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Netis wf 2111 driver


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Version Description Date Size Language Download; netis WF Driver for Windows. Support Windows 10//8/7/Vista/xp: The netis WFS Mbps Wireless N USB Adapter is designed to connect a desktop or notebook computer to a wireless network and access high-speed Internet connection. Apr 28,  · The wf driver for windows. Netis wf wi-fi, usb, n, /. Netis wf windows driver – uploaded on, downloaded 17 times, receiving a /5 rating by 31 users. This equipment generates, 10, netis wf online chatting.


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The Netis WF Mbps Wireless N USB Adapter is designed to connect a desktop or notebook computer to a wireless network and access high-speed Internet connection/5(72). This package contains the files needed for installing the Netis WF USB Network Adapter Driver. If it has been installed, updating (overwrite-installing) may fix problems, add new functions, or. Global(English) © Netis Systems Co., Ltd. All rights reserved.
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Emerson Comprehensive Chiller Monitoring System

We recently wrote about water cooling for server cabinets – such solutions were presented almost simultaneously by Knurr and IBM. In addition, several other types of climate control systems have been used for quite some time based on the circulation of chilled water in heat exchangers and cooling hot air on them. These are centralized units for buildings, combined with a forced ventilation system, and indoor units, also coupled with ventilation, for example, NetworkAIR CM from APC. Most of all, water cooling systems are adapted for the needs of server rooms, made in the form of standard 19 “cabinets, for example, the same APC offers NetworkAIR FM and NetworkAIR IR. They are intended for installation between cabinets with appliances to reduce the concentration of heat released in one place. Complex cooling requires complex management.

So, the Emerson Network Power Liebert HIROSS company with an official press release presents the @connectivity software package, which allows you to increase the energy efficiency of complex water cooling machines (chillers) by organizing feedback between indoor air conditioners and Matrix chillers with free cooling modules.

Principle of operation. The hydronic module of water-cooling machines supplies refrigerant to several air conditioners. The temperature of the supplied liquid depends on the load on the air conditioners, at which the maintenance of a stable temperature in the room is achieved. However, an intelligent chiller control system is required to maximize system efficiency in a variety of climates. For example, Emerson Matrix chillers can smoothly regulate the power of the compressors (there are 2 to 4 compressors per chiller) in the range from 50 to 100% of their nominal power, while maintaining a stable water flow. In addition, they can operate mechanical and free cooling at the same time as well as completely deactivate the compressors if free cooling is sufficient. In CW (chilled water) air handling systems, each air conditioner is equipped with a control valve that supplies a certain amount of liquid to the cooling circuit to reduce the thermal load on the equipment. For additional energy savings and efficiency gains, the chiller controller must be connected to the indoor air conditioning controllers to improve the efficiency of both systems regardless of load.

For example, a 400 kW chiller is installed, which normally cools water from 15 ° C to 10 ° C, and four internal air conditioners with a capacity of 100 kW each. Without @connectivity, when the temperature load drops, the chiller continues to operate at full capacity and supplies water at a temperature of 10 ° C, while the air conditioners will bypass some of this water to the return pipe through the control valve. With @connectivity, air conditioners inform the chiller microprocessor of changes in conditions in the manned room via a dedicated hardware interface. In particular, the message may contain a request to increase the set cooling temperature to 15 ° C. In this case, the air conditioners will operate at full capacity, but at a higher temperature of the coolant, which will lead to energy savings while maintaining the temperature balance. Further, an increase in the set temperature of cooling the liquid leads to an increase in the boiling point of freon in the evaporator of the chiller, which leads to an increase in the efficiency of the cooling cycle and a decrease in energy consumption.

However, the maximum effect is achieved in the presence of a free cooling system: the higher the temperature of the supplied liquid, the more hours the system will operate in free cooling mode, and the less power will be consumed.

An Emerson air conditioning system was installed for internal testing in a machine room with a rated temperature load of 500 kW. It included a chiller with a free-cooling module, 5 Himod air conditioners and @connectivity software. As a result, the use of the Supersaver mode allowed to reduce the annual energy consumption by 15% compared to the same system without the software package.

In addition to the main component of @connectivity – the Supersaver mode – this complex is equipped with a number of other useful functions. For example, a passive load optimization system allows you to increase the set temperature of the liquid cooling in the chiller to save energy, if this allows you to keep the air humidity within the maximum allowable for the given air-conditioned room. In addition to a temperature sensor, air conditioners are equipped with humidity sensors. As soon as the humidity reaches a certain value, the software package will lower the temperature of the liquid cooling point in the chiller. This function can be configured in two ways, according to the needs of a particular room. For example, you can automatically lower the temperature of the cooling point when the air conditioner dehumidification mode is activated, when a certain relative humidity in the room is reached, or when any of these conditions are met. If the software lowers the temperature of the liquid cooling point, but the temperature load remains the same, excess liquid will be bypassed into the return line through the control valve.

Other @connectivity features include alarm management and automatic cooling setpoint temperature change. If the alarm system is activated, then if any air conditioner in the room fails, the software system automatically lowers the temperature of the liquid cooling point to increase the cooling capacity of the remaining air conditioners. If there are different cooling requirements at different times of the day, @connectivity can change the temperatures of the cooling points to save energy during non-peak periods.

Data from all indoor air conditioners are transmitted via a common Hirolink interface, which is responsible for processing and delivering data to a computer on which the @connectivity software package is installed. In addition, for maximum communication reliability, each air conditioner can be connected directly to a computer via a local network via the HipA interface.