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Summary of Contents for Powrmatic NVx15CCF
- Page 1 Doc Ref: M101 Issue 6.6 May 2018 NVx Suspended Gas Unit Heater Industrial & Commercial Heating Systems User, Installation & Servicing Manual + 4 4 ( 0 ) 1 4 6 0 5 3 5 3 5 w w w . p o w m a t i c . c o . u k i n f o @ p o w r m a t i c .
- Page 2 1. The appliance type and serial number. 2. The original commissioning documentation. As much detail as possible on the fault. 3. Your supplier, or installer, will then contact Powrmatic to make a guarantee claim on your behalf. Conditions of Guarantee 1.
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Page 3: Table Of Contents
We appreciate you buying one of our high quality products and know that you have made the best choice. By choosing Powrmatic, you are investing in UK manufacturing & its workforce. We pride ourselves by manufacturing products that provide clean, comfortable and safe working environments worldwide together with the personal &... -
Page 4: User Instructions
User Instructions D) Description of Operation If the heater has not been left operational proceed as follows. Important: The heater must NOT be controlled by switching ON and OFF the main electrical supply to it. A) Checks before lighting the Air Heater The following preliminary checks should be made before 1) Standard Units lighting the heater(s) - Page 5 If in doubt and draw in air for combustion. The air heater must be consult Powrmatic Technical Department. connected to a flue system that is approved by Powrmatic Ltd. Gas Safety (Installation & Use) Regulations 1998...
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Page 6: Duties
Duties Model High Fire (max) Output (nominal) Low Fire (min) 10.6 14.6 16.4 23.9 26.0 27.7 44.6 54.4 81.0 89.5 High Fire (max) 16.4 21.9 27.3 32.9 43.5 54.2 65.5 80.6 97.4 128.5 149.0 Input (nett CV) Low Fire (min) 8.22 11.96 16.5... - Page 7 Dimensions NVx F - Axial Fan Crossflow Units NVx 40 F NVx 90 ØD GAS ENTRY POINT ELEC ENTRY FRONT VIEW R/H SIDE VIEW REAR VIEW SUSPENSION POINTS M10 CTRS CTRS CTRS CTRS J CTRS J CTRS J CTRS PLAN FOR NVx F 15-75 PLAN FOR NVx F 90-140 FREE BLOWING Model...
- Page 8 NVx Duo - Axial Fan Bi-Directional Units NVx 90 Duo FRONT VIEW R/H SIDE VIEW SUSPENSION POINTS M10 CTRS PLAN CTRS GAS ENTRY POINT REAR VIEW ELEC ENTRY J CTRS J CTRS 2-WAY Model 1950 1950 1950 1140 DØ 235.5 235.5 235.5 2 x 662.5...
- Page 9 CTRS CTRS CTRS CTRS J CTRS J CTRS J CTRS PLAN FOR NVx F 15-75 PLAN FOR NVx F 90-140 FREE BLOWING NVx V - Axial Fan Downflow Units NVx 60 V NVx 60 V ØD B+70mm 1325 R/H SIDE VIEW FRONT REAR DROP ROD...
- Page 10 2-WAY NVx CCF - Centrifugal Close Coupled Fan Units NVx 50 CCF NVx 50 CCF (Rear) (Front) ØD GAS ENTRY POINT ELEC ENTRY FRONT VIEW REAR VIEW R/H SIDE VIEW SUSPENSION POINTS M10 CTRS CTRS PLAN CTRS CTRS J CTRS J CTRS J CTRS PLAN FOR NVx C 90-140...
- Page 11 CTRS CTRS J CTRS J CTRS J CTRS PLAN FOR NVx C 90-140 PLAN FOR NVx F 15-75 NVx D - Ducted Heat Module (No Fan) NVx 50 D (Rear) NVx 50 D (Front) ØD GAS ENTRY POINT FRONT VIEW REAR VIEW ELEC ENTRY R/H SIDE VIEW...
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Page 12: Accessories
Accessories 30° Downflow Head (NVx F Models Only) Dimensions (mm) Model Part Number NVx 15-20-25 NVX01530DH NVx 30-40 NVX03030DH NVx 50 NVX05030DH NVx 60 NVX06030DH NVx 75 NVX07530DH NVx 90 NVXSF09030DH 1566 NVx 120 NVXSF12030DH 1566 NVx 140 NVXSF14030DH 1096 1566 90°... - Page 13 Fan Plenum Box - (NVx CCF Models Only) Dimensions (mm) Model Part Number NVx 15-20-25 NVx015/PLENUM NVx 30-40 NVx030/PLENUM NVx 50 NVx050/PLENUM NVx 60 NVx060/PLENUM 1020 NVx 75 NVx075/PLENUM 1020 NVx 90 NVxSF090/PLENUM 1639 1558 NVx 120 NVxSF120/PLENUM 1639 1014 1588 NVx 140 NVxSF140/PLENUM...
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Page 14: Technical Data
1.2 Technical Data Injector Sizes & Burner Pressures - Natural Gas - Group H - G20 Net CV (Hi = 34.02MJ/m³ (All variants) High Fire Low Fire Burner Burner Injectors Gas Rate Gas Rate Pressure Pressure MODEL Size (mm) Marked mbar m³/h mbar... - Page 15 Electrical Loadings - 1Pha F / Duo1 / V Models CCF Models Fuse/MCB Fuse/MCB Start Amps Run Amps Run Amps Start Amps Rating (A) Rating (A) MODEL NVx15 0.50 NVx20 1.05 0.53 NVx25 1.05 0.56 13.3 NVx30 1.54 13.3 NVx40 18.0 NVx50 3.76...
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Page 16: General Requirements
Department can provide guidelines). 1.3.2 Location 1.3.3 Electrical Supply Powrmatic NVx units are designed to operate within an ambient temperature range of -10 to 25°C. Wiring external to the air heater must be installed in accordance with the I.E.E. Regulations for Electrical NVx heaters can be installed in several ways: i) suspended Installations and any local regulations which apply. -
Page 17: Installation
Combustion air the above Code. socket 1.3.5 Flue System Only flue systems supplied through Powrmatic Ltd may be used with NVx units. Several configurations of flue and combustion air ducts are available. 1.3.6 Ventilation Requirements The flue must terminate in a freely exposed position and... -
Page 18: Installation
products ducted to the outside air, NO additional These being: provision for the supply of either combustion air or for • Natural Ventilation: combustion products dilution or additional provision for the supply of air is necessary. There must be permanent air vents communicating directly with the outside air, at high level and at low level. - Page 19 900mm of the outlets. A full and unobstructed return air path to the air heater(s) must be provided. 1.3.7.1 Ducting Requirements Model Air Volume m³/h Maximum Duct Resistance (Pa) NVx15CCF 1512 NVx20CCF 2016 NVx25CCF 2808 NVx30CCF 3816...
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Page 20: Fitting The Unit
2.1 Fitting the Unit 2.1.1 Fitting space requirement NVx F / CCF Front View NVx Duo Front View R/H Side Views NVx F NVx CCF NVx V NVx Duo R/H Side Views page no. 20 of 48 NVx Range Users, Installation & Servicing Instructions Doc Ref M101 issue 6.6 May 2018. - Page 21 Distance from outside of heater to closest obstacle Distance 1000 RHS Clearance (when viewed at front of heater) LHS Clearance (when viewed at front of heater) Top of heater Rear of heater (dependent on flue system) 2.5-3.0 NVx15F-30F / Duo 3.0-5.0 NVx40F-140F / Duo NVx D...
- Page 22 Threaded drop rods must have lock nuts fitted that are Any room thermostat, frost thermostat, time clock etc. tightened down onto the 10mm fixings in the heater. If must be suitable for switching 230V, 5A and must be of the reducing noise levels is important the heater should be 'snap action' type to minimise contact bounce.
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Page 23: Flue/Combustion Air Duct System
Note: A terminal guard, as supplied by replace or make good with silicon sealant. Powrmatic Ltd, must be fitted to horizontal flue terminals. 6. Secure the exhaust fan outlet flange to the underside of the top panel and fit the blanking plates to the rear panel. - Page 24 1. Locate the position of the flue terminal, allowing for Extend the drainage off take of the condensate drainage a slight gradient running down from the heater to the length to a suitable gully or drain. terminal of 2° - 3° and cut a hole to suit. 4.
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Page 25: General Identification Of Electrical Items
(fitted with inlet grille and inlet bend (not shown)) should the drain be required in the future. Any clarification can be achieved by consulting with Powrmatic. 2.3 General Identification of Electrical Items GAS VALVE EXHAUST FAN... -
Page 26: Electrical Cable Installation
2.4 Electrical Cable Installation Electrical Connections Warning: Lockout reset is by a switched Neutral to the controls in the heater. Warning: THIS APPLIANCE MUST BE EARTHED. Reference must be made to Section 1.2 to ascertain the electrical loading of the unit(s) being installed so that Warning: Wiring external to the unit must cables of adequate cross-sectional area are used for be carried out by an appropriately... - Page 27 MAIN 230V External Wiring 230v Supply The wiring terminals are located on the electrical panel for Controller behind the side door of the heater which firstly has to be opened. Modulating (-) Modulating (+) 0-10v Lockout Reset - Momentary sw Mains input 230V 50Hz 1Ph supply connections are via a seperate LNE terminal block.
- Page 28 Interconnecting Wiring: NVx High / Low to Powrmatic MC200 Warning: External controls NV X CONTROL MUST be powered via heater PANEL terminal 10, 11 and Earth 3 4 5 6 7 8 9 10 EARTH MAINS S UPP LY NEUTRAL...
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Page 29: Wiring Diagrams
2.5 Wiring Diagrams NVx High / Low Internal Wiring page no. 29 of 48 NVx Range Users, Installation & Servicing Instructions Doc Ref M101 issue 6.6 May 2018. - Page 30 NVx Modulation Internal Wiring page no. 30 of 48 NVx Range Users, Installation & Servicing Instructions Doc Ref M101 issue 6.6 May 2018.
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Page 31: Commissioning And Testing
2.6 Commissioning and Testing Gas Safety (Installation & Use) (Amendment) Particular attention should be given to the correct Regulations arrangement of delivery ducts and registers, return air ducts and grills and general adequacy of return air paths. It is law that all gas appliances are installed, adjusted and, if necessary, converted by qualified persons* in For NVx D and NVx CCF units ensure that the duct work is... - Page 32 2.6.6.1.1.1. Sigma 843 Adjustment IMPORTANT: The internal pipe work of the appliance has been tested for soundness before leaving the factory. After Maximum Setting. establishing the main burners test round the gas inlet connection using a leak detection fluid. With the controls set to high fire, use an adjustable or 10mm spanner to screw the adjustment nut (C) in to increase and out to decrease, until the required pressure 1.
- Page 33 Minimum Setting. Hexagonal Disconnect electrical connection of modulating regulator adjustment screw for maximum pressure and turn burners back on and wait until the burner setting pressure has stabilized. Turn 9mm adjustment nut for low Cover fire pressure clockwise to increase and counter-clockwise Lever point Internal slotted adjustment screw for...
- Page 34 The MIB interfaces between a 0-10VDC control signal and The following table shows the relationship between P2 and the modulating regulator. The following are applicable to P3 settings. this application. 1. The setting of the slide switches 1 & 2 should both be to Drop Out OFF.
- Page 35 2.6.6.2. Flame Current Adjust the balancing dampers within the airflow ductwork system to achieve a current suitable for the model in question. 1. To measure the flame current connect a multimeter capable of measuring micro amps as shown in the following diagram.
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Page 36: Servicing
2.7 Servicing Gas Safety (Installation & Use) (Amendment) 4. Release the inlet connection flange from the gas valve by Regulations removing the four screws. It is law that all gas appliances are installed, adjusted and, if necessary, 5. If required remove the manifold by removing the four converted by qualified persons* in screws securing it to the burner assembly. - Page 37 2.7.5 Main Fan Assembly 2.7.6. Replacement of Faulty Components 2.7.5.1. NVx F & CCF Models 2.7.6.1 Multifunctional Control 1. Inspect the fan blades for any damage or excessive 1. Ensure that the gas service valve is turned OFF. If a buildup of deposits that could give rise to an imbalance.
- Page 38 2.7.6.4. Limit Thermostat 3. Pull off the sensing tube from the air pressure switch. 4. Note the setting of the old pressure switch. NB. Ensure that the thermostats are set correctly before fitment Limit Thermostat settings:- 5. Remove the screws fixing the air pressure switch and remove switch.
- Page 39 3.1 Fault Finding START Is there TURN ON 230V between Pactrol controller terminals MAINS CON5 - pin 1 and ISOLATOR! pin 2? Is there now 230V between Check for break Pactrol controller terminals in BROWN cable. CON5 - pin 1 and pin 2? there Is there...
- Page 40 Continued from previous page Is there there 230V between Check for break NOW 230V Replace contractors terminals 14 in VIOLET & between contractors and 15? Green lamp will be Pactrol! terminals 14 WHITE cables. indicating. and 15? there NOW a Is the Gas spark present Replace...
- Page 41 3.2 List of Parts Item Description Usage Part No. Gas Valve SIGMA 843 15-50 145035208HL-SIT/KIT Gas Valve VK4105A 15-50 145035208/KIT Gas Valve VR4605AB 60-90 145035204/KIT Gas Valve V425AB 120/140 141378715/KIT 15-75 142423010 Ignition Electrode 90-140 142423004 Rectification (Flame Sensor) Probe 142423003 15-75 142400240...
- Page 42 Modulation Governor Head 15-140 -/MOD 142466403 Modulation Driver (GM44) 15-140 -/MOD 142400303 Lockout Reset Switch 143070276 Fan Command Module MkIII 142403603 Pressure Switch HUBA 604 146522176 15-50 140210496 Exhaust Fan Exhaust Fan c/w Mounting Brackets 15-50 NVX1050EXH/SP 60 & 75 140201505 Exhaust Fan Exhaust Fan c/w Mounting Brackets...
- Page 43 1402CFAN009 20/25 1402CFAN150/T/15 1402CFAN280/T/15 Main Centrifugal Blower - NVx CCF 40/50/90 1402CFAN210/T/15 1402CFAN580/T/15 1402CFAN550/T/15 120/140 1402CFAN580/T/15 page no. 43 of 48 NVx Range Users, Installation & Servicing Instructions Doc Ref M101 issue 6.6 May 2018.
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Page 44: Gas Conversion
3.3 Gas Conversion 3.3.3.1. Sigma 843 Adjustment Gas Safety (Installation & Use) (Amendment) Regulations It is law that all gas appliances are installed, adjusted and, if necessary, converted by qualified persons* in accordance with the current issue of the above regulations. Failure to install appliances Adjustment screw correctly can lead to prosecution. -
Page 45: Nvx Range Users, Installation & Servicing Instructions Doc Ref M101 Issue 6.6 May
Natural Gas to Propane (LPG) Conversion Data Nominal Inlet Pressure = 37mbar, Minimum Inlet Pressure = 37mbar High Fire Low Fire Burner Burner Injectors Pressure Pressure Conversion Kit Injector part MODEL Size (mm) Marked mbar mbar part number number NVx15 NVx15LPG 142401679 21.6... -
Page 46: Information Required For Ecodesign (Erp) Directive 2009/125
Appendices Information required for ecodesign (ErP) Directive 2009/125 Model 15.0 20.0 25.0 30.0 40.0 50.0 Rated Heat Capacity Nett CV 12.0 16.5 18.3 26.9 29.6 Low Heat Input 10.6 14.6 16.4 23.9 26.0 Minimum Heat Capacity High Fire Useful Efficiency Low Fire High Fire 0.07... - Page 47 Notes page no. 47 of 48 NVx Range Users, Installation & Servicing Instructions Doc Ref M101 issue 6.6 May 2018.
- Page 48 More information is available from our web site on:- http://www.powrmatic.co.uk/products/heating/browse/view/product/nvx-gas-unit-heaters/ HEATING DIVISION Hort Bridge Ilminster, Somerset TA19 9PS Tel: 01460 53535 Fax: 01460 52341 Every effort is made to ensure accuracy at time of going to press. However as part of continued product improvement, we reserve the right to alter specification without prior notice.
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