Description
Sebuah jangka panjang non-ozon pengganti R-22 dalam sistem pendinginan komersial rendah dan menengah suhu menipis. Cocok untuk evaporator ekspansi langsung. Jangan gunakan dalam sistem yang menggunakan evaporator banjir. Untuk peralatan baru dan retrofits.
| Item | Specification |
|---|---|
| ASHRAE # | R-422D |
| Class | HFC |
| Refrigerant Type | Blend |
| Typical Lubricant | Mineral Oil |
| Substitutes | HCFC-22 |
| Contains | HFC-125 (65.1%), HFC-134a (31.5%), HC-600a (3.4%) |
| Glide | Moderate |
| Notes | Lower capacity. Can replace HCFC-22 in many cases without having to change compressor lubricant. May be used with alkylbenzene, mineral oil and POE lubricants. If inadequate oil return is observed for AB addition of POE may be needed. Genetron 422D can, in most cases, be used with existing HCFC-22 thermostatic expansion valves.Larger valves may be needed in cases where the R-22 valve is near its maximum capacity.Lower discharge temperature than HCFC-22, which may extend compressor longevity. |
