Mitsubishi PCA-AK42NL & PUY-AK42NL 42,000 BTU 20.4 SEER2 Ceiling Suspended Cooling Only System - R454B

Mitsubishi PCA‑AK42NL & PUY‑AH42NL: 42,000 BTU Ceiling‑Suspended Cooling Only System

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

General Information

System Type: Ceiling‑suspended ductless air handler + single‑zone cooling only condenser
Models: Indoor – PCA‑AK42NL | Outdoor – PUY‑AH42NL
Capacities: 42,000 BTU Cooling
Room Size: Ideal for up to 1,750 sq ft
Operating Modes: Cooling Only
ENERGY STAR®: Yes
Refrigerant / Factory Charge: R‑454B, pre‑charged

Key Features

INVERTER Technology: Variable-speed compressor for energy-efficient, responsive performance
Reliable Performance: Maintains steady cooling across varying outdoor temperatures

Single-Zone Focus: Designed for dependable comfort in large residential or light commercial spaces
Durable Construction: Blue Fin anti-corrosion coating and protective features for long-term reliability
Quiet Operation: Indoor sound levels as low as 39 dB(A) ensure discreet, comfortable performance
Smart Control Ready: Compatible with wired/wireless controllers and the Mitsubishi Comfort app
Low Ambient Cooling: Supports cooling operation down to 0°F for flexible year-round use
High Installation Flexibility: Pre-charged for line sets up to 225 ft, with long vertical rise options

Specifications (Rated Conditions)

Cooling Capacity: 42,000 BTU | SEER2: 20.4 | EER2: 10.9
Cooling Capacity @ 95°F: Up to 42,500 BTU
Electrical: 208/230 V | 1-Ph | 60 Hz
Airflow (Dry): 740-955 CFM
Sound Pressure: Indoor 39-45 dB(A) | Outdoor 52 dB(A)
Piping: Liquid ⅜ in. | Gas ⅝ in. | Max line length 225 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 52-43/65 in. | 224 lbs
Drain Connection: 11/16 in. O.D.

Included Components

Indoor Unit: PCA‑AK42NL ceiling-suspended air handler
Outdoor Unit: PUY‑AH42NL cooling only condenser

Ideal For

Homeowners, contractors, and commercial users seeking an energy-efficient, ceiling-suspended mini-split system that delivers cooling performance with quiet operation. Perfect for classrooms, kitchens, retail, or open spaces requiring reliable year-round comfort.