Mitsubishi PVA-AA42NL & PUZ-AK42NL 42,000 BTU 19.1 SEER2 Multi-Position Air Handler Heat Pump System - R454B

Mitsubishi PVA-AA42NL & PUZ-AK42NL: 42,000 BTU Multi-Position Ducted Heat Pump System

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.

General Information
System Type: Multi-position ducted air handler + single-zone heat pump condenser
Models: Indoor – PVA-AA42NL | Outdoor – PUZ-AK42NL
Capacities: 44,000 BTU Cooling | 49,700 BTU Heating @ 47 °F
Room Size: Ideal for ~1,750 sq ft
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes
Refrigerant / Factory Charge: R-454B, pre-charged for line sets up to 165 ft

Key Features

• INVERTER-Driven Compressor: Efficient, responsive heating and cooling modulation

• Multi-Position Air Handler: Supports horizontal, upflow, or downflow installation

• Selectable External Static Pressure: 0.30, 0.50, or 0.80 in.WG

• Low-Ambient Capability: Operates down to 0 °F cooling and –4 °F heating

• Blue Fin Coil Protection: Durable corrosion resistance for coastal environments

• Quiet Operation: Indoor sound levels as low as 34 dB(A)

• Smart Control Ready: Compatible with wired/wireless remotes, third-party thermostats, and Mitsubishi Comfort App (adapter required)

• Optional Electric Heat Kit and ERV/Humidifier Terminals

Specifications (Rated Conditions)
Cooling Capacity: 44,000 BTU
Heating Capacity @ 47 °F: 49,700 BTU
Heating Capacity @ 17 °F: 29,600 BTU
SEER2: 19.1
EER2: 11.1
HSPF2: 9.4
COP (47 °F): 3.8
Electrical: 208/230 V, 1-Ph, 60 Hz
Airflow: 970 / 1,045 / 1,120 CFM (fan speeds)
Sound Pressure: Indoor 45–52 dB(A) | Outdoor 52–53 dB(A)
Piping: Liquid 3/8 in. | Gas 5/8 in. | Max line length 165 ft | Max height 100 ft
Drain Connection: 3/4 in. O.D.
Outdoor Dimensions / Weight: Approx. 41-11/32 × 14 × 52-43/64 in. | 224 lb

Included Components
Indoor Unit: PVA-AA42NL multi-position ducted air handler
Outdoor Unit: PUZ-AK42NL inverter heat pump condenser

Ideal For
Homeowners, contractors, and light-commercial users needing a high-capacity, energy-efficient ducted heat pump system for large spaces, with flexible installation and durable low-ambient performance.