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How many RRU supported in one DUG?

Between 2 and 5 RRU's are supported by one DUG. The actual number varies based on the configuration of the DUG and the intended application for the system.


What is the difference between vrv system and chiller?

Chiller uses chilled water while vrv uses refrigerant directly


What causes high pressure in chiller system?

dirty coil


Why must water be circulated through a chiller during a refrigerant evacuation?

When evacuating refrigerant from a chiller system, circulating water through the chiller helps dissipate the heat generated during the evacuation process. This prevents the chiller components from overheating and ensures efficient and safe evacuation of the refrigerant. It also helps maintain the chiller's operational efficiency.


What is RRU in telecom cell site?

RRU the Remote Radio Unit is a radio transceiver capable of handling multiple of 8 mobile subscribers calls. This is called RRU as this unit is generally installed in towers and are controlled by a controller placed inside a closed shelter on the ground nearby the tower. The connection between the RRU and the controller is generally optical. The RRU and the controller forms the BTS or Base Transceiver Station that is widely used in cellular communication.


What does a flow switch do in a chiller?

A flow switch in a chiller detects if there is enough flow of cooling water through the system. If the flow drops below a certain threshold, it can trigger an alarm or shut down the chiller to prevent damage from overheating. The flow switch helps ensure that the chiller operates efficiently and safely.


How water chiller works?

Water cooled chiller work on principal that water is circulated in condenser for removal of heat from the system and refrigerant gas is thus condensed in condensor.


What preventative maintenance do chiller service companies offer?

Preventive maintenance for chiller service companies offer Cleaning, Monitoring pressure and the temperature and then general system testing.


Wiring system for use in supplying a chiller unit in a farm diary?

The wiring system in all probability will be a three phase system.


What is the different between chiller and ductable system?

The air conditioning machine that cools the water is called a chiller, and it will be located in a dedicated machinery area somewhere in the building, on the roof, or outside.


If a comfort control system also supplies heat the heaters are normally located where?

chiller


What is negative flow and positive flow in chiller plant?

Negative flow in a chiller plant refers to the flow of chilled water returning to the chiller plant. Positive flow refers to the flow of chilled water leaving the chiller plant to cool the building or process. Proper flow direction is crucial for efficient operation of the chillers and the overall system.