Carrier KAAWS0101AAA Control

The Carrier KAAWS0101AAA Winter Start Control is a critical field-installed accessory designed to prevent nuisance tripping of the low-pressure switch during cold weather startups. This 24VAC time-delay relay (TDR) bypasses the low-pressure circuit for the first 3 minutes of operation, allowing system pressures to stabilize when evaporator temperatures are low. It is an essential component for split-system air conditioners utilizing low ambient cooling configurations, particularly when a MotorMaster controller is present. HVAC contractors rely on this OEM Carrier part to eliminate unnecessary service calls caused by low-pressure switch lockouts in cooling-only systems. The kit includes the TDR logic board (Part No. CESO130062-00) and necessary 24V lead wires for parallel wiring into the outdoor unit’s control circuit. This control ensures the compressor remains engaged long enough to establish a consistent refrigerant flow, maintaining operational reliability in demanding residential and light commercial environments without interfering with the unit's safety parameters after the initial startup period.

• Eliminates Nuisance Trips: Bypasses the low-pressure switch for 180 seconds to allow for pressure equalization in cold environments.
• Universal Compatibility: Engineered for split-system air conditioners; compatible with Infinity/Evolution and TechAssist single-stage boards.
• OEM Engineering: Authentic Carrier replacement part ensures exact electrical specifications and fitment within the outdoor control box.
• Low Ambient Protection: Crucial for systems operating in cooling mode during shoulder seasons or in specialized technical climates.

• Does this kit work with heat pumps? This specific winter start control is designed for cooling-only split systems and is typically not required or used on heat pump applications.
• Is a winter start control needed for fully communicating systems? If you are using a fully communicating Infinity or Evolution control for low ambient cooling, this hardware-based winter start control is generally not required as the logic is handled by the system software.
• How is the KAAWS0101AAA wired? It must be wired in parallel with the low-pressure switch run-wire, typically connecting to the 24VAC common (C) and cooling (Y/Y1) terminals via the provided blue, yellow, and brown leads.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.