Mitsubishi PCA-AK42NL & PUZ-AK42NLHZ 42,000 BTU 19.6 SEER2 Ceiling Suspended Hyper Heat Pump System - R454B

Mitsubishi PCA‑AK42NL & PUZ‑AH42NLHZ: 42,000 BTU Ceiling‑Suspended Hyper‑Heat Pump System

The Mitsubishi PCA‑AK42NL indoor unit paired with the PUZ‑AH42NLHZ Hyper‑Heat outdoor condenser delivers efficient 42,000 BTU cooling and robust heating performance with Hyper‑Heating inverter technology. Designed for single‑zone ceiling‑suspended applications, this mini-split provides dependable, quiet comfort for spaces up to approximately 1,750 sq ft—even in extreme cold down to –13 °F. It operates with eco-friendly low‑GWP R‑454B refrigerant and features durable, corrosion-resistant construction.

General Information

• System Type: Ceiling‑suspended ductless air handler + single‑zone Hyper‑Heat pump condenser

• Models: Indoor – PCA‑AK42NL | Outdoor – PUZ‑AH42NLHZ

• Capacities: 42,000 BTU Cooling | 54,000 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 & Hyper‑Heating: Variable-speed compressor maintains efficient operation even at –13 °F

• Commercial‑Grade Build: Durable materials withstand high‑traffic, dirty environments 

• Quiet, Ceiling-Suspended Design: Ideal for retail, classrooms, restaurants—with sound levels as low as 39 dB(A)

• Low Ambient Cooling: Operates in cooling mode down to 0 °F 

• Smart Controls & Maintenance: Auto fan speed, washable filters with status light, outside-air intake knock-out, multi-airflow modes

• Pre‑charged & Easy Install: Factory-charged for up to 245 ft line set; includes base‑pan heater for cold protection

Specifications (Rated Conditions)

• Cooling @ 95 °F: Max 43,000 BTU · Rated 42,000 BTU

• Heating: @47 °F: 54,000 BTU; @5 °F: 48,000 BTU

• Efficiency: SEER2 19.6 · EER2 10.1 · HSPF2 10.2 · ENERGY STAR certified 

• Electrical: 208/230 V · 1‑Phase · 60 Hz

• Airflow: 740-955 CFM (dry)

• Sound: Indoor 39-45 dB(A); Outdoor 60-62 dB(A)

• Piping: Liquid ⅜″ · Gas ⅝″ · Max line length 245 ft · Max height 100 ft

• Dimensions: Indoor 63" x 26-3/4" x 9-1/16" · ~86 lb | Outdoor 41-11/32" x 14" x 52-43/64" · ~271 lb

Included Components

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

• Outdoor Unit: PUZ‑AH42NLHZ Hyper‑Heat pump condenser

Ideal For

Homeowners, contractors, and commercial users who need a powerful, efficient ceiling‑suspended mini-split. Ideal for schools, retail, restaurants, kitchens, and large rooms that require quiet, reliable, year-round comfort—even in extreme cold.