supply mains. d) Failures caused by: incorrect maintenance, negligence or improper use, variations in the power supply voltage, dampness and dust in the rooms, incorrect dimensioning and/or faulty execution of installation. e) Corrosion or breakage caused by: stray currents, condensation, overheating caused by incorrect regulation of the pressure of supply gas or to the burner, or the use of gas with different heating specifications than the rating plate values. f) Use of non-original spare parts or parts not authorised by SYSTEMA. g) Normal wear and tear. h) Products not correctly cared for or stored. 2) Moreover, the Warranty is not valid if: a) payment for the Appliance was not effected within the terms established in the contract. b) Initial ignition was not effected by the Service Centre and/or its copy of the Warranty duly compiled and signed in all parts was not received. c) The user did not report the fault within 10 days of discovering it. 44

Gas airtight suspended warm air heaters - EOLO SYSTEMA S.p.A. 11.3 Competence 1) Requests for operations under Warranty must be submitted, subject to forfeiture, to the Service Centre that performed initial ignition. The user must, in this case, present the Certificate of Warranty to the Service Centre. 2) The Service Centre shall perform operations according to its organizational requirements, during normal working hours. 11.4 Operativeness and efficacy of the warranty 1) In order for the warranty to become operative and efficacious the user must: a) Request the name of the Service Centre for Initial ignition from its installer. b) Present the Service Centre personnel with the Certificate of Warranty, compile all parts of this and ask the Service Centre to stamp and sign it in the specific spaces. 11.5 Responsibility The customer shall exonerate the supplier from all responsibility for accidents or damages to the machines or systems during operation. The supplier shall be liable to the purchaser only within the limits of the warranty obligation specified above. 11.6 Legal disputes Territorial competence and rights of the parties The Court of Padua is established as the competent court, also in the event of actions connected to or called for by warranty. Outstanding disputes do not exonerate the customer from the obligation to make payments, which must be made according to the contract, until the final ruling by the Judicial Authority. 12 SETTING ASIDE If the appliance is to be set aside for a lengthy period of time, the following operations must be performed: Turn the master switch to 0 and disconnect the appliance from the power supply. Close the gas supply valve and disconnect the appliance from the gas mains. In the case of change in ownership or a new tenant, give all documents regarding the heating system to the new owner/tenant. IMPORTANT!! All disconnection operations must be performed by authorised technical personnel! 45

SYSTEMA S.p.A. 13 NOTES Gas airtight suspended warm air heaters - EOLO 46