Smart HVAC Control with Alarm.com

Full integration with the Alarm.com smart home and business platform allows the ADC-T40K-HD-W to become part of a connected automation system rather than operating as a stand-alone thermostat. Temperature settings can work with Alarm.com scenes, schedules and geo-fences to automatically adjust comfort settings based on occupancy, system activity or location.

Optional local scheduling provides additional flexibility, including the ability to install and configure the thermostat in a vacant property before an Alarm.com account is created.

ADC-T40K-HD-W Key Features

• Color touchscreen display
• Easy-to-use setup wizard
• Mechanical wire detection
• Z-Wave SmartStart compatible
• Z-Wave S2 security compatible
• Full Alarm.com platform integration
• Energy-saving schedules and automation scenes
• Geo-fence automation support
• Optional local scheduling
• Humidity control
• Ventilation control
• HVAC performance monitoring and alerts

Z-Wave SmartStart & S2 Compatibility

The ADC-T40K-HD-W supports Z-Wave SmartStart for streamlined device enrollment and Z-Wave S2 for secure communication within compatible Alarm.com systems.

Once integrated with the Alarm.com platform, thermostat operation can be coordinated with other connected security and automation devices to create a more responsive approach to comfort, property management and energy usage.

Smarter Energy & Comfort Management

Alarm.com integration allows the Smart Thermostat HD to use energy-saving schedules, scenes and geo-fences to help reduce unnecessary heating and cooling while maintaining comfortable conditions when a property is occupied.

Support for humidity and ventilation control expands the thermostat beyond basic temperature management, providing greater control over indoor comfort when used with compatible HVAC equipment.

HVAC System Monitoring

The Alarm.com Smart Thermostat HD can monitor the health and performance of the connected heating and cooling system, helping identify operating conditions that may require attention.

Performance reporting and on-screen HVAC alerts provide additional visibility into system operation, helping property owners and managers recognize potential heating or cooling issues before they become more disruptive.

Simplified Setup & Installation

Mechanical wire detection and the built-in setup wizard are designed to simplify thermostat configuration. The color touchscreen provides an intuitive interface for setup, local adjustments and system information.

The ADC-T40K-HD-W operates from 24 VAC power and requires a C-wire connection. Local configuration and optional local scheduling also allow installation before Alarm.com account activation when needed.

ADC-T40K-HD-W Specifications

HVAC Control Capabilities

• Heating: Up to 3 stages
• Cooling: Up to 2 stages
• Heat Pump: Compatible with O and B systems
• Dual Fuel: Supported
• Humidifier: Supported
• Dehumidifier: Supported
• Ventilation: HRV, ERV and external air baffle control
• Platform: Alarm.com integrated energy management

ADC-T40K-HD-W FAQs

What is the Alarm.com ADC-T40K-HD-W?
The ADC-T40K-HD-W is the white version of the Alarm.com Smart Thermostat HD. It features a color touchscreen and integrates with the Alarm.com platform for connected HVAC and energy management.

Does the ADC-T40K-HD-W work with Z-Wave?
Yes. It supports Z-Wave SmartStart and Z-Wave S2 communication for integration with compatible Alarm.com systems.

Does the Smart Thermostat HD require a C-wire?
Yes. The ADC-T40K-HD-W requires 24 VAC power with a C-wire connection.

Alarm.com Thermostat Features

Can the ADC-T40K-HD-W control humidity?
Yes. The Smart Thermostat HD supports humidifier and dehumidifier control when used with compatible HVAC equipment.

Can it control ventilation equipment?
Yes. Ventilation support includes HRV, ERV and external air baffle control.

Can the thermostat operate before an Alarm.com account is created?
Optional local scheduling allows the thermostat to be installed and configured in a vacant property prior to account creation.