Water Cooled Condenser High Head Pressure

The condenser fan motor and the condenser coils are the most common problems i have found with the issue of high head pressure.

Water cooled condenser high head pressure.

Use for applications with system water pressures of up to 350 psi 24 1 bar such as high rise buildings. The high water temperature and poor heat dissipation will inevitably lead to high condensation pressure. Water cooled condensers involve a heat rejection loop where condenser heat is dissipated to the environment via water. After allowing temperatures to equalize if the refrigerant pressure corresponds to a saturation temperature that equals the water temperature the fouling is on the water side of the tubes and they will need to be cleaned.

The cooling water temperature is too high and the condensation effect is poor. Having the refrigerant vapor condensed on the outside of a tube does this. A c or heat pump compressor high head pressure diagnostic faqs. As with the ambient 30 average on air cooled condensers ambient will not affect the condensing pressure on water cooled units that is why they are used.

You can expect the suction pressure to be high and the head pressure to be lower than normal because the cooling tower is still operating. 2 is there a rule of thumb regarding approximate head pressure based on inlet water temp and delta t across condenser. The cooling tower water is 5 degrees warmer than the entering chilled water. Below we list a dozen causes of high head pressure in an air conditioner or heat pump compressor motor.

When first encountering the problem of high head pressure it is essential to check the basics first. A water cooled condenser is a heat exchanger that removes heat from refrigerant vapor and transfers it to the water running through it. Here are some facts that you should know about water cooled condensers. A c or heat pump compressor high head pressure diagnostic checklist 12 causes of high head pressure at an air conditioner heat pump or other refrigeration system.

Stop the compressor and maintain water flow through the condenser while observing the refrigerant pressure in the condenser. The most common type of water cooled condensers in geothermal power plants are direct contact and surface types. V148 series three way pressure actuated valves regulate water flow to control refrigerant head pressure in systems with single or multiple water cooled condensers. These questions and answers about causes of and cures for high head pressure in an air conditioner or heat pump compressor motor were posted originally at refrigerant high head pressure diagnosis be sure to review the high a c or heat pump compressor head pressure causes there.

Water cooled condensers and chiller barrels are specialized heat exchangers. Plate type heat exchangers a special kind of surface exchanger are also possible but appear to be more common in liquid to liquid heat transfer applications. Of course other issues can cause high head pressure but these are the most common. The rated working condition of the cooling water required by the chiller is 30 35.