HVAC & Air-conditioning
(Brand -General, Career and Cooltech)
10.1. Split Type-(Wall Mount, Cassette, Ceiling)
10.2. Ducted Type-(High Static Outdoor, Indoor, Roofto Package Outdoor)
10.3. VRF System-(Indoor & Outdoor)
10.4. Scroll Chiller-(Water Cool, Air Handling Unit, Air Cool)
Split Air-conditioning Systems
Split type air conditioning systems are one-to- one systems consisting of one evaporator (fan coil) unit connected to an external condensing unit. Both the indoor and outdoor units are connected through copper tubing and electrical cabling.
The indoor part (evaporator) pulls heat out from the surrounding air while the outdoor condensing unit transfers the heat into the environment.
Advantages of using Split Air-conditioners
★ Low initial cost, less noise and ease of installation;
★ Good alternative to ducted systems;
★ Each system is totally independent and has its own control.
A multi-type air conditioning system operates on the same principles as a split type air- conditioning system however in this case there are ‘multiple’ evaporator units connected to one external condensing unit. These simple systems were designed mainly for small to medium commercial applications where the installation of ductwork was either tooexpensive, or aesthetically unacceptable. The small-bore refrigerant piping, which connects the indoor and outdoor units requires much lower space and is easier to install than the metal ducting. Each indoor unit has its own set of refrigerant pipe work connecting it to the outdoor unit.
Advantages of Multi-splits
★ The fact that one large condenser can be connected to multiple evaporators within the building reduces and/or eliminates the need for ductwork installation completely.
★ Multi-splits are suitable for single thermal zone (defined below) applications with very similar heat gains/losses.
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