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FLOOR STANDING HEATER PK-N

A NEW HEATER

Apen Group has redesigned the new series of floorstanding heaters PK-N, in order to improve thetechnical performances and consequently the safety,the efficiency and the quality, meeting therequirements of customized solutions and respectfor the environment.

The outfit has been improved thanks to thealuminium frames that, placed on the panels, makethe geometric figures more harmonious.

Therefore they fit in the installation ambient, bothindustrial and civil.

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 theprotecting cover, that guarantees to the burner, theelectrical and safety components, inside of it, acomplete weather-protection.

The panelling structure of the whole heater (burnercasing included) warrants an IP44 protectiondegree.

PK-N: THE HEAT THATLASTS IN TIME

CONSTRUCTION FEATURES

PKA-N HEATER

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• Stainless steel AISI 430 combustion chamber ,with high exchange surface (with higher volume inrespect to the thermal load). Thanks to its particularshape, it assures low thermal loads and an uniformheat distribution.

• Reverse flame combustion chamber , with threepass combustion circuit, completely welded, toassure a long operating life.

• High efficiency stainless steel AISI 304 heatexchanger constituted by a conic section tube heatexchanger with aerodynamic profile.

• Patented tube heat exchanger(Patent n° MI94U00260 dd. 08th April 1994).

• Exchanger tubes and plates are T.I.G. welded.

• One front and four rear inspection panels on theheat exchanger made in stainless steel AISI 430.

• Insulation of the inspection panels made inceramic fibre .

• Sight glass with combustion chamber pressuretap.

• Insulation panel for the burner plate made inmineral fibre.

A) Combustion circuit

PKE-N HEATER

BURNERBOX

=

B) ) Frame and casing

• Supporting frame made in aluminium.

• Double sandwich panels insulated with glass woolto limit the heat losses and improving the efficiencymade of:

- Insulated panels on the exchanger section withthickness 25 mm, complete with gaskets, made of- external panel: pre-coated galvanised sheetiron, protected with plastic film, 1mm thickness- insulating material made of glass wool 32 kgm³- internal panel: galvanised sheet iron, 0,6 mmthickness, fixed with rivets on the external panel;

- Insulated sandwich panels on the fan sectionwith thickness 25 mm, complete with gaskets,made of:- external panel: pre-coated galvanised sheetiron, protected with plastic film, 1mm thickness.- insulating material made of glass wool 32 kg/m³covered on the external side with glass tissue.Fixed to the external panel by means ofgalvanised sheet iron bars fixed with rivets.

• Air inlet protected by means of a galvanised steelgrille 1,5 mm thickness. Standard location on theright, possibility to change easily to the left.

• All heaters are equipped with lifting lugs.

C) Fan section

• One or more centrifugal fans according to theheater capacity with low rotation speed, to grantlow noise.

• Double aspiration fans, statically anddynamically balanced, operated by motors,transmissions with belt and pulley (apart frommodels PK-N032 and PK-N035 at directtransmission)

• Fan motor protection degree IP54.

• Fan and motor supporting base in aluminium.

• For motors from 5,5 kW onwards, starting methodstar delta.

D) Safety devices

• Fan and limit (manual reset) thermostats .

• External control board in epoxy powder paintedsteel, protection degree IP44, in conformity with theexisting 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.

INSULATING MATERIAL

PRE-COATED GALVANISEDSHEET IRON

SHEET IRON

CAPACITYThe working principle of the PK-N Heater is verysimple.

The ambient air (7) to be heated is sucked by thecentrifugal fan (5) through the aspiration grille (1),and it is heated (8) passing on the combustionchamber (3) and on the heat exchanger (4).

The hot air (9) is then thrown in the ambient, directlyby an outlet plenum, or through a duct system.

The heater has the following safety devices(10):fan thermostat and safety thermostat.

All main electrical components are fitted in theelectrical board (6) .

Upon request, the heater can be supplied withburner (2).

Front Side

WORKING PRINCIPLES

HOW TO CHOOSE THERIGHT MODEL

Our large range of models can satisfy anyrequirement:

• PKA-N: indoor floor standing heater:

-13 models with capacity from 26 kW to 920 kW;

-three available static pressure configurations, thatallow the choice among a total of 37 standardversions.

• PKE-N outdoor floor standing heater:

-13 models with capacity from 26kW to 920 kW;

-two available static pressure configurations, thatallow the choice among a total of 24 standardversions.

CAPACITY RANGE

To choose the right model, the following itemsmust 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 ormodulating)

MODELS

AVAILABLE STATICPRESSURES

The standard available static pressures are:

-version 00A (only for PKA-N), installation withplenum, where there is no need of high air pressure.This allows the use of motor with lower speed,consequently assuring lower running costs, thanksto a saving in the consumption, and higher comfortthanks to the low level noise;

-version 10A, with medium available static pressurevalues, for installation with duct systems when noparticular pressure is needed;-version 20A , with high available static pressure, forinstallations with articulated duct systems or withhigh air speed.

AVAILABLE STATIC PRESSURE

WORKING FIELD

Each heater has a wide working field, that goes fromthe minimum power, with a maximum certifiedefficiency from 93.1% to 94.6%, to the maximumpower with a minimum efficiency from 87.5% to90.8%.

The use of an oversized heater with regard to theambient heat request, allows a higher plantefficiency. As you can see from the followingdiagram, should the ambient heat request be of 190kW, using a PKA190N heater, the efficiency is of90.5%; whereas using a PKA 250N, the efficiencygoes up to 92.5%.

CAPACITY (kW)

EFFICIENCY (%)

CERTIFIED QUALITY

The PK-N heaters are built in conformity with theEuropean Norms PR EN 1020.

They are approved by GASTEC with CE markn. 0063AQ0300 according to the Gas Directive 90/396/CEE.

They comply with Machines Directive 89/392/EEC,Low Voltage Directive 72/23/EEC, Electro MagneticCompliance EMC 89/336/CEE.

Each heater has been approved to operate witha working field between a minimum andmaximum value .

WORKING FIELD PKA190N PKA250N

90.5%

92.5%

3 3

ACCESSORIES

PK-N: INSTALLATION

Thanks to its flexibility, suitableness and possibilityof customized installations, the PK-N heater canmeet any heating requirement.

The following illustrations show the differentheater installations.

VERTICAL AND ORIZONTAL INSTALLATION OF

PK-N HEATER

INSTALLATION OF PKA-N HEATER IN AMBIENT

WITH PLENUM AND FILTER

1 Air inlet filter2 Air outlet plenum

On request, the PK-N heaters can be supplied withplenum for the air distribution and air filter for theambient purification.

Distribution plenum

The plenum is supplied with bifilar louvers suitablefor the use in industrial and commercialenvironments.The accurate design and manufacturing allow toobtain a plenum with louvers assuring high airdelivery with strong air throw and reduced pressurelosses.

The standard plenum is manufactured with the airthrow in three directions: two short sides and onelong side.

On specific request, it can be supplied with the airthrow on two long sides and one short side.

OUTDOOR INSTALLATION OF PKE-NHEATER WITH DUCT SYSTEM

1 Inlet air duct (where recirculation is allowed)2 Outlet air duct3 Inlet air filter

Discharge

The heater is a B23 type, that is an appliancewithout draught switch and with burner fan beforethe heat exchanger.

The heater can be connected both to flue ducts andchimneys.

SAVING

The PK-N heaters guarantee a real savingaccording to:

• installation: if positioned directly in the ambient tobe heated with air distribution through plenum, theplant costs are very low;

• operation: high efficiency and heating of theambient in short time guarantee efficiency andenergy saving;

• service: the maintenance operations are easy andfast.

MAINTENANCE

All the maintenance operations are particularlysimple and fast and guarantee the heater'sefficiency.

To reach the heat exchanger, it is sufficient to takeoff the front inspection panel.

The fan cleaning can be made with a compressorand with a vacuum cleaner.

The filters can be regenerated through thecleaning with compressed air.

It should be noted that in the installations withduct systems, the filter positioned inside can beremoved for servicing and maintenance withoutany need to disconnect the ducts.

Air filter

The air filter has been designed and manufacturedin modacrilic fibre, fire-proof class 1, can be used incontinuous service up to a maximum temperature of80°C and has an average efficiency equal to 85%(according to the EN 779 Norm) corresponding toclass G3.

The air filters, in the standard versions, have beendimensioned to make the aspiration only from oneside.In case of particular requirements, for examplehorizontal or downflow installations, contact ApenGroup to obtain the right sizing.

In case of particular needs, Apen Group can designand manufacture plenum custom-made.

BURNER -HEATERCOUPLING

The PK-N heaters work with gas or gas-oil blown airburners .

Apen Group can supply a wide range of burnerswith the heater.

All the PK-N heaters have been designed,manufactured and tested to be coupled with theburner manufactured by the main Companies onthe market.

Further on, drawings with the relative size of plateand necks.

BURNER NECK

PKA/E PKA/E PKA/E PKA/E PKA/E PKA/E PKA/E PKA/E PKA/E PKA/E PKA/E PKA/E PKA/ETYPE 032N 035N 060N 100N 120N 140N 190N 250N 320N 420N 550N 700N 900NX 135 135 180 180 180 300 300 300 300 300 300 400 400P 150 150 150 150 150 175 175 175 230 230 230 280 280ØC 115 115 133 133 133 160 160 160 220 220 220 280 280E 120 120 120 120 120 158 158 158 190 190 190 220 220ØD M8 M8 M8 M8 M8 M8 M8 M8 M10 M10 M10 M10 M10ØM 170 170 170 170 170 220 220 220 270 270 270 312 312A 270 270 270 270 270 414 414 414 484 484 484 560 560B 382 382 382 382 382 454 454 454 484 484 484 590 590

The dimension X shows the minimum needed length for the burner neck. Lengths notover 50% are allowed.

REFERENCE DIMENSIONS FOR THE BURNER COUPLING

BURNER PLATE

Type PKA/E 032N PKA/E 035N PKA/E 060N PKA/E 100N PKA/E 120NHeat Input kW min. 28.0 28.0 50.3 80.0 80.0

max. 34.8 49.5 86.0 110.7 137.0Heat Output kW min 26.1 26.1 46.8 74.6 74.6

max. 31.6 43.3 75.2 100.0 120.1Efficiency % max 93.2 93.2 93.1 93.2 93.2

min. 90.8 87.5 87.5 90.4 87.7Counter-Pressure Pa min. 7 7 11 14 14

max. 15 17 25 32 40Air Flow (15°C 1013mbar) m3/h 2700 2700 5000 7300 7300∆T Air °C min. 26.8 26.8 26.0 28.3 28.3

max. 32.5 44.5 41.7 38.0 45.6Available Static Pressure Pa vers.00A(1) 90 90 70 80 80

vers.10A 150 150 120 150 150vers. 20A - - 240 270 270

Power Supply V/F/Hz 230/1~/50 230/1~/50 230/1~/50(2) 400/3N~/50 400/3N~/50Number of Motors x vers.00A(1) 1x0.25 1x0.25 1x0.56 1x1.10 1x1.10Power Absorbed kW vers.10A 1x0.50 1x0.50 1x0.75 1x1.50 1x1.50

vers. 20A - - 1x1.10 1x2.20 1x2.20Noise Level at 3m dB(A) vers.00A 62 62 65 66 66

vers.10A 63 63 66 69 69vers.20A - - 67 70 70

Type PKA/E 140N PKA/E 190N PKA/E 250N PKA/E 320N PKA/E 420NHeat Input kW min. 96.0 125.0 154.0 185.0 260.0

max. 195.0 230.0 310.0 380.0 508.0Heat Output kW min 90.1 118.0 145.6 175.1 245.4

max. 171.1 205.9 275.0 335.9 450.0Efficiency % max 93.9 94.4 94.6 94.6 94.4

min. 87.7 89.5 88.7 88.4 88.6Counter-Pressure Pa min. 13 10 10 15 28

max. 50 40 50 60 120Air Flow (15°C 1013mbar) m3/h 10500 14000 18000 23000 30500∆T Air °C min. 23.8 23.4 22.4 21.1 22.3

max. 45.2 40.8 42.4 40.5 40.9Available Static Pressure Pa vers.00A(1) 70 70 70 70 70

vers.10A 140 150 130 210 180vers. 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~/50Number of Motors x vers.00A(1) 1x3.00 1x3.00 2x2.20 2x2.20 2x4.00Power 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 3m dB(A) vers.00A 65 68 68 68 72vers.10A 66 72 72 72 75vers. 20A 68 74 74 76 77

Type PKA/E 550N PKA/E 700N PKA/E 900NHeat Input kW min. 320.0 397.0 477.0

max. 670.0 818.0 1028.0Heat Output kW min 301.0 375.0 450.0

max. 592.0 730.0 920.0Efficiency % max 94.3 89.2 94.4

min. 88.4 94.4 89.5Counter-Pressure Pa min. 21 25 28

max. 110 120 130Air Flow (15°C 1013mbar) m3/h 40000 54000 68500∆T Air °C min. 21.0 19.9 18.8

max. 41.0 38.8 38.5Available Static Pressure Pa vers.00A(1) 70 90 90

vers.10A 180 240 260vers. 20A 280 350 400

Power Supply V/F/Hz 400/3N~/50 400/3N~/50 400/3N~/50Number 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 3m dB(A) vers.00A 70 70 70vers.10A 72 72 72vers. 20A 74 74 78

(1) Only for the models PKA-N.(2) 400/3N/50 for the models PKA/PKE060N -10A and PKA/PKE060N-20A.(3) Y/∆∆∆∆∆ starting method.

TECHNICAL FEATURES

L B H Hb A E A D N ØR S ØT KgPKA032N-035N 750 530 1490 - 670 590 670 450 1208 120 860 135 116PKA060N 995 700 1680 - 915 650 915 620 1417 150 940 135 174PKA100N-120N 1100 800 2020 - 1020 800 1020 720 1760 180 1190 135 246PKA140N 1330 920 2080 - 1250 800 1250 840 1800 180 1155 190 320PKA190N 1460 1060 2230 - 1380 800 1380 980 1960 250 1190 190 382PKA250N 1750 1140 2330 - 1670 800 1670 1060 2040 250 1220 190 506PKA320N 1960 1140 2330 - 1880 800 1880 1060 2040 250 1180 230 574PKA420N 2170 1340 2800 1000 2070 900 2070 1240 2480 300 1440 230 902PKA550N 2600 1340 3170 1290 2500 1190 2500 1240 2800 300 1730 230 1148PKA700N 2950 1600 3400 1290 2850 1190 2850 1500 2880 350 1790 290 1560PKA900N 3550 1700 3750 1420 3450 1320 3450 1600 3060 400 1850 290 2020

Type Overall Dimensions Suction Throw Chimney Burner Weight

From the model PKA420N the heaters are supplied in two separate sections: exchanger and fan section.

L B H Hb A E A D N ØR S ØT LV I KgPKE032N-035N 1250 530 1490 - 670 590 670 450 1208 120 860 135 500 100 148PKE060N 1495 700 1680 - 915 650 915 620 1417 150 940 135 500 110 214PKE100N-120N 1600 800 2020 - 1020 800 1020 720 1760 180 1190 135 500 150 292PKE140N 1930 920 2080 - 1250 800 1250 840 1800 180 1155 190 600 60 378PKE190N 2190 1060 2230 - 1380 800 1380 980 1960 250 1190 190 730 150 460PKE250N 2550 1140 2330 - 1670 800 1670 1060 2040 250 1220 190 800 100 592PKE320N 2760 1140 2330 - 1880 800 1880 1060 2040 250 1180 230 800 100 660PKE420N 3070 1340 2800 1000 2070 900 2070 1240 2480 300 1440 230 900 220 1006PKE550N 3500 1340 3170 1290 2500 1190 2500 1240 2800 300 1730 230 1000 220 1284PKE700N 3950 1600 3400 1290 2850 1190 2850 1500 2880 350 1790 290 1000 220 -PKE900N 4550 1700 3750 1420 3450 1320 3450 1600 3060 400 1850 290 1000 200 -

DIMENSIONS

Type Overall Dimensions Suction Throw Chimney Burner Burner Box Weight

PKA-N

PKE-N

From the model PKE420N the heaters are supplied in three separate sections: exchanger, fan and burner box section

Thanks to its constant research and development ofnew heating solutions, Apen Group designed thePKE-N-P0A heaters. They are suitable for heatingairhouses, 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;

PKE-N-P0A HEATER FORAIRHOUSES

L B H ØA ØM E G TF BC SR ØR LG LV I KGPKE100N-P0A - - - - - - - - - - - - - - -PKE120N-P0A - - - - - - - - - - - - - - -PKE140N-P0A 2170 920 2080 600 600 865 365 500 450 100 180 1570 600 60 525PKE190N-P0A 2480 1060 2230 600 700 925 385 500 450 100 250 1750 730 150 650PKE250N-P0A 2760 1140 2330 600 700 1110 410 500 450 100 250 1960 800 100 845PKE320N-P0A 3110 1140 2510 900 900 1135 515 500 450 250 250 2310 800 100 950

Type Overall Dimensions Suction and Throw Chimney Burner Box Weight

Type PKE PKE PKE PKE PKE PKE100N-P0A 120N-P0A 140N-P0A 190N-P0A 250N-P0A 320N-P0A

Heat Input kW min. 80.0 80.0 96.0 125.0 154.0 185.0max. 110.7 137.0 195.0 230.0 310.0 380.0

Heat Output kW min 74.6 74.6 90.1 118.0 145.6 175.1max. 100.0 120.1 171.1 205.9 275.0 335.9

Air Flow m3/h 7300 7300 9800 13400 18200 21800Static Pressure Pa 300 300 300 300 300 300Power Absorbed Mot. kW. 3 3 4 4 7.5 7.5

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 CAMintegration and technologically advanced sheetsworking machines, Apen Group can satisfy allrequirements.

On request, we can supply higher heaters withoversize air flow and static pressure for industrialand special applications.

• manual setting recirculationlouver;

• overpressure grille with gravitylock;

• room thermostat with feeler onair inlet position;

• supporting feet height 100mm;

Fumes-stop lock with manualreset can be supplied onrequest.

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APEN GROUP s.p.a.20060 Pessano con Bornago - (Mi) - ItalyVia Provinciale, 85Tel. +39-02-95.96.93.1Fax +39-02-95.74.27.58Internet: http://www.apengroup.comE-mail: [email protected]

Export Department:Tel. +39-02-95.96.93.555

APPLICATION FIELDS

HANGARS, INDUSTRIAL AMBIENTSWAREHOUSES

CHURCHES AND RECREATION CENTRES

COMMERCIAL CENTRES, MEETING ROOMS AND

CINEMAS

OFFICE BUILDINGS

SPORT HALLS , GYMS, SWIMMING POOLS AND

AIRHOUSES

SUPERMARKETS AND STORES