Shanghai Anneng Fan Co., Ltd.
Main products:EC Circular Inline Fan,EC Fan,DC Fan,AC Forward Fan,DC Axial Fan
Contact Us
  • Contact Person : Mr. king roland
  • Company Name : Shanghai Anneng Fan Co., Ltd.
  • Tel : 86-21-62298368
  • Fax : 86-21-51714668
  • Address : Shanghai,Shanghai,Roon106,Bulding 3, No.720,Huajiang Road,Jiading District.
  • Country/Region : China
  • Zip : 200062

Free cooling unit controller

Free cooling unit controller
Product Detailed
1: energy saving 2: 48VDC input, auto control, 3: multi functions option 4: fan and air conditioner link control

System monitor:



Analog input

Outdoor temperature

Indoor temperature and humidity

Digital input

1# AirCon conditioner switch state 

2# AirCon conditioner switch state

FCU fan switch state 

Mains state 

Power supply low voltage

Differential pressure gauge state  ( optional )

Smoke alarm ( optional )

Other reserved

Digital output

1# AirCon switch  2# AirCon switch

FCU fan switch      

Reset control for smoke sensor (optional)

Other reserved

Data communication interface for supervision

RS232 port for computer connection ( optional)

8 dry contactors  (optional)


LCD local display


4 buttons available

Temperature speed control

0-100% speed control according to room temperature change

Data storage

1 month indoor temperature and outdoor temperature storing each 20 minutes ( optional)

Wireless monitor by GPRS and CDMA 




Free cooling unit controller

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