DSC Envoy NT9010 Installation Manual Download Page 58

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A p p e n d i x C : U L L i s t e d G r a d e A C o n t r o l U n i t R e q u i r e m e n t s

5 4

Table2: Contact ID Zone Alarm/Resto-
ral Event Codes (as per ADEMCO):

Program any of these codes for zone alarms/restorals
when using the standard (non-automatic) Contact ID
reporting format.

Table 3: SIA Format Automatic
Zone Alarm/Restoral Codes

A p p e n d i x C : U L L i s t e d G r a d e A

C o n t r o l U n i t R e q u i r e m e n t s

• Installer should verify communication format

between control unit and receiver.

• Entry delay must not exceed 45 seconds.
• Exit delay must not exceed 60 seconds.

• Minimum bell cutoff time is 4 minutes.

• Keyswitch (if used) must be mounted in a pro-

tected area.

• ‘Quick Exit’ feature must be disabled.

• ‘Bell Squawk on Trouble’ feature must be enabled.
• Minimum ‘Dialing Attempt’ must be 5 and maxi-

mum 10.

• Hardwired zones must be EOL configuration.

• ‘Code Required to Bypass Zones’ must be enabled.

• ‘Bypass Status not Displayed While Armed’ option

selected.

• ‘Test Transmission Cycle’ must be set for daily

transmission.

• ‘Keypad Lockout’ must be programmed.

• ‘Temporal Three Fire Signal’ must be enabled.

• ‘Closing Confirmation’ must be enabled.

• ‘UL Communications Priority’ must be enabled.

• ‘One time 1-hour User Enabled DLS Window’ must

be enabled.

• ‘Answering Machine/Double Call’ option must

NOT be enabled.

• ‘Wireless Supervisory Window’ must be pro-

grammed 4 hours or less.

• ‘RF Jamming Detection Zone’ must be pro-

grammed; zone type ‘Instant’.

NOTE:

This control unit is to be checked by a qualified technician at least once every 3 years.

Medical Alarms

(1)34

Entry

Exit

(1)AA Medical

(1)35 Day / Night

(1)A1 Pendant Transmitter

(1)36 Outdoor

(1)A2 Fail to Report In

(1)37 Tamper

Fire Alarms

(1)38 Near Alarm

(1)1A Fire Alarm

General Alarms

(1)11 Smoke

(1)4A General Alarm

(1)12 Combustion

(1)43 Exp. module failure

(1)13 Water Flow

(1)44 Sensor tamper

(1)14 Heat

(1)45 Module Tamper

(1)15 Pull Station

(1)4A Cross Zone Police Code

(1)16 Duct

24 Hour Non-Burglary

(1)17 Flame

(1)5A 24 Hour non-Burg

(1)18 Near Alarm

(1)51 Gas detected

Panic Alarms

(1)52 Refrigeration

(1)2A Panic

(1)53 Loss of Heat

(1)21 Duress

(1)54 Water Leakage

(1)22 Silent

(1)55 Foil Break

(1)23 Audible

(1)56 Day Trouble

Burglar Alarms

(1)57 Low bottled Gas level

(1)3A Burglary

(1)58 High Temp

(1)31 Perimeter

(1)59 Low Temp

(1)32 Interior

(1)61 Loss of Air Flow

(1)33 24 Hour

Zone Definition

SIA Auto Rep
Codes*

Zone Alm/Rest.

Delay, Instant, Interior, Delay
Stay/Away, Interior Stay/Away,
24-hr Burg.

BA-ZZ/BH-ZZ

24-hr Fire

FA-ZZ/FH-ZZ

24-hr Supervisory Buzzer

UA-ZZ/UH-ZZ

24-hr Sprinkler

SA-ZZ/SH-ZZ

24-hr Gas

GA-ZZ/GH-ZZ

24-hr Heat

KA-ZZ/KH-ZZ

24-hr Medical

MA-ZZ/MH-ZZ

24-hr Emergency (non-medical)

QA-ZZ/QH-ZZ

24-hr Waterflow

WA-ZZ/WH-ZZ

24-hr Freeze

ZA-ZZ/ZH-ZZ

24-hr Holdup

HA-ZZ/HH-ZZ

24-hr Panic

PA-ZZ/PH-ZZ

Latching 24-hr

BA-ZZ/BH-ZZ

* ZZ = zones 01-32

Summary of Contents for Envoy NT9010

Page 1: ... information on limitations regarding product use and function and information on the limitations as to liability of the manufacturer The entire manual should be carefully read NT9010 v 1 0 Installation Guide DLS 3 v1 3 and higher ...

Page 2: ......

Page 3: ...urned for replace ment under warranty will be credited or replaced at DSC s option Products not covered by this warranty or otherwise out of warranty due to age mis use or damage shall be evaluated and a repair estimate shall be provided No repair work will be performed until a valid purchase order is received from the Customer and a Return Merchandise Authorisation number RMA is issued by DSC s C...

Page 4: ... Announce ments 22 2 2 5 Arming and Disarming Options 22 2 2 6 Automatic Arming 23 2 2 7 Entry and Exit Delay Options 24 2 2 8 Bell Options 25 2 2 9 User Commands 25 2 2 10 Function Keys 29 2 2 11 Programming Wireless Keys 31 2 2 12 Fire Auxiliary or Medical and Panic Keys 32 2 2 13 Keypad Options 33 2 2 14 Sleep Mode 33 Section 2 3 Changing Other NT9010 Functions 2 3 1 Zone Definitions 34 2 3 2 Z...

Page 5: ...ter 1 Quick Set Up in the Installation Guide for more information on using Flash Programming 1 1 2 About the NT9010 Manual Set The NT9010 system has three manuals Installation Guide Programming Worksheets and User s Guide Installation Guide NOTE All sections of this guide are applicable to the NT9010 and NT9010A The Installation Guide contains two main chapters Chapter 1 Quick Set Up This chapter ...

Page 6: ...ardwired zones Access Codes 38 access codes 32 user codes 1 Master code 2 supervisor codes 2 duress codes and 1 maintenance code Remote Sounder Output Four wire supervised connection to optional remote sounder Can be wired up to 500ft 152m 22AWG from the NT9010 control unit Capable of steady or pulsed siren voice prompts and central station talk listen in sessions EEPROM Memory Will not lose progr...

Page 7: ...ss buffer Additional Features Keypad activated alarm output and communicator test Keypad lockout 128 event buffer time and date stamped Uploading downloading capability 1 1 4 Additional Devices WLS904 433 Wireless Motion Detector The wireless motion detector can be used to provide wireless interior protection The unit comes with four AAA batteries WLS904PL 433 Wireless Motion Detector with Pet Imm...

Page 8: ... 500ft 152m using 22AWG sheilded cable 1 1 5 Peel off Instruction Labels The Envoy unit comes with a set of peel off instruction labels already applied Installer should remove these labels after installation For future programming needs please see sample labels below for instructions The NT9010 s Flash programming will help you to quickly set up the system To begin 1 Press 8 2 Enter the default in...

Page 9: ...terference including electrical noise such as computers televisions and electric motors in appli ances and heating and air conditioning units large metal objects like heating ducts and plumbing which may shield the antenna Choosing Mounting Locations for Wireless Devices Each type of wireless device has its own set of guidelines for mounting locations Before deciding on mounting locations make sur...

Page 10: ...nchors for all screw locations secure the backplate to the wall 1 2 5 Connecting the Battery Before you attach the NT9010 to the backplate you must connect the battery The battery is used to provide backup power in the event of an AC power failure and to provide addi tional current when necessary such as when the system is in alarm NOTE Place the unit face down before removing the plastic 1 Remove...

Page 11: ...wnloading connect an RJ 31X jack to the R 1 T 1 RING and TIP terminals on the backplate as shown in Figure 2 NOTE Please ensure that all plugs and jacks meet the dimension tolerance and metallic plating requirements of the Code of Federal Regulations Title 47 Part 68 Subpart F For proper operation there must be no other telephone equipment con nected between the control panel and the telephone com...

Page 12: ...ed Loops Section 013 Option 1 Single End Of Line EOL Resistors To enable system detection of single end of line resistors programming section 013 option 1 must be OFF NOTE This option should be selected if either Normally Closed NC or Normally Open NO detection devices or contacts are being used End of Line Resistors Section 013 Option 1 Keyswitch Zone Wiring Zones may be programmed to be used as ...

Page 13: ...nciation Section 017 Option 4 Remote Annunciation Section 017 Option 5 Attach NT9010 to Backplate NOTE Before attaching the backplate be sure to connect the battery See 1 2 5 Connecting the Bat tery on page 6 When you have mounted the backplate to the wall com pleted the wiring and connected the battery you can attach the NT9010 unit to the backplate 1 Push the bottom of the NT9010 onto the backpl...

Page 14: ...choices in the NT9010 Programming Worksheets Here are some notes about system programming done through Flash Programming Zone Definitions When you enter a serial number for a device into the NT9010 Flash Programming the unit will analyze the number to determine what kind of device you are enrolling Based on the type of device the system will make the following programming choices NOTE To ensure th...

Page 15: ...unicator will be delayed an additional 90 seconds This provides time for a user to correct the problem If after the 90 second delay the zone is still violated the process will begin again the alarm will sound but the alarm communication will be delayed for 30 seconds If the user does not press the key after 30 seconds the alarm will latch on and the system will communicate a fire alarm to the cent...

Page 16: ... 701 to 705 it will be used Entering the Central Station Telephone Number When prompted enter the telephone number for the central station The number can be up to 32 digits long When you program the number the system automatically inserts the hexadeci mal digit D at the beginning to tell the system to conduct a dial tone search before dialing If necessary you can enter the following hexadecimal di...

Page 17: ...ed in 2 3 1 Zone Defini tions on page 33 1 2 9 Deleting Wireless Devices To remove a wireless device from the system you will need to use the advanced program ming sections 1 Press 8 then enter the Installer s code The default Installer s code is 5555 3 When prompted press 2 to go to advanced programming 4 Enter 804 then enter the 2 digit number of the zone you want to delete 01 32 The system anno...

Page 18: ...tions Are the batteries working and installed correctly Are there any large metal objects that may be preventing the signal from reaching the NT9010 The device must be located where at least three Good results are obtained If several devices show Bad results or if wireless keys operate inconsistently you may need to move the NT9010 See 1 2 2 Create an Installation Plan on page 5 for tips on choosi...

Page 19: ...kward Record button will not work in the advanced pro gramming sections except for sections 301 to 303 and 402 Step 4 Sections 802 804 or 807 have 2 or 3 digit sub sections To access program ming in these sections enter the programming sub section number NOTE If the section number entered is not valid the NT9010 will sound an error tone and say the section number that was entered Installer Code Se...

Page 20: ...for the system and for each of the zones If you enroll the zones using Flash Programming you can choose from five pre set labels for the zone please see Chapter 1 Quick Set Up Alternatively you can program custom labels using the advanced programming sections To program or change a label 1 From Advanced Programming enter section 807 2 Enter the 3 digit sub section number of the label 601 to 633 Th...

Page 21: ... the sixth entry spot for a label Recording Custom Labels You can record up to five custom labels for the system and for the zones using program ming sections 701 to 705 You can use any of these labels for the system or zone labels instead of the words available in the Audio Label Library To record a custom label 1 From Advanced Programming enter 807 2 Enter one of sub sections 701 to 705 3 Press ...

Page 22: ...ed You can access the NT9010 using a local telephone even if the telephone line is discon nected For this to operate properly you must enable Telephone Line Monitoring on the system see 2 3 15 Telephone Line Monitoring TLM on page 47 You can change the Telephone Access Code to any 3 digit code using numbers 0 through 9 as well as the and keys This access code can only be changed through Advanced P...

Page 23: ...te programming see Programming Access Code Attributes on page 20 The available access codes are as follows General Access Codes Access Codes 01 to 32 Each access code can be used to arm and disarm the system Additional access code attributes are also programmable to determine what abilities the code will have You can program access code attributes by following the instructions in this section Dure...

Page 24: ...By default each code has the attributes of the code used to program it For example if you use the Master code to program other access codes the new codes will have the same attributes as the Master code You can change the attribute programming by following the instructions below You cannot change Master code attribute programming The Master code has all attributes turned on except for the Bell Squ...

Page 25: ...04 only affect the NT9010 system command prompts if a prompt is disabled users will still be able to enter the command it refers to Sub section 003 determines which Status prompts the user will hear If an option is ON the system will announce the prompt when the appropriate condition is present If an option is OFF the system will not announce the prompt if the condition is present For example if y...

Page 26: ...ing and twice upon disarming If an alarm is in memory when the sys tem is disarmed the bell will sound three pairs of disarm squawks NOTE If you enable the Bell Squawk on Arming Disarming section 014 option 1 the bell will sound arm disarm bell squawks for all access codes regardless of the programming for attribute 7 see 2 2 2 Access Codes on page 19 Enable both the Squawk on Away Arming Disarmin...

Page 27: ...the system is auto arming in order to notify anyone on the premises that the system is being armed If a valid access code is entered during the auto arm pre alert period automatic arming will be cancelled If automatic arming is cancelled by a user the system will send the Auto Arm Reporting Code to the central station NOTE The Maintenance code cannot be used to cancel automatic arming If no code i...

Page 28: ... false alarms use the built in feature Audible Exit Fault If a delay type zone is violated within 10 seconds after the exit delay has expired the system will sound the entry delay warning through the keypad and siren alerting the customer that an improper exit was made If the system is disarmed within the entry delay no signal is sent If not the sys tem will continue to sound the alarm and send a ...

Page 29: ...restored or dis abled before removing the bypass Code required for bypass Section 015 Option 5 Bypass Displayed While Armed Section 016 Option 7 2 Trouble Announcements The system constantly monitors itself for several different trouble conditions If a trouble condition is present the System light will be ON and the keypad will beep twice every 10 seconds The trouble beep can be silenced by pressi...

Page 30: ...ady light will remain on and the system can be armed NOTE Once a zone is tampered or faulted it must be completely restored before the trouble condition will clear Device Low Battery A wireless device has a low battery condition Press 7 one two or three times to hear which devices are experiencing battery failure The following will occur Keypad beeps NT9010 Announces Press 7 1 Zones with low batte...

Page 31: ...e Enter 3 to change the auto arm time Enter the auto arm time in 24 hour format i e enter a 4 digit number in hhmm format 4 System Test For step by step instructions on performing a system test see the NT9010 User s Guide Full System Test When 4 is pressed the system will perform the following sound the alarm output for two seconds light all lights on the keypad sound the keypad buzzer for two sec...

Page 32: ...ill be required to enter a valid access code after pressing the Stay or Away function key in order to arm the system in the stay or away mode 0 Quick Exit Quick Exit will allow someone to leave an armed premise through a Delay type zone with out having to disarm and rearm the system When 0 is entered if the Quick Exit Enabled option is on the system will provide a two minute window to exit During ...

Page 33: ... remove entry delay from the system when the exit delay expires see 9 Arm ing Without Entry Delay on page 28 06 4 Door Chime On Off Pressing the key will toggle the Door Chime feature ON or OFF One solid beep means the feature has been disabled three short beeps means it has been enabled 07 6 4 System Test This function key provides the user with a simple method for testing the system see 6 User F...

Page 34: ...his key The NT9010 will announce the different volume levels 29 Record Press this key to begin recording a message through the NT9010 microphone After you hear the prompt Record Memo Now and a single 1 second tone begin recording your message When you are finished recording press 30 Playback Press this key to listen to a recorded message If there is no message recorded the NT9010 will sound an err...

Page 35: ... is entered otherwise it will sound until a code is entered or the alarm output times out Communication of the signal to central station is immediate If the Auxiliary or Medical keys are pressed and held for 2 seconds the unit beeps three times to verify activation The system will beep the keypad ten times rapidly to verify communication to the central station If the Panic keys are pressed and hel...

Page 36: ...rovide easy viewing in dim lighting con ditions If the Keypad Backlighting Option is enabled the keys will be illuminated If the Bypass Status Displayed While Armed option is chosen the System light will be ON while the system is armed to indicate that there are bypassed zones Number of Invalid Codes Before Lockout Section 012 Lockout Duration Section 012 Keypad Blanking Option Section 016 Option ...

Page 37: ...time 02 Delay 2 Zone This zone type operates the same as the Delay 1 zone option but can provide a different entry delay Typically this zone will be used for a garage door Refer to Section 005 System Times to program the Delay 2 zone entry delay 03 Instant Zone If this zone type is violated when the system is armed it will cause an instant alarm Typically this zone is used for windows patio doors ...

Page 38: ...ent alarm by default 21 24 Hour Latching Tamper If this zone is violated the installer must enter Installer Programming before the system can be armed The bell output will also activate for the programmed time and the system will communicate the alarm 22 Momentary Keyswitch Arm Zone Momentary violation of this zone will alternately arm disarm the system 23 Maintained Keyswitch Arm Zone When this z...

Page 39: ...me On Off on page 26 Bypass Enable Determines if the zone can be manually bypassed see section 1 Zone Bypassing on page 25 Force Arm Enable Determines if the system can be armed with the zone violated At the end of exit delay if this type of zone is violated it will be ignored by the sys tem Once the zone is secured it will be added back into the system This zone attribute is useful for a garage d...

Page 40: ...eless device serial number that may be programmed for the zone NOTE Fire zones are not supported as hardwired zones 2 3 4 Wireless Device Serial Numbers Normally you will use the NT9010 Flash Programming to enter device serial numbers If you need to delete a device from a zone or replace a device you can use the advanced pro gramming section To add replace or delete devices 1 From Installer s Prog...

Page 41: ...ogramming 1 Enter programming section 807 then sub section 093 2 Select an unused zone to be the RF Jam Detect zone Enter the 2 digit number 01 to 32 of the RF Jam Detect zone on the keypad 3 Program a Zone Definition for the zone number you assigned to the RF Jam Detect zone A 24 hour zone type is recommended if this is used NOTE For UL Listed installations program this zone type as Instant Zone ...

Page 42: ...m will always pulse dial The Post Dial Wait for Handshake determines the amount of time the system will wait for a valid handshake from the receiver If the system does not hear the handshake it will consider the call a failed attempt hang up and try again The Maximum Dialing Attempts determines the maximum number of attempts the sys tem will make to send a signal to the central station before indi...

Page 43: ...em to pause for 2 seconds HEX F end of telephone number marker 1st telephone number Section 301 2nd telephone number Section 302 3rd telephone number Section 303 3rd telephone number enable Section 380 Option 5 Alternate Dial Section 380 Option 6 2 3 10Communicator Account Codes The system Account Codes will be used by the NT9010 when communicating system events e g Low Battery Test Transmission T...

Page 44: ...ialized format that will communicate information quickly using tones rather than pulses In addition to sending information more quickly the format also allows more information to be sent For example rather than reporting an alarm zone 1 the Contact ID format can also report the type of alarm such as Entry Exit alarm zone 1 If Contact ID Sends Automatic Reporting Codes is selected the system will a...

Page 45: ...ion 381 Option 7 SIA Level 2 SIA is a specialized format that will communicate information quickly using frequency shift keying FSK rather than pulses The SIA format will automatically generate the type of sig nal being transmitted such as Burglary Fire Panic etc The two digit reporting code is used to identify the zone or access code number If the SIA format is selected the system can be programm...

Page 46: ...ystem to pause for 2 seconds HEX F end of telephone number marker The system will attempt to call the pager one time After dialing the digits in the telephone number the system will send the account number and reporting code followed by the key Hex C There is no ringback when using Pager Format The system has no way of confirming if the pager was called successfully A failure to communicate troubl...

Page 47: ...tomer on how to change the batteries of wireless devices to gain maximum use of this feature NOTE After the first Wireless Device Low Battery reporting code is sent the system will not send additional low battery events until the first low battery trouble is restored Low Battery Transmission Delay Section 370 Cross Zone Police Code Reporting The system will transmit the Cross Zone Police Code repo...

Page 48: ...d activated Auxiliary or Medical and Panic alarms openings closings duress alarms tamper alarms or opening after alarm conditions For this feature to work communications must be enabled section 380 option 1 and the system must be programmed to report the event For example if a reporting code for a zone is not programmed an event in that zone will not initiate Talk Listen In session See 2 3 12 Comm...

Page 49: ...ration Time expires The central station operator can extend the on line time by entering the extend time command See Central Station Talk Listen In Functions on page 45 below Central Station Talk Listen In Functions Once the central station has established an audio link with the NT9010 system there are several commands available to the central station operator Operators can access these commands u...

Page 50: ... This will happen for all events except test transmissions If the Answering Machine Double Call option is enabled or during the first 6 hours after power up the system will answer incoming calls for downloading provided the fol lowing conditions occur 1 The system hears one or two rings then misses a ring 2 The system starts the Answering Machine Double Call Timer 3 If the system hears another rin...

Page 51: ... UL Communications Priority Section 701 Option 8 One time 1 hour user enabled DLS window Section 702 Option 7 Must be turned on for UL Listed installations 2 3 15Telephone Line Monitoring TLM When the TLM Enable option is selected the system will supervise the telephone line and will indicate a trouble condition if the telephone line is disconnected If the TLM Enable option is ON the system will c...

Page 52: ...e events after the swinger shutdown level has been reached This will pre vent the system from overwriting the entire buffer if a problem exists see 2 3 18 Swinger Shutdown on page 48 The event buffer can be uploaded to a computer for viewing through the DLS software Event Buffer Follows Swinger Shutdown Section 013 Option 7 2 3 18 Swinger Shutdown The swinger shutdown feature is designed to preven...

Page 53: ...E If Installer Lockout is enabled 990 the relay will click 10 times when individual defaults are performed the section will still default NOTE It is recommended that an NT9010 default be performed when any defaulting is required Restore NT9010 to default programming Section 999 Restore main control only to default programming Section 992 Restore wireless receiver only to default programming Sectio...

Page 54: ...ns are met 1 The system is disarmed 2 The Keypad Blanking option is disabled section 016 3 3 The Fire Bell is Continuous option is disabled section 014 8 4 The Transmission Delay is disabled if Transmission Delay is not required section 370 NOTE Fire Troubles are not supported in Walk Test To perform a Walk Test do the following 1 Enter Advanced Programming 2 Enter Section 901 When any zone is vio...

Page 55: ...Fire Alarm Code NFPA 72 CAN ULC S553 M86 or other appropriate national standards for instal lation recommendations Do not locate smoke detectors at the top of peaked or gabled ceilings the dead air space in these locations may prevent the unit from detecting smoke Avoid areas with turbulent air flow such as near doors fans or windows Rapid air movement around the detector may prevent smoke from en...

Page 56: ...Direction Automatic Contact ID Codes SIA Auto Rep Codes 320 to 323 Zone Alarms zone goes into alarm A R 1 3A See Table 3 324 to 327 Zone Restorals alarm condition has been restored A R 1 3A 328 Duress Alarm duress code entered at keypad A R 1 21 HA 00 328 Opening After Alarm system disarmed with alarm in memory A R 4 A6 OR 00 328 Recent Closing alarm occurs within two minutes of system arming A R ...

Page 57: ... 3 73 FT 00 FJ 00 349 to 350 Gen System Trouble Rest Service Required trouble occurs view troubles using 2 trouble restored MA R 3 AA YX 00 YZ 00 351 Line 1 or 2 FTC Restoral system has restored communications to central sta tion on line 1 or 2 after FTC MA R 3 54 YK 00 351 Event Buffer is 75 Full event buffer is almost full since last upload MA R 6 23 JL 00 351 DLS Lead In downloading session sta...

Page 58: ... Supervisory Window must be pro grammed 4 hours or less RF Jamming Detection Zone must be pro grammed zone type Instant NOTE This control unit is to be checked by a qualified technician at least once every 3 years Medical Alarms 1 34 Entry Exit 1 AA Medical 1 35 Day Night 1 A1 Pendant Transmitter 1 36 Outdoor 1 A2 Fail to Report In 1 37 Tamper Fire Alarms 1 38 Near Alarm 1 1A Fire Alarm General Al...

Page 59: ...ter and Magnet Mount the backplate of the transmitter using the screws provided and replace the circuit board The head of the screw must be below the circuit board so that the sen sor is not shorted out Use flat headed screws only Mount the magnet no more than 6 4mm from the transmitter Use the spacers provided Once the unit and magnet are mounted open and close the window door to ensure that none...

Page 60: ...eless receiver See the Placement Test instructions in the Instruction Sheet for your receiver or in the installation manual for your system When a location has been determined remove the plas tic from the mounting holes and locate the backplate on the wall and mark screw loca tions It is suggested that wall anchors be used for all screw locations Secure the back plate to the wall and then secure t...

Page 61: ... red LED Five seconds after motion is detected the detector will send a signal to the receiver and the LED will flash rapidly 5 times The detector will be in walk test mode until it has sent 10 transmissions To verify the pet immunity of the detector place the ani mal s within the coverage area and then move out of the zone Encourage the pet to move around as it normally would and ensure that it m...

Page 62: ...stem may not properly alert occupants of a fire for a number of reasons some of which follow The smoke detectors may have been improperly installed or positioned Smoke may not be able to reach the smoke detectors such as when the fire is in a chimney walls or roofs or on the other side of closed doors Smoke detectors may not detect smoke from fires on another level of the residence or building Eve...

Page 63: ......

Page 64: ...there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be deter mined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Re orient the receiving antenna Increase the separation between the equip...

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Summary of Contents for Envoy NT9010

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