Ventilation Units Installation and Maintenance - Nuaire

1 MEV-DC2 The EMC Directive 2014/30/EU. The Low Voltage Directive Continuous Mechanical Extract 2014/35/EU. Ventilation Units Installation and Maintenance Introduction It is assumed that a solid non-reverberant mounting position has been selected and the electrical mains wiring and any Nuaire 's MEV-DC2 Units are designed to provide optional control wires have been made ready. continuous mechanical extract Ventilation to homes in accordance with Part F of the Building Regulation It is also assumed that compatible ductwork is already 2010 and BRE digest 398. installed and ready to be connected to the 125mm dia. discharge and inlet spigot. Coding/description is as follows: MEV-DC2 Single fan unit. Note: the unit is not fitted with a backdraught shutter. (When using the continuous background vent facility a backdraught The case is constructed in grey /blue ABS plastic.)

2 The full shutter is not needed). However a backdraught shutter is length access cover which is located on the underside of available from Nuaire if required. the unit, on the opposite side to the mounting bracket, is 1 An integral fixing bracket with a single bolt fixing allows easy retained by four 4 turn fasteners. mounting and removal of the unit when necessary. The unit is Figure 1. supplied with a 125mm dia. discharge and inlet spigot for fitting during Installation . Unit fixing The integral mounting bracket supplied can be offered up to position, the fixing points marked through and the bracket installed with 4 screws by others. (See figure 2). Installation Offer the unit into position and locate the bracket into the Installation must be carried out by competent personnel slots in the case before fixing with the single bracket fixing in accordance with the appropriate authority and screw.

3 Conforming to all statutory and governing regulations. As supplied the unit is fitted with: The fan must be fitted indoors, away from sources of water 5 off blanking plates (Do not remove). spray or steam generation. The fan can be installed at any 2 off 125mm diameter spigots angle using the integral mounting bracket supplied (figure 2). Please note a clear space of at least 470 x 320mm is required to allow the cover to be removed and provide Figure 2. sufficient access for Maintenance . Bracket tongues engage with casing Fixing screw The fan is designed to be wired direct to the mains supply slots, then unit hole. through a fused spur isolator (by others) and run rotated up to align with fixing continuously in the Normal mode (which is the low speed, screw hole. background or trickle Ventilation setting) with occasional Boost airflow (high speed setting) as and when required.

4 The unit is provided with adjustment for the low speed 2 rubber cable (Normal) and high speed (Boost) Ventilation rate as required. entry grommets either side of casing for external wiring. Figure 3. Typical Installation . Top of ceiling void. Exhaust air from kitchen, bathroom and on-suite to outside via air brick. Extract air from Extract air from Extract air from kitchen via on-suite via bathroom via Air Valve mounted Air Valve mounted Air Valve mounted in ceiling. in ceiling. in ceiling. Nuaire MEVDC2 unit mounted on the ceiling using an integral mounting bracket. Nuaire : A Trading Division of Polypipe Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NA. T: 029 2088 5911 F: 029 2088 7033 E: W: 1 27. 04. 18. Leaflet Number 671559. Installation and Maintenance MEV-DC2 Continuous Mechanical Extract Ventilation Units Electrical connection With the unit fixed in position and working from underneath Isolation - Before commencing work make sure that the unit, and Nuaire control are the Installation bring the external wiring through the chosen electrically isolated from the mains supply.

5 Rubber cable entry grommet (two either side, see figure 2). The unit must be Earthed. Dimensions Figure 4. Dimensions in mm. Mounting bracket Single screw unit fixing Do not use 10. SIDE VIEW END VIEW. 202. Cable entry 20mm VIEW WITH ACCESS PANEL REMOVED MOUNTING BRACKET TOP VIEW. Alternative spigot 50 positions Bracket fixing 4 holes dia. 125 dia. 125 dia. 80. 350. 331. 490. Electrical Wiring (basic). Figure 5. Unit serving Bathroom only Unit serving Kitchen and two Bathrooms 3 Pole Remote/light switch isolator Kitchen switch SL. Mains L L. 230V Fuse 2A Optional lamp N N. 50Hz Light switches 3 Pole (Double pole) isolator Fan unit SL. Mains L L. Unit serving Kitchen and Bathroom 230V Room lights N N. Kitchen switch 50Hz 3 Pole Light switch isolator (Double pole) All field wiring and switches by others. SL. Mains L L.

6 230V Fuse 2A Room light N N. 50Hz Fan unit 2 27. 04. 18. Leaflet Number 671559. Installation and Maintenance MEV-DC2 Continuous Mechanical Extract Ventilation Units Electrical Wiring (options). Figure 6. Circuit Board Connections. SL. L. N. 70 100. Max Airflow (%). 55 25. 70 100. Min Airflow (%). 55 25. 40. The unit is designed to operate continously to give a back- ground Ventilation rate with the facility to boost the fan to For good EMC engineering practice, any sensor cables a higher duty as required. or switched live cables should not be placed within 50mm of other cables or on the same The boost can be achieved by switched live only (SL). metal cable tray as other cables. Volume Control Replacement of Parts To control the volume of air the unit is equipped with two Should any component need replacing Nuaire keep extensive control dials, for trickle and boost duties.

7 Stocks for quick delivery. Ensure that the unit is electrically In order to set the air extract rates correctly please refer to isolated, before carrying out any work. When ordering spare parts, please quote the serial number Approved Document F which can be found at: of the unit and the ARC number of the purchase if possible. (This information will be available on the fan label). Warranty Unit must not be switched off, product is The 3 year warranty starts from the day of delivery and designed to run continuously. includes parts and labour for the first year. The remaining period covers replacement parts only. This warranty is void if the equipment is modified without Maintenance authorisation, is incorrectly applied, misused, It is inevitable that even with filtered extract grilles fitted disassembled, or not installed, commissioned and some dust, fluff etc.

8 Will pass through the filter, and which, maintained in accordance with the details contained in this if allowed, will build up internally on motors and impellers, manual and general good practice. shortening the life of the unit and, in severe cases, leading The product warranty applies to the UK mainland and in to overheating of the motors. Consequently, it is strongly accordance with Clause 14 of our Conditions of Sale. recommended that all Units are inspected and cleaned every Customers purchasing from outside of the UK should year. contact Nuaire International Sales office for further details. Cleaning After Sales Enquiries Remove covers and carefully clean out interiors as For technical assistance or further product information, necessary. Check for damage and security of components. including spare parts and replacement components, please Refit covers.

9 Contact the After Sales Department. Telephone 02920 858 400. 3 27. 04. 18. Leaflet Number 671559. Installation and Maintenance MEV-DC2 Continuous Mechanical Extract Ventilation Units DECLARATION OF INCORPORATION AND INFORMATION FOR SAFE Installation , OPERATION AND Maintenance . We declare that the machinery named below is intended to be assembled Signature of manufacture representatives: with other components to constitute a system of machinery. All parts Name: Position: Date: except for moving parts requiring the correct Installation of safety guards comply with the essential requirements of the Machinery Directive. The 1) C. Biggs Technical Director 20. 07. 07. machinery shall not be put into service until the system has been declared to be in conformity with the provisions of the EC Machinery Directive. 2) A.

10 Jones Manufacturing Director 20. 07. 07. Designation of machinery: MEV-DC2. Machinery Types: Continuous Extract Ventilation Unit Relevant EC Council Directives: 2006/42/EC (Machinery Directive). Applied Harmonised Standards: BS EN ISO 12100-1, BS EN ISO 12100-2, EN60204-1, BS EN ISO 9001, BS EN ISO 13857. Applied National Standards: BS848 Parts 1, and 5. Note: All standards used were current and valid at the date of signature. INFORMATION FOR SAFE Installation , OPERATION AND Maintenance . OF Nuaire Ventilation EQUIPMENT. To comply with EC Council Directives 2006/42/EC Machinery Directive and Installation REQUIREMENTS. 2014/30/EU (EMC). In addition to the particular requirements given for the individual product, the To be read in conjunction with the relevant Product Documentation (see ) following general requirements should be noted.