WebAn R-502 Replacement for Limited Condensing Capacity Systems. Freon™ 408A (R-408A) refrigerant is a hydrochlorofluorocarbon (HCFC) option designed to replace the … WebAug 20, 2024 · Connect the VCC & GND pin of R502/R503 to Arduino 3.3V & GND pin. Similarly, connect the Tx (Yellow Wire) & Rx (Green Wire) to D2 & D3 OF Arduino …
Refrigerant 502 C3HCl2F7 - PubChem
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R507 Product Information - A-Gas
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