Installation manual
M1G Installation and Programming
Page 10
Two-Wire Smoke Zones (Zone 16)
To enable use of two-wire smoke detectors on Zone 16, position Jumper JP1 (located below Zone 16 terminals) so that the
two right hand pins are covered. Go to Installer programming mode, Menu 05 - Zone Definitions, and program Zone 16 as a
Fire zone (Def=10). Step to next location and program Wire Type=6. NOTE Use only compatible two-wire detectors listed on
the front label of the control. Do not mix brands. The maximum number of detectors is also listed on the front label. For
two-wire operation, a 820 Ohm EOL resistor part # ER820 must be used instead of the 2,200 Ohm resistor part # ER2200.
Use 18AWG Fire approved wire. Max. wire length = 1000 feet. Max. wire resistance should not exceed 13 Ohms.
Switched Power Connection (+SAUX)
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 +SAUX 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 the earth ground terminal or to the common terminals of Relay Output 3. These terminals 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 +SAUX Switched (Smoke) power output is protected by a 1.1A PTC.
The +VKP Keypad power output is protected by a 1.25A PTC. Output 2 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 2 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 7Ah 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.
+VAUX
NEG
AC
SW1
16.5 V
JUMPER TO START
WITH NO AC
POWER
AC
BATTERY
+
-
12V Battery
5 to 18Ah
Sealed Lead Acid
STATUS
REVERSE
BAT LEADS
UL Listed Transformer,
Class 2, 16.5VAC, 45VA
RED BLK
+
-
E
L
K
-
T
R
G
1
6
4
0