Replaces R-22, R-407C, R-422D and R-417A.
NU-22B is the only R-22 replacement you need. Here’s why.
The operating characteristics you know and trust. NU-22B closely mimics the operating characteristics of R-22, making it the high-performance choice for both OEM and service replacement uses.

No complications, no expensive retrofits. You won’t need any product-specific tools or supplies to use NU-22B. It’s compatible with all standard oils and all standard equipment components and materials used in R-22 systems.

Proven quality and performance. NU-22B is in use in thousands of installations throughout the world. You can use it with complete confidence. Safe and responsible. NU-22B is nonflammable, nontoxic and is classified A1 by ASHRAE. It is also a zero ODP refrigerant.

ICOR Part# NUB25
UPC# 834674000000
Package Size: 25 lb

NU-22B Facts

ASHRAE Safety Classification A1
Non-ozone depleting, Non-toxic 
Greater capacity than R-417A
R-22 operating pressures

msds  NU-22B Safety Data Sheet
NU22B Spec Sheet  NU-22B® Performance Relevant to
         R-22 - Question / Answer

NU22B Spec Sheet  NU-22B Performance Analysis
NU22B Spec Sheet  NU-22B Spec Sheet
NU22B Spec Sheet  NU-22B Conversion Guidelines
NU22B Quick Guide  NU-22B Quick Guide
NU22B Technical Bulletin (EEV)  Tech2Tech Service Update - R-22 Electric Expansion Valve (EEV)

NU-22B Case Studies
NU22B Spec SheetMulti Family Housing Unit Field Study
NU22B Spec Sheet
Technical / Service Document - R-22 to NU-22B (R-422B) Comparison
NU22B Spec Sheet
Technical / Service Bulletin - R-22 System Conversions - Unqualified Applications

It Works! Video
User Testimonial Video
NU-22B® Testimonial Video
NU-22B System Conversion


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