System Sensor MOD2W - Manual (Page 2)

SS-560-000 2 I56-4001-000
TABLE 1: OPERATION MODES
OPERATION MODE
GREEN
LED
YELLOW
LED
RED LED
Normal (standby) Blink 5 Sec. OFF OFF
No power/Non-operational OFF OFF OFF
Loop wiring fault Blink 5 Sec. ON OFF
EZ Walk Test Mode Blink 5 Sec. Blink 5 Sec. OFF
Alarm Smoke Blink 5 Sec. OFF ON
Maintenance Blink 5 Sec. OFF Blink 5 Sec.
Freeze Trouble Blink 5 Sec. OFF Blink 10 Sec.
NORMAL (STANDBY)
The module is powered and detectors on the loop are operating normally.
NO POWER/NON-OPERATIONAL
Power is not applied to the module or communication between the module
and the detectors on the loop is unsuccessful.
LOOP WIRING FAULT
If an open circuit occurs on the loop, the module will indicate the condition
by illuminating the yellow LED. 2-wire units will then power the style-D ter-
minals. When the wiring issue on the loop has been resolved, the module will
turn the yellow LED off.
EZ WALK TEST MODE
This indicates the module and detectors are in EZ Walk Test Mode. See “EZ Walk
Test” section for instructions on how to initiate and perform the EZ Walk test.
ALARM SMOKE
A smoke alarm will be indicated by the red LED.
A smoke alarm is not self-restoring. Once a smoke alarm has been signaled,
the red LED will illuminate until the module is reset by removal of power.
MAINTENANCE
This condition means one or more detectors on the loop have a smoke main-
tenance issue. See “Smoke Maintenance Inquiry” section for further details.
FREEZE TROUBLE
This condition means one or more detectors on the loop are measuring the
ambient temperature is near the freezing point. See “Freeze Trouble Inquiry”
section for further details.
INSTALLATION
MOUNTING
The module can be mounted to a 4-
11 /
16
inch back box or inside a listed, dedi-
cated enclosure. When mounting inside an enclosure with pre-stamped holes,
it may be easier to align the bottom screw hole first. It is not necessary to use
the module cover when mounting inside an enclosure.
FIGURE 2: MOUNTING
HOLE FOR MOUNTING
TO VISTA ENCLOSURE
(No. 6x3/4 Type AB)
SLOTS FOR MOUNTING
TO 4-11/16 JUNCTION BOX SLOT FOR MOUNTING
TO VISTA ENCLOSURE
(No. 6x5/16Type AB or Type F)
WIRING GUIDELINES
All wiring must be installed in compliance with the NFPA 70 standards, Na-
tional Electrical Code, applicable state and local codes, and any special re-
quirements at the local Authority Having Jurisdiction (AHJ).
The screw terminals in the mounting base will accept 14-22 gauge wire. Wire
connections are made by stripping approximately ¼” of insulation from the
end of the feed wire, inserting it into the proper base terminal, and tightening
the screw to secure the wire in place. Do not put wires more than 2 gauge
apart under the same clamping plate.
WARNING
Remove power from alarm control unit or initiating device circuits before in-
stalling detectors.
WIRING DIAGRAMS
Install module wiring in accordance with appropriate wiring diagrams.
(Figure 3)
The module relays have a maximum ON resistance of 25 ohms. This resis-
tance plus the wiring resistance to the panel must be less than the maximum
zone wiring resistance stated in the panel manual.
NOTE: If 2–wire i 3 detectors are used in conjunction with a style D initiat-
ing circuit, the MOD2W must be used to provide that capability. Ground
fault on a module’s 2-wire loop can be indicated at a control panel if the
control panel is capable of ground fault detection on the power supply to the
module and meets NFPA 72 ground fault indication requirements for initiating
device circuits. The installer must verify that capability.
TABLE 2: DIP SWITCH CONFIGURATIONS
DIP SWITCH # 1 DIP SWITCH # 2 DIP SWITCH # 3
ON
(DEFAULT)
Unused
Smoke Maint on
Smoke Trouble and
Form-B Maint Relay
Unused
OFF Unused
Smoke Maint on
Form-B Smoke main-
tenance Relay only
Unused
POWER UP AND COMMUNICATIONS
COMMUNICATIONS CHECK
Upon power up, the module will send a request for communication check. All
compatible detectors on the loop that understand the communication protocol
will respond. If all detectors respond correctly, the green LED will blink once
every 5 seconds. If the module does not get a response, it will turn off the
green LED and continue to try every 2 minutes until a response is received.
SMOKE MAINTENANCE INQUIRY
The module sends a smoke maintenance inquiry to the detectors every 24
hours. If a response indicating a maintenance problem is received, the red
LED on the module will blink once every 5 seconds and a smoke maintenance
condition will be indicated to the panel. It is likely that the detector needs to
be cleaned or replaced, refer to the detector instruction manual for mainte-
nance instructions.
FREEZE TROUBLE INQUIRY
The module sends a freeze trouble inquiry to the detectors every four hours. If
a response indicating a freeze problem is received, the red LED on the module
will blink once every 10 seconds and a smoke maintenance condition will be
indicated to the panel.
S0332-00