【Weekly Topic】【HVAC Version 20151221】
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This post was last edited by hjztbwg on 2015-12-28 at 10:44. Fresh air supply methods for fan coil units: __fresh air enters through indoor mechanical exhaust_____、___fresh air is introduced via wall openings______、__an independent fresh air system___.
Fresh air supply methods for fan coil units: _fresh air entering from outside_, _fresh air introduced through exterior wall openings_, __dedicated fresh air system__.
Outdoor infiltration of fresh air； Introduce fresh air through exterior wall openings ； Independent fresh air system
Fresh air enters naturally through gaps in the room, is introduced through holes in the wall at the back of the unit, and an independent fresh air system is used to supply air to the interior
Infiltration of fresh air and exhaust air, introduction of fresh air through wall openings, independent fresh air supply
Fresh air supply methods for fan coil units: __fresh air entering from outside__, ___fresh air introduced through exterior wall openings__, __dedicated fresh air system__.
Top exhaust, diagonal exhaust, front exhaust.
1. Replenished by air infiltrating from outside. 2. Fresh air is introduced through wall openings and enters the unit directly. 3. Indoor fresh air is supplied by a separate fresh air system
(1) Outdoor air enters naturally through gaps such as doors and windows in the room, and fresh air is supplied through mechanical exhaust systems in bathrooms and toilets. (2) Make holes in the exterior walls of the room to allow fresh air to enter directly into the fan-coil unit; the fresh air inlets should be adjustable, operating at the minimum amount of fresh air required in winter and summer, while using as much fresh air as possible during the transitional seasons. (3) Fresh air is supplied by an independent fresh air system ； The centrally treated fresh air is delivered to various air-conditioned rooms through the air supply ducts.
Fresh air is supplied by infiltrating outdoor air, or it enters the unit directly through openings in the walls; indoor fresh air is provided by a separate fresh air system
New air supply methods for fan coil units: ① Natural infiltration of outdoor air through gaps such as doors and windows in the room, along with fresh air supplied by mechanical exhaust systems in bathrooms; ② Creating holes in the exterior walls of the room to allow fresh air to enter directly into the fan coil unit; ③ Supplying fresh air through a separate fresh air system (fan coil unit combined with a fresh air handler)