Description

Kentec Sigma XT UL Releasing Unit Installation Manual

The Sigma XT UL Releasing Unit Installation Manual covers the UL-listed variant of the Kentec Sigma XT extinguishant panel, designed for installations under North American UL listing requirements rather than EN 12094-1.

What the manual covers

• UL-listed cabinet mounting
• NFPA-compliant power and battery wiring
• Detection initiating device circuits per NFPA 12 / NFPA 2001
• Manual release station wiring
• Abort station wiring and timing per US listing
• Pre-discharge audible/visual notification appliance wiring
• Discharge solenoid output and confirmation feedback
• Lockout for maintenance
• UL listing compliance verification

Who should use this manual

This manual is for fire suppression engineers working on US-jurisdiction installations requiring UL-listed extinguishant control. The standard Sigma XT range is EN 12094-1 certified for European installations; the UL variant is specifically for North America.

UL vs EN12094-1 differences

The two variants share the same core platform but differ in compliance documentation, installation requirements (NFPA vs EN), and labelling. The wrong variant for the installation jurisdiction will not pass authority sign-off, so confirm jurisdiction before specifying.

Related Sigma manuals

For EN-jurisdiction installations, see the standard Sigma XT Operation Manual. For the wider library, see the extinguishant section.

Fire suppression training

BH Courses’ fire suppression training programme covers EN-jurisdiction Sigma XT commissioning. North American installers should pursue NFPA-aligned training routes locally.