VRV Basic Operation Guide - Daikin AC
EGVUSE09-07C_a EDUS 39 - 600 - F3. Engineering Data Engineering Data VRV Systems Basic Operation Guide Engi- AMERICAS. 1645 Wallace Drive, Suite 110. Carrollton, TX75006. 2007. DACA EGVUSE09-07C Daikin AC (AMERICAS), AMERICAS INC. Printed in 09/2007 K AK FS. DACA EGVUSE09-07C_a VRV Systems Basic Operation Guide 1. Explanations of P-H Diagram (Refrigerant Characteristics Table) ........................................ . 2. 2. Concept of Basic Refrigeration Cycle ........................................ ........................................ ..... 3. 3. Points of Refrigerant Control of VRV System ........................................ ................................. 4. Cooling 4. Heating Operation ........................................ ........................................ ........................... 5. Compressor Capacity Control.
For single refrigerants such as R22 and R134A, the isothermal line has no gradient in the saturated area, that is, the saturation temperature under certain pressure is the same at both the liquid side and the gas side. For mixed or blended refrigerants such as R407C and R410A, in which multiple refrigerants with different boiling
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