HVAC
PENN COMMERCIAL
REFRIGERATION CONTROL PRODUCTS
REFRIGERANTS AND PRODUCT MATERIAL COMPATIBILITY
Requirements such as material compatibility ( with refrigerants , refrigerant oils and other medias ), system operating pressures and temperatures , and operating environment must be considered when selecting pressure controls , fan speed controls , water regulating valves and / or pressure transducers for HVACR applications .
The table below provides a listing of the PENN products that are materially compatible with the most common commercially available refrigerants .
As a standard practice , please review the applicable PENN product technical bulletin to confirm that the respective control ’ s maximum working pressure is suitable for the refrigerant being used . In addition , you should confirm that the product ’ s operating temperatures and enclosure are suitable for the intended application .
NOTE
Controls used with flammable refrigerants typically require special construction and safety agency approvals including , ATEX compliance . Selective PENN P77 , P78 , P100 and P599 series controls are ATEX compliant . The requirement for ATEX compliance and other safety agency approvals depends on the refrigerant and the application ’ s explosion hazard zone . ATEX compliant controls are not always required when flammable refrigerants are involved . However , you should always check with the proper authorities to confirm the requirements .
REFRIGERANT SAFETY CLASS
P20
P28
P74
P735 / P736
P77 / P78
REFRIGERANT
R22 • • • • • • • • • • • • • •
R124 • • • • • • • • • • • • • •
R134a • • • • • • • • • • • • • •
R404A • • • • • • • • • • • • • •
R407A • • • • • • • • • • • • • •
R407C • • • • • • • • • • • • • •
R407F • • • • • • • • • • • • • •
R407H • • • • • • • • • • • • • •
R410A • • • • • • • • • • • • • •
A1 R422D • • • • • • • • • • • • • •
R438A • • • • • • • • • • • • • •
R448A • • • • • • • • • • • • • •
R449A • • • • • • • • • • • • • •
R449B • • • • • • • • • • • • • •
R450A • • • • • • • • • • • • • •
R452A • • • • • • • • • • • • • •
R507A • • • • • • • • • • • • • •
R513A • • • • • • • • • • • • • •
R744 ( CO 2
) • • • • • • • • • • • • • •
... Continued ...
P100
P215
P216 ( P499 TRANSDUCER )
P266 ( P266SNR-1C , -2C )
P315
P499
P599
V46 / V48
V246 / V248
1 - REFRIGERATION European Products Catalogue 2021