变制冷剂流量（Varied Refrigerant Volume，简称VRV）空调系统是一种冷剂式空调系统，它以制冷剂（以冷媒为载冷剂，如：R22、R410A）为输送介质，室外主机由室外侧换热器、压缩机和其他制冷附件组成，末端装置是由直接蒸发式换热器和风机组成的室内机。 VRV空调系统的优缺点. 1、优点： ①设计安装方便、布置灵活多变、占建筑空间小、使用方便、高效节能、运行成本低。 ②控制方式先进，系统具有的自动诊断功能和先进的管路连接技术（系统本身连接部件少）， …

Refrigerant pipe size and allowable pipe length. 1.1. General information. refrigerant R410A requires strict cautions for keeping the system clean, dry and tight. Clean and dry: foreign materials (including mineral oils or moisture) should be …

2019年1月28日 · Shop Drawings: Show layout of refrigerant piping and specialties, including pipe, tube, and fitting sizes, valve arrangements and locations, wall and floor penetrations, and equipment connection details. Show interface and spatial relationships between piping and equipment. Refrigerant piping indicated on Drawings is schematic only.

2024年9月9日 · VRV：Variable Refrigerant Volume，可变冷媒流量空调系统。 由日本大金（Dakin）公司于1982年末首先推出，近几年得到不断发展。 VRV系统主要由室内机、室外机、冷媒管以及控制部分组成。 室内机是VRV系统的末端装置部分，它是一个带蒸发器和循环风机的机组，与我们常见的分体空调室内机的原理完全相同。 1、室内机形式： （1）天花板嵌入式. （2）天花板内藏风管式. （3）壁挂式. 室外机是VRV系统的关键部分，它主要由风冷冷凝器、压缩机 …

2024年3月1日 · VRF/VRV systems utilize a 2 or 3-pipe system (liquid line, hot gas line, and suction line) all of which must be insulated to maximize their thermal performance. Since VRF/VRV systems are designed to operate at service temperatures from below 32°F [0°C] to +248°F [120°C], most system manufacturers require a continuous service temperature of ...

2019年12月25日 · （1）VRV（Variable Refrigerant Volume）系统 为变冷媒流量多联系统，即控制冷媒流通量并通过冷媒的直接蒸发或直接凝缩来实现制冷或制热的空调系统。 VRV是依赖于机电方面的变频技术而产生的空调系统设计安装方式。

VRF systems operate on the direct expansion (DX) principle meaning that heat is transferred to or from the space directly by circulating refrigerant to evaporators located near or within the conditioned space. Refrigerant flow control is the key to many advantages as well as the major technical challenge of VRF systems.

2018年3月31日 · The document provides instructions for installing outdoor units and REFNET pipe systems for VRV heat pump and heat recovery systems. It includes guidelines for installation layout, foundation drawings, piping connections, and safety considerations. Diagrams show recommended spacing for outdoor unit installation in single or serial configurations.

Never increase suction gas pipe and HP/LP gas pipe. The pipe thickness of the refrigerant piping shall comply with the applicable legislation. The minimal pipe thickness for R410A piping must be in accordance with the table below. In case the required pipe sizes (inch sizes) are …

This document provides installation instructions for VRV heat pump and heat recovery outdoor units. It discusses the center of gravity and foundation requirements for different unit models. It also covers the REFNET pipe system layout examples, components, and installation including joints, headers, and multi-connection piping kits.