70D40 Fireye CHASSIS

Overview

The Fireye 70D40 is a solid-state burner management control chassis designed to provide ignition and flame failure protection for manually started oil or gas burners. As part of the Fireye D-Series, this 120 VAC chassis serves as a modular flame safeguard control that ensures safe burner operation by integrating with plug-in amplifier modules. It features a built-in safe start check that prevents the burner from starting if a flame signal, whether real or simulated, is detected during the startup sequence.

Features

• Multi-Mode Detection: Supports ultraviolet (UV), self-checking UV, AUTOCHECK infrared (IR), and rectification flame detection methods through interchangeable plug-in amplifier modules.
• Safe Start Check: Automatically performs a component and signal check on every start to prevent operation in the presence of a false flame signal.
• Load Switching: Equipped with three SPDT and one SPNO load switches to manage external loads and starting circuits.
• Reliable Monitoring: Compatible with 72D1R3 and 72DUVS amplifiers for continuous component function checking during the firing cycle.
• Testability: Includes meter test jacks on amplifier modules for easy flame signal readout using a standard DC voltmeter.

Specifications

• Model Number: 70D40
• Supply Voltage: 120 VAC (min 102V, max 132V) at 50/60 Hz
• Flame Failure Response Time (FFRT): 4 seconds maximum (reducible to 1 second with T-suffix amplifier modules)
• Operating Temperature: -40 degree F to 140 degree F (-40 degree C to 60 degree C)
• Shipping Weight: Approximately 3 lbs (1.4 kg)
• Construction: Solid-state modular chassis with cover
• Compatibility: Fits standard Fireye wiring bases and integrates with D-Series sensors and amplifiers

Applications

The 70D40 chassis is primarily used in commercial and industrial combustion systems for the management of manually ignited burners. It is suitable for monitoring flames from various fuel sources, including natural gas, propane, and oil. Common applications include industrial furnaces, boilers, and other process heating equipment where manual startup is required but automatic flame monitoring and safety shutdowns are essential.