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SECTION VIII
OPTIONAL SPRINKLER SYSTEM COMPONENTS
OPTIONAL SPRINKLER CIRCUIT COMPONENTS
AUTO “EMERGENCY STOP” (E-Stop) RELAY
This device, located in the Front Right Electrical Enclosure, supplies the main control voltage to the dryer.
The AD-410’s Sprinkler Circuit supplies or removes 120 VAC to the coil of this relay for the “EMERGENCY
STOP” (E-Stop) power disconnect control.
TEMPERATURE CONTROLLER
This device is located in the Front Left Electrical Enclosure and monitors the Sprinkler Circuit temperature. Its
operating functions are preset at the factory and should not require any adjustment.
RTD (Resistive Temperature Device) TEMPERATURE PROBE
This device is a high temperature 100 Ohm (100 Ω) RTD (Resistive Temperature Device) Probe and is located on
the upper left hand side of the tumbler (basket).
PNEUMATIC VALVE
This is a Dual Pneumatic 110 VAC Control Valve and is located in the lower rear base section of the dryer. Power
to turn “ON” the Pneumatic Valve is supplied from the Sprinkler Control Circuit. Power to turn “OFF” the
sprinkler is supplied from a manual reset button located on the right front control door.
SPRINKLER VALVE
This valve controls the flow of the sprinkler water. It is air actuated and requires air pressure to turn “ON” or
“OFF.”
NOTE THAT THERE IS A “RED” INDICATING PISTON AT THE REAR OF THIS SPRINKLER VALVE.
The piston indicates the current state of the valve; when the piston is “IN” the valve is “CLOSED,” when the
piston is “OUT” the valve is “OPEN.”
ALARM HORN
This component is an audible device to indicate that the Sprinkler System has tripped and that water is flowing
into the tumbler (basket). The Alarm Horn will reset when the Sprinkler System is reset.