Kentec Electronics Sigma A-CP User manual

Sigma A-CP
Man-1194 Issue 04February 2014
Conventional Fire Control Panel
Installation and Operation Manual
www.acornfiresecurity.com
www.acornfiresecurity.com

Underwriters Laboratories (UL)
File number (S 8485)
Fire Alarm Equipment
Kentec Electronics Ltd.
Models K1842-XY, K1844-XY and K1848-XY of the Sigma A-CP Fire Control Panel are suitable as follows:
Without integrated dialer and conventional detection for 2, 4 or 8 zones.
Non-coded Signaling, DACT requires Integrated Dialer
Local Signaling Unit
Commercial protected-premises control unit
Style Y for Notification Appliance Circuits
Types of signaling services are NFPA 72 conventional IDC Class B and Style C or Class B,
Style B, automatic fire alarm, manual fire alarm
Compatibility APC0110
Install detectors with spacing as specified in section 90.19 of UL 864, 9th edition where units employing the multiple detector operation shall include
guidelines for installing of a minimum of two detectors in each protected space and to reduce the detector installation spacing to 0.7 times the
linear spacing in accordance with National Fire Alarm Code, NFPA 72. Also reference 55.3.1 and 55.3.2 of UL 864, 9th edition for these detector
spacing requirements.
“X” shown in the model numbering denotes a variable for color where red is “1” and gray is “4”.
“Y” shown in the model numbering denotes a variable for input voltage where 115 VAC is “0” and 230 VAC is “1”.
www.acornfiresecurity.com
www.acornfiresecurity.com

Copyright © 2014 by Kentec Electronics Ltd.
All rights reserved.
Kentec is a registered trademark of Kentec Electronics Ltd.
All other product or service names are property of their respective owners.
www.acornfiresecurity.com
www.acornfiresecurity.com

Contents
Section 1
Introduction
Using This Manual.................................................................................................................... 2
Document Conventions............................................................................................................ 3
Part Numbers ........................................................................................................................................................................................... 3
Writing Styles ........................................................................................................................................................................................... 3
If You Need Help ...................................................................................................................... 3
Limited Returns and Repairs Policy .......................................................................................... 3
In-Warranty Items ................................................................................................................................................................................... 3
Damaged Goods ..................................................................................................................................................................................... 3
Component Failure ................................................................................................................................................................................ 4
Service Replacement Items.................................................................................................................................................................. 4
Out of Warranty Items ........................................................................................................................................................................... 5
Items Returned For Credit.................................................................................................................................................................... 5
Kentec Electronics Ltd.............................................................................................................. 6
Section 2
Overview
Hardware Features................................................................................................................... 9
Internal Power Supply........................................................................................................................................................................ 10
Panel Controls and Indicators.......................................................................................................................................................... 11
Field Terminals...................................................................................................................................................................................... 17
Optional Dialer Board......................................................................................................................................................................... 19
Section 3
Installation
General Installation Checklist ................................................................................................ 20
Before You Begin ................................................................................................................... 21
Determining System Current Draw......................................................................................... 22
Standby-Battery Capacity.................................................................................................................................................................. 22
Operating Constraints........................................................................................................................................................................ 22
Mounting the Fire Control Panel ............................................................................................ 22
Preparing................................................................................................................................................................................................ 22
Removing the Fascia........................................................................................................................................................................... 23
Mounting................................................................................................................................................................................................ 23
www.acornfiresecurity.com
www.acornfiresecurity.com

Separation of Circuits ............................................................................................................ 24
AC Cabling ............................................................................................................................. 25
Standby-Battery Cabling........................................................................................................ 26
Field Cabling.......................................................................................................................... 28
Detection Zones................................................................................................................................................................................... 28
ALM RES .................................................................................................................................................................................................. 30
Notification Appliance Circuits (NAC) s......................................................................................................................................... 30
Relay Outputs........................................................................................................................................................................................ 31
Optional Dialer Board......................................................................................................................................................................... 31
Aux 24V ................................................................................................................................................................................................... 35
ALM RES .................................................................................................................................................................................................. 35
RS485 ....................................................................................................................................................................................................... 35
Testing the Installation.......................................................................................................... 36
Troubleshooting .................................................................................................................... 36
Section 4
Programming and Operating
Programming the Fire Control Panel ...................................................................................... 40
Open the Menu .................................................................................................................................................................................... 40
Navigate the Menu.............................................................................................................................................................................. 41
Configuration Codes........................................................................................................................................................................... 45
Control Operation................................................................................................................................................................................ 52
Single Zone Fire Condition ............................................................................................................................................................... 53
Silence/Resound Fire Drill ................................................................................................................................................................. 53
Reset ........................................................................................................................................................................................................ 53
Zone Trouble......................................................................................................................................................................................... 53
NAC Trouble .......................................................................................................................................................................................... 53
Power Trouble ...................................................................................................................................................................................... 53
System Trouble..................................................................................................................................................................................... 53
General Trouble.................................................................................................................................................................................... 54
Lamp Test............................................................................................................................................................................................... 54
Test Mode............................................................................................................................................................................................... 54
Disablements ........................................................................................................................................................................................ 55
Alarm Delays ......................................................................................................................................................................................... 56
Relay Operation.................................................................................................................................................................................... 57
www.acornfiresecurity.com
www.acornfiresecurity.com

Section 5
Maintenance and Repair
Cleaning the External Cabinet and Fascia-Door...................................................................... 58
Inspecting Batteries............................................................................................................... 58
Replacing Standby-Batteries.................................................................................................. 58
Removing the Standby-Batteries.................................................................................................................................................... 58
Installing the Standby-Batteries...................................................................................................................................................... 59
Replacing Fuses ..................................................................................................................... 59
Battery Fuse........................................................................................................................................................................................... 59
Transformer Fuse................................................................................................................................................................................. 60
AC Input Fuse........................................................................................................................................................................................ 61
Replacing Cabinet Components ............................................................................................. 62
Appendix A
Specifications
Electrical................................................................................................................................ 63
AC Line Connection ............................................................................................................................................................................ 63
Power Supply........................................................................................................................................................................................ 63
Ground Trouble Indication ............................................................................................................................................................... 63
Maximum Current Draw.................................................................................................................................................................... 64
Rechargeable Battery Circuit............................................................................................................................................................ 64
Field Wiring............................................................................................................................................................................................ 66
Initiating Device Circuit (IDC) Ratings ........................................................................................................................................... 68
Notification Appliance Circuit (NAC) ............................................................................................................................................. 68
Relay Ratings ......................................................................................................................................................................................... 69
AUX 24V .................................................................................................................................................................................................. 69
ALM RES .................................................................................................................................................................................................. 69
Dialer Board ........................................................................................................................................................................................... 69
Cabling.................................................................................................................................................................................................... 70
Operating Environment ......................................................................................................... 70
Physical Specifications........................................................................................................... 70
www.acornfiresecurity.com
www.acornfiresecurity.com

Appendix B
Equipment List
Sigma A-CP Fire Control Panels.............................................................................................. 71
Supporting Components and Replacements........................................................................... 72
Detectors............................................................................................................................... 74
Apollo...................................................................................................................................................................................................... 74
System Sensor....................................................................................................................................................................................... 74
Hochiki .................................................................................................................................................................................................... 75
Notification Appliances...................................................................................................................................................................... 75
Appendix C
Calculations
Determining the Amp-Hour Rating......................................................................................... 91
Current-Load......................................................................................................................................................................................... 92
NAC Wiring Length.............................................................................................................................................................................. 93
Appendix D
Operating Instructions
InspectingBatteries.................................................................................................................100
Replacing Standby-Batteries ....................................................................................................100
Related Documentation ...........................................................................................................100
Emergency Contact..................................................................................................................100
www.acornfiresecurity.com
www.acornfiresecurity.com

Section 1
Introduction
This manual describes conventional detection models of the Sigma A-CP Fire Control Panel. These
models can include or exclude dialer communication.
Models including dialer communication are the 2 zone K1852, 4 zone K1854 and 8 zone K1858.
Models excluding dialer communication are the 2 zone K1842, 4 zone K1844 and 8 zone K1848.
Power supply options of these models are available for 115 VAC or 230 VAC and cabinet colors are
available in red or gray.
Reference Appendix B, Equipment list of this manual for a complete description of features available for the
Sigma A-CP Fire Control Panel.
This section describes:
Using This Manual
Related Documentation
Document Conventions
If You Need Help
Contacting Kentec For Repair
The figure below illustrates the Sigma A-CP Fire Control Panel:
Figure 1-1
Sigma A-CP Fire Control Panel
www.acornfiresecurity.com
www.acornfiresecurity.com

Using This Manual
The following sections provide instructions for installing, testing and troubleshooting the Sigma A-CP
Fire Control Panel:
Section 1 Introduction provides document conventions, the technical help-line, repair and return
information.
Section 2 Overview provides a summary features of the Sigma A-CP Fire Control Panel.
Section 3 Installation describes how to setup, install, test and troubleshoot the Sigma A-CP Fire
Control Panel.
Section 4 Operation describes how to open security functions for Access Level 2 or Access Level 3,
identify Alarm Conditions, Controls and Indicators, understand Relay Contacts and how to
Configure Ancillary Circuit Boards.
Section 5 Maintenance and Repair describes how to maintain and repair the Sigma A-CP Fire Control
Panel.
Appendix A Specifications provide characteristics of the Sigma A-CP Fire Control Panel.
Appendix B Equipment List provides model numbers for Kentec Sigma A-CP Fire Control Panels, loop
devices, accessories, replacement parts and compatible Notification Appliances.
Appendix C Calculations provides calculations for determining load capacity, battery rating, and wiring
length of the Sigma A-CP Fire Control Panel.
Appendix D Operating Instructions provides an overview of Sigma A-CP Fire Control Panel status and
control instructions.
www.acornfiresecurity.com
www.acornfiresecurity.com

Document Conventions
This document contains conventions for part numbers and writing style.
Part Numbers
Part numbers are provided in Section 1, Appendix B and Appendix D of this manual. Refer to Appendix
D, Door Label for a diagram summary of this manual. Refer to Appendix B, Equipment List for a
complete list of part numbers required for completing this installation.
Writing Styles
Before you begin using the Sigma A-XT Fire Control Panel, familiarize yourself with the stylistic
conventions used in this manual:
Italic type Denotes a displayed variable, a variable that you must type, or is used for emphasis.
Courier font Indicates text displayed on a computer screen.
If You Need Help
If you need technical support contact Kentec at + 44 (0) 1322 222121 or e-mail the department,
[email protected]. Kentec technical support is available Monday through Friday, 8:00 AM to
5:00 PM and Saturday 8:00 AM to 12:00 PM.
Limited Returns and Repairs Policy
In-Warranty Items
All equipment supplied by Kentec Electronics Ltd is provided with a warranty, as defined in Section 8
(Warranties & Liability) of the Terms and Conditions of Sale. These warranties are between Kentec
Electronics Ltd (the Seller) and the company that placed the order upon the seller (the Buyer). The
warranty period is valid for 36 months from the delivery date and is non-transferable.
Damaged Goods
In the event of damage to equipment during transit or any defect in the quality of goods, the Buyer
shall notify Kentec Electronics Ltd within seven days of delivery as detailed in Section 8.5 of the Terms
& Conditions of Sale. The goods may then be returned to the Customer Service Department of Kentec
Electronics Ltd. for repair, or replacement parts may be supplied (by arrangement).
www.acornfiresecurity.com
www.acornfiresecurity.com

Component Failure
In the event of a defect of the supplied equipment during the warranty period, due to defective
materials or workmanship, then replacement parts shall be supplied to the Buyer using the Service
Replacement Item (SRI) scheme.
Service Replacement Items
The Buyer shall request the replacement part(s) required from the Customer Service Department. This
request shall be made by fax to [phone] or e-mail to [email protected] and shall include
the parts required, the panel Works Order (W/O) Number and the required delivery address.
If the Buyer is not aware of the required replacement part(s), additional advice may be obtained from
the Technical Support Department of Kentec Electronics Ltd. Once the SRI has been approved, items
are normally dispatched for next day delivery within the mainland UK, subject to stock availability. SRI
parts are supplied on the following terms and conditions:
SRI parts are loan items and are not available for resale.
At all times, Kentec Electronics Ltd. retains the title of SRI parts supplied, as detailed in Section 7.4
of the Terms and Conditions of Sale.
All SRI parts must be returned to the Customer Service department of Kentec Electronics Ltd
within 14 days of delivery.
Any SRI parts that have not been returned within 28 days of delivery will be invoiced at the price
given in the Kentec Price List, less discount.
Any returned items that are found to have failed due to fair wear and tear, willful damage,
negligence, abnormal working conditions, misuse or alteration or repair without the Suppliers
approval or failure to follow the sellers instructions will be subjected to a repair fee of up to the
price given in the Kentec Price List, less discount.
Any returned items that are not part of the original equipment or are not in warranty will be
invoiced at the price given in the Kentec Price List, less discount where applicable.
All SRI parts shall be returned in the same packaging as the replacement parts were supplied in.
Failure to ensure that adequate anti-static precautions are taken during the replacement of parts,
or in the return of SRI parts may result in an invoice of up to the price given in the Kentec Price List,
less discount.
Any SRI parts returned without the completed SRI delivery report or any SRI reference
documentation will be invoiced at the price given in the Kentec Price List, less discount.
The right to receive Service Replacement Items is regularly reviewed and may be withdrawn from
persistent abusers of this facility. Kentec reserve the right not to supply SRI items without prior notice.
www.acornfiresecurity.com
www.acornfiresecurity.com

Out of Warranty Items
Kentec Electronics Ltd provides a test and repair facility for most standard and special build products.
This facility can also recondition control panels, subject to availability of components.
Customer Repairs
Items for repair shall be returned to the Customer Service Department of Kentec Electronics Ltd. Any
items returned for repair must be accompanied with the following:
A request for repair work to be undertaken.
A customer contact name.
Details of the company requesting the repair.
Failure to supply the required information will result in the returned items being quarantined for a
period not exceeding 60 days. If the items are not identified within 60 days of receipt, then Kentec
Electronics Ltd reserves the right to dispose of these items or return them.
A written quotation will be provided for all items to be repaired that are not included in the repair
prices section of the Kentec Price list. No repairs or refurbishment will be undertaken without prior
authorisation from the customer and a written order for the repair work. Returned equipment will be
held awaiting authorisation for a period not exceeding 60 days from the date of quotation. After this
period, Kentec Electronics Ltd. reserves the right to dispose of these items or return them.
Repair Warranties
Repaired items are not covered by the normal Warranties and Liability conditions in the Terms and
Conditions of Sale. Subsequent failures of repaired items will only be covered if the failure is due to a
material or workmanship defect directly associated with the repair and for a period not exceeding
three months from the date of the repair.
Kentec Electronics Ltd are under no liability if the repaired or replaced components are found to have
failed due to fair wear and tear, willful damage, negligence, abnormal working conditions, misuse or
alteration or repair without approval or failure to follow the sellers instructions.
Items Returned For Credit
Items shall only be accepted for credit by written approval with the Operations Manager or Directors
of Kentec Electronics Ltd. Items will only be eligible for credit in the first 3 months from the supply
date.
Before any items are returned for credit, an RMA reference number must be obtained from the Sales /
Operations Department. This number must be used for any correspondence relating to the goods. All
goods returned for credit must be approved before receipt.
www.acornfiresecurity.com
www.acornfiresecurity.com

Written approval will then be issued using a Goods Return Application Form (KENQA196.03.03). A
copy of this form must be supplied with the returned goods. The RMA reference number must be
clearly marked on the outer packaging when returning goods to the company.
Goods must be returned to Kentec Electronics Ltd within 30 days of the issue of the Goods Return
Application Form. Only items listed on this from must be returned under the RMA reference. Items
returned without prior request for an RMA reference may be returned to the customer.
Failure to supply the required information will result in the returned items being quarantined for a
period not exceeding 60 days. If the items are not identified within 60 days of receipt, then Kentec
Electronics Ltd reserves the right to dispose of these items.
Any items returned for credit will be tested and returned to a production release condition. Any
material and labour costs associated with this process shall be deducted from the credit amount in
accordance with the Returned Goods Policy in the Kentec price list and at the discretion of the
Managing Director.
Kentec Electronics Ltd.
Units 25-27 Fawkes Avenue,
Questor, Dartford,
Kent. DA1 1JQ
United Kingdom
Registered in England:
No.1937570
Tel: [phone]
Fax: [phone]
www.acornfiresecurity.com
www.acornfiresecurity.com

Section 2
Overview
The Sigma A-CP Fire Control Panel is a conventional fire control panel with features for operating
detection zones, Notification Appliance Circuits (NACs), relays and auxiliary 24 volt power.
Models of the Sigma A-CP Fire Control Panel support synchronization protocols from Wheelock,
Gentex, Amseco and System Sensor.
These models are UL864 listed for operating:
Detection devices from Apollo, Hochiki and System Sensor
UL listed conventional initiation devices
Notification devices from Gentex, Wheelock, System Sensor and Amseco
The fire control panel provides Class B zone detection under default conditions and Class A loop
detection on one zone when configured. Default zones of the Sigma A-CP Fire Control Panel can
operate as NFPA 72 Class B, Style C or NFPA 72, Class B, Style B.
The functions of Style C provide trouble conditions for direct-shorts and opens on zone loops. The
functions of Style B provide alarm conditions for direct-shorts and trouble conditions for opens on zone
loops.
A Dialer Board can be installed as an optional feature to provide alarm and trouble reporting. The
Optional Dialer Board provides Contact ID or SIA format reporting through a standard POTS
connection.
Models of the Sigma A-CP Fire Control Panel provide a resettable, unregulated and special application
24 VDC power output suitable for powering 4 wire detectors on eight zones. These models also
include two unregulated solid state NAC outputs.
Relays are provided on these fire control panels for Trouble, Supervisory and Fire.
Access levels are provided for controls and programming on the Sigma A-CP Fire Control Panel. Access
Level 1 provides restricted controls, Access Level 2 provides less restricted controls with limited
programming and Access Level 3 provides unrestricted controls and programming.
www.acornfiresecurity.com
www.acornfiresecurity.com

The figure below illustrates Class B field wiring terminations of the Sigma A-CP Fire Control Panel:
Figure 2-1
Field Wiring Terminations
Models of the Sigma A-CP Fire Control Panel provide:
Zone Testing Zone testing provides the automatic resetting of zones in alarm for testing
purposes.
NAC Delay Delay on NAC outputs allows alarm to be verified before premises is evacuated.
Voltage Free Relay Contacts Voltage free relay contacts provide fire, supervisory and trouble reporting for
local control and signaling.
Power All models accept standby-batteries and contain a power supply with an
internal battery charger.
Models of the Sigma A-CP Fire Control Panel accept 7 AH or 12 AH valve-regulated, lead-acid batteries
and operate in special application modes for power inputs of 115 VAC or 230 VAC.
www.acornfiresecurity.com
www.acornfiresecurity.com

Hardware Features
The figure below illustrates hardware features of the Sigma A-CP Fire Control Panel:
Figure 2-2
Hardware Features
7 A/H BATTERY 7 A/H BATTERY
7 A/H BATTERY
12 AH Battery 12 AH Battery
L
N
FUSE
1
2
3
4
Key Item Description
1 Main Terminal Block
and Fuse Holder
The Main Terminal Block accepts input power and transformer
primary connections. The Main Terminal Block contains a 3.15 Amp
slow-blow fuse rated for 250 VAC. Connections from the primary of
the transformer to the Main Terminal Block are pre-wired at the
factory. Terminals of the Main Terminal Block are designated Line,
Neutral and Ground.
2 Field Terminals Field terminals provide connections for Zones, NACs, Relay Outputs
and AUX 24V.
3 Fascia The front fascia of the Sigma A-CP Fire Control Panel is populated
with controls and indicators for programming and operating the fire
control panel.
4 Standby-Batteries The Sigma A-CP Fire Control Panel accepts two 12 VDC, 7 AH or
12 AH batteries for operating during an AC power failure.
www.acornfiresecurity.com
www.acornfiresecurity.com

Internal Power Supply
The internal power supply of the Sigma A-CP Fire Control Panel meets UL 864, 9th edition and
provides a 4 Amp, linear power-source for operating FACP functions as well as charging the standby
batteries.
Reference Appendix C, Calculations to determine load current limitations of the 4 Amp power supply.
Features of the internal power supply include:
Battery-Backup Provides battery power to the load when the AC input of the power
supply falls below the rated level. The voltage at the load remains
within the specified range during these switching-transitions.
Short-Circuit Protection Provides a shut down on the load side of the power supply when the
load-current exceeds the maximum level.
Status The AC input to the power supply is supervised by the Sigma A-CP
Fire Control Panel. The control panel provides an LED status display
for normal and trouble conditions. Normal conditions occur when
the power supply is operating in an acceptable range. Trouble
conditions occur when the power supply is not operating in an
acceptable range.
Power Outputs
The Sigma A-CP Fire Control Panel provides power outputs to the terminals of NAC 1, NAC 2, and AUX
24V terminals.
Reference Section 3, Installation and Appendix A, Specifications for further information concerning NAC
and AUX 24V outputs of the Sigma A-CP Fire Control Panel.
NAC Outputs
NAC outputs of the Sigma A-CP Fire Control Panel are programmable and can be operated in
regulated or special application mode.
Reference Appendix A, Specifications for constraints and operating levels of these NAC output modes.
www.acornfiresecurity.com
www.acornfiresecurity.com

Panel Controls and Indicators
The fascia of the Sigma A-CP Fire Control Panel is divided into sections for controls and indicators.
The figure below illustrates controls and indicators of the Sigma A-CP Fire Control Panel:
Figure 2-3
Controls and Indicators
Key Description Key Description
A Upper Indicators D Upper Controls
B Central Controls E Lower Controls
C Lower Indicators
General System Status
Disabled
NAC Trouble
Mode
(+1)
Trbl.
(+10)
Trbl.
Trouble/Test/Disablement
Trouble/Test/Disablement
Enter
Trbl.
Select
Trbl.
Mode
Trbl.
Reset
Trbl.
Enable Access
Test Mode On
Delay On
AC Power On
Alarm Silenced
Supervisory
Disablement
System Trouble
General Trouble
Lamp Test
Trbl.
Silence/Resound
Fire Drill
Trbl.
Silence Buzzer
Trbl.
8765
4321
Fire
Alarm In Zone
Alarm In Zone
Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl. NAC1 NAC2Sys.FuseEarth Trbl.Trbl.Trbl.Trbl.Trbl.
Comms
Low
Batt.
Trbl.
Aux.24V
Trbl.
CPU
Fail
Batt.
Fail
Mains
W/Dog
Reset Processor Reset
Write
Enable
Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.Trbl.
A
B
C
A
B
C
D
E
www.acornfiresecurity.com
www.acornfiresecurity.com

Upper Indicators
The figure below illustrates upper indicators of the Sigma A-CP Fire Control Panel:
Figure 2-4
Upper Indicators
The table below describes upper indicators of the Sigma A-CP Fire Control Panel:
Key Upper Indicators LED Color
A General System Status
Fire Red
AC Power On Green
Delay On Yellow
Test Mode On Yellow
Disablement Yellow
Supervisory Yellow
NAC Trouble Disabled Yellow
General Trouble Yellow
System Trouble Yellow
Alarm Silenced Yellow
General System Status
Disabled
NAC Trouble
Mode
Trouble/Test/Disablement
Trouble/Test/Disablement
Enable Access
Test Mode On
Delay On
AC Power On
Alarm Silenced
Supervisory
Disablement
System Trouble
General Trouble
8765
4321
Fire
Alarm In Zone
Alarm In Zone
AA
B
BC
C
D
www.acornfiresecurity.com
www.acornfiresecurity.com

Key Upper Indicators LED Color
B Alarm In Zone
1 Trouble/Test/Disablement Yellow
Alarm Red
2 Trouble/Test/Disablement Yellow
Alarm Red
3 Trouble/Test/Disablement Yellow
Alarm Red
4 Trouble/Test/Disablement Yellow
Alarm Red
C Alarm In Zone
5 Trouble/Test/Disablement Yellow
Alarm Red
6 Trouble/Test/Disablement Yellow
Alarm Red
7 Trouble/Test/Disablement Yellow
Alarm Red
8 Trouble/Test/Disablement Yellow
Alarm Red
D Two Seven-Segment LEDs
Mode The Mode display contains two seven-segment LEDs for
programming configurations and identifying status conditions.
www.acornfiresecurity.com
www.acornfiresecurity.com