Gemini C-Series GEMC-NAC Extender Installation Instructions 1
OVERVIEW
The GEMC-NAC7S or GEMC-NAC7L (referred to as "GEMC-NACXX" throughout this manual) can be used as either:
•
A UL864 9
th
edition accessory to a Gemini C-Series Combination Fire & Burglary Alarm control panel
--or--
•
A UL864 9
th
edition NAC Extender for use with any listed Fire Alarm Control Panel (FACP)
The dual nature of the GEMC-NACXX requires this manual be divided into two individual sections: When the GEMC-
NACXX is used with the Gemini C-Series control panels, proceed to the next section named "
GEMINI C-SERIES OP-
ERATION
" directly below. When used with a listed Fire Alarm Control Panel as a stand-alone NAC Extender, stop here
and turn to page 21.
GEMINI C-SERIES OPERATION
GEMC-NAC7L / GEMC-NAC7S
SUPERVISED NAC EXTENDER
INSTALLATION INSTRUCTIONS
R
333 Bayview Avenue
Amityville, New York 11701
For Sales and Repairs, (800) 645-9445
For Technical Service, (800) 645-9440
Publicly traded on NASDAQ Symbol: NSSC
© NAPCO 2010
WI1821 08/10
The GEMC 7-Ampere NAC Extender includes 2 models: The
GEMC-NAC7L
(used with the large enclosure) and
GEMC-
NAC7S
(used with the small enclosure).
Notification Appliance Circuits (NAC's)
A Notification Appliance Circuit is a circuit or path directly connected to a
notification appliance
, i.e. any audible, tactile or
visual signal--or any combination thereof--employed to indicate a fire, supervisory or trouble condition.
The Gemini C-Series control panels comply with National Fire Protection Association (NFPA) requirements for temporal
pulse sounding of fire notification appliances. Use only the specified UL Listed notification appliances.
Note:
For IN-
DOOR / DRY LOCATION USE ONLY.
INTRODUCTION
When used with a Gemini C-Series control panel, the
GEMC-NACXX functions as if it were two separate mod-
ules, an
External Output
("Fire NAC Extender" board)
with 7 of the 8 outputs utilized (the first 4 supervised) and
a
4-Zone EZM
(Expansion Zone Module) used to send
the status of a device (AC ON/OFF, BATTERY GOOD/
TBL, GROUND FAULT and TAMPER) to the C-Series
control panel.
The GEMC-NACXX is wired to the 4-wire fire bus of the
C-Series control panel, and provides:
•
4-Supervised Outputs suitable as 24V, maximum 2A
each, combined 6.5A maximum regulated Notification
Appliance Circuits. These outputs can be configured
as:
•
4 Class B or
•
1 Class A and 2 Class B or
•
2 Class A
•
3-Unsupervised Form-C Dry relay outputs activated by
a programmed event generated by the Gemini C-Series
control panel (the 8th output is not used)
•
One supervised, isolated GEMC-Remote Bus interface
•
One normally-closed (N/C) housing tamper input, identi-
fied by trouble on dedicated integral EZM zone
•
Isolated integral ground-fault detection circuit (detects
1.25K
Ω
to ground or less)
•
One isolated input (terminals 1-2) to synchronize
"Smart" outputs (Listed
Wheelock
or
System Sensor
horns/strobes) with other outputs from the C-Series
motherboard or other GEMC-NACXX devices
●
Power supply contains integral battery charger capable
of charging up to 4 pairs of 7AH / 7.5AH / 8AH sealed
lead acid or gel type 12V batteries.
Note:
All batteries
must be of the same AH rating.
●
The system monitors for low battery, no battery, brown-
out and monitors battery charging circuit voltage, identi-
fied by battery trouble on dedicated integral EZM zone
•
Remote bus interface and two Inputs are isolated, thus
allowing for separate ground fault detection and annun-
ciation
●
Allows audible notification appliances (horns) to be si-
lenced while visual notification appliances (strobes)
continue to operate
●
Input allows synchronized
Wheelock/System Sensor
operation between the motherboard or other C-Series
NAC circuits, allowing for multiple NAC circuits to be
used within the same area
●
Each of the 4 NAC circuits are individually supervised
for opens or shorts, and will annunciate and report
separately
●
Solid State over-current protection on the four NAC's
