Air Conditioner Split Computer Room Units

Air Conditioner Split Computer Room Units

Petra understands the importance of environmental control for sensitive equipment and offers its Computer Room Split Air Conditioner.

PASC Series is specifically designed to be used wherever temperature, humidity and filtered air have to be controlled continuously within close tolerance limits.

Sensitive Electronic devices require demanding & controllable environment throughout the year (24/7). Such devices have to be controlled in terms of humidity and internal temperature to close tolerance limits.

Typical requirements of such environment is to maintain internal conditions  between 16-28 °C (60.8-82.4 °F) with moisture content of 50-60% relative humidity.

Computers & communications systems generate 6-10 times the heat load of normal occupied spaces and they require state of art air conditioning equipment to control them They can be installed in data centers, tele-communications centers, laboratories, computer server data rooms, network operation centers, testing facilities and others.

  • Petra PASC units has been developed and based on proven design and in house testing according to the highest international standards. It is used in various of systems all over the world
  • Petra PASC units provides the highest energy efficiency both at operating & running conditions and thus provides the lowest operating cost. This is achieved by using the most reliable and energy efficient electronic components.
  • Savings are obtained by using optional digital scroll compressor, EC fan motors, external rotor condenser fans and Petra piece of art microprocessor controller
  • Unmatched corrosion resistance with oven baked powder coat (5,000 hours salt spray test) the highest in industry
  • Microprocessor controller built to space requirements with intelligent alarm and diagnostic system that can prevent a problem before it occurs. Full refrigerant system control with air delivery variation to deliver the specific space load requirements with the lowest energy consumption ever
  • Down flow and up flow configurations are available to suit a wide range of room applications. Different choice of compressors from on/off or digital to match space performance with optimal efficiency
  • Front access panel for service and maintenance that saves floor space. Front access using hinged doors, allows
  • Petra PASC to be mounted against a wall or partitions on adjacent to or back at other equipment. All unit components are accessible from the front panels for maintenance or replacement Built-in humidity and reheat devices. Ozone friendly refrigerants (R-407c & R-410a). Full microprocessor control panel with different BMS connectivity’s and full diagnostic system


  • All units are constructed of heavy gauge galvanized steel with oven-baked, electrostatic polyester paint. Standard paint is RAL 9005 (Black)
  • Double skin construction panels that are internally lined with 25 mm (1.0 inch) fiberglass insulation with 48 kg/m3 (3 lb/ft3) density or its equivalent
  • Suction gas-cooled hermetic scroll compressor with low sound and superior efficiency
  • EC fans used to increase energy efficiency and provide supply fan technology control operation
  • Coils are manufactured from seamless copper tubes mechanically-expanded into aluminum fins to be suitable for working at 2,068 kPa (300 Psi) air pressure
  • MERV 8, 50 mm (2.0 inch) nominal thickness pleated flat filter. Filters shall have an arrestance of 90-95% with equivalent European efficiency class of G4
  • Finned tube electrical heating elements with automatic thermal safety cutout and contactors
  • Steam humidifier controlled using highly advanced microprocessor technology


  • Condenser fans shall be of the external rotor type
  • Condenser coils are manufactured from seamless copper tubes mechanically-expanded into aluminum fins to be suitable for working at 2,068 kPa (300 Psi) air pressure
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