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RADIOLINK RELAY
FOR USE WITH EI168, 405, 405TY & 3105RF
Instruction Manual
Contains vital information on the products operation and
installation. Read and retain carefully. If you are just installing
this product the manual MUST be given to the householder.
1. Introduction
The Ei428 RadioLINK Relay Module is a device that switches
a relay upon receipt of an alarm signal from a suitable Ei
smoke/heat alarm. The electrically isolated contacts can be
used for many applications such as signalling, turning on
lights, etc.
The Ei428 is designed to operate with Ei
RadioLINK products (Ei168, 405, 405TY, 407, 410, 411 &
3105RF).
The Ei428 RadioLINK Relay Module is powered by the
230VAC mains and has rechargeable back-up cells. As sup-
plied the relay operates continuously (i.e. it switches when
one of the smoke / heat alarms detects fire and switches back
when the smoke clears). When the slide switch is moved to
the pulse 'P' position (see figure 1b) the relay will switch when
fire is detected but will automatically switch back after 5 sec-
onds. This is commonly used with warden call systems where
only momentary short circuit signalling is required.
WARNING: Mains powered Ei428 RadioLINK Relay modules
should be installed by a qualified electrician in accordance
with the Regulations for Electrical Installations published by
the Institution of Electrical Engineers (UK) (i.e. BS7671)
Failure to install the unit correctly may expose the user to
shock or fire hazards. This unit is not waterproof and must not
be exposed to dripping or splashing.
1. Choose a suitable mounting position near the mains supply
and the device to be connected to the relay. Keep it away
from metal surfaces or large metal objects (e.g. water cylin-
der, fuse boards) which can reduce the RF signal range.
2. Disconnect the AC mains supply from the circuit that is
going to be used.
3. Where the incoming wiring is on the surface of the ceiling,
the appropriately sized trunking / conduit must be chosen to
mate with the unit. Use a sharp knife to remove the material
www.acornfiresecurity.com
MODEL Ei428
2. Installation
1
Model: Ei 428
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Summary of Contents for Ei Electronics Ei428SK
- Page 1 www.acornfiresecurity.com Model: Ei 428 RADIOLINK RELAY FOR USE WITH EI168, 405, 405TY & 3105RF Instruction Manual MODEL Ei428 Contains vital information on the products operation and installation. Read and retain carefully. If you are just installing this product the manual MUST be given to the householder. 1.
- Page 2 www.acornfiresecurity.com INDICATOR LIGHT GREEN - MAINS RED - HOUSE CODING OR LOW BATTERY HOUSE CODE SWITCH MODEL: Ei428 RADIOLINK RELAY WARNING: DISCONNECT MAINS BEFORE REMOVAL COVER ATTACHMENT SCREWS Figure 1a from the knockout, making sure that there is no gap when mated with ducting/conduit.
- Page 3 www.acornfiresecurity.com If momentary relay operation is required, carefully and gently slide the yellow switch to the “P” position with a small screw- driver (see figure 1b). This must be done before the mains power is connected or the rechargeable cells are activated. 7.
- Page 4 The radio link interconnection should then be re-checked again. 4. Limitations of Radio Communications Ei Electronics radio communication systems are very reliable and are tested to high standards. However, due to their low transmitting power and limited range (required by regulatory bodies) there are some limitations to be considered.
- Page 5 www.acornfiresecurity.com in a particular installation. If this device does cause such interference, which can be verified by turning the device on and off (remove the mains supply and turn off back up power supply), the user is encouraged to eliminate the interference by one or more of the following measure: (i) Re-orientate or re-locate the unit (ii) Increase the distance between the Ei428 and the device...
- Page 6 RadioLink Base was pur- chased and date of purchase. 8. Five Year Guarantee Ei Electronics, guarantees this Ei 428 RadioLink Relay for five years from date of purchase against any defects that are due to faulty materials or workmanship.
- Page 7 P/N A15267 Rev 0 © Ei Electronics 2004 www.acornfiresecurity.com...
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