Comfort Sync A3 Ultra-Smart Communicating WiFi Thermostat

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Armstrong Air 1.841226 Comfort Sync A3 Communicating WiFi Thermostat

The Armstrong Air Comfort Sync A3 (part number 1.841226) is a factory-specified communicating thermostat designed for use with Armstrong Air communicating HVAC equipment. This advanced control interface provides integrated system management, remote access capability, and diagnostic communication for improved equipment performance and service efficiency.

The Comfort Sync A3 is intended for use with select variable-speed and modulating systems and supports functions such as high-resolution scheduling, live weather data integration, email-based service alerts, and remote connectivity via WiFi. The thermostat uses a touchscreen interface and is typically wall-mounted in residential or light commercial applications.

System Features

  • Communicating Control: Compatible with Armstrong Air communicating equipment for real-time diagnostics and performance optimization.
  • WiFi Enabled: Supports remote access through secure cloud-based interface.
  • Service Notifications: Sends maintenance and error alerts via email to contractor or end user.
  • Weather Integration: Accesses live forecasts to adjust temperature control strategies accordingly.
  • Custom Display Settings: Allows personalization of appearance and operational interface.

Technical Specifications

  • Model Number: 1.841226
  • Mounting: Surface wall-mount
  • Display Type: Full-color touchscreen
  • Power Source: 24V from system control board
  • Connectivity: WiFi (802.11) enabled for mobile access
  • Compatibility: Armstrong Air communicating equipment only (not universal)

Installation Requirements

This thermostat is designed for use only with compatible Armstrong Air communicating HVAC systems. Installation should be performed by licensed HVAC technicians familiar with communicating protocols and control wiring. The Comfort Sync A3 connects via a 4-wire communication bus and requires access to the homeowner’s secure WiFi network if remote access is desired.

Contractor Notes

The Comfort Sync A3 streamlines equipment setup, zoning configuration, and service diagnostics through its integrated platform. It provides field-level access to system performance data and error history and supports firmware updates over the air. This control is recommended for installations requiring advanced staging, humidity control, or performance monitoring via the Armstrong Air contractor portal.

Fast, Reliable Delivery for Every Order

At Primes Distribution, we understand that timely delivery is just as important as product quality. That’s why we partner with trusted carriers to make sure your plumbing, HVAC, and heating supplies arrive safely and on time.


Shipping Methods

We offer multiple shipping options to fit your needs:

  • Standard Shipping: 3–7 business days across the continental U.S.

  • Expedited Shipping: 1–3 business days for urgent orders.

  • Local Pickup: Available at our warehouse by appointment.

Order Processing

All in-stock orders are processed within 1–2 business days. You’ll receive a confirmation email once your order is placed and a tracking number as soon as it ships.

Orders placed after 3 PM or on weekends will be processed the next business day.


Shipping Costs

Shipping costs are calculated at checkout based on weight, dimensions, and delivery location. Large or heavy items (like water heaters or HVAC units) may require special freight handling.


Delivery Areas

We currently deliver throughout the United States. For bulk or international shipments, please contact our support team for a custom quote.


Damaged or Missing Items

If your shipment arrives damaged or incomplete, report it within 48 hours of delivery. Our support team will quickly arrange a replacement or refund.


Need Help?

If you have questions about your order or need help tracking a shipment, reach out to our customer support team at:
📧 sales@primesdistribution.com
📞 786-937-7081