PK-N Floor Standing Heater The experience is mixed with technology A solution for any necessity High efficiency Heat exchanger in inox steel
55 PK-N: the heat that lasts in time Apen Group has redesigned the new series of floorstanding heaters PK-N, in order to improve the technical performances and consequently the safety, the efficiency and the quality, the requirements of customized solutions and respect for the environment. The outfit has been improved thanks to the aluminium frames which, placed on the panels, make the geometric figures more harmonious. Therefore they fit in the installation, both industrial and civil. Construction features Models: PKA-N PKE-N PK-N heaters can be supplied in two versions: PKA-N: floor standing warm air heaters for indoorinstallation PKE-N: floor standing warm air heaters for outdoorinstallation The PKE-N heaters differ from the PKA-N in the protecting cover, that guarantees to the burner, the electrical and safety components, inside of it, a complete weather-protection.the panelling internal structure of the whole heater (burner casing included) warrants an IP44 atmospherical protection degree. A) Combustion circuit Stainless steel AISI 430 combustion chamber, with high exchange surface (with higher volume in respect to the thermal load). Thanks to its particular shape, it assures low thermal loads and a uniform heat distribution. Reverse flame combustion chamber, with three pass combustion circuit, completely welded, to assure a long operating life. High efficiency stainless steel AISI 304 heat exchanger constituted by a conic section tube heat exchanger with aerodynamic profile. Patented tube heat exchanger (Patent n MI94U00260). Exchanger tubes and plates are T.I.G. welded. One front and four rear inspection panels on the heat exchanger made in stainless steel AISI 430. Insulation of the inspection panels made in ceramic fibre. Sight glass with combustion chamber pressure tap. Insulation panel for the burner plate made in mineral fibre. PKE-N warm heater with burner casing
Sheet iron Insulating material Pre-coated galvanised sheet iron B) Frame and casing Supporting frame made in aluminium. Double sandwich panels insulated with glass wool to limit the heat losses and improving the efficiency made of: - Insulated panels on the exchanger section with thickness 25 mm, complete with gaskets, made of external pre-coated galvanised sheet iron panel, protected with 1 mm thickness plastic film, insulating material made of glass wool 32 kgm 3, internal panel in galvanised sheet iron 0,6 mm thickness, fixed with rivets on the external panel; - Insulated sandwich panels on the fan section with thickness 25 mm, complete with gaskets, made of: - external panel: pre-coated galvanised sheet iron, protected with plastic film, 1mm thickness.- insulating material made of glass wool 32 kg/m 3 covered on the external side with glass tissue. Fixed to the external panel by means of galvanised sheet iron bars fixed with rivets. Air inlet protected by means of a galvanised steel grille 1,5 mm thickness. Standard location on the right, possibility to change easily to the left. All heaters are equipped with lifting lugs. C) Fan section One or more centrifugal fans according to the heater capacity with low rotation speed, to grant low noise. Double aspiration fans, statically and dynamically balanced, operated by motors, transmissions with belt and pulley (apart from models PK-N032 and PK-N035 at direct transmission). Fan motor protection degree IP54. Fan and motor supporting base in aluminium. For motors from 5,5 kw onwards, starting method star delta. D) Safety devices Fan and limit (manual reset) thermostats. External control board in epoxy powder painted steel, protection degree IP44, in conformity with the existing norms (EN60335-1). It is fitted with: - Main switch with door lock. - Summer/OFF/winter switch. - Fuse, contactor and thermal relay for each fanmotor. - Auxiliary relay. - Power supply signal lamp. - Thermal relay tripped lamp.
55 Working Principles 6 5 4 3 7 1 2 How to choose the right Model Our large range of models can satisfy any requirement: PKA-N: indoor floor standing heater: -13 models with capacity from 26 kw to 920 kw; -three available static pressure configurations, that allow the choice among a total of 37 standard versions. PKE-N outdoor floor standing heater: -13 models with capacity from 26 kw to 920 kw; -two available static pressure configurations, that allow the choice among a total of 24 standard versions. Side Front The working principle of the PK-N Heater is very simple. The ambient air (1) to be heated is sucked by the centrifugal fan (2) through the aspiration grille (3), and it is heated passing on the combustion chamber (4) and on the heat exchanger (5). The hot air (6) is then thrown in the ambient, directly by an outlet plenum, or through a duct system. The heater has the following safety devices: fan thermostat and safety thermostat. All main electrical components are fitted in the electrical board. Upon request, the heater can be supplied with burner (7). POWER CAPACITY RANGE MODELS To choose the right model, the following items must be considered: the use (heating, process plants or other), the kind of operation (seasonal or continuous), the kind of coupled burner (on/off, two stages or modulating)
Available Static Pressures The standard available static pressures are: - version 00A (only for PKA-N), installation with plenum, where there is no need of high air pressure. This allows the use of motor with lower speed, consequently assuring lower running costs, thanks to a saving in the consumption, and higher comfort thanks to the low level noise; - version 10A, with medium available static pressure values, for installation with standard duct systems when no particular pressure is needed; - version 20A, with high available static pressure, for installations with articulated duct systems or with high air speed. - special versions: our technical department is ready to study any case or special working conditions, for example in case of heating coupled with high air flow, low thermal gap and so on. Working Field Each heater has a wide working field, that goes from the minimum power, with a maximum certified efficiency from 93.1% to 94.6%, to the maximum power with a minimum efficiency from 87.5% to 90.8%. The use of an oversized heater with regard to the ambient heat request, allows a higher plant efficiency. As you can see from the following diagram, should the ambient heat request be of 190 kw, using a PKA190N heater, the efficiency is of 90.5%; whereas using a PKA 250N, the efficiency goes up to 92.5%. EFFICIENCY(%) 92.5% 90.5% 3 3 Power (kw) PKA 190N AND PKA 250N WORKING FIELD AVAILABLE STATIC PRESSURES Certified Quality The PK-N heaters are built in conformity with the European Norms PR EN 1020. They are approved by GASTEC with CE mark n. 0694BP0758 according to the Gas Directive 90/396/CEE. They comply with Machines Directive 89/392/EEC, Low Voltage Directive 72/23/EEC, Electro Magnetic Compliance EMC 89/336/CEE. Each heater has been approved to operate with a working field between a minimum and maximum value.
PK-N Installation Thanks to its flexibility, suitableness and possibility of customized installations, the PK-N heater can meet any heating requirement. The following illustrations show the different heater installations. 3 2 1 OUTDOOR INSTALLATION OF PKE-NHEATER WITH DUCT SYSTEM 1) Inlet air duct (where recirculation is allowed) 2) Outlet air duct 3) Inlet air filter VERTICAL AND ORIZONTAL INSTALLATION OF PK-N HEATER 2 1 Accessories On request, the PK-N heaters can be supplied with plenum for the air distribution and air filter for the ambient purification. Distribution plenum The plenum is supplied with bifilar louvers suitable for the use in industrial and commercial environments. The accurate design and manufacturing allow to obtain a plenum with louvers assuring high air delivery with strong air throw and reduced pressure losses. The standard plenum is manufactured with the air throw in three directions: two short sides and one long side. On specific request, it can be supplied with the air throw on two long sides and one short side. INSTALLATION OF PKA-N HEATER IN AMBIENT WITH PLENUM AND FILTER 1) Air inlet filter 2) Air outlet plenum
Distribution plenum Air Filter The air filter has been designed and manufactured in modacrilic fibre, fire-proof class 1, can be used in continuous service up to a maximum temperature of 80 C and has an average efficiency equal to 85% (according to the EN 779 Norm) corresponding to class G3. The air filters, in the standard versions, have been dimensioned to make the aspiration only from one side. In case of particular requirements, for example horizontal or downflow installations, contact CIB Unigas to obtain the right sizing. Saving The PK-N heaters guarantee a real saving according to: installation: if positioned directly in the ambient to be heated with air distribution through plenum, the plant costs are very low; operation: high efficiency and heating of the ambient in short time guarantee efficiency and energy saving; service: the maintenance operations are easy and fast. Maintenance All the maintenance operations are particularly simple and fast and guarantee the heater's efficiency. To reach the heat exchanger, it is sufficient to take off the front inspection panel. The fan cleaning can be made with a compressor and with a vacuum cleaner. The filters can be regenerated through the cleaning with compressed air. It should be noted that in the installations with duct systems, the filter positioned inside can be removed for servicing and maintenance without any need to disconnect the ducts. Discharge The heater is a B23 type, that is an appliance without draught switch and with burner fan before the heat exchanger. The heater can be connected both to flue ducts and chimneys.
Optional Parts PK-N heaters include various optional parts in order to fulfil any kind of projectual need. Componenti The following images present the main accessories. 21 20 19 18 17 16 15 22 14 13 12 11 10 9 8 7 1 Vibration damping joint 2 Fire stop gate 3 Regulation Grid 4 Servomotor for grid 5 Manual grid control 6 Filters 7 Two - phase burner control 8 Control inverter for air flow/air pressure 9 Burner 10 Duct Temperature Probe 11 Rain protection grid 12 Duct adapter ( not included ) 1 2 3 4 5 13 Duct bend ( not included ) 14 Air Plenum 15 Condensate collector 16 90 T Pipe 17 90 Bend 18 Chimney Ring 19 Flue inspection module 20 1 m Straight pipe 21 Chimney cover 22 Tie- wire for mounting the chimney on the heater 6
Technical Features Type PKA/E 032N PKA/E 035N PKA/E 060N PKA/E 100N PKA/E 120N Heat Input kw min. 28,0 28,0 50,3 80,0 80,0 max. 34,8 49,5 86,0 110,7 137,0 Heat Output kw min. 26,1 26,1 46,8 74,6 74,6 max. 31,6 43,3 75,2 100,0 120,1 Efficiency % min. 90,8 87,5 87,5 90,4 87,7 max. 93,2 93,2 93,1 93,2 93,2 Counter Pressure Pa min. 7 7 11 14 14 max. 15 17 25 32 40 Air Flow (15 C e 1013 mbar) m3/h 2700 2700 5000 7300 7300 ΔT Air C min. 26,8 26,8 26,0 28,3 28,3 max. 32,5 44,5 41,7 38,0 45,6 Available Static Pressure Pa vers.00a(1) 90 90 70 80 80 vers.10a 150 150 120 150 150 vers.20a - - 240 270 270 Power Supply V/F/Hz 230/1~/50 230/1~/50 230/1~/50(2) 400/3N~/50 400/3N~/50 Number of Motors x vers.00a 1x0,25 1x0,25 1x0,56 1x1,10 1x1,10 Power Absorbed kw vers.10a 1x0,50 1x0,50 1x1,10 1x1,50 1x1,50 vers.20a - - 1x1,5 1x2,20 1x2,20 Noise Level at 3 m db(a) vers.00a 62 62 65 66 66 vers.10a 63 63 66 69 69 vers.20a 67 70 70 Type PKA/E 140N PKA/E 190N PKA/E 250N PKA/E 320N PKA/E 420N Heat Input kw min. 96,0 125,0 154,0 185,0 260,0 max. 195,0 230,0 310,0 380,0 508,0 Heat Output kw min. 90,1 118,0 145,6 175,1 245,4 max. 171,1 205,9 275,0 335,9 450,0 Efficiency % min. 87,7 89,5 88,7 88,4 88,6 max. 93,9 94,4 94,6 94,6 94,4 Counter Pressure Pa min. 13 10 10 15 28 max. 50 40 50 60 120 Air Flow (15 C e 1013 mbar) m3/h 10500 14000 18000 23000 30500 ΔT Air C min. 23,8 23,4 22,4 21,1 22,3 max. 45,2 40,8 42,4 40,5 40,9 Available Static Pressure Pa vers.00a(1) 70 70 70 70 70 vers.10a 140 150 130 210 180 vers.20a 280 230 250 320 270 Power Supply V/F/Hz 400/3N~/50 400/3N~/50 400/3N~/50(2) 400/3N~/50 400/3N~/50 Number of Motors x vers.00a(1) 1x3,00 1x3,00 2x2,20 2x2,20 2x4,00 Power Absorbed kw vers.10a 1x3,00 1x3,00 2x2,20 2x3,00 2x5,50(3) vers.20a 1x4,00 1x4,00 2x3,00 2x4,00 2x5,50(3) Noise Level at 3 m db(a) vers.00a 65 68 68 68 72 vers.10a 66 72 72 72 75 vers.20a 68 74 74 76 77 Type PKA/E 550N PKA/E 700N PKA/E 900N Heat Input kw min. 320,0 397,0 477,0 max. 670,0 818,0 1028,0 Heat Output kw min. 301,0 375,0 450,0 max. 592,0 730,0 920,0 Efficiency % min. 88,4 94,4 89,5 max. 94,3 89,2 94,4 Counter Pressure Pa min. 21 25 28 max. 110 120 130 Air Flow (15 C e 1013 mbar) m3/h 40000 54000 68500 ΔT Air C min. 21,0 19,9 18,8 max. 41,0 38,8 38,5 Available Static Pressure Pa vers.00a(1) 70 90 90 vers.10a 180 240 260 vers.20a 280 350 400 Power Supply V/F/Hz 400/3N~/50 400/3N~/50 400/3N~/50 Number of Motors x vers.00a(1) 2x3,00 2x4,00 2x5,50(3) Power Absorbed kw vers.10a 2x4,00 2x5,50(3) 2x7,50(3) vers.20a 2x5,50(3) 2x7,50(3) 2x11(3) Noise Level at 3 m db(a) vers.00a 70 70 70 vers.10a 72 72 72 vers.20a 74 74 78 (1) Only for the models PKA-N (2) 400/3N/50 for the models PKA/PKE 060N-10A and PKA/PKE 060N-20A (3) Y/Δ starting method.
Dimensions PKA-N Type Overall Dimensions Suction Throw Chimney Burner Weight L B H Hb A E A D N ØR S ØT Kg PKA032N-035N 750 530 1490-670 590 670 450 1208 120 860 135 116 PKA060N 995 700 1680-915 650 915 620 1417 150 940 135 174 PKA100N-120N 1100 800 2020-1020 800 1020 720 1760 180 1190 135 246 PKA140N 1330 920 2080-1250 800 1250 840 1800 180 1155 190 320 PKA190N 1460 1060 2230-1380 800 1380 980 1960 250 1190 190 382 PKA250N 1750 1140 2330-1670 800 1670 1060 2040 250 1220 190 506 PKA320N 1960 1140 2330-1880 800 1880 1060 2040 250 1180 230 574 PKA420N 2170 1340 2800 1000 2070 900 2070 1240 2480 300 1440 230 902 PKA550N 2600 1340 3170 1290 2500 1190 2500 1240 2800 300 1730 230 1148 PKA700N 2950 1600 3400 1290 2850 1190 2850 1500 2880 350 1790 290 1560 PKA900N 3550 1700 3750 1420 3450 1320 3450 1600 3060 400 1850 290 1940 From the model PKA420N the heaters are supplied in two separate sections: exchanger and fan section. PKE-N Type Overall Dimensions Suction Throw Chimney Burner Burner Box Weight L B H Hb A E A D N ØR S ØT LV I Kg PKE032N-035N 1250 530 1490-670 590 670 450 1208 120 860 135 500 100 148 PKE060N 1495 700 1680-915 650 915 620 1417 150 940 135 500 110 214 PKE100N-120N 1600 800 2020-1020 800 1020 720 1760 180 1190 135 500 150 292 PKE140N 1930 920 2080-1250 800 1250 840 1800 180 1155 190 600 60 378 PKE190N 2190 1060 2230-1380 800 1380 980 1960 250 1190 190 730 150 460 PKE250N 2550 1140 2330-1670 800 1670 1060 2040 250 1220 190 800 100 592 PKE320N 2760 1140 2330-1880 800 1880 1060 2040 250 1180 230 800 100 660 PKE420N 3070 1340 2800 1000 2070 900 2070 1240 2480 300 1440 230 900 220 1006 PKE550N 3600 1340 3170 1290 2500 1190 2500 1240 2800 300 1730 230 1000 220 1284 PKE700N 3950 1600 3400 1290 2850 1190 2850 1500 2880 350 1790 290 1000 220 1710 PKE900N 4550 1700 3750 1420 3450 1320 3450 1600 3060 400 1850 290 1000 200 2110 From the model PKE420N the heaters are supplied in three separate sections: exchanger, fan and burner box section
PK-N Design Your Own Heater Apen Group can meet any design requirements,supplying customized products, as far as air flow, static pressure and size are concerned. Thanks to its production system, to the CAD CAM integration and technologically advanced sheets working machines, Apen Group can satisfy all requirements. On request, we can supply higher heaters with oversize air flow and static pressure for industrial and special applications. PKE-P0A PKE-P0A Heater for Air Houses Thanks to its constant research and development of new heating solutions, Apen Group designed the PKE-N-P0A heaters. They are suitable for heating air houses, load bearings (geodetic), tennis courts, swimming pools, gyms and warehouses.these heaters are supplied equipped with: flue chimney made of: T-pipe, 1m long piping, raincap, condense tap; fire-stop lock REI 120 with wired micro-switch; blast tube with adapter rectangular - circular; manual setting recirculation louver; overpressure grille with gravity lock; room thermostat with feeler on air inlet position; supporting feet height 100 mm; Fumes-stop lock with manual reset can be supplied on request. Type PKE PKE PKE PKE PKE PKE 100 N-P0A 120N-P0A 140N-P0A 190N-P0A 250N-P0A 320N-P0A Heat input kw min. 80,0 80,0 96,0 125,0 154,0 185,0 max. 110,7 137,0 195,0 230,0 310,0 380,0 Heat output kw min. 74,6 74,6 90,1 118,0 145,6 175,1 max. 100,0 120,1 171,1 205,9 275,0 335,9 Air Flow m3/h 7300 7300 9800 13400 18200 21800 Static pressure Pa 300 300 300 300 300 300 Power Absorbed mot. kw 3 3 4 4 7,5 7,5 Type Overall dimensions Suction and Throw Chimney Burner Box Weight L B H ØA ØM E G TF BC SR ØR LG LV I Kg PKE100N-P0A 1955 800 2020 500 500 750 305 500 450 100 180 1455 500 150 415 PKE120N-P0A 1955 800 2020 500 500 750 305 500 450 100 180 1455 500 150 415 PKE140N-P0A 2170 920 2080 600 600 865 365 500 450 100 180 1570 600 60 525 PKE190N-P0A 2480 1060 2230 600 700 925 385 500 450 100 250 1750 730 150 650 PKE250N-P0A 2760 1140 2330 600 700 1110 410 500 450 100 250 1960 800 100 845 PKE320N-P0A 3110 1140 2510 900 900 1135 515 500 450 250 250 2310 800 100 950
Application Fields Hangars, industrial ambients, warehouses Supermarkets and stores Office Buildings Commercial centres, meeting rooms and cinemas Churches and recreation centres Sport halls, gyms, swimming-pools and airhouses Visit our web site: www.apengroup.com APEN GROUP s.p.a. 20060 Pessano con Bornago (MI) - Italy - Via Provinciale, 85 Tel. +39-02-95.96.93.1 Fax +39-02-95.74.27.58 http://www.apengroup.com E-mail: apen@apengroup.com Cod. X00338GB ed 06/02 - Specifications in this catalogue are subject to change without notice, in order that Apen Group may bring the latest innovation to its costumers.