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Nvx Trade Brochure 5.8 Version: 5.8 (effective As Of Dec 2015

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NVx Suspended Gas Unit Heater Range Industrial & Commercial Heating Systems. w w w. p ow r m a t i c. co. u k H E AT I N G // V E N T I L AT I O N // AIR CONDITIONING // OEM PRODUCTS NVx Overview Burners Multi in-shot burners matched to each tube assembly and manifolded to a common gas valve and ignition system, itself complete with flame monitoring and safety controls and supplied ready for use with natural gas (G20). Alternative LPG propane (G31) firing available to order. Models Available • NVx F - Axial Fan Crossflow Units Air Movement • NVx Duo - Axial Fan Bi-Directional Units Axial fan heaters are, dependent upon model, fitted with either single of multiple fan sets and discharge warmed air directly into the heated space via adjustable louvred horizontal grilles. Centrifugal fan models are fitted with the centrifugal fan mounted directly to the heater and discharge via a duct outlet spigot mounted to the front of the heater. • NVx V - Axial Fan Downflow Units • NVx C - Centrifugal Close Coupled Fan Units • NVx D - Ducted Heat Module (no fan) Installer Friendly • New compact model • Downflow & bi-directional models available • Horizontal wall exit flue discharge option (no roof work) • Fan assisted flue that can be room sealed • Interchangeable top or rear flue/combustion air spigot positions • Centrifugal fan option Peace Of Mind • More Than Sixty Years Experience in Warm Air • 2 Year Parts And One Year Labour Guarantee • 10 Year Sliding Scale Time Related Heat Exchanger Warranty Controls As standard, Powrmatic heaters are supplied with high temperature limit protection as well as connections for heat and, where applicable, fan-only operation. For enhanced control the heaters may be connected to one of our compatible environmental control stations. These are available in three options: Application and Configuration The NVx range of gas fired unit heaters comprises 11 models with outputs ranging from 15 kW to 140 kW. The heaters are typically installed directly into the space to be heated with ducted applications satisfied using the centrifugal fan option. Suitable for either natural or LPG gases, heaters can be specified/arranged for on/off, high/low or modulated heat outputs. •MC200V3 (control of single units) Tamper-proof digital control featuring optimised start/stop, digital time switch, electronic day and frost protection sensors. Remote temperature sensor option available. •MC300 Multi (control of multiple units) The MC300 multi is functionally identical to the MC200V3 with the added ability to control up to five heaters from a master MC300 control. For ease of installation and to reduce installation time and cost slave pcbs are factory fitted with connections between master and slave enabled with low voltage control cable. Efficiencies Favourable levels of fuel usage and reduced emissions are a key element of NVx heater design. Additionally, all heaters have efficiencies which meet or exceed the requirements of current Building Regulations. Efficiencies can be further enhanced with the selection of the modulating burner option. •Powrtrol (control of single units) As an alternative to the MC control units, Powrtrol control stations provide a digital time switch with mechanical day and frost protection thermostats and a switched fan-only option for summer operation. Heaters controlled using Powrtrol do not qualify for Enhanced Capital Allowances. Cabinet The heater unit is of unitary construction and provided with a separate compartment with a full width hinged and lift-off door giving easy access to heater function controls, gas valve and burner. The cabinet is finished with durable epoxy powder coat stove baked paint. Note: Interconnecting wiring for all controls is the responsibility of the installer. Visit www.powrmatic.co.uk for more information. Heat Exchanger Four pass tubular assembly manufactured from aluminised steel formed, swaged and expanded without recourse to stress inducing welding. 409 and 316 grade stainless steel options available. Approvals All Powrmatic heaters are type tested to meet the stringent requirements the Gas Directive and are CE approved. 2 Duties Model Output Input (nett CV) Airflow Volume 120 140 90 120 140 32.60 43.48 54.23 65.60 81.30 95.30 130.1 148.9 0.65 0.78 1.00 1.30 1.56 1.95 2.34 3.12 3.64 Duo 3 m /s N/A N/A N/A N/A N/A N/A N/A N/A 2.34 3.12 3.64 Min m3/s 0.31 0.42 0.52 0.63 0.83 1.04 1.25 1.56 1.88 2.50 2.92 Max m3/s 0.42 0.56 0.69 0.83 1.11 1.39 1.67 2.08 2.50 3.33 3.89 NVx F m 10.0 13.0 16.0 15.0 21.0 24.0 25.0 29.0 31.0 35.0 37.0 NVx Duo m N/A N/A N/A N/A N/A N/A N/A N/A 48.0 50.0 58.0 NVx C Pa 145 177 143 250 236 205 250 260 200 284 285 Standard V/ph/Hz 230/1/50 Optional V/ph/Hz 400/3/50 (Centrifugal Unit Only) Motor kW 0.12 0.13 0.18 0.18 0.27 0.39 0.66 0.66 2x 0.39 2x 0.66 2x 0.66 Start amp 0.80 1.05 1.54 1.54 2.40 3.76 5.50 5.50 5.0 10.6 10.6 Run amp 0.54 0.33 0.70 0.70 1.20 1.70 2.80 2.80 2.30 5.3 5.3 2x 1.40 2x 1.40 NVx D Fan Static Motor kW 0.25 0.37 0.37 1.10 1.10 1.10 1.40 1.40 2x 1.10 Start amp 4.50 12.60 12.60 18.50 18.50 18.50 28.90 28.90 31.00 40.00 40.00 amp 1.50 4.20 4.20 6.40 6.40 6.40 10.60 10.60 12.80 21.00 21.00 Minimum Inlet Pressure BSP/Rc ¾” Nat Gas mbar 17.5 LPG mbar 37.0 Nat Gas m3/h 1.69 2.31 2.89 3.45 4.60 5.73 6.93 8.59 10.07 13.77 15.74 LPG m3/h 0.65 0.89 1.12 1.33 1.78 2.22 2.67 3.32 3.90 5.17 6.09 NVx F/Duo Crossflow Min m 2.5 3.00 Max m 3.0 5.00 NVx V Downflow Min m 4.00 4.00 5.00 6.00 6.00 Max m 6.00 7.00 8.00 10.00 12.00 NVx F NVx F Height mm 540 540 540 760 760 912 760 912 700 831 975 Width mm 1000 1000 1000 1000 1000 1000 1325 1325 2325 2325 2325 Depth mm 892 925 925 925 905 925 941 941 925 941 941 Top mm 130 130 130 130 130 130 130 130 130 130 LH Side mm 200 mm 1000 Rear Max Length 200 RH Side Diameter mm mm Ø Flue Only Room Sealed Combustion Air Spigot Nett Weight 90 75 27.32 Consumption Notes: 75 60 0.52 Run Noise Levels 60 50 21.85 Connection Flue 50 40 0.39 NVx C Install Clearance 40 30 16.00 NVx F Overall Dims 30 25 kW Electrics Mounting Height 25 20 m3/s Supply Fuel 20 15 NVx F / C / V Throw Airflow 15 kW 400 80 80 80 100 100 m 12 m mm Ø 100 6 80 80 80 100 100 100 NVx F dB(A) 54 52 53 54 58 61 62 62 66 67 67 NVx F kg 71.5 71.5 72.5 75.5 115 133.5 135.5 157 206 248 280 NVx C kg 106.5 120.5 126.5 166.5 168.5 183 213 234 343 363.5 424 Fuel Consumption and input figures based upon nett calorific values as follows: - Natural Gas (G20) nett CV 34.02 MJ/m3 - Propane (G31) nett CV 88.00 MJ/m3 • Heaters have efficiency levels which meet with the minimum heater efficiency requirements of UK Part L Building Regulations • Air handling data is assessed at room ambient conditions • Throw figures provide the distance to the point where the terminal velocity degrades to 0.25m/s • Dimensions and clearance data in the table above refer to NVx F units only - for NVx C and NVx D data refer to the dimensions page and/or the installation instructions • Noise levels are applicable to standard NVx F models and are measured 5m from appliance in a typical installation situation. • Motor kW, run and start amps apply to standard electrical supply as stated. For optional data contact sales office • Connection of combustion air duct is not required for ‘flue only’ applications • The NVx Duo throw dimension is the effective combined throw measurement • It is the responsibility of the installing contractor to ensure that ductwork is correctly sized and balanced when installing NVx Centrifugal units • Installer guidance notes on rear page 3 Dimensions NVx F - Axial Fan Crossflow Units NVx 120 F NVx 60 F ØD L G C F 35 A N Q B P FRONT VIEW GAS ENTRY POINT ELEC ENTRY REAR VIEW R/H SIDE VIEW SUSPENSION POINTS M10 M 122 M 122 E CTRS CTRS E 228 228 NVxF 90-140 PLAN G CTRS CTRS NVx F 10-90S PLAN 228 228 122 G 122 K Model A mm J CTRS J CTRS K H J CTRS H 15 20 25 30 40 50 60 75 90 120 140 1000 1000 1000 1000 1000 1000 1325 1325 2325 2325 2325 B mm 700 700 700 700 700 700 700 700 700 700 700 C mm 540 540 540 760 760 912 760 912 700 831 975 DØ mm 80 80 80 100 100 100 130 130 130 130 130 E mm 248 248 248 233.5 233.5 233.5 235.5 235.5 235.5 235.5 235.5 F mm 308 308 308 492 492 644 416 568 356 487 631 G mm 120 120 120 142 142 142 220 220 220 220 220 H mm 317 317 317 317 317 317 347 347 347 347 347 J mm 250 450 450 450 450 450 700 700 2x850 2x850 2x850 K mm 218 232.5 232.5 232.5 232.5 232.5 278 278 278 278 278 L mm 892 925 925 925 905 925 941 941 925 941 941 M mm 216 216 216 206 206 206 236 236 246 246 246 N mm 114 114 114 114 114 114 145 145 88 88 88 P mm 194 194 225.5 297 297 374 297 374 243 326 398 Q mm 157 190 190 190 170 190 204 250 190 204 204 4 Dimensions NVx Duo - Axial Fan Bi-Directional Units NVx 120 Duo L C Q B A R/H SIDE VIEW FRONT VIEW SUSPENSION POINTS M10 M 122 E CTRS G 228 CTRS PLAN G 228 F P 122 GAS ENTRY POINT ELEC ENTRY N REAR VIEW Model A J CTRS K mm J CTRS H 90 120 140 2325 2325 2325 B mm 700 700 700 C mm 700 831 975 DØ mm 130 130 130 E mm 235.5 235.5 235.5 F mm 356 487 631 G mm 220 220 220 H mm 347 347 347 J mm 2x850 2x850 2x850 K mm 278 278 278 L mm 1120 1182 1182 M mm 246 246 246 N mm 88 88 88 P mm 260 326 398 Q mm 190 204 204 5 Dimensions NVx V - Axial Fan Downflow Units NVx 60 V NVx 60 V M E L B+70mm ØD G 1325 C A R/H SIDE VIEW FRONT REAR DROP ROD SUSPENSION POINTS M10 N N K J CTRS J CTRS H P J CTRS K ELEC ENTRY J CTRS J CTRS J CTRS H P F C+30mm F GAS ENTRY POINT C+30mm G G PLAN FOR NVxV 10-75 PLAN FOR NVxV 90-140 Model 15 20 25 30 40 50 60 75 90 120 140 A mm 1000 1000 1000 1000 1000 1000 1325 1325 2325 2325 2325 B mm 700 700 700 700 700 700 700 700 700 700 700 C mm 540 540 540 760 760 912 760 912 700 831 975 DØ mm 80 80 80 100 100 100 130 130 130 130 130 E mm 248 248 248 233.5 233.5 233.5 235.5 235.5 235.5 235.5 235.5 F mm 308 308 308 492 492 644 416 568 356 487 631 G mm 120 120 120 142 142 142 220 220 220 220 220 H mm 283 283 304 283 283 283 312 312 299 350 312 J mm 260 260 260 260 260 260 385 385 442.5 442.5 442.5 K mm 197 197 176 197 197 197 243 243 256 205 243 L mm 892 925 925 925 905 925 941 941 925 941 941 M mm 216 216 216 206 206 206 236 236 246 246 246 N mm 114 114 114 114 114 114 145 145 88 88 88 P mm 194 194 225.5 297 297 374 297 374 243 326 398 6 Dimensions NVx C - Centrifugal Close Coupled Fan Units NVx 50 C (Rear) NVx 50 C (Front) øD G C T F N B S GAS ENTRY POINT L 35 A P FRONT VIEW R/H SIDE VIEW ELEC ENTRY REAR VIEW NOTE: For dimensioning purposes both top and rear flue and combustion air connections are shown SUSPENSION POINTS M10 M 122 M 122 E E 228 CTRS 228 CTRS PLAN FOR NVx C 10-75 228 CTRS PLAN FOR NVx C 90-140 G 228 CTRS G 122 122 K H J CTRS Model K J CTRS H J CTRS 15 20 25 30 40 50 60 75 90 120 140 A mm 785 1000 1000 1000 1000 1000 1325 1325 2325 2325 2325 B mm 700 700 700 700 700 700 700 700 700 700 700 C mm 540 540 540 760 760 912 760 912 700 831 975 DØ mm 80 80 80 100 100 100 130 130 130 130 130 E mm 248 248 248 233.5 233.5 233.5 235.5 235.5 235.5 235.5 235.5 F mm 308 308 308 492 492 644 416 568 356 487 631 G mm 120 120 120 142 142 142 220 220 220 220 220 H mm 317 317 317 317 317 317 347 347 347 347 347 J mm 250 450 450 450 450 450 700 700 2x850 2x850 2x850 K mm 218 232.5 232.5 232.5 232.5 232.5 278 278 278 278 278 L mm 1317 1356 1356 1430 1430 1430 1505 1505 1430 1505 1505 M mm 216 216 216 206 206 206 236 236 246 246 246 N mm 114 114 114 114 114 114 145 145 88 88 88 P mm 194 194 225.5 297 297 374 297 374 243 326 398 S mm 637 637 637 637 637 637 932 932 1932 1932 1932 T mm 492 492 492 712 712 864 712 864 617 783 927 7 Dimensions NVx D - Ducted Heat Module (No Fan) NVx 50 D (Rear) NVx 50 D (Front) L øD G C T T F P N S 33.7 A 33.7 B FRONT VIEW S GAS ENTRY POINT R/H SIDE VIEW REAR VIEW ELEC ENTRY SUSPENSION POINTS M10 M M 122 E 122 E 228 CTRS 228 CTRS PLAN FOR NVx D 10-75 228 CTRS PLAN FOR NVx D 90-140 G 228 CTRS G 122 122 J CTRS K K H J CTRS H J CTRS NOTE: For dimensioning purposes both top and rear flue and combustion air connections are shown 15 20 25 30 40 50 60 75 90 120 A Model mm 785 1000 1000 1000 1000 1000 1325 1325 2325 2325 140 2325 B mm 700 700 700 700 700 700 700 700 700 700 700 C mm 540 540 540 760 760 912 760 912 700 831 975 DØ mm 80 80 80 100 100 100 130 130 130 130 130 E mm 248 248 248 233.5 233.5 233.5 235.5 235.5 235.5 235.5 235.5 F mm 308 308 308 492 492 644 416 568 356 487 631 G mm 120 120 120 142 142 142 220 220 220 220 220 H mm 317 317 317 317 317 317 347 347 347 347 347 J mm 250 450 450 450 450 450 700 700 2x850 2x850 2x850 K mm 218 232.5 232.5 232.5 232.5 232.5 278 278 278 278 278 L mm 835 835 835 835 835 835 835 835 835 835 835 M mm 216 216 216 206 206 206 236 236 246 246 246 N mm 114 114 114 114 114 114 145 145 88 88 88 P mm 194 194 225.5 297 297 374 297 374 243 326 398 Q mm 133 133 133 147 147 147 147 147 147 147 147 S mm 637 637 637 637 637 637 932 932 1932 1932 1932 T mm 492 492 492 712 712 864 712 864 617 783 927 8 Flue Arrangements Room Sealed - Vertical Flue System Room Sealed - Horizontal Flue System Single to twin adaptor Flue socket Terminal Terminal Flashing Lengths Notes for all systems: Adjustable length Combustion air duct Combustion air socket 6m maximum Flue Only- Horizontal Flue System 1. Final overall length of adjustable disconnection piece must be between 360-415mm. 2. 45° offsets may be used if required. Each set is equivalent to 0.5m of flue length. 3. 90° offsets may be used if required. Each set is equivalent to 1m of flue length 4. Where NVx heaters are used in clean environments it is permissible to take the combustion air directly from the heated space. The supplied mesh intake plate must be fitted to the combustion air inlet on the rear of the heater. 5. If fitted with vertical flue, Powrmatic recommend the installation of a condensate drain length. Single to twin adaptor 6m maximum Adjustable lengths Lengths Condensate drain length Combustion air socket Flue socket Flue Only- Vertical Flue System Terminal Combustion air entry (fitted with inlet grille) Flue socket Adjustable length Flashing Terminal Lengths 12m maximum Lengths Combustion air entry (fitted with inlet grille) Adjustable length Combustion air entry (fitted with inlet grille) Condensate drain length Flue socket 12m maximum Flue Components Combustion air entry (fitted with inlet grille) 130mm (NVx60-140) Concentric Vertical Terminal Kit Unit Part Number A mm B mm C mm D mm E mm NVx 15 - 25 NVC/VTK1 80 605 105 630 130 NVx 30 - 50 NVC/VTK2 100 550 145 770 150 NVx 60 - 140 NVC/VTK3 130 960 250 560 200 80-100mm (NVx15-50) B Concentric Horizontal Terminal Kit Unit NVx 15 - 25 Part Number A mm B mm C mm D mm E mm NVC/HTK1 80 175 105 560 130 NVx 30 - 50 NVC/HTK2 100 170 145 560 150 NVx 60 - 140 NVC/HTK3 130 185 250 420 200 B E 130mm (NVx60-140) 80-100mm (NVx15-50) C A E C E A D D B C B E C D A D 9 A Accessories 30° Downflow Head (NVx F Models Only) Model C B C D E NVx 15-20-25 496 449 639 350 494 NVx 30-40 716 559 639 560 494 NVx 50 868 635 639 630 494 NVx 60 716 559 934 500 659 NVx 75 868 635 934 630 659 NVx 90 656 528 1934 420 659 NVx 120 787 595 1934 560 659 NVx 140 931 667 1934 700 659 D A B A E 90° Downflow Head - (NVx F Models Only) A B C D E NVx 15-20-25 Model 496 601 639 350 494 NVx 30-40 716 862 639 560 494 NVx 50 868 1015 639 630 494 NVx 60 716 862 934 500 659 NVx 75 868 1015 934 630 659 NVx 90 656 802 1934 420 659 NVx 120 787 932 1934 560 659 NVx 140 931 1076 1934 700 659 C E D B A Mixing Box - (NVx C Models Only) Model A C F E B C D E F 865 745 698 628 520 590 NVx 30-40 1093 973 698 628 748 818 NVx 50 1247 1125 698 628 900 970 NVx 60 1093 973 1011 941 748 818 NVx 75 1247 1125 1011 941 900 970 705 NVx 90 980 860 2014 1944 635 NVx 120 1145 1025 2014 1944 800 870 NVx 140 1310 1190 2014 1944 965 1035 F E B D A NVx 15-20-25 Filter Box - (NVx C Models Only) B C E A D A B C D E NVx 15-20-25 Model 698 590 120 628 522 NVx 30-40 698 818 120 628 750 NVx 50 698 970 120 628 902 NVx 60 1010 818 120 940 750 NVx 75 1010 970 120 940 902 NVx 90 2014 705 120 1944 637 NVx 120 2014 870 120 1944 802 NVx 140 2014 1035 120 1944 967 10 Fan Plenum Box - (NVx C Models Only) Model A B E D C A B C D E NVx 15 643 725 575 494 644 NVx 20-25 750 725 575 494 644 NVx 30-40 750 725 795 714 644 NVx 50 750 725 947 866 644 NVx 60 750 1020 795 714 939 NVx 75 825 1020 947 866 939 NVx 90 825 2021 735 654 1940 NVx 120 825 2021 866 785 1940 NVx 140 825 2021 1010 929 1940 Vertical Louvres (For Use On All Models) Model A B C NVx 15-20-25 537 418 66 NVx 30-40 537 628 66 NVx 50 537 698 66 NVx 60 702 568 66 NVx 75 702 698 66 NVx 90 702 493 66 NVx 120 702 628 66 NVx 140 702 758 66 C B A Cantilever Wall Bracket - (NVx F Models Only) 105 500 474 500 100 Swivel Wall Bracket - ( NVx F Models Only) Heater Heater Notes: - Dimensions for the swivel and cantilever brackets remain the same for all NVx models - Swivel Brackets can not be used with double units Controls A choice of control options are available for the NVx range. 5 heaters can now be controlled using the new MC300 Multi from a single master control. Visit our website to find out more about our controls systems. MC200V3 Single Unit Controls Powrtrol/RR MC300 Multi Multiple connectivity of up to 5 heaters from a master MC300 unit with each heater factory fiited with a MC300 slave. 11 Single Unit Controls RBR Relay Boxes RBR2 shown - control up to 2 units. Other RBR relay boxes available to control up to 4 to 6 units. Yo u r I n s t a l l e r G u i d e General Combustion Air & General Ventilation The following notes are provided as a guide, however installers and operators should fully acquaint themselves with the more detailed guidance provided in the relevant installation manual. For copies of such manuals please consult our technical department or visit our website - www.powrmatic.co.uk Within the United Kingdom mandatory regulations apply concerning the provision of combustion air and general heater ventilation. Where a heater is installed in room sealed mode (i.e. where both the flue exit and combustion air are positively connected to atmosphere) then there is no specific requirement for combustion air ventilation. However, depending upon location, provision for general ventilation may still be a necessity. Standards All Powrmatic NVx heaters must be installed, commissioned and operated with due regard to appropriate regulations including but not limited to BS 6230, relevant Codes of Practice, the possible requirements of Local Authorities, Fire Officers and insurers as well as Powrmatic’s installation manual. If the heater is installed in flue only mode and directly within the heated space and where that heated space has a natural ventilation rate greater than 0.5 air changes per hour then combustion air and general heater ventilation is probably not required. If the heated space has a natural ventilation rate of less than 0.5 air changes per hour then either natural ventilator openings or mechanical ventilation will be required. Please consult the installation manual for further details. Position & Location Powrmatic NVx heaters can be ‘drop rod’ suspended via purpose designed M10 suspension fixing points, attached to our optional wall support brackets or positioned on a level non-combustible base. In all cases it is important that all supporting structures have due regard to the relevant weight loadings. Installation Clearances Consideration should also be given to flue routes and points of exit, gas, electrical and control connections, the throw characteristics of the heater, issues of public access and the siting of environmental control stations and/or remote temperature sensors where the position needs to be representative of the zone temperature to which they refer. Flue Particular clearances may be necessary for the correct and safe function of the heater as well as for maintenance purposes. Such clearances are confirmed in the relevant installation manual. Powrmatic NVx heaters can be installed in either room sealed or flue only mode. Each heater requires a separate flue and/or combustion air intake system of the appropriate size and type. Installers are reminded that type approval has been granted for these appliances on the basis that they are fitted with Powrmatic NVx flue systems. Maximum lengths apply and should be strictly observed. Heaters should not be installed in hazardous areas or areas where there is a foreseeable risk of flammable or corrosion inducing particles, gases or vapours being drawn into the combustion air or main fan circuits. Areas where special consideration or advice may be required could include but is not limited to • Where de-greasing solvents are present, even in minute concentrations • Where paint spraying is carried out • Where styrenes or other laminating products are used • Where airborne silicone is present • Where petrol engined vehicles are stored or maintained • Where dust is present (i.e. wood working or joinery shops) • Where high levels of extract persist Systems may be installed in either the horizontal or vertical plane. In either case the number of bends kept to a minimum and regard must be given to the reduction in permissible length with the addition of each bend. The flue must be adequately supported and terminated with the approved terminal assembly, with due regard to the point of exit and it’s proximity to any windows, doors or ventilation intakes etc. Pipework Installation in such areas may be possible under specific conditions. Please consult our technical department for further information. Care should be taken when sizing pipe work to ensure that minimum gas inlet pressures are not compromised under dynamic load conditions. Isolating valves and service unions should be provided for each heater and pipe work installed with due regard for relevant standards and Codes of Practice. Plant Room or Enclosure Locations Guarantee Powrmatic Limited Hort Bridge Ilminster Somerset TA19 9PS Powrmatic Ireland 45 Broomhill Close Tallaght Dublin 24 tel: +44 (0) 1460 53535 fax: +44 (0) 1460 52341 e-mail: [email protected] web: www.powrmatic.co.uk tel: +353 (0) 1452 1533 fax: +353 (0) 1452 1764 e-mail: [email protected] web: www.powrmatic.ie It is recommended that you consult with our technical department. Powrmatic NVx heaters are provided with a comprehensive guarantee covering both the heater and the heat exchanger. For United Kingdom sales the heater has the benefit of a two year parts and one year labour guarantee whilst the heat exchanger assembly has a ten year time related sliding scale warranty. All guarantees are subject to terms and conditions. Powrmatic pursues a policy of continuous improvement in both design and performance of its products and therefore reserves the right to change, amend or vary specifications without notice. Whilst the details contained herein are believed to be correct they do not form the basis of any contract and interested parties should contact the Company to confirm whether any material alterations have been made since publication of this brochure. Issue 5.8 December 2015