Summary of Contents for Powermatic NVS Series
- Page 1 The NVS Range Users, Installation and Servicing Instructions (Brahma Control) WARNING: THIS APPLIANCE MUST BE EARTHED NVS Range Users, Installation & Servicing Instructions Issue 1.6 January 2013...
-
Page 2: Certificate Of Guarantee
Certificate of Guarantee Dear Customer This is to certify that this appliance is guaranteed for two years parts and one year labour from the date of original commissioning. The appliance must be commissioned within 4 weeks of installation. The heat exchanger, where fitted, is guaranteed (parts only) for a further eight years, chargeable on a sliding scale basis, price relative to age. -
Page 3: Description Of Operation
Users Instructions Checks before lighting the Air Heater depending on the requirements of the space being heated and the external controls fitted. The following preliminary checks should be made before lighting the heater(s) Summer / Winter Modes a) Ensure that the ELECTRICAL supply to the heater is switched OFF. -
Page 4: Installation & Servicing Instructions
Installation & Servicing Instructions C O N T E N T S Section Title Page Introduction Technical Data General Requirements Installation Air Distribution System Commissioning & Testing Servicing Connections to External Controls Fault Finding Flow Chart Short List of Parts Tables Title Page... - Page 5 1. INTRODUCTION The NVS range are highly efficient, fully condensing, gas fired, fanned circulation air heaters that cover heat outputs of 30kW to 140kW, have a closed combustion circuit and are supplied complete with a flue system. They are certified for use on Natural Gas, Group H - G20, and Propane - G31 only.
- Page 6 2. TECHNICAL DATA NVS 30 & 60 øD GAS ENTRY POINT FRONT VIEW SIDE VIEW REAR VIEW NVS 90 & 140 øD GAS ENTRY POINT...
- Page 7 Table 1. Dimensions Model NVS30 1050 NVS60 1345 1031 NVS90 2345 87.5 NVS140 1035 Table 2 - Specifications HIGH FIRE LOW FIRE MAXIMUM NOISE DUCT WEIGHT VOLUME MOTOR LEVEL INPUT INPUT OUTPUT OUTPUT RESISTANCE (Nett) (Nett) MODEL m³/s dB(A) @ 3m 0.300 NVS30 29.02...
-
Page 8: General Requirements
3. General Requirements d) In areas subjected to significant negative pressures due to extract systems. 3.1 Related Documents Where the location of the air heater is such that it might suffer The installation of the air heater(s) must be in accordance with external mechanical damage e.g. - Page 9 All air vents should have negligible resistance and must not be 4. Installation of Air Heater(s) sited in any position where they are likely to be easily blocked 4.1 General or flooded or in any position adjacent to an extraction system Before installation, check that the local distribution which is carrying flammable vapour.
-
Page 10: Vertical System
- 300mm from an internal or external corner. 4.3.1.2 Fitting Flue/Combustion Air Sockets - 1200mm from a surface facing the terminal. 1. Apply a bead of silicon sealant around the face of the flange - 1500mm vertically from another terminal on the same wall. on the exhaust fan outlet tube that can be seen from the outside - 300mm horizontally from another terminal on the same wall. - Page 11 Fig 2a Individual system - horizontal 5. Ensure that internal silicon sealing rings are in place and that all tubes are pushed fully home. Secure concentric lengths with the locking bands provided. Single to twin Terminal a d a p t o r Flue socket 4.3.3.3 Internal Combustion Air Systems Lengths...
-
Page 12: Electrical Connections
5. Air Distribution System 4.4 Gas Connection 5.1 General The gas entry pipe work must be fitted with a servicing valve and union to facilitate servicing. The gas supply to the air NVS/D models are designed for use with duct work to more heater must be completed in solid pipe work and be adequately precisely define the point of air delivery, and /or provide supported. - Page 13 6.5 Lighting the Air Heater 6.6.1.1 Standard Units 1. Set external controls to ensure that the main burner is off. NOTES: Open the side access door. Connect a pressure gauge to the 1. On initial lighting of the heater(s), it may take some time to burner pressure test point on the multifunctional control.
- Page 14 Nominal CO2 values are given for guidance in the following 6.6.1.3 Modulating Regulator table. 1. Set external controls to ensure that the main burner is off. Open the side access panel. Connect a pressure gauge to the burner pressure test point on the multifunctional control. 2.
- Page 15 6.7 Handing over the Air Heater 7.5 Main Fan Assembly Hand these instructions to the user or purchaser for retention 7.5.1 NVS/F Models and instruct in the efficient and safe operation of the air heater 1. Inspect the fan blades to see that they are not damaged and and associated controls.
- Page 16 the spark gap is 2.5mm (See Fig. 8) and the rectification 7.7.10 Centrifugal Fan/Motor electrode is 10 - 12mm forward of the burner. 1. Disconnect the electrical connections to the centrifugal fan section. 7.7.4 Limit Thermostat 2. Remove the side panels of the section for access to the fan NB.
-
Page 17: Connections To External Controls
8. Connections to External Controls Note: To achieve maximum system efficiency it is recommended that NVS units are controlled by an MC200 Fuel Saver unit. Simple room thermostat and room thermostat/time clock control systems will not enable optimum system efficiency. LIVE LIVE NEUTRAL... -
Page 18: Fault Finding Flow Chart
9. Fault Finding Flow Chart START Turn supplies on Gas & Electrical Check fuses/connections supplies present at heater Unit at overheat (red lamp on front panel on) Remove high limit thermostat cover cap and push button to reset Blown Check Fuse ‘L’ Replace (3.15A), ascertain cause Check for faulty high limit thermostat or faulty connection. -
Page 19: Short List Of Parts
10. Short List of Parts Only originally specified parts may be fitted as service replacements and all items are available from the Powrmatic Ltd Spares Department. Please refer to Powrmatic Ltd for any parts not shown in the listing. ITEM USAGE PART # MFC - Honeywell... - Page 20 BSI Registered Firm FM 414 Ind. & Comm. Air Heaters; Air Moving Equipment; Flues & Chimneys; Natural Smoke & Heat Ventilators; Powered Supply & Extract ISO 9001 Fans & Systems. 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.
Need help?
Do you have a question about the NVS Series and is the answer not in the manual?
Questions and answers