Vrf/Vrv Systems and How To Use Them

Various Central Split Systems

Generally, central split systems, abbreviated as VRF, MULTI V, VRV, or GHP, consist of an external condenser (usually installed on the roof) and a number of internal panels. It is possible to select a split panel type and adjust the temperature in each area of the building.
A central split system or VRF is usually used in large buildings and commercial centers.
The Source of energy for this equipment can be three-phase power or utility gas depending on the type or brand of the equipment.
Since SCROLL variable speed compressor and variable speed fan drive are used in central split system condensers, the coefficient of performance (COP) is remarkably increased (about 4), and therefore this equipment can generate more heating/cooling with smaller energy consumption.
Today, in new central split systems (4^th generation) in addition to improvement of the cooling unit, energy consumption, and required control systems. Energy absorption fluid is used as the middle fluid to provide continuous heating.

Challenges of Selecting a Central Split System (VRF or VRV)

High cost of 100% heating system or complete heat pump in VRF or VRV
External condensers with suitable capacity for unit apartments are not available and using larger condensers results in increased power consumption cost
High cost of joints, three-way distribution joints, and copper pipes, which sometimes cost up to 25% of the initial price of the system
The invisibility of the gas leaking from the copper pipe network distributed across the building and the necessity of using a gas detector to detect the potential leakage of coolant gas from the system
The coolant gas may freeze in wintertime in the heat exchanger of the plan (except for 4^th generation VRFs or VRVs)

vrf system

Generally, central split VRF or VRV systems are suitable for places where 100% heating is not needed, especially during the night (due to the high cost of the 100% heating system and the high cost of electrical power consumed by the 100% heat pump), and the central split system is used to cool/heat the building as an uninterrupted space and there is no need to separate operation costs for various units (like hotels in the southern region of the country and office buildings, commercial centers, shopping centers, and luxury malls in different countries.

vrf system

If the central split system (except for 4^th generation VRF) is used in regions with cold winters, the coolant might freeze in the heat exchanger of the system during the cold seasons of the year.
The maximum height between the central condenser and the lowest split is about 100m; the maximum gap between the central condenser and the furthest split panel is about 200m, and the maximum length of the piping system is about 1000m.

vrf system

Placing an Order and Warranties for VRF/VRV Systems

Offering the best price guarantee for all products, the prices for VRF/VRV Systems presented by DamaTajhiz are up-to-date and discount-included (see Best Price Guarantee at DamaTajhiz.com).
At DamaTajhiz.com, we provide all the information you need, as well as guaranteed unbeatable prices, for several models of VRF/VRV Systems from reliable manufacturers, with original warranties, to bring you the thrill of an ideal, intelligent purchase.

You can also read the article WHAT IS A VRF SYSTEM AND HOW DOES IT WORK? for more information.

Final speech

The specialized collection (Damatajhiz) (the first and most reliable authority in the country in the field of building facilities equipment and all air conditioning devices), offers you all kinds of sand filters and hundreds of other products, guaranteeing the originality of the product, valid warranty, and reasonable price. In addition, if you have any questions about choosing and comparing the brands of this product, you can get free advice from the heating equipment experts.

In Iran, the first and most famous specialized group in the field of building installation equipment, air conditioners, and all equipment for swimming pools, saunas, and jacuzzis since 2004, DamaTajhiz is a specialized group. Refer to the time of this group. For more information, you can get advice from the experts of DamaTajhiz Engineering and Production Company by calling 021-88822550.

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