FAQ
Most frequent questions and answers
Preconditioning is a process used to prepare feed water for a system before it enters the boiler. One of the most common methods of preconditioning is water softening, which is necessary when feed water has high hardness levels. Chemical conditioning inside the boiler is not always sufficient to eliminate high hardness and other impurities, which is why the excess hardness must be removed through a softening circuit before the water is fed into the boiler.
The ion exchange method is commonly used to remove hardness from water and turn it into soft water. There are various types of preconditioning techniques available depending on the water’s characteristics.
Many people mistakenly interpret VRV and VRF as two different HVAC technologies. However, they are actually two different terms used to describe the same type of HVAC technology. The first VRV HVAC systems were invented by Daikin in the early 1980s and were based on inverter technology compressors. Daikin had registered the VRV term, which stands for Variable Refrigerant Volume, as an official trademark.
Other companies use the term VRF, which stands for Variable Refrigerant Flow, for similar HVAC systems. VRF is now the more common term for these types of systems. The purpose of developing VRV/VRF systems is to meet the needs of smart buildings. These modular systems provide full independent control in all types of buildings, from multi-story buildings to single villas. They offer high energy savings thanks to inverter technology and variable gas flow.
Although both VRF and multi-split systems can be connected to one outdoor unit with multiple indoor units, there are some differences between them.
In VRF systems:
- Multiple indoor units can operate with a single supply and return copper pipeline.
- There is no limit on outdoor unit capacity or the number of indoor units. Copper piping can be done at long intervals.
- The system can perform both cooling and heating simultaneously depending on how it was designed.
In multi-split systems:
- Up to 5-6 indoor units can be connected at most.
- There should be a copper pipeline from all indoor units to the outdoor unit.
- Copper piping can be done in short intervals.
- The system can only perform cooling or heating at a given time.
While it may be tempting to choose an HVAC technician who offers a cheaper installation, it’s important to consider the potential risks involved. Only companies can provide equipment warranties, and if the technician is not an official service partner of that company, any technical problems that arise may result in the client having to pay all the expenses themselves, even if the warranty period is not over yet.
If the technician can somehow guarantee their services, it may be possible to choose the cheaper option, but it’s up to the client to weigh the potential risks against the cost savings. Ultimately, choosing an HVAC technician should involve considering multiple factors, not just cost, to ensure the best outcome for your needs.