YORK CHAMPION R-410A Thermal Expansion Valve Kit 3/4″ Chatleff CON S1-1TVMBC1

YORK CHAMPION R-410A Thermal Expansion Valve Kit 3/4″ Chatleff CON S1-1TVMBC1

The S1-1TVMBA1 is a thermostatic expansion valve kit sized at 3/4 inch, designed for multi-position coils with a horizontal pan. This thermal expansion valve includes an internal check valve and is intended for use with flex coils on the listed coil and air handler models.

Key Features

• 3/4-inch Chatleff connection for secure, leak-resistant installation
• Engineered for R-410A refrigerant systems
• Regulates refrigerant flow and maintains constant superheat for stable system operation
• Internal check valve design supports proper refrigerant metering in flex coil applications
• Compatible with multi-position coils featuring a horizontal drain pan

Benefits

• Optimizes cooling performance and ensures overall system efficiency
• Helps reduce energy consumption by maintaining proper refrigerant metering
• Genuine OEM-style replacement designed to restore factory-level cooling performance
• Straightforward kit installation for HVAC technicians servicing flex-coil indoor units
• Suited for both refrigeration systems and air conditioning systems

Compatible Brands / Equipment
Cross-referenced and sold under multiple brand labels due to shared OEM manufacturing (Johnson Controls Unitary Products group), including:

• York
• Coleman
• Luxaire
• Champion
• Source 1 (OEM replacement parts division)

Used on multi-position coil models CM, CF, and CU, including part numbers CM18ABAA1A, CM24ABAA1A, and CM42CBAA1A, as well as air handler models AP, AE, and AVC. This kit is part of a related family of expansion valve kits (S1-1TVMBA1, B1, C1, D1) sized for different tonnage/coil combinations always confirm the exact size and coil model before ordering.