Genetron® 407C (Honeywell)

Description

Honeywell’s Genetron 407C blends R‑32, R‑125, and R‑134a to deliver pressures and performance comparable to R‑22, enabling cost-effective retrofit of HCFC-22 systems.

Key Features:

• Zero ODP, ASHRAE A1 safety

• Close match to R‑22 in medium‑temperature performance

• Widely accepted for retrofits in HVAC systems

Specifications:

• Blend: 23% R‑32 / 25% R‑125 / 52% R‑134a

• GWP: ~1,744

• Boiling Point: –43.8 °C

• Lubricant: POE oil

• Packaging: 25 lb or 60 lb cylinders

Applications:

• Residential split and packaged A/C units

• Heat pump retrofits

• Institutional HVAC and light commercial systems

Usage:

• Remove R‑22 entirely before charging

• Charge as liquid to maintain blend composition

• Replace lubricant with POE oil only

FAQs:

1. Is 407C a drop-in for R‑22?
   No—the system must be purged, and oil replaced for matching performance.

2. What is temperature glide in 407C systems?
   Components evaporate over a temperature range, affecting pressure balance.

3. How does R‑407C compare to R‑410A?
   R‑410A operates at higher pressure and doesn’t match R‑22 retrofits directly.