a constant temperature and humidity system

Basic design of constant temperature and humidity ▶ Outdoor temperature and humidity condition ▶ Internal generating load ▶ Indoor temperature and humidity condition ▶ Indoor structure and intrusion heat ▶ Air flow distribution ▶ Degree of automatic control ▶ Air cleaning relationship ▶ Cooling heat source ▶ Location of machine room and power ▶ Variation of internal load ▶ Limitations of humidity conditions ▶ Heating heat source Down FLOW method Free accesses on the floor of the computer room. 1. Since air conditioned air is supplied directly to the machine, efficiency and airflow distribution are good. 2. Since air conditioning ducts are not installed indoors, efficiency and airflow distribution are good. 3. Since the entire floor is an air conditioning duct, it is easy to expand or move in the future. 4. Computer wiring work is easy. UP FLOW method It is installed in the computer room and precision measurement room to blow the room directly or by DUCT from the top of the thermo-hygrostat. 1. Pay attention to indoor airflow distribution. 2. In large systems, the working environment is prone to deterioration due to high air volume, and uniform air conditioning is not possible. 3. Air-conditioning fertilizer is slightly cheaper compared to the DOWN FLOW method. COOLING SYSTEM - AIR COOLED SYSTEM It removes heat by exchanging heat absorbed inside with outdoor air, so there is no fear of freezing in the synchronization, and maintenance management is easy.It differs depending on the type, but if the copper pipe length is more than 15m, it is difficult to use it due to oil recovery and deterioration of capability.- WATER COOLED SYSTEM (water cooling) It is a method of removing heat by exchanging heat absorbed indoors with cooled water in the cooling tower, and if management is neglected in the same period, it may freeze and can maximize cooling capacity.- GLYCOL COLOR SYSTEM (glycol type) The method of removing heat inside the room is similar to water cooling, but it is an all-weather type that uses an antifreeze called etchrene glycol to prevent freezing of drain pipes in winter.There is a risk of high pressure rise to , but we add a device to prevent this.- WATER CHILLER SYSTEM It is not a direct expansion type that removes heat by heat exchange with a direct refrigerant, but an indirect expansion type that removes heat by cooling water and heat exchange with cooled water.Cold air can be supplied indoors using DUCT, or cooled water can be supplied directly to the room for constant temperature and humidity. Air-cooled water-cooled glycol-cooled unit Facility outdoor condenser, Facility cooling tower, circulation pump, Facility dry cooler, circulation pump, Facility ventilation system Facility condensation method Facility is simple and operation management is Facility is convenient. · Initial investment costs are low . · Easy maintenance management and low maintenance costs. · The cooling efficiency is high because it is a condensation method by cooling water. · It is hardly affected by the busy outdoor conditions. · There are few restrictions on the distance between indoor and outdoor units. · All weather conditions can be used as a method of cooling the glycol using a closed condenser.· Regardless of the season, control is easy, and maintenance management is easy.· Since it is closed, there is less contamination in the auxiliary equipment.· A wide range of systems regardless of pipe length, suitable for high-rise buildings.·Gricol has corrosion resistance, scale prevention in piping , improvement of heat conductivity, and semi-permanent durability. However The point/condensation method uses air , so there is some strain on the compressor due to the outside air change . · Restricted distance between indoor and outdoor units. · There is a risk of freezing of the winter coolant and open system, so contaminants are generated in the auxiliary facility, so the failure factor is . · The initial investment cost is slightly higher than other systems.· The cooling efficiency of is reduced because the glycol solution is used.