Gamewell-FCI ATD-L3H-IV High Temperature Heat Detector

The Gamewell-FCI ATD-L3H-IV is a commercial high-temperature heat detector designed for compatible Gamewell-FCI addressable fire alarm systems. It provides 190°F (88°C) fixed-temperature thermal detection for environments where elevated ambient temperatures make standard-temperature heat detectors unsuitable.

The detector features an ivory housing, rotary decimal addressing, dual bi-color LEDs, and compatibility with Gamewell-FCI Velociti® and CLIP® signaling circuits. Its plug-in design simplifies installation, inspection, testing, and replacement. This product is intended exclusively for commercial fire alarm installations.

Product Functions

• Detects high-temperature fire conditions
• Provides 190°F (88°C) fixed-temperature sensing
• Reports alarm conditions to the fire alarm control panel
• Continuously monitors ambient temperature
• Supports individual device identification
• Provides continuous SLC supervision
• Displays polling and alarm status through dual LEDs
• Supports magnetic functional testing

Electrical & System Information

The ATD-L3H-IV operates on compatible Gamewell-FCI addressable Signaling Line Circuits and communicates detector status directly to the fire alarm control panel. It supports both Velociti® and CLIP® communication protocols, making it suitable for selected legacy and current Gamewell-FCI installations.

Rotary decimal switches provide local device addressing, while dual LEDs flash during normal polling and illuminate steadily during an alarm condition. The detector occupies one address on the signaling circuit and receives operating power through its compatible detector base.

Features

• Commercial high-temperature heat detector
• 190°F fixed-temperature sensing
• Ivory housing
• Velociti® and CLIP® communication
• Rotary decimal addressing
• Dual bi-color status LEDs
• 360-degree LED visibility
• Built-in magnetic test switch
• Plug-in detector head
• Low-profile construction
• Low standby current
• Noise-resistant communication
• Optional relay, isolator, and sounder bases

Mounting & Design

The ATD-L3H-IV installs on a compatible Gamewell-FCI detector base using a twist-lock plug-in design. This configuration allows the detector head to be removed for testing, inspection, or replacement without disturbing the field wiring connected to the base.

Depending on the selected base, the detector can be mounted to standard square, octagonal, or single-gang electrical boxes. Its ivory finish is suitable for matching existing legacy devices and building interiors.

Protection & Applications

Suitable for:

• Boiler Rooms
• Mechanical Rooms
• Utility Rooms
• Manufacturing Facilities
• Industrial Plants
• Warehouses
• Electrical Equipment Rooms
• Commercial Kitchens
• High Ambient Temperature Areas

Compatibility

Compatible with:

• Gamewell-FCI Addressable Fire Alarm Control Panels
• Gamewell-FCI E3 Series Systems
• Gamewell-FCI S3 Series Systems
• Gamewell-FCI GWF-7075 Control Panel
• Velociti® Signaling Line Circuits
• CLIP® Signaling Line Circuits
• B501 Detector Base
• B300-6 Detector Base
• B224RB Relay Base
• B224BI Isolator Base
• B200S Sounder Base
• B200SR Sounder Relay Base
• RA100Z Remote LED Annunciator

Always verify compatibility with the installed Gamewell-FCI fire alarm control panel, detector base, SLC protocol, firmware version, and system programming before installation.

Technical Specifications

Manufacturer: Gamewell-FCI

Parent Company: Honeywell

Model: ATD-L3H-IV

Series: Velociti Series 3

Product Type: High-Temperature Heat Detector

Detection Method: Fixed-Temperature Thermistor

Temperature Rating: 190°F (88°C)

Communication Protocol: Velociti® and CLIP®

Operating Voltage: 15–32 VDC Peak

Typical Standby Current: Approximately 200 µA at 24 VDC

Typical Communication Current: Approximately 300 µA at 24 VDC

Maximum LED Current: 6.5 mA at 24 VDC

Addressing: Rotary Decimal Switches

Address Range: 01–159, Panel Dependent

Status Indicators: Dual Bi-Color LEDs

Testing: Built-In Magnetic Test Switch

Operating Temperature: –4°F to 150°F (–20°C to 66°C)

Operating Humidity: 10%–93% RH Non-Condensing

Listed Spacing: Up to 50 ft. Center-to-Center, Application Dependent

Housing Color: Ivory

Mounting: Compatible Gamewell-FCI Detector Base Required

Application: Indoor Commercial Fire Alarm Systems

Listings: UL Listed, FM Approved, and additional agency approvals as applicable. Verify the detector label, approved control panel documentation, and local project requirements before installation.

Applications

The Gamewell-FCI ATD-L3H-IV is designed for commercial fire alarm systems requiring dependable heat detection in areas with elevated normal operating temperatures. Typical applications include boiler rooms, mechanical equipment spaces, industrial facilities, manufacturing plants, warehouses, commercial kitchens, electrical rooms, utility areas, and other commercial occupancies using compatible Gamewell-FCI addressable fire alarm systems.

ATD-L3H-IV