Emerson Equivalent Precision Air Conditioner for Computer Room Data Center

Product Overview

Description

Why Need Precision Air Conditioner

1- IT hardware is very sensitive to changes in temperature or humidity. A temperature/humidity swing can create huge cost lose:

• Temperature variations can alter the electrical and physical characteristics of electronic chips and other board components, causing faulty operation or failure.


• High humidity can result in tape and surface deterioration, head crashes, condensation, corrosion, paper handling problems, and gold and silver migration leading to component and board failure.


• Low humidity greatly increases the possibility of static electric discharges. Such static discharges can corrupt data and damage hardware.

2- Standard comfort air conditioning is usually no dedicated humidity control and the simple controllers cannot maintain the set point tolerance required for temperature, allowing potentially harmful temperature and humidity swings to occur.

 

3- Precision Air Conditioner / Precision Air Conditioning Unit is designed for close temperature and humidity control (±1°C and ±3-5% R.H). It provides high reliability for year-round operation, with the ease of service, system flexibility and redundancy necessary to keep the technology room up and running 24 hours a day.

Precision Air Conditioner VS Comfort Air Conditioner

	Comfort Air Conditioner	Precision Air Conditioner
1. Physical Index
Operation Ambient Condition	-5~35oC	-35~42oC
Temperature Control	±3~5°C	±1°C
Throttling	Capillary Tube	Thermal Expansion Valve
Air Outlet Temperature	6~8°C <(13.2°C dew point of 24°C, 50%)	13~15°C >(13.2°C dew point of 24°C, 50%)
Humidity Control	Dehumidification Only	±3-5%
Air Exchange Rate	5-15times/h, small air flow	>30times/h, big air flow
Air Clean Quality	Simple	0.5μm particle<18000/L
2. Functions
Post-heater	No	Yes
Humidifier	No	Yes
Control	Simple Scale Control	PLC, RS485
Alarm	No	Yes
Annual Running Time	1000-2500hrs	8760hrs
Design Lifetime	5 years	>8 years
Recover from Power Outage	No	Yes
Redundancy	No	Yes
3. Energy Efficiency
Sensible Heat Ration (SHR)	0.6-0.7	0.95-0.99
Typical Compressor EER	2.9	3.3
Energy Consumption Ratio	>1.5	1

 

Product Feature

• Dehumidification, Humidification, Heating, Cooling all in one unit


• Precision control: ±1oC temperature control, ±3-5%RH humidity control


• Large air flow, high sensible heat ratio(SHR=0.95-0.99)


• Washable air filter & clean air quality; Optional UV, Ozone Generator available


• 365 days x 24hours non-stop operation, all season around


• PLC Touch Screen Control, equipped with standard RS485 communication interface, support remote real time monitoring and control


• Reliable Parts & Components:
  
  
  
  • Panasonic/Dakin brand compressor, long life time
  
  
  • Schneider electrical components
  
  
  • SIEMENS PLC & Touch Screen
  
  
  • Emerson refrigeration fitting
  
  
  • E+E temperature & humidity sensor
  
  
  
  


• Separated electrical components chamber, easy to maintain


• Multiple control & protection functions:
  
  
  
  • Automatic temperature & humidity control
  
  
  • Automatic self detection
  
  
  • Delay start & stop protection
  
  
  • Over current, over load, high voltage, low voltage protection
  
  
  • Lack phase, wrong phase protection
  
  
  • Low & high pressure protection
  
  
  
  

Technical Specification

Brand of Components

Components	Brand
Compressor	PANASONIC/DAKIN Japan
Temp. & RH Sensor	E+E/Austria
Contactor & Relay	Schneider/France
PLC & Touch Screen	SIEMENS/GERMANY
Evaporator	FENGREN/China
Condenser	FENGREN/China
Thermal Protector	CHINT/China
Gas Filter	EMERSON/USA
Expansion Valve	EMERSON/USA
Pressure Controller	DANFOSS/USA
Pressure Gauge	JIANLONG/China
Supply Fan	CP/CHINA
Exhaust Fan	CP/CHINA
Electrode Humidifier	TONGDA/CHINA
Heater	JIANGYIN/CHINA
Metal Casing	KAWASIMA/CHINA

 

Structure Design

User's Site Picture

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