Model ei144 heat, Installation & placement, Technical specification – Ei Electronics Ei144 User Manual
Page 2

Shannon Free Zone, Shannon, Co. Clare, Ireland.
Ph.
+353 61 471277
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+353 61 471053
Email.
Web:
www.eielectronics.com
E & OE As our policy is one of continuous product development, we reserve the right to alter product details without prior notice
.
Ei144 DataSht RevA
 
 
Model
Ei144 Heat
Installation & Placement 
 
Wiring for Interconnected Alarms
Be very careful about correctly wiring the alarms as mixing Live and Neutral 
will blow/damage interconnected alarms. 
 
Locate heat alarms in rooms adjoining or on escape routes 
– kitchens,
garages, boiler houses etc. where smoke alarms are unsuitable. Install within 
5.3m of potential sources of fire. 
 
Please consult instruction booklet for specific installation details 
Important Precaution:
Do not install the actual smoke/heat 
alarm itself in new or renovated 
buildings until all work is completed 
(including floor coverings) and the 
building has been fully cleaned. 
The wiring can be installed when 
appropriate. (Excessive dust and 
debris from building work can 
contaminate the smoke chamber 
and cause problems, and it will also 
invalidate the guarantee). If it must 
be installed, cover it completely, 
particularly around the edges, with 
a dust cover (eg. a plastic bag), 
until all cleaning is finished.. 
Connect wires to the unit as in 
wiring diagram. All wiring must 
comply with local codes. 
 
 
Technical Specification 
 
Sensor
Thermistor
 
Sensitivity:
Complies with BS 5446 Part 2: 
2003 
 
Source: 
Contains no radioactive material
 
Airspeed:
Essentially immune to the effect
of airspeed.
 
Button Test:
Simulates the effect of heat and 
checks electronics and horn. 
 
Supply Voltage: 
230V AC
 
Battery back up: 
9V Alkaline Battery
 
Power-On Indicator:
Continuous green LED
 
Alarm: 
Electronic Piezoelectric horn 
in unit 
 
Alarm Sound Output:
85dB (minimum) at 3m
 
Alarm Status:
Red LED flashes every second on
unit sensing heat
 
 
Temperature Range:
0° to 40°C
 
Humidity Range:
15% to 95% Relative Humidity
 
Interconnect:
Up to 12 interconnected mains 
powered easi-fit smoke or heat 
alarms, along with an EI128 relay 
base 
 
Fixing:
Easi-Fit mounting base
 
Plastic material:
UL94VO flame retardant
 
Dimensions: 
145mm diameter x 52mm depth
 
Weight: 
281g
 
Warranty:
5 year (limited) warranty
 
Approvals:
Kitemarked to BS5446-2:2003, CE 
Approved
 
Specifications are subject to change
