View Profile View Forum Posts View Forum Threads Professional Member* Join Date Jul … type (100 kg). 06-09-2018, 09:07 PM #3. Any presence of air or other foreign sub-stance in the refrigerant circuit could result in abnormal pres-sure rise or rupture, resulting in injury. 4.All the precharged gas is for the outdoor heat exchanger not for the additional feild pipe added by the engineers. Monitor VRV system using Daikin's built-in state-of-the-art methodology. 5.While still in vaccum with the right calculations charge the gas and you should not have any worries. 1. calculation of additional refrigerant charging amount 4. Brian8383. About VRV. When Daikin launched the VRV air conditioning system in 1982, it introduced the world’s first use of variable refrigerant flow control. The refrigerant charge of the system must be less than 100 kg. • When installing or relocating the system, keep the refrigerant circuit free from substances other than the specified refrigerant (R410A) such as air. 2. record of additional refrigerant charge amount and result of leak check operation request for the indication of additional refrigerant charging and leak detection operation result be sure to fill out the blanks, which are needed for after-sale services. Pipe size from the top of my head: 1/4 - 0.0025 g 3/8 - 0.012 g 1/2 - 0,056 g.....(check your booklet supplied by DAIKIN) The RXYQ-P7 units can be combined with Daikin VRV indoor units for air conditioning purposes, and suitable for R410A. Table of contents Installer and user reference guide 3 RXMLQ8 + RXYLQ10~14T7Y1B* VRV IV system air conditioner 4P543427-1A – 2020.10 11.2.5Symptom: The … Daikin’s Commission With Confidence service includes the supply of R410A refrigerant trim charge is guaranteed as part of a commissioning package for a set fee. › Lower Global Warming Potential (GWP): only 1/3rd of R-410A › Lower refrigerant charge: 15% less compared to R-410A › Higher energy efficiency › Single component refrigerant, easy to handle and recycle This means that in case the calculated total refrigerant Refrigerant charge is equal to or more than 209 lbs. Display system ef­ficiency on visual charts and graphs. Page 30: Calculating The Additional Refrigerant Charge 14 .2 . Calculating the additional refrigerant charge Parameter [D] Indoor unit FXMQ type NOTE capacity The refrigerant charge of the system must be less than 210 lbs. This technology circulates only the minimum amount of refrigerant needed at any one time and enables individual climate control of air conditioning zones. Depending on the amount of charge you may have to put it in additional charge mode. In times where the VRV market is growing fast, this enables us to do our business in a sustainable way, while securing future growth. The automatic refrigerant charge function automatically determines the optimal amount of refrigerant to be charged. So you can enjoy complete confidence from tender to installation of a VRV system, while ensuring your … Table of contents Installer and user reference guide 2 RXYQQ8~20U7Y1B VRV IV Q+ series heat pump 4P546229-1A – 2020.10 Table of contents 1About the documentation 6 1.1About this 30: Calculating the Additional refrigerant charge function automatically determines the optimal amount of charge you may have to it... Additional refrigerant charge is equal to or more than 209 lbs still vaccum. 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