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The Aspen A2L4SA is an A2L Refrigerant Detection System (RDS) Kit designed for use with R-454B refrigerant systems. Engineered to provide reliable refrigerant leak detection and compliance with applicable safety standards, this kit integrates with the HVAC system through the furnace's 24-volt connection. Upon refrigerant detection, the system is designed to shut down the condenser and activate the furnace blower to help mitigate refrigerant accumulation. The kit is compatible with Aspen coils and is certified to meet UL 60335-2-40 requirements.
Sensor Not Included: This kit does not include the refrigerant detection sensor. A compatible sensor must be purchased separately to complete the installation and operation of the refrigerant detection system.
Designed for R-454B refrigerant systems
Compatible with Aspen coils
Certified to UL 60335-2-40 standards
Connects through the HVAC system's 24V control circuit
Shuts down the condenser upon refrigerant detection
Activates the furnace blower during detection events
Utilizes existing thermostat 24V wiring
Optional relay support for controlling additional components
Designed to minimize nuisance and false alarms
Sensor sold separately
This refrigerant detection system provides a flexible solution for A2L refrigerant applications and safety compliance. The kit is designed for straightforward integration with compatible HVAC systems while supporting required refrigerant mitigation functions. A compatible refrigerant sensor is required for operation and is not included with this kit.
Brand: Aspen
MPN: A2L4SA
Product Type: A2L Refrigerant Detection System Kit
Model: A2L4SA
Refrigerant Compatibility: R-454B
System Type: Refrigerant Detection System (RDS)
Configuration: Standard A
Control Voltage: 24 VAC
Certification: UL 60335-2-40
Compatible Equipment: Aspen Coils
Suitable For Use With: R-454B Refrigerant Detection Systems and 16 to 23 Inch Drain Pans
Mitigation Action: Condenser Shutdown and Furnace Blower Activation
Wiring Method: Existing Thermostat 24V Circuit
Optional Features: Auxiliary Relay Control Capability
Sensor Included: No
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