AP-542D HONEYWELL

Product Overview 

The Honeywell AP-542D (Ansul Part 433605) is an industrial-grade main circuit board assembly designed for the AUTOPULSE 542D conventional Pre-Action and Deluge Releasing Control Panel. Engineered to manage water-based fire suppression and deluge systems, this assembly provides critical control, signaling, and supervisory monitoring across single or dual hazard environments. It supports up to six Style B (Class B) initiating device circuits (IDCs) and is compatible with advanced conventional smoke detection lines like the System Sensor i3 series. Designed for high reliability in demanding commercial and industrial properties, the AP-542D coordinates automatic suppression sequences, manual release activations, and abort zone parameters seamlessly. 

Key Features

• Core replacement main circuit board assembly for Ansul AUTOPULSE 542D deluge and pre-action panels.
• Controls six programmable Style B (Class B) Initiating Device Circuits (IDCs) for flexible system zones.
• Features four built-in outputs programmable as Notification Appliance Circuits (NACs) or dedicated releasing circuits.
• Delivers 7.0 Amps total of 24 VDC output current to power notification appliances and releasing solenoids.
• Supports dual hazard operation with cross-zone (double-interlock) capabilities for advanced suppression validation.
• Integrates an ANN-Bus connection interface for seamless pairing with remote system annunciators.