WATER COILS
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The ability of an HVAC unit to heat or cool a room is largely dependent upon the coils inside the unit itself. Without these coils, temperature and airflow could not be regulated. In units that use water coils, hot or chilled water moves to heat or cool an environment, instead of a mix of air and refrigerant liquid movement.
It is well-known that exposure to water causes metals to rust, break or produce mold and fungi. Since water coils operate by using water to change temperatures, these processes can happen fast leading to lower performance, making maintenance and replacement all the more important.
Chilled Water Coils
As the name implies, chilled water coils are typically used to cool and remove moisture from an environment. The cold water passes through the tubes cooling them and the fins, when hot air passes by the coils surface it is cooled, and then the air handler works to distribute the cold air into the inside environment and to dissipate some of the heated air to the outside.
Systems that use chilled water coils are typically used in industrial and commercial buildings, especially in places with refrigeration systems like supermarkets.
Hot Water Coils
Hot water coils are used to heat outside air before forcing it inside. They are a type of heat exchanger that uses hot water from a boiler. Hot water moves through the tubes cooling heating them and the fins, when the outside air flows through it is heated and pushed inside.
Hot water coils from Rahn Industries are typically built to withstand 300°F temperature and 400 psi of pressure. Coils up to 40ft long are made from seamless copper, and the casing of the coil is made from 16-gauge galvanized steel, making them exceptionally durable and long-lasting.
This type of system is commonly used in commercial and industrial buildings, and also in roof top units.
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PRODUCT DETAILS 
DESCRIPTION FEATURES & BENEFITS
- Withstand up to 650 psi maximum operating pressures
- Withstand a maximum temperature of 500 degrees F.
- Available in single or multiple circuits
- Available in various shapes
- Can be customized
SPECIFICATIONS
- Aluminum Fins
- Standard fin thicknesses available: .006, .0075, .010 +/- 5%. Custom thickness available
- UNS 12200 seamless copper tubes and headers
- Gas brazing, using fillet rod material of a minimum 5% silver shall be used for all not-ferrous tube joints to headers and connections
- 16-gauge Galvanized steel coil casing and endplate
USES
- Refrigeration
- Commercial
- Industrial
DESCRIPTION
Rahn Industries Water Coils are made with the best materials, and the highest quality standards. They can be fully customized to the customer’s needs.
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