Mitsubishi PVA-AA42NL & PUZ-AK42NL 42,000 BTU 19.1 SEER2 Multi-Position Air Handler Heat Pump System - R454B - PVAAA42NL/PUZAK42NL
The Mitsubishi PVA-AA42NL indoor air handler combined with the PUZ-AK42NL outdoor unit delivers 42,000 BTU of efficient heating and cooling for single-zone spaces up to approximately 1,750 sq ft. Designed for flexible installation, the multi-position indoor unit supports upflow, downflow, and horizontal orientations, suitable for attics, closets, or mechanical rooms.
Featuring an INVERTER-driven compressor and environmentally friendly R-454B refrigerant, this ENERGY STAR-certified system ensures precise temperature control and energy-efficient operation. The PUZ-AK42NL condenser provides reliable low-ambient heating down to –4 °F and cooling to 0 °F, with Blue Fin corrosion-resistant coating to withstand coastal and harsh environments.
Quiet operation, smart control compatibility, and optional electric heat kits complete this high-capacity ducted heat pump system.
Features
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INVERTER-Driven Compressor: Efficient, responsive heating and cooling modulation
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Multi-Position Air Handler: Supports horizontal, upflow, or downflow installation
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Selectable External Static Pressure: 0.30, 0.50, or 0.80 in.WG
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Low-Ambient Capability: Operates down to 0 °F cooling and –4 °F heating
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Blue Fin Coil Protection: Durable corrosion resistance for coastal environments
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Quiet Operation: Indoor sound levels as low as 34 dB(A)
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Smart Control Ready: Compatible with wired/wireless remotes, third-party thermostats, and Mitsubishi Comfort App (adapter required)
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Optional Electric Heat Kit and ERV/Humidifier Terminals
What Our Experts Think
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42,000 BTU multi-position air handler ideal for single-zone spaces up to ~1,750 sq ft.
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High-efficiency 19.1 SEER2 rating ensures reliable year-round heating and cooling.
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Flexible indoor installation supports upflow, downflow, and horizontal orientations.
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Compact design fits attics, closets, or mechanical rooms without compromising performance.
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Uses eco-friendly R454B refrigerant for sustainable operation.
Q&A
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Q: What size area is suitable for this system?
A: Ideal for single-zone spaces up to ~1,750 sq ft.
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Q: Can it provide both heating and cooling?
A: Yes, it delivers energy-efficient year-round climate control.
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Q: Where can it be installed?
A: Multi-position indoor unit allows versatile placement in tight or flexible spaces.
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Q: What refrigerant does it use?
A: R454B, a low-GWP, environmentally friendly refrigerant.
Maintenance Tips
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Clean or replace filters monthly to maintain airflow and efficiency.
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Schedule annual professional maintenance for refrigerant and system checks.
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Keep outdoor unit free of debris for optimal performance.
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Inspect indoor unit mounting and duct connections periodically for stability.
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Ensure condensate lines remain clear to prevent water damage.
