Engineering Bulletin – Variable capacity, Copeland, Digital compressors and Controls Application Bulletin

Variable capacity, Copeland, Digital compressors and Controls Application Bulletin PDF VERSION Variable capacity, Copeland, Digital compressors and Controls Application Bulletin   General: 1. The capacity variation is achieved using a pulse to load and unload the compressor. It is a 2 to 20 second run of a 20 second cycle. This unloading can vary from…

Engineering Bulletin – New Low GWP Refrigerant

Meets USA EPA and Environment Canada 2016 Proposed ruling. PDF Version RefPlus_new_low_GWP_Refridgerant Refplus approves the following modern refrigerants to their medium and low temperature refrigeration evaporators, condensers and condensing units. The following refrigerants can be used: Honeywell Solstice N40 (R448A) GWP 1273 • Dupont Opteon XP40 (R449A) GWP 1397 They are replacements for R-22, R404A,…