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Detects the sudden temperature drop from opening the dome and turns the fan off temporarily to avoid over-stoking the fire
easy-to-assemble
This set also includes a free #2 Phillips bit
Solid brass cylinder
helping eliminate unwanted airflow throughout a home
Tell Stainless Steel Hall & Closet Door Knob XL nest accessory package Detects the sudden temperature drop(KC2375). Heavy duty commercial passage ball knob. Satin stainless steel (US32D). Performance: Complies with ANSI A156. 2, Series 4000, Grade 2, (400,000 cycles), UL listed for 3 hour fire door. Door range: 1 3 8" to 1 3 4". Backset: 2 3 4" standard. Strike: T strike (1 1 8" x 2 3 4") standard. Cylindrical, steel coated with zinc dichromate (corrosion resistance). Latchbolt operated by knob on either side at all times.
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