I have a Ademco Vista 20P (rev 10.23) system with three (3) ESL 429CT smoke detectors (Photoelectric + integrated 135 degrees fixed temp and rate-of-rise heat detector) in the house and three (3) Edwards Systems 284B-PL heat detectors (fixed temp 194 degrees) in the attic/garage. The smoke and heat detectors are now both over 18 years old and I am uncomfortable with them since they are beyond thier recommended life span. I am especially concerned given the fact that I have not been able to trigger the smoke detectors with real smoke (the magnet test does work) while testing the system. I would like to simply swap the smokes and heats with newer compatable versions that would not require any modifications to the panel or current wiring.
It appears a direct replacement for my current smoke detectors would be either the Interlogix 521BXT or the System Sensor 2WT-B.
As far as the heat detectors, it appears my options are simply buying the same model again or the System Sensor 5602.
Are these the best/only choices? Are there others? What would you recommend?
Thanks.