ADC AD-410 service manual Require any adjustment

d) Sprinkler Digital Temperature Controller

The sprinkler digital temperature controller is a programmable	MAN3488
microprocessor used to monitor temperatures via a Resistive
Temperature Device (RTD).
NOTE: Operating parameters are preset at the factory and should not
require any adjustment.

2. Sprinkler System Operation

NOTE: Refer to the ladder diagram provided with the dryer for specific relay logic.

Master Relay -The coil in this relay must be energized in order to close the contacts needed to supply power to the dryers control system.

Relay 1 - The coil in this relay energizes if the set- point is reached closing Contact 1 and Contact 2. Contact 1 latches Relay 1 on. Contact 2 closes, turning on the sprinkler, the horn, and the reset button light. Relay 1 will remain energized until the reset button is pushed.

Relay 2 - The coil in this relay energizes if the set- point is reached closing Contact 3, de- energizing the Master Relay, and shutting power off to the dryer. Relay 2 will remain energized until the reset button is pushed.

NOTE: The Sprinkler System will remain on until the tumbler (basket) temperature falls below the set-point, and the reset button is manually activated.

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