ADC AD-310 Service Manual
Also see for AD-310: Installation manual
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Contents
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5 2E. SPRINKLER SYSTEM DESCRIPTIONThe sprinkler system is monitored by a microprocessor based temperature controller as a designated "FAIL-SAFE." The microprocessor circuit must have power in order to engage main power to the dryer. Whencycling the dryer, if the temperature at the Resistive Temperature Device (RTD) reaches 575º F, one (1) set ofcontact in the controller will open, disabling the power (electric supply) to the dryer. Another set of contacts willclose, sounding the alarm and turning on the sprinkler.NOTE: The sprinkler as well as the alarm will remain on until the "amber" colored sprinkler reset buttonis pressed and the temperature in the tumbler (basket) falls below 575º F (301.6 º C).1. Description Of Componentsb) Sprinkler ValveThe sprinkler valve is a 2-way , air piloted, normally closed valve.With pilot air pressure applied, the valve opens allowing water toflow. MAN3187a) Resistive Temperature Device (RTD)The RTD is located above the tumbler (basket). The probe is a100 Ω (ohm) platinum RTD. As the temperature increases ordecreases the resistance value corresponds to the ambienttemperature (i.e., 100 Ω = 32º F / 0º C ... 109 Ω = 75º F / 24º C).MAN3479c) Sprinkler Solenoid ValveThe sprinkler solenoid valve is a 3-way/2-position solenoid valvethat is used to supply pilot air to the sprinkler valve. |
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