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The TRANE rng02126 is an O-ring sealing component engineered specifically for refrigerant service applications in TRANE HVAC systems. With an inner diameter of 34.0 inches and a cross-sectional diameter of 0.275 inches, this O-ring provides a reliable, leak-free seal at refrigerant joints and connection points. It is rated for refrigerant use only, meaning it is formulated to resist degradation when exposed to refrigerant media. HVAC technicians install this part during system service, component replacement, or any repair procedure that requires breaking a refrigerant-side connection and restoring the seal to specification.
This O-ring is intended for use in refrigerant-side applications within TRANE central air and HVAC systems. Typical install scenarios include servicing refrigerant line connections, replacing seals on compressor or valve fittings, and any maintenance task that disturbs a sealed refrigerant joint. Because it is designated for refrigerant service only, it should not be substituted into oil, water, or other fluid applications where a different compound or size specification may be required.
Designed as an OEM-style refrigerant-service replacement O-ring for TRANE HVAC and central air systems requiring a 34.0-inch inner diameter by 0.275-inch cross-section seal.
Installation should be performed by a licensed HVAC technician holding the appropriate EPA Section 608 refrigerant handling certification. Before replacing this O-ring, recover all refrigerant from the affected circuit following applicable environmental regulations and system manufacturer procedures. Inspect the mating surfaces for nicks or contamination before seating the new O-ring, and apply a compatible refrigerant oil to the O-ring to ease installation and prevent damage during assembly. Do not reuse a previously compressed or damaged O-ring.
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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