Daikin FXZQ-MVE Introduction Manual page 24

6 Main features
6-6 Simple and rapid installation
6-6-5 Unified REFNET piping
• The unified Daikin REFNET piping system is especially designed for simple installation
• Only 2 or 3 main refrigerant pipes are necessary per system and unlike conventional water based schemes, VRV II systems do not require strainers,
stop valves, 2 and 3 way valves, oil traps, anti freeze treatment or air purging.
• The use of REFNET piping in combination with electronic expansion valves, results in a dramatic reduction in imbalance in refrigerant flowing
between indoor units, despite the small diameter of the piping.
• REFNET joints and headers (both accessories) can cut down on installation work and increase system reliability.
• Compared to regular T-joints, where refrigerant distribution is far from optimal, the Daikin REFNET joints have specifically been designed to optimise
refrigerant flow.
REFNET joint Attached insulators for REFNET joint
6-6-6 Increased installation flexibility
Outdoor units can be installed far back from former location.
Duct Duct
6-6-7 High external static pressure : 6mm H
Daikin now offers high external static pressure as standard to meet requirements of indoor installation.
6-6-8 4-way piping connection
VRV II series not only offer the possibility to run piping from the front, but also from the left, right or bottom, thus providing greater freedom of layout.
Front
Left
• Introduction
REFNET header
O
2
Bottom
Right
• Systems • Introduction
Attached insulators for REFNET header REFNET joint T-joint
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