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The RHEEM 45-109519-11 is a plug housing assembly designed for use with A2L-compatible thermostat wiring connections in Rheem HVAC systems. This component provides the mechanical and electrical interface between the thermostat wiring harness and the system control, ensuring a secure, code-compliant connection in systems that use A2L low-GWP refrigerants. It is sold as an individual unit and is typically installed by licensed HVAC technicians performing thermostat replacement or control wiring service on compatible Rheem equipment.
This plug housing assembly is intended for residential and light commercial HVAC applications where A2L refrigerant-compatible system controls are specified. It is used during thermostat wiring harness replacement, connector repair, or system retrofits that require an OEM-matched plug interface. Technicians working on Rheem equipment that specifies A2L low-GWP refrigerant compatibility should verify this assembly matches the connector configuration of their unit before installation.
Designed as an OEM replacement plug housing assembly for Rheem HVAC systems specifying A2L thermostat connector compatibility. Verify connector type and pin configuration against the existing harness before ordering.
Installation should be performed by a licensed HVAC technician. Disconnect all power to the system at the disconnect switch and breaker panel before handling any wiring or connectors. Confirm the replacement plug housing matches the existing connector body and pin count before seating the connection. Work should comply with applicable local electrical codes and the manufacturer's installation instructions.
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