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Summary of Contents for Powrmatic ErP NVS 30
- Page 1 Doc Ref: M102 Issue 2.4 May 2018 NVS Condensing 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 A) Checks before lighting the Air Heater main electrical supply to it. 1) Standard Units The following preliminary checks should be made before lighting the heater(s) -
Page 5: Introduction
The air heater must be adjusted and set in accordance with the connected to a flue system that is approved by Powrmatic data and detail set out in these instructions. If in doubt Ltd. -
Page 6: Duties
Duties Model Output Input (nett CV) 29.02 59.22 86.74 137.95 Volume (All Models) 0.78 1.56 2.34 3.64 Airflow Throw NVS F Fan Static NVS C Standard V/ph/Hz 230/1/50 Supply Optional V/ph/Hz 415/3/50 Motor 0.39 0.66 2 x 0.39 2 x 0.66 NVS F Start 3.76... -
Page 7: Dimensions
Dimensions NVS F - Axial Fan Crossflow Units NVS 30 & 60 ØD ØD GAS ENTRY POINT GAS ENTRY POINT FRONT VIEW R/H SIDE VIEW REAR VIEW REAR VIEW FRONT VIEW R/H SIDE VIEW SUSPENSION POINTS M10 SUSPENSION POINTS M10 Detailed View Of Gas Entry Point &... - Page 8 NVS C - Centrifugal Close Coupled Fan Units ØD ØD GAS ENTRY POINT GAS ENTRY POINT FRONT VIEW REAR VIEW R/H SIDE VIEW FRONT VIEW REAR VIEW R/H SIDE VIEW Detailed View Of Gas Entry Point & Condensate Drain Point GAS ENTRY POINT SUSPENSION POINTS M10 SUSPENSION POINTS M10...
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Page 9: Technical Data
1.2 Technical Data Injector Sizes & Burner Pressures - Natural Gas - Group H - G20 Net CV (Hi = 34.02MJ/m³) High Fire Low Fire Burner Burner Injectors Gas Rate Gas Rate Pressure Pressure MODEL Size (mm) Marked mbar m³/h mbar m³/h Nominal Inlet... -
Page 10: General Requirements
1.3.1. Related Documents 1.3.2 Location The installation of the air heater(s) must be in accordance Powrmatic NVS units are designed to operate within an with the rules in force and the relevant requirements of the ambient temperature range of -10 to 25°C. - Page 11 The air heater must be connected to the flue system that is provided by Powrmatic Ltd. Several configurations of flue - facilitate the complete electrical isolation of the unit(s) and combustion air ducts are available.
- Page 12 Type C12 Installation. Combustion ai r socke t Plant Rooms 1.3.6 Ventilation Requirements Low level (inlet) 4cm²/kw of total rated net heat input High level (outlet) 2cm²/kw of total rated net heat input Type B flued installations Enclosures Where NVS heaters are installed within the heated space Low level (inlet) 10cm²/kw of total rated net heat input (ie not in a plant room or an enclosure) and having High level (outlet) 5cm²/kw of total rated net heat input...
- Page 13 1.3.7 Air Distribution System should be suitably lined with a fire-resisting material. A full and unobstructed return air path to the air heater(s) Where single NVS/F units are required to cover a large floor must be provided. area, and in buildings with high roof or ceiling heights Calecon thermal economiser units should be fitted to If the air heater(s) is installed in a plant room the return air ensure even heat distribution and minimise stratification.
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Page 14: Fitting The Unit
2.1 Fitting the Unit Front View R/H Side Views 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) NVS30F - 40F 2500-3000 3000-5000... - Page 15 2.1.1 General reducing noise levels is important the heater should be insulated from the structure by installing it on suitable anti-vibration mountings. In all such cases and when the Before installation, check that the local distribution heater is suspended it is essential that all gas, duct, and conditions, nature of gas and pressure, and adjustment of electrical connections to the heater are made with flexible the appliance are compatible.
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Page 16: Flue/Combustion Air Duct System
2.5 metres. Note: A terminal guard, as supplied by Powrmatic Ltd, must be fitted to horizontal flue All models are supplied as standard with a rear flue outlet terminals. - Page 17 Fig 1a Individual system - horizontal Fig 1b Individual system - vertical Type C12 installation Type C32 installation Terminal Single to twin Terminal Terminal adaptor Flue s ocket Lengths Flashing Flashing Combustion Maximum 6m air duct Single to twin adaptor Minimum 6m m aximum Adjustable...
- Page 18 Fig 2b Exhaust only system - vertical If the condensate outlet from the heater is blocked for any reason e.g. freezing, and consequently condensate builds Type B22 installation up in the heater a float switch will operate and shut the heater down.
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Page 19: General Identification Of Electrical Items
2.3 General Identification of Electrical Items BURNER RESET GAS VALVE EXHAUST FAN HIGH LIMIT RESET PRESSURE SWITCH * PACTROL BOARD ** BRAHMA BOARD (ON/OFF UNITS ONLY) (HI/LO & MODULATION ONLY 2.4 Electrical Cable Installation 2.4.1 Electrical Connections All units, (with the exception of units supplied with a centrifugal fan/silencer duct section) are fully prewired and only require final connections for the incoming mains Warning: THIS APPLIANCE MUST BE... - Page 20 NVS/D models supplied less fan must be electrically made to one side of the fan motor contactor coil, the other interlocked to the air movement system so that this is side of the coil being connected to Neutral. The fan motor started in the same manner as the air heater fan would be electrical supply must not be taken direct from the internal viz.
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Page 21: Wiring Diagrams
2.5 Wiring Diagrams NVS 30-140 Axial Fan Crossflow Units page no. 21 of 36 NVS Range Users, Installation & Servicing Instructions Doc Ref M102 issue 2.4 May 2018. - Page 22 Additional Wiring for Optional Items Interconnecting Wiring: Powrmatic MC200 NV Panel Terminals 8 7 15 16 17 On/Off Burner MC200 fuelsaver 1 2 3 5 6 Modulating Burner 61 62 63 64 65 66 Hi/Lo Burner GAS VALVE HEAD, MC200 fuelsaver...
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Page 23: Commissioning And Testing
2.6 Commissioning and Testing 2.6.1. Electrical Installation 1. Switch on the electrical supply at the isolator. 2. If the High limit indicator light comes on press the limit Checks to ensure electrical safety must be carried out by a reset switch on the front panel. The Red indicator light will qualified person. - Page 24 2.6.6.1.2. High/Lo Regulator stated on the data plate. If necessary adjust the burner gas pressure by turning the regulator screw anticlockwise Hexagonal to decrease the pressure, or clockwise to increase the adjustment screw for pressure. maximum pressure setting Cover 3. In addition it is advisable to check the gas rate using the Lever point Internal slotted adjustment screw for...
- Page 25 5. Turn off the main burner, disconnect the pressure gauge to decrease until the required pressure is obtained. and replace the sealing screw. Turn on the main burner and Reconnect modulating regulator and check high fire test for gas soundness around pressure test joint using a pressure, readjust if necessary.
- Page 26 The MIB interfaces between a 0-10VDC control signal and 3. Potentiometer P2 the modulating regulator. The following are applicable to Controls the minimum drop-out voltage between 0% and this application. 40% E.g. - When P2 is set at 0% the drop-out voltage with an input 1.
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Page 27: Servicing
2.6.7. Limit Thermostat the air heater and associated controls. Adjust the automatic controls to those values required by the User. Thermostat settings:- Finally, advise the user or purchaser that, for continued Limit efficient and safe operation of the air heater, it is important NVS 15-140SF 90°C that servicing is carried out annually. - Page 28 2.7.4. Heat Exchanger 2.7.6. Condense Drain & Trap Whilst the main burner assembly is removed from the unit, Ensure that the condense trap is clean and that the check that the primary sections that the burners fire into drainage pipe work is not blocked or damaged. are clean.
- Page 29 2.7.7.4. Limit Thermostat 2.7.7.7. Control Box Limit NVS 15-140SF 90°C 1. Unplug all the electrical connections. 1. Remove the screws securing the thermostat phial 2. Remove the screws that secure the control box in place. mounting plate to the inner bulkhead, withdraw assembly and unclip the phial.
- Page 30 3.1 List of Parts Item Description Usage Part No. Gas Valve V4105A 145035208/KIT Gas Valve VR4605AB 60 - 90 145035204/KIT Gas Valve V425AB 141378715/KIT 30/60 142423002 Ignition Electrode 90/140 142400004 Rectification (Flame Sensor) Probe 142423003 30/60 142400240 Burner 90/140 142400241 Limit Stat 142403609 Fan Command Module...
- Page 31 JOX Relay 143000816 Hi/Lo Governor Head 30-140 -/HL 142466402 Modulation Governor Head 30-140 -/MOD 142466403 Modulation Driver (GM44) 30-140 -/MOD 142400303 140210496 Exhaust Fan Exhaust Fan c/w Mounting Brackets NV1050EXH 140201505 Exhaust Fan Exhaust Fan c/w Mounting Brackets NVS6075EXH 140201506 Exhaust Fan 90/140 Exhaust Fan c/w Mounting Brackets...
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Page 32: Gas Conversion
3.2 Gas Conversion 3.2.3.1. 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 33 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 NVS30 NV30LPG 1.25 142401673...
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Page 34: Information Required For Ecodesign (Erp) Directive 2009/125
Appendices Information required for ecodesign (ErP) Directive 2009/125 Model NVS30 NVS60 NVS90 NVS140 High Heat Input 29.0 59.2 86.7 138.0 Rated Heat Capacity 30.0 60.0 90.0 140.0 Low Heat Input Nett CV 15.8 32.7 51.0 77.3 Minimum Heat Capacity 15.2 32.7 51.0 77.3... - Page 35 Notes page no. 35 of 36 NVS Range Users, Installation & Servicing Instructions Doc Ref M102 issue 2.4 May 2018.
- Page 36 More information is available from our web site on:- http://www.powrmatic.co.uk/products/heating/browse/view/product/nvs-condensing-unit-heater/ 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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