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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
airtight seal upon re-installation
Utilizing superior elastomeric materials
allowing field technicians to calibrate the safety limit to specific OEM furnace requirements
This component is specifically matched for Fenwal series 05 ignition controls
For long-term maintenance
System Sensor APA151 Annunciator airtight seal upon re-installationThe System Sensor APA151 is a critical remote annunciator with piezo alert designed for HVAC duct smoke detection systems. Engineered to meet NFPA 90A requirements, this accessory provides both audible and visual notification for 4 wire conventional duct smoke detectors when a system control panel is not present. Operating at 24 VDC (nominal range 16 to 33 VDC), the APA151 features a high visibility red alarm LED and a green power LED to ensure