CONTROLS

Operating sequence

Cooling — When the system thermostat calls for cooling, 24 V is supplied to the “Y” and “G” terminals of the thermostat. This completes the circuit to the contactor coil (C) and indoor fan board. The normally open contacts of C close and complete the circuit to compressor motor (COMP) and to outdoor (condenser) fan motor (OFM). Both motors start instantly. The IFM starts according to the selection pin set-up on the Easy Select Board.

On the loss of the thermostat call for cooling, 24 V is removed from both the “Y” and “G” terminals (provided the fan switch is in the “AUTO” position) de-energizing the compressor contactor and opening the contacts supplying power to compressor/OFM. After a preselected delay, the IFM shuts off. If the thermostat fan selector switch is in the “ON” position, the IFM will run continuously at speed selected on Easy Select Board

50XP

Heating — If accessory electric heaters are installed, on a call for heat, circuit R-W is made through the thermostat contacts. Circuit R-G is made which energizes the IFM. If the heaters are staged, then the thermostat closes a second set of contacts (W2) when second stage is required. When thermostat is satisfied, contacts open, deenergizing the heater relay. After a preselected delay, the IFM shuts off. If the thermostat fan selector switch is in the “ON” position, the IFM will run continuously at speed selected on Easy Select Board.

NOTE: On units with a Time Guard® II device: Once the compressor has started and then stopped, it cannot be restarted again until 5 minutes have elapsed.

The indoor blower operation with a call for fan operation (G) in cooling mode will perform by the on/off delay profile selected at start up on the Easy Select Board.

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Carrier 50XP manual Controls, Operating sequence
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50XP specifications

The Carrier 50XP is a high-efficiency air conditioning unit designed for residential and light commercial applications. It is known for its reliability, advanced features, and energy efficiency, making it a popular choice among homeowners and contractors alike. This unit integrates state-of-the-art technology to provide optimal indoor comfort regardless of external weather conditions.

One of the main features of the Carrier 50XP is its efficient cooling and heating capability. The unit utilizes a scroll compressor, which is renowned for its durability and ability to deliver consistent performance. This type of compressor operates quietly and efficiently, contributing to lower energy costs while providing substantial cooling output.

The 50XP model is equipped with a multi-speed blower motor, which allows for precise control over airflow delivery. This feature ensures that air is distributed evenly throughout the space, enhancing comfort levels. Additionally, the unit supports variable speed operation, which further optimizes energy consumption while maintaining desired indoor temperatures.

Another significant characteristic of the Carrier 50XP is its advanced refrigerant technology. The unit is designed to use environmentally friendly refrigerants, aligning with modern standards for sustainability and reduced environmental impact. This eco-conscious approach not only complies with regulatory guidelines but also promotes higher energy efficiency across its operational lifespan.

The 50XP also features advanced communication capabilities, allowing it to integrate seamlessly with Carrier's smart home technology. This connectivity empowers users to remotely control their HVAC system, monitor energy usage, and receive maintenance alerts. Such smart technology enhances convenience and efficiency, enabling users to manage their indoor climate more effectively.

Noise reduction is a critical consideration in residential and light commercial units, and the Carrier 50XP excels in this aspect. With an insulated chassis and specially designed fan blade, the unit minimizes operational noise, ensuring a quiet environment during its operation.

In conclusion, the Carrier 50XP is a powerful and efficient air conditioning unit that showcases the latest advancements in HVAC technology. Its reliable performance, energy efficiency, and innovative features make it an ideal option for those looking to improve their indoor comfort while keeping energy costs low. With sustainable refrigerant options and smart home integration, the 50XP represents Carrier's commitment to quality, efficiency, and environmental responsibility.
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