ITC+ air-cooled chiller 100L (2024)

FAQs

Why is my chiller not cooling enough? ›

Check the refrigerant levels and replace them as necessary to solve this issue. Compressor failure: If the compressor has failed, the chiller won't be able to cool efficiently since it won't be able to circulate refrigerant. The compressor will need to be fixed or replaced in order to solve this issue.

The efficiency of a chiller is usually measured by its COP (coefficient of performance). The COP is calculated by dividing the cooling output in watts by the power input in watts. A higher COP means that more heat will be removed from a space for less energy input.

Two common factors that can prevent chillers from starting include loose wiring and a blown fuse/circuit breaker. Moreover, a power switch in the off state may prevent the chiller from running. Operators must check the equipment for these common problems to ensure the system runs effectively.

Capacity Range

Air-cooled chillers come in sizes ranging from 7.5 – 500 tons. Meanwhile, water-cooled chillers offer a higher cooling capacity of 10 – 4,000 tons.

High-efficiency chillers can produce chilled water using less than 0.50 kW per ton of cooling capac- ity.

For anyone familiar with chiller sizing, 2.4 GPM/ton will give you a 10F delta-T across the evaporator. For cooling tower sizing, the rule of thumb is 3.0 GPM/ton for a 10F delta-T across the tower. You may also be aware that although a cooling ton is 12,000 BTUH, a heat rejection ton is 15,000 BTUH.

Generally, temperatures of between 45 and 50 degrees are suitable for cooling equipment. Pharmaceutical uses include use of chilled water in manufacturing and cool storage. Usually, 35 to 46 degrees is the recommended temperature for refrigeration during transport and storage of most cold-chain medications.

How long does a chiller take to cool? ›

Actual cool-down time will depend on the starting water temperature, water volume, and the ambient air temperature. We have found that the chiller will cool water at a rate of about 10-12 F per hour. This allows the tub to cool from a starting water temperature of 65 F to 37 F in about 2.5 hours.

Insufficient refrigerant will cause the pressure in the system to be abnormal, resulting in a decrease in suction pressure, low-pressure alarm of the chiller, and equipment shutdown. The leakage of refrigerant can be from the compressor, condenser, filter, expansion valve and evaporator, etc.

There are several causes for a refrigerator that doesn't cool, including dirty condenser coils, poor ventilation, improper installation, faulty or dirty gasket seals, unorganized food storage, appliance location and malfunctioning internal parts.

For air-cooled condensers, dust and debris buildup on fins and fan blades can inhibit air flow, lowering the cooling capacity. For water-cooled condensers, heat transfer can be reduced by scale formation, biological growth, or corrosion.