I'm trying to wire up a 4-wire carbon monoxide sensor from System Sensor.
Unfortunately, the information in the installation manual doesn't go into a lot of detail on how to wire up a CO sensor, and what zone to configure it as.
I'm using the System Sensor CO1224T detector, and I have 2 of these daisy chained to each other. 4 wires run to the first sensor, and 6 wires run from the 1st sensor to the 2nd sensor.
The system sensor wiring diagram seems to indicate that the CO sensor has it's own power supervision relay built in.
http://www.systemsensor.com/pdf/I56-3111.pdf
It also says to configure it differently to standard 4-wire smoke alarms.
#1 I am connecting to Zone #2. Should the jumper be in the NRM or SMK position
#2 Which wiring diagram do I follow - do I wire it up like a 4 wire smoke on Z1-4 (i.e. only use one of the zone terminals, and the other goes to switch 12V).
#3 Looking at the diagram, is this considered a normally closed circuit which opens on either power fail, or gas detection?
The above wiring information makes me think it should be configured as NRM, and wiring it like a regular 4-wire zone. If I do that, what zone type should I pick in PC Access. Fire Emergency, Gas, or Auxiliary Emergency? I would like to have it dial out if a gas leak is detected, and always be monitored regardless of arming status.
Unfortunately, the information in the installation manual doesn't go into a lot of detail on how to wire up a CO sensor, and what zone to configure it as.
I'm using the System Sensor CO1224T detector, and I have 2 of these daisy chained to each other. 4 wires run to the first sensor, and 6 wires run from the 1st sensor to the 2nd sensor.
The system sensor wiring diagram seems to indicate that the CO sensor has it's own power supervision relay built in.
http://www.systemsensor.com/pdf/I56-3111.pdf
It also says to configure it differently to standard 4-wire smoke alarms.
It should be noted the installation, operation, testing and maintenance of
the CO1224T/CO1224TR is different than System Sensor conventional 4-wire
smoke detectors, such as the i3 Series. Below are specific installation requirements for the CO1224T/CO1224TR:
• Connect to a non-resettable power supply
• Connect to a non-fire zone: Per NFPA 720 section 9.6.7.2 the CO1224T/
CO1224TR shall not be connected to a zone that signals a fire condition
• Per NFPA 720 section 9.6.7, do not connect the CO1224T/CO1224TR on
a zone with other fire or intrusion initiating devices - i.e. do not connect
on the same zone as smoke detectors
• Wiring of the trouble relay is mandatory: Per UL Standard 2075 section
17.1.1 a detector shall send a trouble signal to the control panel upon an
open circuit, a ground fault, sensor removal or sensor end of life
• If wiring one CO1224T/CO1224TR per zone: Use 4 conductors
• If wiring multiple CO1224T/CO1224TR detectors per zone: Use 4 conductors from panel to first CO1224T/CO1224TR, then use 6 conductors
from the second CO1224T/CO1224TR to other detectors on the zone
My Questions.#1 I am connecting to Zone #2. Should the jumper be in the NRM or SMK position
#2 Which wiring diagram do I follow - do I wire it up like a 4 wire smoke on Z1-4 (i.e. only use one of the zone terminals, and the other goes to switch 12V).
#3 Looking at the diagram, is this considered a normally closed circuit which opens on either power fail, or gas detection?
The above wiring information makes me think it should be configured as NRM, and wiring it like a regular 4-wire zone. If I do that, what zone type should I pick in PC Access. Fire Emergency, Gas, or Auxiliary Emergency? I would like to have it dial out if a gas leak is detected, and always be monitored regardless of arming status.