5 Series 3D 508C11 LOW GWP Icon

5 Series 3D 508C11

Combo
27.8 EER
4.7 COP
Best of both worlds

The 5 Series 3D 508C11

Why compromise?
5 Series 3D Why compromise?

The 5 Series 3D is unlike anything else in our product lineup and is the perfect solution for consumers that want forced air heating and cooling along with radiant floor heat. The 5 Series 3D boasts an amazing 27.8 EER and 4.7 COP while keeping your home and floors nice and toasty.

3 in 1 convenience
Smart Technology for 3 in 1 convenience

Radiant hydronic heat is widely regarded as the most comfortable way of heating the home while forced air is typically the most cost-effective. The 5 Series 3D combines the best of both worlds, providing the luxurious comfort of radiant heat while providing traditional forced air heating as well — all from a single unit.

Hot water assist
Domestic hot water Hot water assist

The 5 Series 3D preheats your water and delivers it to your water heater or storage tank. A sophisticated microprocessor controls and monitors heat pump conditions and determines when there is excess heat available to route to the hot water heater. This allows you to utilize heat in the most efficient way possible.

Comfortable from anywhere
Comfortable from anywhere

Imagine a platform that can provide detailed feedback of your system in real-time and the tools to control it all from any web-enabled smart phone, tablet, or computer. That's Symphony. Now required with 5 Series 3D, receive alerts and service reminders via email, text message, and in-app notifications — for you and your contractor.

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Have it all
Have it all

The 5 Series 3D was designed to combine the comfort of radiant heat with the efficiencies of forced air. Whether you choose to use radiant heat in small zones like bathrooms and the kitchen or in larger zones like the basement floor, the 5 Series 3D delivers.

More than efficient

WaterFurnace 5 Series 3D systems are rated number one in energy efficiency because they can deliver over four dollars of energy for every dollar of electrical energy used. That translates into an efficiency rating of over 400 percent, compared to the best ordinary furnace that delivers less than 97 cents of energy for every dollar spent on expensive fossil fuels.

GeoTank
GeoTank

In combination with envelope control, the GeoTank is simply the best way to ensure reliable performance and long life. Required with all installations.

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Other 5 Series 3D Features
Amazon Alexa Integration
Amazon Alexa Integration

Through Symphony, Amazon Alexa integration allows owners to control a connected unit in their home with voice commands through a compatible smart device.

Aurora Controls
Aurora Controls

Aurora provides full two-way communication between components, advanced operating logic and robust troubleshooting capabilities. It adds support for hot water generation and Symphony. Premium controls package is STANDARD, and includes energy, performance, and refrigeration monitoring.

IntelliStart
IntelliStart

This optional soft starter reduces start-up amperage by up to 60% of normal draw to reduce noise, eliminate light flicker, and increase compressor life.

VS Blower Motor
VS Blower Motor

A variable speed ECM motor runs at only the speed needed for maximum efficiency, savings, and quiet operation.

OptiSure™ Envelope Control
Envelope Control

Envelope control works with the GeoTank to ensure long life and reliability of your system. This industry leading technology will provide years of trouble free operation by adjusting GeoTank temperature to keep the compressor in optimal operating conditions

All-Aluminum PinnaCoil™
All-Aluminum PinnaCoil™

Our exclusive all-aluminum PinnaCoil has anti-corrosive properties with an advanced tubing design that increases performance and provide a lower operating cost than alternatives.

Model
Series
Sizes
Efficiency1
Refrigerant
Compressor
Blower
Cabinet Configuration
Stages
Controls
Air Coil
Hot Water Generation
Auxiliary Heat2
Zone Control3
ENERGY STAR® Certified4
LOW GWP Icon 5 Series 3D 508C11 5 Series 3D 508C11
Model

508C11

Series

5 Series 3D

Sizes

3 to 6 ton dual capacity
(4 sizes)

Efficiency1

Up to 4.7 COP

Up to 27.8 EER

Refrigerant

R-454B

Compressor

High-efficiency scroll (dual capacity)

Blower

Variable speed ECM

Cabinet Configuration

Vertical top discharge

Left or right return

Stages2

3 heat*

2 cool

Controls

Aurora Premium Controller with performance, energy and refrigeration monitoring

Onboard diagnostics

Symphony compatible

Air Coil

All-Aluminum PinnaCoil™

Hot Water Generation

Optional external mount pump

Auxiliary Heat

Optional internal mount on vertical

Zone Control

IntelliZone2 (up to 4 zones) (2025)

ENERGY STAR® Certified3

Yes, all sizes

Notes:

  1. AHRI 13256-1 (GLHP) for water-to-air units. AHRI 13256-2 (GLHP) for water-to-water units.
  2. With auxiliary heat where applicable
  3. Hydronic air handlers or units without Aurora Advanced Controls require Intellizone2 24 Volt for zoning functionality.
  4. Closed earth loop rating points
Symphony Home Energy Management
Symphony Home Energy Management

Symphony is a cloud and Wi-Fi based platform that gives you access to the comfort system from practically anywhere. It provides control over the entire geothermal system-not just the temperature as in other 'smart thermostat' systems.

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IntelliZone2 Zoning System
IntelliZone2 Zoning System

Unique among zoning systems, IntelliZone2 is controlled from a beautiful color touch-screen thermostat. Its 4.3" display can be customized with images like family photos.

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GeoTank Hot Water Storage Tank
GeoTank Hot Water Storage Tank

The perfect choice for storing hot water generated from the system or for geothermal hydronic systems.

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