LG High-Efficiency Electric Inverter Heat Pump Water Heater | 58 Gallon | 76 FHR | 3.93 UEF | Water Leak Detection | APHWC501L

High-Efficiency Inverter Heat Pump Water Heating with Smart Demand Response & Leak Detection

Upgrade your home’s hot water system with the LG 58-Gallon High-Efficiency Inverter Electric Heat Pump Water Heater (Model APHWC501L), engineered to deliver exceptional hot water performance, smart grid integration, and advanced home protection. Powered by a variable-speed Inverter Twin Rotary Compressor and dual back-up heating elements, this high-efficiency unit achieves an outstanding Uniform Energy Factor of 3.93 UEF (qualifying under NEEA Tier 4), reducing annual electrical energy consumption to just 1,262 kWh/year. Housed in a sleek square-shaped silver cabinet, the APHWC501L provides a 53-gallon rated storage volume and a strong First Hour Rating (FHR) of 76 gallons, making it a reliable solution for medium to large residential households.

Designed for complete peace of mind, this Demand Response Ready model features a built-in EcoPort® (CTA-2045 port) for utility smart-grid connectivity and includes a field-installable water leak detection sensor. Combined with whisper-quiet operation at just 42 dBA in Auto mode and integrated LG ThinQ™ Wi-Fi controls, the APHWC501L offers a modern, intelligent approach to water heating.

Key Benefits

• Ultra-High Efficiency (3.93 UEF) – Features advanced inverter technology qualifying under NEEA Tier 4 standards, consuming only 1,262 kWh/year.
• Demand Response Ready with Built-In EcoPort® – Equipped with an integrated CTA-2045 EcoPort® port to support utility load-management programs and Time-of-Use (TOU) optimization.
• Included Water Leak Detection Sensor – Comes with a field-installable water leak detection sensor to detect moisture early and help safeguard your home against potential water damage.
• 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 – Modulates compressor speed automatically with an Electronic Expansion Valve (EEV) for optimal temperature control and efficiency across varying ambient conditions.
• 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 adjust target water temperatures, change operating modes, program schedules, and manage Time of Use settings via the LG ThinQ app.
• Whisper-Quiet Operation – Operates at an ultra-quiet 42 dBA in Auto mode and 45 dBA in Turbo mode, ensuring quiet background operation.
• Corrosion-Resistant Tank Construction – Protected by heavy-duty foam insulation (1.6 to 2.4 in.), an internal enamel tank coating, and a protective anode rod for long tank life.
• Wide Ambient Operating Range – Operates in heat pump mode across outdoor/ambient air temperatures from 23°F to 120°F.

Designed for High-Efficiency Residential Applications

With its 58-gallon nominal capacity and 76-gallon First Hour Rating, the LG APHWC501L is designed to easily fulfill everyday household hot water demands. An internal water temperature sensor continuously tracks water draw to automatically optimize heating cycles and maximize energy savings.

Inverter Technology with Dual Heat Sources

Unlike standard single-speed heat pumps, LG’s variable-speed Twin Rotary compressor dynamically adjusts output based on real-time hot water demand. For high-demand recovery periods, two independent upper and lower 5 kW electric heating elements operate alongside or in place of the heat pump to guarantee continuous hot water comfort.

Intelligent LG ThinQ™ Smart Controls

The unit features an intuitive front-panel digital display with 4-button navigation (Mode, Set, Up, Down). Built-in LG ThinQ™ Wi-Fi connectivity gives homeowners full control to customize settings and switch between modes from anywhere:

• 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 water setpoints during extended trips to reduce energy consumption.

Built for Quiet, Long-Lasting Durability

An advanced brushless DC fan motor and custom propeller design deliver smooth airflow while maintaining whisper-quiet sound levels between 42 dBA and 45 dBA. Thick 1.6 to 2.4-inch foam insulation minimizes standby heat loss, while side-located 3/4" NPT water connections streamline plumbing installation.

Warranty

The LG APHWC501L Heat Pump Water Heater is backed by LG’s comprehensive residential warranty program, offering trusted quality and support from a global leader in HVAC and appliance engineering.

What’s Included

• LG 58-Gallon Inverter Electric Heat Pump Water Heater (APHWC501L)
• Field-Installable Water Leak Detection Sensor
• Pre-Installed Primary Anode Rod
• Temperature & Pressure (T&P) Relief Valve (3/4" NPT, 210°F)
• 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 30.0A 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" NPT inlet and outlet pipe thread connections.
• Drain Hose Connection – Accommodates 3/4" or 1/2" NPT condensate drain line connection.
• 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.
• Automatic Water Shut-Off Valve – The water leak detection sensor is included, but an automatic shut-off valve is NOT included and must be field-supplied if auto-shutoff functionality is required.