SERVICE

Problem

Possible Cause

 

 

Grain not moving through columns.

1.Check the dryer for fine material buildup inside the columns.

2.Avoid leaving the dryer columns full for long periods at a time (2-3 days) while not operating the dryer or during rainy weather.

3.Empty the dryer. Keep the dryer clean! Do not allow fine material to gather in the plenum chamber.

4.It may be necessary to open the strike off plates in the affected columns in half inch intervals.

Uneven drying-Some kernels appear brown while others

are under dried.

Uneven heat exiting from dryer columns.

1.Check plenum thermostat temperature setting. Some varieties of grain are more sensitive to higher operating temperatures. It may be necessary to lower the plenum operating temperature to accommodate this.

2.Check for proper burner alignment (side to side). Vibration during shipment may have caused misalignment.

Burner will not fire with fan operating.

1.Burner switch must be on.

2.Check for power to ignition board.

Heater switch light and gas solenoids go on and off erratically-The light blinks on and off while the solenoids "chatter".

1.The blinking light indicates the flame sensor is not detecting flame.

2.The "chattering" solenoids are caused by the loss of flame detection, and the thermostat and Fenwal ignition board trying to reestablish a flame. Check for loose wires on flame sensor; replace or repair wires or sensor.

Burner will not fire-No gas pressure with fan operating at least 15 seconds (gas supply or fan heater malfunction).

1.Check gas supply. Also, check gas filter and gas line for possible obstruction or closed valves. Refill tank; replace or repair parts, as required.

2.Inspect gas solenoid valves (including liquid valve on LP units) for defective coils or improper wiring. Replace valve or coil if valve will not open with proper voltage applied (115 volts).

3.Check for proper voltage. 115 volts across L1 and L2 incoming voltage to the Fenwal Ignition Board, and 115 volts outgoing across V1 and V2 to the solenoids.

Burner will not fire-But gauge shows gas pressure.

1.Fenwal Ignition Board: Check board for spark by removing ignition wire from board, and holding aninsu- lated screwdriver against the output terminal and 1/4" away from the control box casing. There should be a strong spark. Check board wire connections. Replace the Fenwal board, if necessary.

2.Ignitor: Check that the ignitor is properly gapped to 1/8" and that it has a strong spark. Inspect the porcelain and electrodes for damage or cracking. Replace or clean if necessary.

Burner maintains desired drying temperature-but cycles

from hi-fire to off (without going to lo-fire).

1.Make sure the low flow control valve is not completely closed. Valve must be adjusted open to provide the proper lo-fire gas pressure listed in this manual.

2.Check lo-fire solenoid valve for proper operation.

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Airstream PNEG-339 service manual Service
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PNEG-339 specifications

The Airstream PNEG-339 is a highly regarded model in the realm of agricultural storage and handling equipment, specifically designed for grain management. Its innovative features and robust technologies make it a valuable asset for farmers and grain handlers seeking efficiency and reliability.

One of the primary characteristics of the PNEG-339 is its seamless construction. Built with high-quality materials, the unit is engineered to withstand the rigors of outdoor environments while providing durable protection for stored grains. The design minimizes maintenance requirements, ensuring that users can focus on their core agricultural operations without the distraction of frequent repairs.

The PNEG-339 is equipped with advanced aeration systems that enhance the preservation of grain quality. This technology allows for optimal airflow circulation, reducing moisture levels and minimizing the risk of spoilage. By maintaining the ideal conditions for grain storage, farmers can ensure better yields and profitability.

Another notable feature of the PNEG-339 is its scalability. This model can easily be integrated into existing grain handling systems, accommodating various storage capacities. Whether managing small-scale operations or large agricultural enterprises, the PNEG-339 offers flexibility in design and implementation, making it suitable for diverse agricultural needs.

The unit also boasts user-friendly controls and monitoring systems, allowing operators to manage grain conditions efficiently. Real-time data and automated alerts assist in maintaining optimal storage conditions, thus reducing labor costs and enhancing operational efficiency. As a result, farmers can make informed decisions quickly and effectively.

Additionally, the PNEG-339 incorporates energy-efficient technologies that contribute to sustainability in agriculture. By utilizing energy-saving components, this model not only lowers operational costs but also aligns with the growing emphasis on environmentally responsible farming practices.

Overall, the Airstream PNEG-339 stands out as a top-tier choice for grain storage and handling. With its durable construction, advanced aeration systems, scalability, user-friendly controls, and energy efficiency, it meets the demands of modern agricultural operations. Its design and functionality reflect a commitment to quality and performance, making it an essential tool for those in the agricultural sector aiming to enhance their productivity and maintain the integrity of their grain stores.
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