Ei Electronics Ei128R Common Instruction Manual

A15420-R1-Ei128RBU-UC-ENG
RELAY BASES & COVERS
FOR SMOKE, HEAT & CARBON MONOXIDE ALARMS
Common 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. Description of Models & Usage
Ei128R - Relay Base with remote terminal. Relay Output
250VAC / 5 Amps. Normally used directly
underneath Easi-fit Smoke & Heat Alarms. When
used with accessory cover Ei128COV the
combination may be sited at the fuse box or
other suitable locations. The combination can
also be used with other Ei Smoke, Heat &
Carbon Monoxide Alarms - see section 3.
Ei128RBU - Same as the Ei128R above but with the addition
of a rechargeable cell backup.
Ei128COV - Plastic cover for use with Ei128R & Ei128RBU
Relay Bases when they are not sited underneath
the actual alarms they are serving.
2. Ei128R & Ei128RBU Instructions
2.1 Introduction
The Ei128R & Ei128RBU Relay Bases switch a relay upon
receipt of an alarm signal from a suitable Ei Smoke, Heat or
Carbon Monoxide Alarm. The electrically isolated contacts
can be used for many applications such as signalling, turning
on lights, etc. The Relay Bases are powered by 230VAC
mains - with the Ei128RBU model having recharbeagle back-
up cells.
As supplied the relay operates continuously (e.g. 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 figures 1 & 2) the relay
will switch when fire is detected but will automatically switch
back after 5 seconds. This is commonly used with warden call
systems where only momentary short circuit signalling is
required.

2.2 Installation under Easifit Smoke / Heat Alarms

WARNING: Mains powered Relay Bases 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
9/1/08 10:56 AM
Models:
Ei128R
Ei128RBU
Ei128COV
1
Page 1