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  1. Most fire doors are fail safe, if for some reason...

    Most fire doors are fail safe, if for some reason the door isn't normally powered then supervising the power might be a good idea but it isn't required by NFPA 72.
  2. Thread: WF Switch

    by ryant35
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    There isn't anything to control, just monitor. ...

    There isn't anything to control, just monitor. Unless you are activating a bell, but that is usually done with 120VAC through the 2nd switch in the waterflow.
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    That was our first thought.

    That was our first thought.
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    Open Wiring Fire Alarm - Box Connectors

    We have a fire alarm system with 50% of the wire pulled and boxes installed. It is an open wire system, FPL cable pulled into metal boxes. We are using standard non-metallic twin-screw cable clamp...
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    Most people don't care for them, which is one of...

    Most people don't care for them, which is one of the reasons I no longer work there. But with the full Simplex product line available to Autocall dealers you have some more options for who installs...
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    Also its no longer proprietary, new Autocall is...

    Also its no longer proprietary, new Autocall is compatible with everything Simplex except for smoke detectors. I left Simplex for an Autocall dealer and we are fixing all the service issues...
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    Simplex addressable notification is great for the...

    Simplex addressable notification is great for the following features:

    - Self test, all notification appliances can be programmed to all activate once in the middle of the night and report back to...
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    There isn't. However there is a section in the...

    There isn't. However there is a section in the NFPA handbook that discusses the higher starting voltage of the Simplex addressable notification (not by name) and to follow the manufacturer's...
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    Fire Tech has prep classes for NICET levels 1-3...

    Fire Tech has prep classes for NICET levels 1-3
    https://firetech.com/fire-alarm/

    The current NICET tests include a decent amount of OSHA safety questions and the Fire Tech prep includes...
  10. I don't believe so, since the damper circuits...

    I don't believe so, since the damper circuits should be wired fail-safe the area protected by the dampers would still be protected if the circuit was off.
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    As mentioned above an explosion proof enclosure...

    As mentioned above an explosion proof enclosure is your only option since the relays are required to be within 3' of the circuit you are controlling.

    Is the elevator controller explosion proof...
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    The occupancy rating for a parking garage doesn't...

    The occupancy rating for a parking garage doesn't require a fire alarm system per IBC.
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    Typically a DACT communicates with the FACP via...

    Typically a DACT communicates with the FACP via relays, alarm, trouble, & supervisory. Unless the FACP & DACT have a compatible method of communication like an annunciator bus or RS-232.
    This would...
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    Global shutdown is typically required in a case...

    Global shutdown is typically required in a case by case basis. For example: Los Angeles City Fire Department requires global shutdown for high riser buildings for all fans that are not part of a...
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    The SK4 has 3 on board relays, alarm, trouble &...

    The SK4 has 3 on board relays, alarm, trouble & supervisory for connection to a dialer.

    Or you could add a 4XZMF Zone Relay Module.

    See the attached screenshots from the SK4 manual.
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    And yes the isolation relay needs a 24VDC power...

    And yes the isolation relay needs a 24VDC power source that you switch with the addressable relay. You are going to want to use the closed relay and have the isolation relay normally energized so it...
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    The non-addressable relay is an isolation relay,...

    The non-addressable relay is an isolation relay, PAM-2 or MR-101/C relay that separates the 120VAC that powers the smoke/fire dampers from the addressable fire alarm SLC loop.
    Most addressable...
  18. Thread: NAC & IDC ckts

    by ryant35
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    There isn't anything in the code that says they...

    There isn't anything in the code that says they have to be separate. Your limitation will be per manufacturer, some required shielded wire if they are run together, due to noise as mentioned above....
  19. Thread: FA Power

    by ryant35
    Replies
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    Most addressable devices receive their power from...

    Most addressable devices receive their power from the SLC loop. Some manufacturers require that duct smokes or beam smokes require 24VDC power from the panel to operate.

    Most addressable relay...
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    To avoid conflicting parts you should pick a...

    To avoid conflicting parts you should pick a brand and swap everything out. I don't think you have to be a dealer to download the Fire-Lite programmer software so that is probably your best be to buy...
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    They are not the same, I didn't realize the pull...

    They are not the same, I didn't realize the pull station was addressable. Either change out all the addressable devices or go with Notifier.
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    You call also go with the Firelite MS-9050UD...

    You call also go with the Firelite MS-9050UD addressable panel that is probably easier to buy and program than a Notifier.
  23. Thread: Shutdown

    by ryant35
    Replies
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    924

    The code this is pulled from talks about supply...

    The code this is pulled from talks about supply air over 2,000 cfm. I would imagine direct exhaust would be exhaust fans that do not have any smoke/fire dampers in their ducts.

    In my experience,...
  24. Thread: LED- Remote

    by ryant35
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    737

    Usually on the ceiling below the duct smoke. I've...

    Usually on the ceiling below the duct smoke. I've seen them on walls and columns as well. Mostly a preference.

    Run 1 pair of 2#18 between, FPL or FPLP depending on your ceiling.
  25. Thread: Smoke Relocate

    by ryant35
    Replies
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    A Miniplex Transponder can have an annunciator....

    A Miniplex Transponder can have an annunciator. Since they are modular you can add power supplies, amplifiers, and SLC loops in them.
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