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American Dryer Corp.
113345-9
Typical Water Supply
Optional Manual Bypass
Provisions are made in the dryer’s F.S.S. for
the installation of an optional manual
bypass. Depending on the model dryer, the
connections for the manual bypass are
made at the “T” or “four way” fitting located
in the outlet supply side of the water solenoid
valve. The use and connections of this
manual bypass are at the option or discretion
of the owner.
The water connection for the manual bypass
is made to the “T” or “four way” fitting which
has a 3/8” F.P.T. and a coupling must be
used to provide the minimum 1/2” supply
(feed) line.
If the rear area of the dryer, or the water
supply is located in an area where it will be
exposed to cold/freezing temperatures,
provisions must be made to protect these
water lines from freezing.
Warning
If the water in the supply line or water
solenoid valve freezes, the F.S.S.
will be inoperative!!
The manual ball cock shutoff valve must be
located outside of the dryer at a distance from the dryer where
it is easily accessible.
Electrical Requirements ______________
No independent external power source or supply connection
is necessary. The 24 volt power to operate the F.S.S. is
accomplished internally in the dryer (from the dryer controls).
Warning
Electrical power must be provided to the dryer at all
times. If the main electrical power supply to the
dryer is disconnected, the F.S.S. is inoperative!!
F.S.S. Theory Of Operation ____________
While the dryer is in an idle state, or 20-seconds after the
heat turns off, the Phase 7 control monitors the thermistor
probe, located in the top of the basket (tumbler) chamber,
and records the minimum temperature. If the minimum
recorded thermistor probe temperature is greater than 120°
F (48° C) and the control detects a 50° rise in temperature,
this will be the trip point and the F.S.S. routine will activate.
!
!
While a drying cycle is in process and the heat has turned on
at least once, the Phase 7 control monitors the exhaust
temperature transducer. If the drying cycle temperature set
point is set greater than 160° F (71° C) and the control detects
an exhaust temperature rise 25° F greater than set point, this
will be the trip point and the F.S.S. routine will activate. If set
point is below 160° F (71° C), the trip point will be 185° F
(85° C).
Once the F.S.S. routine is activated, the control will display
“F.S.S. ACTIVATED” and water will be injected into the basket
(tumbler) chamber. Any time 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 the 2 minutes have elapsed,
the control will check if the temperature remained above trip
point; if so, the water will remain on. The control will continue
to check if the 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 control will display “F.S.S. WAS ACTIVATED”. If the
temperature has dropped below trip point, the control will
turn off the water prior to 10 minutes.