Free Cooling Unit

It is proposed for BTS sites where the acceptable inside temperature is 50 Deg C. The design is suitable for following combination of equipments within a shelter. Total Heat load of site would be approx. 3500 Watts. (12000 BTU)

Description

Specifications

S NO

Description

Specification

OUTLET UNIT

 

1

Size

380 (H) x 690(W) x 325 (D)

2

Fan Type

Backward Curved

3

Fan Model /Make

225 Dia – 2 Nos / Delta/ eqvt.

4

Louvers

Gravity Louvers

5

Fan Power Supply

48 VDC+/- 10%

6

Operational Air Flow

770 x 2 CFM

7

Input Power

Total 200 Watts

8

Enclosure

GI Powder Coated

INLET UNIT

 

1

Size

450 x 450 MM

2

Filter Type

Washable Non-Woven HDPE

3

Filter Efficiency

80% Down to 20 Micron

4

Filter Size

400 x 400 mm

5

Enclosure

GI Powder coated

6

Rain Protection

Fixed Rain Protection Guard

7

Louver

Gravity Type

8

Insect protection

Bird screen

 

 

 

CONTROLLER UNIT

 

1

Type

Microprocessor control

2

Alarm

HT ,Fan Fail  and probe fail

3

Display

Room & Ambient temperature, RH

4

Alarm Type

LED and Potential Free contacts

5

Temperature Sensors

NTC – 3 meters each

6

RTC

In-built 

7

DC monitoring

Yes. Range settable

Features

   48 V DC Operated Controller

  • LED display for healthy /fault
  • Alarm with Potential free NO/C/NC Contacts
  1. High temperature alarm
  2. Fan failure Alarm
  3. Sensor failure alarm
  • Reverse polarity Function.
  • LED display.
  • Variable temperature Fan speed controller, thus decreasing power consumption & making it highly efficient.
  • Current sensor to detect fan failure.
  • Voltage protection against fluctuation of loads.
  • Factory settable parameters.