Mitsubishi PVA-AA18NL & PUZ-AK18NL 18,000 BTU 18.6 SEER2 Multi-Position Air Handler Heat Pump System - R454B

Mitsubishi PVA‑AA18NL & PUZ‑AK18NL: 18,000 BTU Multi‑Position Ducted Heat Pump System

The Mitsubishi PVA‑AA18NL, paired with the PUZ‑AK18NL outdoor unit, delivers efficient year-round comfort in a compact 18,000 BTU ducted heat pump system. Ideal for spaces up to ~750 sq ft, this single-zone solution offers reliable heating and cooling with flexible installation options and ENERGY STAR® certified performance.

Using INVERTER-driven technology and R‑454B refrigerant, the system delivers precise temperature control while maximizing energy efficiency. The indoor unit’s multi-position cabinet supports upflow, downflow, or horizontal configurations, making it suitable for a variety of installation environments. The PUZ‑AK18NL condenser ensures low-ambient performance down to –4 °F in heating and 0 °F in cooling, with Blue Fin coating for enhanced durability in coastal climates.

Quiet operation, smart control compatibility, and optional electric heat integration round out a system built for long-term comfort and performance.

General Information
System Type: Multi-position ducted air handler + single-zone heat pump condenser
Models : Indoor – PVA‑AA18NL | Outdoor – PUZ‑AK18NL
Capacities: 18,300 BTU Cooling | 24,000 BTU Heating
Room Size: Ideal for ~750 sq ft
Operating Modes: Heating & Cooling
ENERGY STAR®: Yes
Refrigerant / Factory Charge: R‑454B, pre-charged for line sets up to 100 ft

Key Features
INVERTER-Driven Compressor: High-efficiency heating and cooling with responsive modulation
Multi‑Position Air Handler: Supports horizontal, upflow, or downflow installations
Selectable Static Pressure: Adjustable to 0.30, 0.50, or 0.80 in.WG to match duct design
Low‑Ambient Capability: Operates down to 0 °F (cooling) and –4 °F (heating)
Blue Fin Coil Protection: Anti-corrosion coating for coastal and harsh environments
Quiet Operation : Indoor sound levels as low as 31 dB(A)
Smart Control Options: Compatible with wired and wireless remotes, third-party thermostats, and Mitsubishi Comfort App (adapter required)
Optional Accessories: Supports electric heat kits and ERV/humidifier connections

Specifications (Rated Conditions)
Cooling Capacity: 18,300 BTU
Heating Capacity @ 47 °F: 24,000 BTU
Heating Capacity @ 17 °F: 12,100 BTU
SEER2: 18.6
EER2: 11.7
HSPF2: 8.6
COP (47 °F): 3.4
Electrical: 208/230 V, 1‑Ph, 60 Hz
Airflow: 515 / 625 / 735 CFM
Sound Pressure: Indoor 31–40 dB(A) | Outdoor ~44–46 dB(A)
Piping: Liquid 1/4 in. | Gas 1/2 in. | Max line length: 100 ft | Max height: 100 ft
Drain Connection: 3/4 in. O.D.
Outdoor Dimensions / Weight: 34-19/16 × 11-13/16 x 24-13/16 in. | ~115 lb

Included Components
Indoor Unit: PVA‑AA18NL multi‑position ducted air handler
Outdoor Unit: PUZ‑AK18NL heat pump condenser

Ideal For
Homeowners, HVAC pros, or light-commercial users seeking a quiet, efficient ducted heat pump system for small to mid-sized zones. Built for flexibility, long-term durability, and smart control integration.