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NOTE: The following information is an explanation of the Sensor Activated Fire Extinguishing
(S.A.F.E.) system functionality. This feature is programmed at the factory and affects dryers
that are equipped with the S.A.F.E. system.
K. S.A.F.E. SYSTEM
While the dryer is in an idle state, or 20-seconds after the heat turns off, the Phase 7 dual microprocessor
controller (DMC) computer monitors the S.A.F.E. temperature probe located in the top of the basket (tumbler)
chamber and records the minimum temperature. If the minimum recorded S.A.F.E. probe temperature is greater
than 120°F (48°C) and the Phase 7 DMC (computer) detects a 50° rise in temperature, this
will be the trip point,
and the S.A.F.E. routine will activate.
While a drying cycle is in process and the heat has turned on at least once, the Phase 7 DMC (computer) monitors
the exhaust temperature transducer. If the drying cycle temperature set point is set greater than 160°F (71°C) and
the Phase 7 DMC (computer) detects an exhaust temperature rise 25°F greater than set point, this
will be the trip
point, and the S.A.F.E. routine will activate. If set point is below 160°F (71°C), the trip point will be 185°F
(85°C).
Once the S.A.F.E. routine is activated, the display will read “S.A.F.E. SYSTEM ACTIVATED”, and water will be
injected into the basket (tumbler) chamber. Anytime water is being injected into the basket (tumbler), the basket
(tumbler) drive will turn the load for 1-second every 15-seconds. This process will continue for a minimum of
2 minutes. After 2 minutes have elapsed, the Phase 7 DMC (computer) will check if the temperature remained
above trip point; if so, water will remain on. The Phase 7 DMC (computer) will continue to check if temperature
is above trip point every 30-seconds. If the water has been on for a constant 10 minutes, the water will be turned
off regardless of the temperature, and the display will read “S.A.F.E. SYSTEM WAS ACTIVATED”. If the
temperature has dropped below trip point, the Phase 7 DMC (computer) will turn off the water prior to
10 minutes.