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Thank you for purchasing a Kidde Fyrnetics alarm. 
Please read through our guide in full. 

This Kidde Fyrnetics CO Alarm is suitable as a single station and/or multiple station
device - up to 18 alarms. It is designed for residential premises only.

Carbon Monoxide alarm

Installer’s Guide

230V Interconnectable Mains Operated Alarm  with 

Rechargeable Lithium Ion Back Up 

423D/9HIR CO Alarm with digital display,  Peak level Memory and Smart Interconnect

423/9HIR CO Alarm with Smart Interconnect

The Owner’s Manual should be left in a safe place 

for the property owner. e.g. near Consumer Unit.

Kidde Safety Europe, Mathisen Way, Colnbrook, SL3 0HB, UK.

www.kiddefyrnetics.co.uk

© Kidde Fyrnetics 2005

Contents

Section

1.

Installation

Section

2.

Recommended Locations for CO  Alarms

Section

3.

Where not to install your alarm

Section

4.

Installing the Alarm

Section

5.

Battery Checking and Charging

Section

6.

Initial Checking and Testing of Alarm

Section

7.

Interconnect Wiring

Section

8.

Interconnecting with Kidde CO, Smoke and Heat Alarms

Section

9.

Timing of Installing

Section

10.

Decorating

Section

11.

Ongoing Maintenance

Section

12.

Repair/Servicing

Section

13.

Limitations of CO Alarms

Section

14.

Troubleshooting

Section

15.

Service and Guarantee

Section

16

Specifications

Environmental Protection

Waste electrical products should not be disposed of with household waste.  Please recycle
where facilities exist.  Check with Local Authority or Distributor for recycling advice.

Electrical rating 230V AC, 
50Hz 30mA max per alarm 
(maximum 30mA for originating unit 
with 18 alarms interconnected).

Lic No: KM 98848

EN50291:2001

2512-7205-01.qxd:_  2008.4.1  2:05 PM  Page 1

Summary of Contents for Fyrnetics 423/9HIR

Page 1: ...Section 2 Recommended Locations for CO Alarms Section 3 Where not to install your alarm Section 4 Installing the Alarm Section 5 Battery Checking and Charging Section 6 Initial Checking and Testing of Alarm Section 7 Interconnect Wiring Section 8 Interconnecting with Kidde CO Smoke and Heat Alarms Section 9 Timing of Installing Section 10 Decorating Section 11 Ongoing Maintenance Section 12 Repair...

Page 2: ... 560 7 1 This would include Smoke CO Heat Alarms 2 Recommended Locations for CO Alarms Where To Install The CO Alarm The Kidde CO alarm should be mounted in or near bedrooms and living areas It is recommended that a Kidde CO alarm is installed on each level of a multi level home You may use the number and location of smoke alarms installed in the home according to current requirements as a guide t...

Page 3: ...rty areas e g boiler rooms Any location where the free flow of air to the alarm s vents could be interrupted e g behind curtains furniture Areas where routine maintenance or operating test reset button is dif ficult e g top of stairwells 3 Where not to install your alarm 3 4 Installing the Alarm These are mains powered alarms so isolate the mains supply before commencing installation They are for ...

Page 4: ...The Lithium Ion battery is to supply short term backup during a power cut Do not attempt to replace the battery as the alarm has no user serviceable parts Opening the alarm will invalidate the guarantee and could expose you to live parts Digital model only During the first 10 hour initial charge period or until the battery has charged Lb will be displayed along with the CO level usually 0 and with...

Page 5: ...e section 1 Total cable length between alarms must not exceed 250m 273yds and be 1 0mm in diameter 3 core and earth BS6243Y Wiring must conform to the IEE regulations BS7671 or latest edition Interconnection Interconnects directly with Kidde Fyrnetics Ion Smoke Alarms 123i 123 9hi 123 9hill 1SF23 9hi 1SF23 9hir 1SF23 9hire Photo Smoke Alarms 223i 223 9i 223 9hi 223 9ill 223 9hill 2SF23 9hi 2SF23 9...

Page 6: ...t alarms will not be tested and will not alarm However when pressing the Test button on an interconnected Smoke Heat alarm the CO alarm will emit a Smoke Fire audible and visual alarm pat tern of 3 long beeps 1 second of silence repeated Note You do not need to press the Test button to take a CO reading Smoke Heat Alarm Indicator When an interconnected Kidde Fyrnetics smoke alarm detects smoke or ...

Page 7: ...list of substances that at high levels can damage the sensor or cause temporary readings on the digital display that are not carbon monoxide readings Ethylene ethanol alcohol iso propanol benzene tolulene ethyl acetate hydrogen hydrogen sulfide sulfur dioxides most aerosol spray alcohol based products paint thinner solvent adhesive hair spray after shave lotion perfume auto fumes cold start and so...

Page 8: ...dditional strobe accessories to give a visual alarm CO Alarms are not a substitute for annual routine servicing of appli ances by a qualified installer Symptom 1 Green L E D not lit 2 Unit flashing Lb at power up 3 Alarm Beeping every 30 seconds 4 Alarm does not sound when test button pressed 5 Interconnected alarms do not sound when test button is pressed and held Possible cause solutions a Loss ...

Page 9: ...tered after the date of purchase or if it fails to operate due to incorrect selection siting installation maintenance or inadequate AC electrical power or damage caused by failure to abide by the instructions supplied The liability of Kidde Fyrnetics arising from the sale of this alarm or under the terms of this guarantee shall not in any case exceed the cost of replacement of the alarm in no case...

Page 10: ...or the property owner e g near Consumer Unit Kidde Safety Europe Mathisen Way Colnbrook SL3 0HB UK www kiddefyrnetics co uk Kidde Fyrnetics 2005 Lic No KM 98848 EN50291 2001 P N 810 1873 Rev B 2512 7205 01 Patent Pending 2512 7205 01 qxd _ 2008 4 1 2 05 PM Page 10 ...

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