M1EZ8 Installation and Programming
Page 9
[Effective w/Firmware 4.3.6]
Two-Wire Smoke Zones (Zone 8)
To enable the use of two-wire smoke detectors on Zone 8, move Jumper JP1 to the 2 wire smoke position. Go to the installer
programming mode, Menu 05 - Zone Definitions, and program Zone 8 as a Fire zone (Def=10). Program the Wire Type as a 6.
NOTE Use only compatible two-wire detectors as listed on the front label of the control. Do not mix brands. The
maximum number of detectors is also listed on the front label. When jumper JP1 is set for two-wire operation, a 680
Ohm EOL resistor (furnished in the hardware pack) must be used instead of the 2,200 Ohm. Maximum wire resistance
must not exceed 60 Ohms.
Switched Power Connection (+VSMK)
Four-wire smoke detector and other devices that require a temporary power disruption in order to reset or unlatch from the
alarm state (i.e. smoke detectors, etc.) should be connected to the +VSMK 12 Volt DC switched power terminal. When a
smoke reset is performed, the operating voltage to these devices is momentarily interrupted.
Auxiliary Power Connections (+VAUX)
Motion detectors, glass breaks, etc. and other devices requiring unswitched 24-hour power should be connected to one of the
auxiliary terminals, +VAUX. All negative terminals on the terminal strip are at the same reference and may be used whenever
a common (circuit ground) negative is required. Use caution when wiring the control to distribute the load devices among the
supply and the negative terminals evenly.
NOTE: Circuit ground refers to any negative terminal connection on this control.
This does not refer to earth ground or to the common terminal of the relay output.. These are not at the same voltage
potential and should not be wired so that they are electrically connected to a negative.
PTC (Positive Temperature Coefficient) Circuit Breakers
The +VAUX Auxiliary power and J16 power output terminals are protected against shorts and overloads by a 1.25A PTC. A PTC
is a solid state, auto-restoring type of circuit breaker. The +VSMK Switched (Smoke) power output is protected by a 1.1A PTC.
The +12VKP Keypad power output is protected by a 1.25A PTC. The alarm output is protected by a 1.25A PTC.
NOTE:
Sometimes it may be necessary to remove power (unplug the outputs) for approx. 20 seconds after a short, to allow the
PTC to reset. Even if the short is no longer present, the remaining residual current draw may be so high that the PTC
cannot determine that the short is gone. If the PTC re-trips, check the field wiring and repair.
Transformer Primary Power Input (AC)
The control is powered by a 16.5 VAC, 40 min. VA, UL Listed Class II (power limited) transformer (ELK-TRG1640). The
specified sized and rated transformer must be used to operate this control. The transformer must be connected to a 120 VAC,
24-hour outlet not controlled by a switch other than an approved overcurrent protection device.
Connect the transformer to the AC Terminals using 16 to 18 gauge minimun wire. Do not exceed 50 feet between the
transformer and the control or run the AC power in a multiconductor with other system circuits. Leave the transformer
unplugged as well as the standby battery until all other connections have been made.
Standby Battery Connection
Connect the BLACK wire to the Neg (-) terminal on the battery, the connect the RED wire to the Pos (+) terminal on the battery.
The control is designed to operate with and recharge a 12 volt, sealed lead acid battery from 5Ah up to 18 Ah for backup of the
primary power supply. The control maintains a float charge for the battery of 13.8 VDC at 100 mA. This is in addition to the
continuous output of 1.5 Amps that the power supply maintains (see maximum current drains for UL Listed Systems).
CAUTION: Do not reverse the battery leads! The control has special circuitry which helps protect it from battery reversal
damage for short durations. However, prolonged reversal of the battery leads may cause permanent damage. A reverse
battery warning LED is located to the left of the power On/Off switch. If this light is ON, turn the power off immediately
and correct the battery lead connections.
ST
A
T
U
S
UL Listed Transformer
,
Class II, 16.5VAC, 45VA.
i.e ELK-TRG1640
Do not connect to a
switched outlet.
POWER
Sealed Lead Acid Battery
12Volt - 5Ah min. (ELK-1250)
NOTE: See UL requirements for
standby times and battery sizes.
The control is capable of
charging up to an 18Ah battery.
Test battery regularly with
ELK-BLT Battery Life Tester.
Replace every 3-5 years
BA
T
T
ERY
RE
D
BL
K
16
V
XFM
R
AC
AC
Status LED
:1 blink = Normal Operation.
2 fast blinks = Bootloader mode.
4 fast blinks = Initializing EEPROM memory.
5 fast blinks = Memory/Operation overflow.
Power LED
is ON when AC Voltage is present.
12V Battery
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