With RKTPL’s Free Cooling Units, replacing or complementing the Air-Conditioner, you will:

  • Reduce the electricity bill by up to 95 %
  • Extend the life of your Air-Conditioner by more than ten times
  • Reduce the cost of service ( Near ZERO OPEX)
  • Help save the environment and provide a green company profile.

In other words, RKTPL’s Free Cooling Units are an excellent investment with a pay back time of less than three years. RKTPL’s Free Cooling Units can be controlled and monitored via the internet and can be optimized with the software to control a conventional cooling system. RKTPL’s Free Cooling Units do not require an accredited installer and requires minimal service. It can be delivered as a plug play solution, all that is needed is a hole in the wall for the intake and one for the exhaust. RKTPL’s Free Cooling Units are always delivered with a two year warranty.

Regardless of the priority for indoor temperature, for much of the year it is cold enough for Free Cooling Unit to be the right option for most equipment rooms and server rooms.

Our customers who use Free Cooling  Unit, but also have cooling equipment as a backup, tell us that these last much longer and that the number of emergency service calls are largely nonexistent, because the cooling equipment is used less than 10% of annual hours.

Equipment rooms with only cooling machines lead to costly service trips and high utility bills.See the table below for a calculation of cost of ownership between those three options over a ten year period.

Free Cooling Unit for telecom shelters

It uses the free outdoor cool air to create pressure in the equipment room through the low impulse method without creating turbulence and thus missing of the cold and hot air. As a result of the forces of nature, the hot air rises towards the ceiling. By increasing the pressure, the hot air rises just faster and leaves the room in a faster space through an exhaust grill.

Using the force of the nature, it achieves a high efficiency cooling with up to 40% less power consumption.

It is controlled by a micro controller which uses advanced control algorithms and the outdoor and indoor temperature sensors to achieve a constants indoor temperature.

The controller (provided in an IP54 casing) also allows control and monitoring of many other types of site equipment such as dampers, heaters, smoke detectors, Air-Conditioners, power counters etc. All the control algorithms are refined through years of application experience to maximize MTBF (Mean Time Between Failures) and minimizing power consumption. Scenario handling algorithms also take care of power failure, fire and many other situations.

When a system fault is detected, an alarm is triggered and is transferred from the control system to the Operation Center by software protocols (Modbus TCP) or detected on the hardware contacts. Alarms and site conditions are also logged continuously using a Real Time Clock to provide means of fault diagnostics and analysis through Network Management Software.

We also provide a wide range of accessories, such as heaters, intake-/exhaust cowls, back draught dampers, motorized dampers, roof cowls, grilles, communication products for monitoring etc.

The micro controller is easily reprogrammed and updated remotely to achieve additional functions or features.

It is designed for telecom systems with 48V supply.

Small Free Cooling fan for small equipment rooms where a Free Cooling Unit does not fit.

It is a small free cooling unit for smaller equipment rooms with 48V power supply where a free cooling unit would be unnecessarily large or where larger units simply do not fit.

Contents:
· Fan casing in Magnelis (C5), uncoated or coated
· EC-fan with external rotor motor
· 1 Temperature sensor regulator
· 1 Power cable 48V

Electrical data fan unit:
· Voltage 48 V
· Rated power 114 W
· Rated current 2,2 A
· Fan speed 2700 rpm
· Sound pressure level 50 dBA

Fan unit, air flow, dimensions and weight:
· 194 l/s at 50 Pa external pressure with clean filter
· Approved ambient temperature -25°C…+60°C
· Dimensions: 298x293x209 mm (WxHxD)
· Weight 6 kg
· Cooling capacity at Δt 2K* = 1-2kW
· Colling capacity at Δt 5K* = 2-4kW

Classifications according to IEC:
· Fan motor: IP54
· Temperature sensor: Protection Class II
· Connectors: IP20

Accessories:
· Filter M6 160×1500 mm
· Hose clamp 160 mm

Portable  Free Cooling unit for Temporary Cooling needs 

Portable free cooling unit suited for temporary cooling needs. The fan is controlled by a temperature regulator which regulates fan speed according to 10°C = 10%… 45°C = 100%

Contents:
· Fan casing in magnelis (C5), uncoated or coated.
· EC-fan with external rotor motor
· 1 st Temperature sensor regulator
· 1 st Power cable 230VElectrical data fan unit:
· Voltage 230 V
· Rated power 170 W
· Rated current 1,45 A
· Fan speed 2900 rpm
· Sound pressure level 73,9 dBAFan unit, air flow, dimensions and weight:
· 210 l/s at 50 Pa external pressure with clean filter
· Approved ambient temperature -25°C…+60°C
· Dimensions: See drawing on page 3
· Weight 6 kg
· Maximum cooling capacity at Δt 2K* = 1-2kW
· Maximum cooling capacity at Δt 5K* = 2-4kWClassifications according to IEC:
· Fan motor: IP54
· Temperature sensor: Protection Class II
· Connectors: IP20Accessories:
· Transition duct 200-160 mm
· Reinforced plastic hose 160 mm
· Filter M6 160×1500 mm
· Hose clamp 160 mm

 

as an emergency fan

It can be used as an emergency cooling system in situations where quick replacement of existing ventilation is needed.

1. Place the unit on a stable surface, connect the following:
a. The plastic hose (1), attach the transition duct and secure with the hose clamp.
b. The filter hose (2), attatch the transition duct and secure with the hose clamp.

2. Connect the plastic hose to the current inlet.

3. Make sure that the temperature sensor (3) is positioned 1.5m above the floor. It must not be in the air flow from the filter hose.

4. Connect the portable cooling unit  to an outlet.

Perfect Free Cooling Unit for central equipment rooms where low noise is of high priority

Contents:

· Fan casing in magnelis (C5)
· EC-fan with external rotor motor
· Sound absorbing baffles
· 1 M6 bag filter
· 1 outside temperature sensor

Electrical data fan unit:

· Voltage 48 V
· Rated power 330 W
· Rated current 6,9 A
· Fan speed 1500 rpm
· Sound pressure level 52 dBA

Fan unit, air flow, dimensions and weight:

· 720 l/s at 50 Pa external pressure with clean filter
· Approved ambient temperature -25°C…+60°C
· Dimensions: Se drawing on page 3
· Weight 78 kg
· Maximum cooling capacity at Δt 2K* = 1-2kW
· Maximum cooling capacity at Δt 5K* = 2-4kW

Classifications according to IEC:

· Fan motor: IP54
· Temperature sensor: Protection Class II
· Connectors: IP20