• Indoor Unit - Only the Air Handler is included in this. You need to also purchase a compatible outdoor section in order to have a complete working system
• Wireless Remote Control
• Wi-Fi Module w/ Free App
• 25 Ft. Installation Kit
• Flare Connection Leak Guard Sealer
• Installation Manual
• User’s Manual
• Manufacturer Warranty

• Technical Brochure
• Installation and User's Manual

• High Efficiency: With an impressive 21.5 SEER rating, this air handler is designed to deliver exceptional energy efficiency, helping you save on energy costs while maintaining consistent cooling and heating throughout the year.
• Powerful 18,000 BTU Capacity: Perfect for medium to large-sized rooms, this air handler provides optimal cooling and heating performance to ensure your indoor comfort, regardless of the season.
• Quiet Operation: The Diamante Ultra series is engineered with noise-reducing technology, allowing it to operate quietly in your living space for a more peaceful environment.
• Advanced Filtration: Equipped with a high-efficiency air filter, the unit helps remove dust, allergens, and other particles from the air, improving indoor air quality for a healthier living environment.
• Durability & Reliability: Built with durable materials, the air handler is designed for long-lasting performance, offering reliable operation even under heavy use.
• Flexible Installation: Compatible with a variety of Pioneer mini-split systems, this air handler is ideal for use in both residential and light commercial applications. Its design allows for easy installation and integration with your existing HVAC system.
• Sleek, Modern Design: The air handler features a contemporary, sleek design that blends seamlessly with modern home décor, ensuring it’s both functional and aesthetically pleasing.

Q: What is the Pioneer 18,000 BTU Diamante Ultra 21.5 SEER Air Handler (WT018GLFI22HLD-25)?
A: The Pioneer 18,000 BTU Diamante Ultra Air Handler is an advanced indoor unit designed to work with Pioneer mini-split systems. With a high efficiency rating of 21.5 SEER (Seasonal Energy Efficiency Ratio), this air handler provides reliable and energy-efficient cooling and heating for spaces that need a 1.5-ton capacity system.

Q: What is SEER, and why is 21.5 SEER important?
A: SEER is a measure of an air conditioning unit's energy efficiency. A higher SEER value indicates a more energy-efficient system. With a 21.5 SEER rating, the Pioneer Diamante Ultra Air Handler offers excellent energy savings while still providing optimal cooling and heating performance, making it a great choice for reducing energy consumption over time.

Q: How is the Pioneer Diamante Ultra Air Handler designed for efficiency?
A: This air handler is built with advanced inverter technology, which adjusts the compressor speed based on cooling or heating demand, maintaining a more consistent indoor temperature and consuming less energy. The high SEER rating reflects the unit’s efficiency in converting energy into cooling or heating power.

Q: Is this air handler suitable for my space?
A: The 18,000 BTU capacity is typically appropriate for spaces around 750 to 1,000 square feet, depending on factors like insulation and room layout. It’s recommended to check the cooling/heating load requirements for your specific space to ensure compatibility.

Q: What is included with the Pioneer 18,000 BTU Diamante Ultra Air Handler?
A: The air handler typically comes with the unit itself, installation instructions, and remote control. It may require a compatible outdoor unit and additional installation accessories such as a lineset, which are sold separately.

Q: How does the Pioneer Diamante Ultra Air Handler perform in terms of comfort?
A: With its inverter-driven compressor, the air handler provides smooth, consistent airflow and temperature control, offering superior comfort. The system adjusts to the exact cooling or heating needs of the space, maintaining a comfortable environment while avoiding temperature fluctuations.

Q: Can I install the Pioneer Diamante Ultra Air Handler myself?
A: Installing a mini-split system requires knowledge of refrigeration and electrical systems. While the air handler comes with installation instructions, it is recommended that a certified HVAC technician installs the unit to ensure it operates at its best and adheres to local building codes.

• Clean the Air Filters: Regularly clean or replace the air filters to ensure optimal airflow and air quality. Clogged filters reduce efficiency and can cause strain on the system. Clean them monthly or as needed based on usage.
• Inspect and Clean the Coils: Periodically check both the evaporator and condenser coils for dirt and debris buildup. Clean the coils gently using a soft brush or coil cleaner to maintain efficient heat exchange and prevent system overload.
• Check for Leaks: Inspect the air handler and refrigerant lines for any signs of leaks. Leaking refrigerant can lead to reduced cooling capacity and inefficient operation. Contact a professional technician if you notice any signs of leakage.
• Maintain the Condensate Drain: Ensure the condensate drain line is clear and free of obstructions. Clogs can lead to water damage or the growth of mold and bacteria. Flush the drain with water or use a wet/dry vacuum to clear any blockages.
• Inspect Insulation: Check the insulation on the refrigerant lines and air handler unit for wear and damage. Proper insulation is key for energy efficiency, so replace any damaged insulation to avoid energy loss and moisture buildup.
• Ensure Proper Ventilation: Make sure the air handler is installed in a well-ventilated space with adequate airflow. Poor ventilation can reduce the system's efficiency and lead to overheating or damage.
• Schedule Professional Servicing: Have the system professionally serviced at least once a year. A technician can check refrigerant levels, inspect the system’s components, and perform a deep clean to keep the unit running efficiently.
• Monitor System Performance: Pay attention to any unusual noises, reduced airflow, or temperature fluctuations. If the system isn't performing as expected, have it inspected and repaired promptly to prevent further damage.