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(Excessive dust and debris from building work can contaminate the smoke chamber or heat sensor and cause problems, it will also invalidate the guarantee). If it must be installed, first cover it completely, particularly around the edges, with a dust cover (eg. with the elasticated cover supplied or a plastic bag), until all cleaning is finished. The Alarm must not be connected when the house wiring insulation is being checked with high voltages. i.e. Do not use a high voltage insulation tester on the alarm. WARNING: Mains operated Alarms should be installed and interconnected by a qualified electrician in accordance with the Regulations for Electrical Installations published by the Institution of Electrical Engineers (BS7671). Failure to install this Alarm correctly may expose the user to shock or fire hazards. WARNING: The Alarm must be continuously powered 24 hours a day so it is important that it is not on a circuit that can be turned off by a switch. Note: BS 5839-6 2004 gives the folowing recommendations regarding the mains supply to be used in a Grade D system (The Ei141/146 /161RC/166RC Smoke Alarms and Ei144/164RC Heat Alarms can be used in a Grade D system). The power supply for the Alarms should be derived from the public electricity supply to the dwelling. The mains supply to the Alarms should take the form of either: (a) an independent circuit at the dwelling’s main distribution board, in which case no other electrical equipment should be connected to this circuit (other than a dedicated monitoring device installed to indicate failure of the mains supply to the Alarms); or (b) a separately electrically protected, regularly used local lighting circuit. Alarms should be connected on a single final circuit, unless the means of interconnection is by radio signals (e.g. RadioLINK). (See BS 5839-6: 2004 for further information) Note: The Ei Electronics RadioLINK Base Ei168RC (for use with Ei161RC/164RC/166RC models only) can be used to eliminate interconnect wiring, make system extensions and provide simple and cost effective compliance with BS 5839-6: 2004. 4.1 Mounting & Wiring Alarms 1. Select a location complying with the advice in previous sections (see pages 4-10). 2. Disconnect the AC mains supply from the circuit that is going to be used. 3. Lift off the wiring cover as shown in Figure 3. The house wiring must be connected to the terminal block on the mounting plate as follows: L: Live - connect to the house wires coloured brown or marked L. N: Neutral - connect to the house wires coloured blue or marked N. 11 B16008-R0-160RC SERIES-U&C 17/1/07 11:13 AM Page 11 See page 14 for information on interconnection. Note: Wiring must be installed in compliance with local regulations. FOAM CEILING GASKET INSERT SCREWDRIVER TO LIFT AND REMOVE WIRING COVER Figure 3 Warning: Mixing the Live and Neutral connections when interconnecting alarms will damage all the alarms - ensure that the same colours are used throughout the premises for Live, Neutral and Interconnect wires. We strongly recommend that you check for the following before connecting the alarm: • check for Live and Neutral using a two probe tester. • check for Live using a neon tester. • check that the Interconnect wire is NOT connected to Live, Neutral or Earth. Do not use an Earth wire for the Interconnect line. N.B.The alarm does not need to be earthed.However the terminal marked is provided for the convenience of the installer so that any copper Earth wire or cable coloured green & yellow, can be safely terminated. To interconnect the Alarms connect all the IC terminals together as shown in Figure 4 (see “Interconnecting Alarms” section on page 14). REMOVEABLE TRUNKING DOOR FOR Figure 4 4. If the mains wires are recessed, bring the wires through the rear hole in the mounting plate as shown in Figure 4. 12 B16008-R0-160RC SERIES-U&C 17/1/07 11:13 AM Page 12 If the mains wires are being brought along the surface: (a) position the mounting plate so the cable trunking is as shown in Figure 4. (b) the mounting plate has a removable section, take it out to interface directly with 25 mm conduit as shown in Figure 5.If interfacing to 16 mm conduit carefully cut around the marked section, leaving the top intact and replace the section. (If you are not using surface wiring, the removable section must be left in place for electrical safety reasons). Figure 5 There are two other positions which are also suitable for the surface wiring to enter (and exit) the alarm, one next to the removable section and another directly opposite. 5. Carefully align the mounting plate and screw into place. Connect the wires to the terminal block. With recessed wiring, ensure the rear gasket seals around the edge of the hole in the ceiling or wall. This is to prevent air draughts affecting the smoke/heat entering the alarm. If the hole is too large or the alarm does not seal it, it should be sealed with silicone rubber or equivalent. 6. Replace the wiring cover. Check the ...

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