LG High-Efficiency Electric Inverter Heat Pump Water Heater | 58 Gallon | 76 FHR | 3.93 UEF | 10-Year Warranty | APHWC501M

High-Efficiency Inverter Heat Pump Water Heating for Exceptional Energy Savings

Upgrade your home’s hot water system with the LG 58-Gallon High-Efficiency Inverter Electric Heat Pump Water Heater (Model APHWC501M), engineered to deliver continuous hot water comfort while drastically cutting energy consumption. Powered by an advanced Inverter Twin Rotary Compressor and dual back-up electric heating elements, this high-efficiency unit achieves an outstanding Uniform Energy Factor of 3.93 UEF, reducing annual electrical consumption to just 1,262 kWh/year. Housed in a sleek square-shaped silver cabinet, the APHWC501M provides a 53-gallon rated storage volume and an impressive First Hour Rating (FHR) of 76 gallons, making it an ideal solution for medium to large residential households.

Built for whisper-quiet performance and long-term durability, this premium heat pump water heater operates at noise levels as low as 42 dBA in Auto mode. It combines built-in LG ThinQ™ Wi-Fi smart control with dual energy sources—a heat pump module plus upper and lower 5 kW heating elements—ensuring redundant, reliable operation even under heavy water demand or extreme ambient conditions.

Key Benefits

• Ultra-High Efficiency (3.93 UEF) – Utilizes advanced inverter compressor technology to deliver maximum energy savings, consuming only 1,262 kWh/year.
• High-Capacity Hot Water Delivery – Features a 58-gallon nominal capacity (53-gal rated storage volume) with a 76-gallon First Hour Rating (FHR) and a recovery rate of 22.7 GPH at a 90°F rise.
• Inverter Twin Rotary Compressor – Continuously modulates heating output with an Electronic Expansion Valve (EEV) to optimize performance across varying ambient temperatures.
• Dual Heating Sources with Redundancy – Combines the heat pump module with dual 5 kW back-up electric heating elements, allowing continuous operation even if a single component requires service.
• Built-In LG ThinQ™ Wi-Fi Smart Controls – Remotely manage operation modes, adjust target water temperatures, set daily schedules, and monitor hot water temperature via the LG ThinQ app.
• Whisper-Quiet Operation – Operates at an ultra-quiet 42 dBA in Auto mode and 45 dBA in Turbo mode, preserving a peaceful home environment.
• Corrosion-Resistant Enamel Tank & Anode Rod – Protected by heavy-duty foam insulation (1.6 to 2.4 in.), an internal enamel tank coating, and a protective anode rod to ensure long water tank service life.
• Wide Ambient Operating Range – Operates in heat pump mode across outdoor/ambient air temperatures ranging from 23°F to 120°F.
• ENERGY STAR® Certified & cCSAus Listed – Certified to exceed stringent DOE efficiency standards and North American safety requirements.

Designed for High-Efficiency Residential Applications

With its 58-gallon nominal capacity and 76-gallon First Hour Rating, the LG APHWC501M effortlessly satisfies the daily hot water demands of modern households. An integrated water temperature sensor continuously tracks water draw to automatically optimize heating cycles and maximize efficiency.

Built-in Demand Response technology helps satisfy state requirements for qualifying installations in Colorado, Washington, Oregon, and New York

Intelligent LG ThinQ™ & Digital Control Display

The front panel features a clear digital display with intuitive 4-button navigation (Mode, Set, Up, Down). Built-in LG ThinQ™ Wi-Fi connectivity lets homeowners monitor water temperature and customize settings from anywhere using the mobile app:

• Auto Mode – Intelligently balances heat pump and element usage for optimal energy efficiency and rapid comfort.
• Heat Pump Mode – Maximizes energy savings by utilizing only the inverter heat pump for water heating.
• Turbo Mode – Activates both the heat pump and electric heating elements simultaneously for maximum hot water recovery.
• Vacation Mode – Lowers setpoints during extended trips to conserve energy.

Built for Quiet, Durable Performance

An innovative brushless DC fan motor and custom propeller design deliver smooth airflow while maintaining whisper-quiet sound levels between 42 dBA and 45 dBA. The high-density foam insulation (1.6~2.4 in.) minimizes standby heat loss, while side-located 3/4" NPT water connections streamline plumbing routing.

Warranty

The LG APHWC501M Heat Pump Water Heater is backed by LG’s comprehensive residential warranty program, offering trusted quality and support from a world leader in HVAC and appliance engineering.

What’s Included

• LG 58-Gallon Inverter Electric Heat Pump Water Heater (APHWC501M)
• Pre-Installed Primary Anode Rod
• Temperature & Pressure (T&P) Relief Valve (3/4" NPT)
• Drain Valve (3/4" NPT)
• Owner's Manual & Installation Guide

Requirements & Considerations

• Electrical Requirements – Requires a dedicated 208-240V / 60 Hz / 1-Phase power supply with a Minimum Circuit Ampacity (MCA) of 30.1A and Maximum Overcurrent Protection (MOP) of 30.0A breaker size.
• Upper & Lower Heating Elements – Rated at 3.8 kW @ 208V or 5.0 kW @ 240V.
• Water Connections – Side-mounted 3/4" female or male NPT inlet and outlet pipe thread connections.
• Drain Hose Connection – Accommodates 3/4" or 1/2" male/female pipe thread condensate drain line.
• Working Pressure Ratings – Maximum working water tank pressure of 150 psi; design system pressure of 290 psi (High Side) / 130.5 psi (Low Side).
• Dimensions & Clearance – Net unit dimensions measure 22-27/32" W x 63-31/32" H x 22-29/32" D. Ensure adequate room volume or optional duct adapter (PHDCLA0) installation for proper airflow.