Menu
0
0

Your Cart is Empty

Add description, images, menus and links to your mega menu

A column with no settings can be used as a spacer

Link to your collections, sales and even external links

Add up to five columns

  • Add description, images, menus and links to your mega menu

  • A column with no settings can be used as a spacer

  • Link to your collections, sales and even external links

  • Add up to five columns

    • Home  / Product Manuals & Documentation
    Previous  / Next

    NAPCO FireWolf FW-4 / FW-2 Photoelectric Smoke Detectors — Installation & Wiring Instructions

    August 31, 2026 2 min read

    Installation and wiring instructions for the NAPCO FireWolf™ FW-4 and FW-2 2-wire photoelectric smoke detectors, including wiring diagrams and cleaning/maintenance procedures.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Quick reference guide for the NAPCO FireWolf™ FW-4 and FW-2 photoelectric smoke detectors. This manual is fully diagram-based (wiring diagrams and exploded-view illustrations); the images below and the full downloadable PDF cover complete installation, wiring, and cleaning procedures.

    Overview

    The FireWolf FW-4 and FW-2 are 2-wire photoelectric smoke detectors designed for compatibility with UL Listed control panels, including NAPCO GEM-P3200, GEM-P9600, and Express XP600 series panels. Both models operate on 8-35VDC and mount to standard 3" or 4" octagon boxes using the included trim ring.

    Wiring & Installation

    FireWolf FW-4 and FW-2 specifications table and wiring diagrams showing series connection to a UL Listed control panel
    FW-4/FW-2 specifications, box mounting sizes, and wiring diagrams for series connection to a control panel (12VDC or 24VDC power options, end-of-line device/relay connections)

    Caution: Wiring must meet supervision requirements and current-limiting specifications per the control panel manufacturer's installation instructions.

    Mounting, Testing & Service

    FireWolf detector mounting diagram, magnet test placement, cover removal technique, and exploded parts view
    Mounting the detector head onto the trim ring, magnet go/no-go test placement, cover removal technique, and exploded-view parts diagram

    Installation Steps (Summary)

    1. Mount the trim ring to a 3" or 4" octagon box per the box mounting table.
    2. Wire the detector base in series with other detectors, connecting to the control panel per the polarity (+/-) shown in the wiring diagram.
    3. Align the detector head with the trim ring alignment marks and rotate to lock in place, securing with the tamper set screw.
    4. Test using the go/no-go magnet over the "TEST" label (Diagram 2A).

    Cleaning & Maintenance

    1. To remove the cover for cleaning, use two screwdrivers under the tabs as shown in Diagram 2B.
    2. Clean the sensing chamber, photodiode, and IR LED area using denatured alcohol and a soft brush.
    3. Reassemble by aligning the cover tabs and catches, then reattach the outer cover.

    Compatible Control Panels (FW-2)

    GEM-P3200, GEM-P9600, NAPCO Express XP600, and other UL Listed compatible panels — see the full wiring diagram for the complete compatibility list.