851PH TYCO

851PH TYCO Addressable Optical Smoke & Heat Detector

The 851PH TYCO (Model / Part No: 851PH, Marine Order No: 516.850.005) is a high-performance addressable optical smoke and heat detector designed by Tyco Safety Products (Johnson Controls) for marine vessel fire detection and industrial safety systems. Engineered to combine optical smoke sensing with heat detection, the 851PH TYCO provides rapid fire warning response while significantly reducing false alarms in demanding environments.

Equipped with advanced multi-sensor technology, the 851PH TYCO continuously evaluates optical smoke density and thermal ambient conditions, communicating directly with Tyco MX fire alarm control panels. Mounted on standard Tyco bases, it provides essential fire safeguard coverage across ship accommodation spaces, engine control rooms, commercial facilities, and complex industrial installations.

Key Features of the 851PH TYCO

• Dual Multi-Sensor Detection: Combines optical smoke and thermal heat sensing for early detection of slow smoldering fires and rapid thermal events.

• Low False-Alarm Susceptibility: Advanced algorithms analyze both smoke density and temperature rise to eliminate nuisance alarms.

• High-Visibility LED Status: Features an integral 360° red LED indicator for quick alarm state identification during emergencies.

• Marine & Industrial Approvals: Fully certified under MED (Marine Equipment Directive), DNV, ABS, and Lloyd’s Register for shipboard installation.

• Addressable MX Protocol: Seamlessly communicates precise point address and analog values to Tyco MX fire control panels.

• Flexible Base Compatibility: Fits standard Tyco 4B, 4B-C, and 5B detector bases for fast twist-lock installation and servicing.

Primary Applications

• Marine Vessel Fire Protection: Fire and heat detection in ship cabins, corridors, engine control rooms, wheelhouses, and accommodation decks.

• Industrial Facilities: Environmental monitoring in control rooms, electrical switchgear rooms, processing areas, and equipment enclosures.

• Commercial Buildings: Multi-criteria smoke and heat monitoring in hotels, office spaces, hospitals, and educational institutions.

Technical Specifications

Package Contents

• 1 × 851PH TYCO Addressable Smoke & Heat Detector Head Unit

• Installation & Wiring Leaflet