Fenwal 12-E27121-020-04 Mounting Head 322838-752 backlit display provides clear visibility

backlit display provides clear visibility in low-light utility spaces

connect your line voltage to the identified terminals according to the internal wiring diagram

it is designed for use with Lennox rooftop units within an L Connection network

the BM-8814 regulates gas valve control and flame sensing with professional-grade reliability

Advanced Fault Management: Integrated logic for superior system monitoring and rapid response to localized electrical faults

Fenwal 12-E27121-020-04 Mounting Head 322838-752 backlit display provides clear visibilityThe Fenwal 12 E27121 020 04 Mounting Head is a high precision Detect A Fire thermal detector engineered for fire suppression release and overheat alarm signaling. Designed with rate compensation technology, this unit accurately monitors ambient temperature without the lag inherent in standard fixed temperature sensors or the false positive risks of rate of rise detectors. This vertical mount model features a 300 series stainless steel shell and hex