HVAC engineers

Chiller Installation Requirements. 1. Foundation & Mounting ⇒ Concrete Plinth/Base: Should be flat, leveled, and minimum 150 mm above FFL.  Designed to take dead load + dynamic load of the chiller. Ensure plinth length/width matches OEM mounting dimensions. ⇒ Vibration Isolators:  Use spring isolators or neoprene pads below the chiller to reduce vibration and structure-borne noise. For rooftop units, include seismic restraints if required by local codes. 2. Piping Arrangements ⇒ Chilled Water Lines Inlet & Outlet properly labeled.  Use flexible rubber bellows at inlet/outlet to absorb vibration and thermal expansion. Provide isolation valves, y-strainer, and flow switch. Install thermometers & pressure gauges at inlet and outlet for monitoring. Ensure correct pipe supports as per spacing schedule to avoid sagging. ⇒ Condenser Water Lines (for water-cooled only) Similar provisions as above.  Ensure proper sloping and venting. Include chemical dosing point,...

WHAT IS A CHILLER? A Chiller is a machine that removes heat from a liquid (usually water or glycol mix) via vapor-compression or absorption refrigeration. The chilled water is circulated through AHUs or FCUs to absorb heat from the building, making it a central part of HVAC systems. MAIN TYPES OF CHILLERS 1. Based on Heat Rejection: ⭐Air-Cooled Chiller  Heat is rejected to ambient air via condenser fans. No cooling tower needed. Higher power consumption (low efficiency). Used where water availability is limited (like UAE rooftops). ⭐Water-Cooled Chiller  Heat is rejected to condenser water, then to a cooling tower. Higher efficiency and longer lifespan. Requires more maintenance (cooling towers, water treatment). Ideal for large-scale commercial or industrial applications. 2. Based on Refrigeration Cycle:  →Vapor Compression Chiller  Commonly used. Uses mechanical compressor (screw, scroll, centrifugal). →Absorption Chiller  Uses heat source (steam, hot water, g...