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DSPS

Air Cooled Condensing Unit with Semi-Hermetic Screw Compressor

Air Cooled Condensing Unit with Semi-Hermetic Screw Compressor

DSPS air cooled condensing units are designed specifically for easy maintenance and installation for medium and large-sized air conditioning systems for commercial and residential applications such as homes, stores, shops, villas, restaurants, commercial complexes, offices, laboratories, theaters, showrooms, etc.

DSP series is available in a capacity range from 25 to 590 nominal kW (85 to 2,000 nominal MBH). Petra air cooled condensing units can be used for cooling or heating (heat pump optional). Petra air cooled condensing units are rated and certified in compliance to standard AHRI 410.

DSPS air cooled condensing units are designed specifically for easy maintenance and installation for large-sized air conditioning systems for commercial applications such as stores, commercial complexes, offices, laboratories, theaters, showrooms, etc.

DSPS series is available in a capacity range from 200 to 586 nominal kW (700 to 2,000 nominal MBH). Petra air cooled condensing units can be used for cooling or heating (heat pump optional).

Petra air cooled condensing units are rated and certified in compliance to standard AHRI 410.

  • Copper tubes copper fins coil
  • Coil corrosion protection including polyurethane pre-coating (for aluminum fins) and polyurethane post-coating (for aluminum & copper fins)
  • Sound reduction options including low rpm condenser fan, compressor jacket & compressor compartment
  • coil guard placed on the lower part of the unit all over the perimeter to provide protection for unit components, fabricated from gauge 18 [1.25 mm (0.05 inch)] galvanized steel sheet metal & painted with Petra electrostatic powder paint, fitted in place by spring load quick turn latch and is supported upon opening by stainless steel hinges
  • Hot gas bypass consists of a mechanical valve capacity regulator used to adapt compressor capacity to actual evaporator load, installed in a bypass line between the high and low pressure sides of the refrigeration system and is designed for hot gas injection into the evaporator just after the expansion valve
  • Pressure gauges for monitoring of refrigeration discharge and suction pressure
  • Pressure relief valve set to open at a predetermined set pressure to protect pressure vessels and other equipment from being subjected to pressures that exceed their design limits
  • Main disconnect switch used to de-energize the power supply to the chiller during servicing or repairing works because of the door interlock with an external handle that is installed on the electric panel door
  • Power factor correction used to improve the power factor level which improves system reliability, minimizes voltage drops and gives better power quality
  • Earth leakage relay used in electrical installations with high earth impedance to prevent shock
  • Control transformer to supply power input to auxiliary components at 120 or 220 volts, such as (not limited to) bulk head light and GFI outlet
  • IP 54 protection, class I electric safety bulk head light
  • Ampere-meter & volt-meter used to measure the power current & voltage consumption Ampere-meter is used for each phase
  • 120 volt power supply connected through the transformer to provide a 120 volt single phase circuit that is used to operate the electric appliances at site such as laptops, tablets and cell phones
  • Speed regulator for condenser fan motors used to permit the unit to operate in low ambient temperature
  • Dual power connection, one power entry for compressors & the second for the rest of the unit
  • External over load for each compressor
  • External over load for each condenser fan motor
  • Circuit breaker for each compressor
  • Circuit breaker for each condenser fan motor
  • Nema 4x electrical panels made from galvanized steel
  • Nema 4x electrical panels made from stainless steel
  • Electronic expansion valve
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