Mitsubishi PCA-AK42NL & PUZ-AK42NL 42,000 BTU 20.4 SEER2 Ceiling Suspended Heat Pump System - R454B

Mitsubishi PCA‑AK42NL & PUZ‑AH42NL: 42,000 BTU Ceiling-Suspended Mini Split Heat Pump System

The Mitsubishi PCA‑AK42NL indoor unit paired with the PUZ‑AH42NL outdoor condenser delivers efficient 42,000 BTU cooling and reliable heating with inverter-driven performance. Designed for single-zone ceiling-suspended applications, this mini-split system provides quiet, dependable comfort for spaces up to approximately 1,750 sq ft. It operates with low-GWP R‑454B refrigerant and features durable construction for long-lasting reliability.

General Information

• System Type: Ceiling-suspended ductless air handler + single-zone heat pump condenser

• Models: Indoor – PCA‑AK42NL | Outdoor – PUZ‑AH42NL

• Capacities: 42,000 BTU Cooling | up to 49,400 BTU Heating

• Room Size: Ideal for up to ~1,750 sq ft

• Operating Modes: Heating & Cooling

• ENERGY STAR®: Yes

• Refrigerant / Factory Charge: R‑454B, pre-charged

Key Features

• INVERTER Technology: Variable-speed compressor for energy-efficient, responsive operation

• Reliable Heating Performance: Delivers dependable heating and cooling throughout the year

• Single-Zone Ceiling-Suspended Design: Perfect for classrooms, offices, retail, and spaces with limited wall space

• Durable Construction: Blue Fin anti-corrosion coating ensures long-lasting durability

• Quiet Operation: Indoor noise levels as low as 39 dB(A) for comfortable, quiet use

• Smart Control Ready: Compatible with wired/wireless controllers and Mitsubishi Comfort app

• Low Ambient Cooling: Supports cooling operation down to 0°F for year-round versatility

• Pre-Charged & Installation Ready: Pre-charged for up to 165 ft of refrigerant line; easy ceiling suspension installation

Specifications (Rated Conditions)

• Cooling Capacity: 42,000 BTU | SEER2: 20.4 | EER2: 10.9

• Heating Capacity @ 47°F: 48,000 BTU

• Electrical: 208/230 V | 1-Ph | 60 Hz

• Airflow (Dry): 740-955 CFM

• Sound Pressure: Indoor 39-45 dB(A) | Outdoor 52-53 dB(A)

• Piping: Liquid ⅜ in. | Gas ⅝ in. | Max line length 165 ft | Max height 100 ft

• Indoor Dimensions / Weight: 63 x 26-3/4 x 9-1/16 in. | 86 lbs

• Outdoor Dimensions / Weight: 41-11/32 x 14 x 52-43/64 in. | 224 lbs

• Drain Connection: 11/16 in. O.D.

Included Components

• Indoor Unit: PCA‑AK42NL ceiling-suspended air handler

• Outdoor Unit: PUZ‑AH42NL heat pump condenser

Ideal For

Homeowners, contractors, and commercial users seeking an energy-efficient, ceiling-suspended mini-split system that offers quiet, reliable heating and cooling performance. Ideal for classrooms, offices, retail, or large spaces requiring dependable year-round comfort.