When a “HEATER FAULT” occurs after the first twenty-five (25) seconds of the drying cycle, a “CLEAR/ STOP” will be sent to the Phase 5 Microprocessor Controller (computer), a “FILL” message will be displayed on the Phase 5 Microprocessor Controller’s (computer’s) display, and both the “HEATER FAULT” reset push- button and the “END OF CYCLE" light will flash.

NOTE: If the “HEATER FAULT Reset Push-Button” is pressed any time during the PLC (Programmable Logic Controller) controlled cool down cycle, the machine will come to a stop since the machine is being attended to by a qualified operator.

“HEATER FAULT” occurs during the following conditions:

Front and/or rear or both air flow switches are in the closed position at the start of a drying cycle.

IMPORTANT: At the start of a drying cycle, the tumbler will begin to turn and a few seconds there- after, the “FAN “ signal will be asserted.

IF BOTH AIR FLOW SWITCHES ARE NOT OPEN AT THIS TIME THE

BLOWER WILL NOT START and A “HEATER FAULT” WILL OCCUR.

Both HEATER FAULT Indicators” will flash and the machine will come to a complete halt/stop until the “HEATER FAULT" reset push-button is pressed.

ONE or BOTH BURNERS DO NOT IGNITE

The dryer has two (2) burner boxes. Each burner box has its own Gas Valve, Spark Ignitor/Flame-Probe Assembly, and DSI (Direct Spark Ignition) Module.

DSI (Direct Spark Ignition) Module

When the dryer calls for heat, and ALL dryer safety switches are satisfied, a 24 VAC control signal is supplied to both DSI (Direct Spark Ignition) Modules. The DSI Module L.E.D. (light emitting diode) indicators will light “red” for approximately 1.5-seconds of pre-purge, the L.E.D. indicators will light “green”. Each DSI Module will energize its’respective gas valve and provide an 8-second spark to its’ Spark Ignitor/Flame-Probe Assembly. The gas in both burner boxes should ignite. If ignition does not occur in one or both burners after 8-seconds, the flame will not be sensed by the Spark Ignitor/Flame-Probe Assembly and the DSI Module will go into the “LOCK-OUT” mode lighting the L.E.D. (light emitting diode) indicator(s) “red” continuously. THERE ARE NO IGNITION RETRIES BY THE DSI MODULE. Stop the dryer at this point and restart another drying cycle. It may take several restarts to clear the gas supply piping of air.

NOTE: “HEATER FAULT” will occur during the initial set up of the machine, indicating that the burners are not lighting due to air in the gas line.

GAS PRESSURE

The natural gas pressure supplied to the dryer must be between 6-inches and 12-inches of W.C. (water column) pressure. If the supply pressure is above 12-inches water column than an external regulator must be installed to reduce the gas supply pressure to between 6-inches and 12-inches of water column.

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ADC AD-310 service manual If Both AIR Flow Switches are not Open AT this Time, GAS Pressure
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AD-310 specifications

The ADC AD-310 is a versatile and compact audio digital converter designed to meet the demands of audio professionals and enthusiasts alike. With its advanced technology and user-friendly features, the AD-310 stands out in the crowded marketplace of audio interface solutions.

One of the main features of the ADC AD-310 is its high-resolution audio conversion capabilities. Supporting sample rates up to 192 kHz and resolutions of up to 24 bits, the AD-310 ensures that audio captures are of the highest fidelity, making it ideal for recording, mixing, and mastering tasks. This level of detail is crucial for audio professionals who require precision and clarity in their audio signals.

Another standout characteristic of the ADC AD-310 is its robust connectivity options. It comes equipped with both USB and optical ports, enabling seamless integration with a variety of digital audio workstations (DAWs) and other audio equipment. This flexibility allows users to choose their preferred connection method, enhancing the overall workflow and efficiency during production.

The AD-310 also features advanced analog-to-digital and digital-to-analog converters, which contribute to its impressive dynamic range and low total harmonic distortion (THD). This ensures that the audio output is clean and true to the original signal, making it suitable for both recording and playback applications. Additionally, the unit incorporates real-time monitoring capabilities, allowing users to hear adjustments as they make them, ensuring the perfect mix every time.

For ease of use, the ADC AD-310 is designed with a simple, intuitive interface. Its layout includes clearly labeled controls and LED indicators, allowing users to quickly assess levels and settings at a glance. This design philosophy extends to its compact form factor, making it easy to transport and integrate into any studio setup, whether it be in a professional environment or home studio.

With its combination of high-quality audio processing, flexible connectivity, and user-friendly design, the ADC AD-310 is an excellent choice for anyone looking to elevate their audio production experience. Whether used by professionals or hobbyists, the AD-310 delivers performance and reliability that sets it apart in the audio converter market.
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