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The CARRIER ksaic0401230 is a 24-volt interface kit designed for second-generation ductless mini-split systems. It provides low-voltage signal integration between a conventional thermostat or building automation controller and a compatible ductless indoor unit, allowing the system to respond to standard 24V control signals. This kit is installed by licensed HVAC technicians performing system upgrades or integrations where a ductless unit must interface with an existing wired thermostat or zone control panel. The kit measures 13.4 inches in length, 11.8 inches in width, and 3.9 inches in height, and ships at 5.7 pounds.
This interface kit is intended for use with second-generation CARRIER ductless systems in residential and light commercial applications. It is a common solution when integrating a ductless unit into a multi-zone wired control setup or replacing an existing interface module on a qualifying system. Installation is typically performed during a system retrofit or commissioning phase where low-voltage control wiring is already present or being newly routed.
Designed for use with second-generation CARRIER ductless systems requiring 24V low-voltage interface control integration.
Installation should be performed by a licensed HVAC technician. Disconnect all power to the indoor and outdoor units before handling wiring or mounting the interface kit. Follow the system wiring diagram provided with the kit and verify compliance with NEC low-voltage wiring requirements. Do not energize the system until all connections are secured and verified.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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