Ei Electronics Ei420 instruction manual Introduction, Installation, As a Repeater

A16261-RO-Ei420-UC-ENG 21/12/07 9:56 AM Page 1

Model: Ei420

Repeater and CO Alarm Interface

Choose a suitable mounting position near the mains supply but keep the Ei420 away from metal surfaces or large metal objects (e.g. water cylinder, fuse boards) which can reduce the RF signal range.

1. Disconnect the AC mains supply from the circuit that is

going to be used.

2. Where the incoming wiring is on the surface of the

wall/ceiling, the appropriately sized trunking / conduit must be

LIVE

INTERCONNECT

NEUTRAL

4. Connect the house wires to the terminal block as follows:

L-Live to wires coloured brown or marked L,

N-Neutral to wires coloured blue or marked N

IC- Hardwire Interconnect to an Ei Electronics mains powered

alarm as shown in Figure 4(a) and Figure 4(b). Note: when the

FOR USE WITH Ei261ENRC, 151TL, 154TL AND 156TLH

COMMUNICATES WITH ALL OTHER RADIOLINK DEVICES

Instruction Manual

Contains vital information on the product’s operation and installation. Read and retain carefully. If you are just installing this product the manual MUST be given to the householder.

1. Introduction

2.2 As a Repeater

The function of a Repeater is to receive and then re-transmit the RF signals. This shortens signal paths throughout the installation to give improved RF signal reliability. If purchasing the Ei420 for use as a Repeater it should be mounted in an intermediate position where the RadioLINK signal needs to be strengthened (for example see figures 1(a) and 1(b)). The Repeater function is not operational until all units have been

chosen to mate with the unit. There is one suitable surface

cabling knockout as shown in Figure 3 (the other two surface

entries are not recommended as the wiring may effect the

antenna signal). There is one rear entry knockout (see Figure

3.) Unscrew the cover attachment (see Figure 3). Use a sharp

knife to remove the material from the knockout, making sure

that there is no gap when mated with trunking/conduit.

L IC N L IC N

Ei420 is being used as a stand alone repeater, do not connect

anything to the Interconnect terminal (see Figure 5.)

NB: The unit must not be earthed so do not connect a green / yellow or copper earth wire to any terminal.

5. Activate the rechargeable cells by	carefully and gently
sliding the switch to the “on” position	(see Figure 3). This
switch must be in the ‘on’ position to ensure correct operation.

The Ei420 can be used for two purposes:

House Coded (see individual instruction lealets). The operation of the Repeater can be observed as the Ei420 turns on its red

REAR ENTRY	ON	RECHARGEABLE
		CELLS
KNOCKOUT		ON/OFF

Ei260ENRC Series

CO Alarm

Ei420

6. Fit and screw the cover to the Ei420 using the two screws

supplied.

(1)It connects the Ei260ENRC Series Carbon Monoxide Alarms with RadioLINK Smoke Alarms and accessories. When the CO Alarm detects CO it will trigger all the other RadioLINK units and vice versa. It can also be used to connect Ei151TL, 154TL and 156TLH smoke/heat alarms to other RadioLINK units.

light as a RadioLINK message is being repeated. A maximum of 10 RadioLINK units (e.g. Ei168RC and Ei420 units) can be set as Repeaters in any one system. If using more than 10 units within a system see Section 8 (Technical Specification).

INDICATOR			SLIDE SWITCH
	OFF
LIGHT
			HOUSE CODE
			SWITCH
ANTENNA
(KEEP CABLES
AWAY)		N
		IC	CONNECT MAINS
SCREW		L	TO TERMINAL BLOCK
		L
MOUNTING

Figure 4a - The Ei420 used as an interface with an

Ei260ENRC Series Carbon Monoxide Alarm

LIVE

INTERCONNECT

7. Connect the mains power to the Ei420 module. Check the

green light is on. If the green light changes to red every 10

seconds then switch off the mains power, remove the cover

and check that the battery slide switch is in the “on” position

(see Figure 3). Replace the cover and turn the mains power

Note: anytime the CO alarm is mentioned in these instructions it can also be applied to the Ei150 series of smoke/heat alarms.

(2)It can be used as a stand-alone RadioLINK Repeater unit in installations that require additional signal coverage but where the installation of an additional alarm may not be suitable. Installing an Ei420 in an intermediate position will shorten and/or provide multiple RF signal paths.

It is powered by 230V AC mains power and has built in rechargeable Lithium cells. It is a stand alone model with its own cover plate.

The Ei420 uses advanced transceiver and signal coding technology to ensure robust and reliable RF signalling.

Weak RF signal

Figure 2a

HOLES	IC
	N
MAINS
WIRING
WIRING TO	SURFACE
CARBON MOXOXIDE ALARM	CONDUIT

CABLE

ENTRY

Ei260ENRC

SERIES CO

ALARM

NEUTRAL

L IC N L IC N

Ei151TL, Ei154TL, Ei420

Ei156TLH Smoke/Heat

Alarm

Figure 4b - The Ei420 used as an interface with an

back on. If there is still a problem the rechargeable cells may

be depleted. Leave the unit on mains power for 2 hours to

charge and check that the green light is now on continuously.

8. Press and hold the House Code switch through the hole in

the cover using a small screwdriver, (see Figure 3) until the

green light changes to red. Immediately release the switch

and the light will flash red quickly. The green light will then

flash red every 5 seconds (this is a dual colour light so the

green light remains on when the red light is off and vice

versa). Similarly, put all the other RadioLINK units in the

property into House Code Mode (see relevant user

instructions) within 15 minutes (before the House Code

timeout period expires).

2.Installation

2.1RadioLINK Interface to an Ei260ENRC Series CO Alarm

If purchasing the Ei420 as a RadioLINK interface with a CO alarm then it should be mounted close to the alarm. It can be mounted a short distance away as shown in Figure 2 or it can be mounted directly above the alarm as shown in Figure 3.

Ei420 installed in an

intermediate position

to strengthen the RF

signal

Figure 3a - Connecting an Ei420 to an Ei260ENRC

Series CO Alarm

INDICATOR LIGHT

GREEN - MAINS

RED - HOUSE CODING

OR LOW BATTERY

HOUSE

CODE

SWITCH

Ei150 Series Smoke/Heat Alarm

L N

9. Check that all the RadioLINK units communicate with each

other by counting the number of times the light flashes on each

unit in turn. The light will flash red on the Ei420. For example,

3 units in the system should result in 3 flashes every 5

seconds, 4 units should result in 4 flashes and so on (if there

is a problem see Section 4 on Troubleshooting RF Link).

10. All the units will automatically exit the House Code Mode

after 30 minutes. However, we recommend that you manually

exit the House Code Mode by pressing and holding the House

Code switch on the Ei420 or on an Ei168RC until the House

Code light turns on solidly. Immediately release the House

Code switch. The light should stop flashing and an “Exit House

Ei420 CO Alarm

Figure 2b

Ei420

Code” signal will be sent to all other Ei168RC and Ei420 units

	2.3 Mounting and Wiring
approx	WARNING: Mains powered modules should be installed by a
1 to 2m
	qualified electrician in accordance with the Requirements for
	Electrical Installations, BS7671. Failure to install the unit correctly
Figure 1	may expose the user to shock or fire hazards. This unit is not
	waterproof and must not be exposed to dripping or splashing.

		Figure 5 - The Ei420 used as a stand alone
		RadioLINK Repeater
COVER	Ei420 COVER	3. Screw the Ei420 to the wall or ceiling after first removing the
ATTACHMENT		required knockout and bringing the house wires through it
SCREWS
	Figure 3b	(see Figure 3).

in the system. (With other RadioLINK units such as the Ei405,

Ei407, Ei411 etc., the units can be taken out of House Code

Mode by pressing their House Code switch - see their

instructions for details). This reduces the risk of accidentally

House Coding your alarms with other RadioLINK systems.

(Note: To clear House Codes see Section 8 - Technical Specification).

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