Chilled Water Cooling Coil Selection

York offers a broad selection of high efficiency commercial hvac coils for hot water or steam heating and chilled water or direct expansion air conditioning.

Chilled water cooling coil selection.

We design to avoid this. The delta t was 10 degrees 54. Typical chilled water coil 500 fpm. Key decisions for coil selection dynamics of heat.

We offer a complete line of hvac heating and cooling coils for all your replacement and new construction needs. For example it was once common for chilled water to be 44 f supply temperature and 54 f return temperature. This allows the return water to temper the warmest entering air getting it closer to its set point prior to leaving the last row where it will see the coldest supply water temperature. Properly protect water coils from freezing when necessary agenda water and air velocity ranges coil selection examples chilled.

In these cases the cooling coil cannot perform as much cooling. In many cases higher delta t results in a higher average temperature of the chilled water as it goes through the cooling coil at your load. Water coils need to be piped for counter flow with the return being on the entering air side of the coil and the supply being on the leaving air side of the coil. Rae coils is your one stop shop for everything coils.

Coil performance can even influence the efficiency of the chiller. Understand the balance of coil face area airside pressure drop and waterside pressure drop when selecting a coil 5. Whether it s a basic duct booster coil or a custom coil we can meet all of your specifications with accuracy ease and at a competitive price. Standard and custom designs are available for new and retrofit installations.

Evaluate water coil selection choices at various water temperatures and flow rates 4. Casing options include flanged slip and drive end plates only and inverted side plate flanges in galvanized stainless steel and copper materials. Most chilled water coils have air entering the system at a temperature ranging from 75 f to 95 f return or outside air while chilled water enters the coil at a temperature around 42 45 f. With options that include copper fins and stainless steel casings our coil units help to power the broadest line of air handling systems in the industry.

Cooling coils are an integral part of the chilled water system too. Typical hot water coil 600 700 fpm. Chilled and hot water coils chilled and hot water coils are available in 1 5 8 1 2 and 3 8 inch od copper tubes with aluminum or copper fins. This is called moisture carry over.

The extent to which coils raise the chilled water temperature dramatically affects both capital investment in chilled water piping and pumping power.