The defrost control board is designed for use in HVACR (Heating, Ventilation, Air Conditioning, and Refrigeration) applications, such as the ANZ130181AA and APD1424070M41AA models (additional compatible models are shown in the pictures).

The available part numbers for this product include PCBDM133S, PCBDM133, PCBDM160S, and PCBDM160.

The primary function of this defrost control board is to regulate the commercial air conditioning system's defrost cycle. It senses when frost has accumulated on the evaporator coil and initiates the defrost process accordingly.

The defrost cycle has a duration of 12 minutes and offers two modes: DELAY and NORMAL. To ensure reliable performance, the board has been equipped with upgraded high-precision resistors, large-capacity triodes, and long-life relays.

Before installing and operating the defrost control board, it is crucial to perform field testing and troubleshooting to ensure proper functionality. Once the testing is complete, the installation and operation should be carried out in the proper sequence.

The defrost control board's versatility allows it to be compatible with a wide range of HVACR applications, making it a valuable component for commercial air conditioning systems.

The PCBDM133S, PCBDM133, PCBDM160S, and PCBDM160 part numbers provide options to meet the specific requirements of different HVACR systems, ensuring a suitable match for various configurations.

The defrost control board's ability to sense frost formation on the evaporator coil and initiate the defrost cycle is a crucial feature for maintaining the efficiency and performance of commercial air conditioning systems.

By incorporating high-precision resistors, large-capacity triodes, and long-life relays, the defrost control board is designed to deliver reliable and long-lasting performance, minimizing the need for frequent maintenance or replacements.

The importance of field testing and troubleshooting before installation and operation cannot be overstated, as it helps ensure the proper functioning of the defrost control board and the overall HVACR system.

In summary, this defrost control board is a versatile and essential component for commercial air conditioning systems, offering reliable operation, efficient defrost cycles, and compatibility with a wide range of HVACR applications.

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