AprilAire 8840 Wi-Fi Home Automation IAQ Thermostat
AprilAire 8840 Wi-Fi Home Automation IAQ Thermostat
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Typically ships in 1–3 Business Days (Western Canada) · 3–6 Business Days (Eastern Canada)
SKU:8840
A full-color Wi-Fi thermostat built for HVAC, Indoor Air Quality and home-automation integration.
The AprilAire 8840 combines multi-stage HVAC control with Indoor Air Quality functions and a two-part installation architecture. The thermostat communicates with an equipment control module over a three-wire connection, helping simplify retrofit projects where additional conductors are difficult to run.
AprilAire positions the 8840 for 3H/3C conventional or 4H/2C heat-pump systems, with Event-Based™ Air Cleaning plus humidity and ventilation control when paired with compatible equipment.
Key Features
- 3H/3C conventional or 4H/2C heat-pump system support.
- Full-color touchscreen interface.
- Wi-Fi connectivity.
- Event-Based™ Air Cleaning with compatible AprilAire air-cleaning equipment.
- Humidity and ventilation control for compatible AprilAire IAQ equipment.
- Two-part design with three-wire connection between the wall control and equipment control module.
- Designed for home-automation integration.
- Equipment Control Module and 8052 outdoor temperature sensor are included by AprilAire.
Application & Compatibility
Specify the 8840 when a project needs a color touchscreen, multi-stage control, IAQ integration and automation capability. For AprilAire Healthy Air App use, follow AprilAire commissioning instructions for selecting the correct cloud/automation operating mode.
Key Specifications
| Model | 8840 |
|---|---|
| Conventional Stages | Up to 3H/3C |
| Heat Pump Stages | Up to 4H/2C |
| Interface | Full-color touchscreen |
| Connectivity | Wi-Fi / home automation |
| IAQ Functions | Air cleaning, humidity and ventilation control |
| Wall-to-ECM Wiring | 3-wire |
Related AprilAire Products
- AprilAire 8051 Flush-Mount Temperature Sensor
- AprilAire 8052 Outdoor / Duct Temperature Sensor
- AprilAire 8053 Surface-Mount Temperature Sensor
- AprilAire 8083 Flush-Mount Temperature & Humidity Support Module
Frequently Asked Questions
What is included with the 8840?
AprilAire lists the 8840 thermostat, Equipment Control Module and 8052 outdoor temperature sensor in the package.
Is the 8840 a multi-stage thermostat?
Yes. It supports up to 3H/3C conventional or 4H/2C heat-pump systems.
Can the 8840 control Indoor Air Quality equipment?
Yes. It supports compatible AprilAire air-cleaning, humidity and ventilation functions.
