Fire alarm voltage calculator

The HPP-Calc is an interactive graphics tool for determining the voltage parameters of a specific fire alarm’s notification application circuit.

By Consulting Specifying Engineer Staff November 4, 2008

The HPP-Calc—available from Honeywell Power Products —is an interactive graphics tool for determining the voltage parameters of a specific fire alarm’s notification application circuit (NAC). The program, offered by the manufacturer at no charge, evaluates NAC devices and their location on a circuit, along with conductor size and maximum current draw. The tool enables fire alarm system designers to easily optimize circuits easily, with convenient drop-down menus and realistic graphic interface.