BAC Refrigerant condensers

Baltimore Aircoil Company (BAC) is the world’s largest manufacturer of cooling towers. With over 75 years of experience and over 100 patents in the field, BAC offers reliable and efficient cooling technologies for industrial, HVAC and refrigeration processes.

Evaporative condensers discharge refrigerant and air-conditioning heat, and consume minimal energy and water. They combine a cooling tower and a refrigerant condenser in a single unit.

Key benefits of evaporative condensers

economy-saver

Initial cost savings: cooling tower, condenser surface, water pump and piping in a single equipment unit

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Low system operating costs: low condensing temperatures for a more compact compressor using less power

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Low refrigerant charge, costs and environmental impact minimized

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Space-saving: up to 50 % area savings compared to comparable air-cooled installations

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Eurovent certified

VXC
Evaporative condenser

Overview

Reliable operation guaranteed

Since 1978, thousands globally installed, proving the VXC condenser reliability.

Fans, motor and drive system (V-belt) are located in the dry air, preventing moisture and condensation.  No external moving parts, helping it withstand the toughest weather.

Various corrosion-resistant materials, including the unique Baltibond hybrid coating for guaranteed long service life.

Optional extended surface coil with steel fins for dry operation.


Ideal for a quiet operation

VXC evaporative condensers include quiet internal centrifugal fans for minimal surrounding noise.

Single-side air inlet, and a quieter condenser rear for more noise-sensitive areas.

Cut operation noise still further with factory-designed and tested sound attenuators or silencers.


More compact

Compact design for confined spaces,

Single-side air inlet lets you install next to solid walls,

Units housable indoors thanks to centrifugal fans allowing intake or discharge ductwork.


Reduced shipping, rigging and installation costs

VXC units are factory-assembled. We ship larger models in 2 sections to reduce the size and weight of the heaviest section for easy on-site assembly with smaller cranes

VXC offers high capacity and minimal operating weight. Save on steel supports, both underneath the equipment and in the building itself for rooftop installations.

VXC-C models can be container-shipped (in 12’ containers). Fan enclosures shippable loose in the condenser bottom section for easy on-site assembly.

Principle of Operation

Vapor (1) enters through a evaporative condensing coil (2) and gets water sprayed on by the spray system (3) at the top of the condenser. At the same time the centrifugal fan (4), located at the bottom of the unit, blows ambient air (5) upwards through the condenser. During operation, heat is transferred from the internal circuit coil to the water, and then to the atmosphere as a portion of the water that evaporates. The condensed vapor then exits the unit (6). The sump (7) or basin collects the water. The spray water pump (8) recirculates the water up to the water spray system. The warm saturated air (9) leaves the condenser through the drift eliminators (10), which remove water droplets from the air.

Key benefits

  • Reliable
  • Quiet
  • Compact

Typical applications

  • Tight enclosures and installations requiring a single air inlet
  • Limited plan area installations
  • Indoor installations
  • Sound critical installations
  • Dry operation in winter time
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VCL
Evaporative condenser

Overview

Low height

Very low height: fits perfectly on roof tops or tight enclosures.


Easy installation

VCL condensers are factory-assembled. We ship in one piece for easy on-site lifting and installation.

VCL offers high capacity and minimum operating weight. Save on steel supports, both underneath the equipment and in the building itself for rooftop installations.

Single-side air inlet lets you install next to solid walls.

Units housable indoors thanks to centrifugal fans allowing intake or discharge ductwork.


Ideal for a quiet operation

VCL units include quiet internal centrifugal fans for minimal surrounding noise.

Single-side air inlet, and a quieter condenser rear for more noise-sensitive areas.

Cut operation noise still further with factory-designed and tested sound attenuators or silencers.


Year-round reliable operation

Various corrosion-resistant materials, including the unique Baltibond hybrid coating for guaranteed long service life.

Optional Baltiguard Drive System for energy savings and less noise during low load (night). A perfect stand-by system in case of motor failure

Optional extended surface coil with steel fins for dry operation.

Principle of Operation

Vapor (1) enters through a evaporative condensing coil (2) and gets water sprayed on by the spray system (3) at the top of the condenser. At the same time the centrifugal fan (4) blows ambient air upwards (5) through the condenser. During operation, heat is transferred from the internal circuit coil to the water, and then to the atmosphere as a portion of the water that evaporates. The condensed vapor (6) then exits the unit. The tower sump (7) or basin collects the water. The spray water pump (8) recirculates the water up to the water spray system. The warm saturated air (9) leaves the tower through the drift eliminators (10), which remove water droplets from the air.

Key benefits

  • Low height
  • Easy installation
  • Quiet

Typical applications

  • Low height requirements
  • Tight enclosures and installations requiring a single air inlet
  • Indoor installations
  • Sound critical installations
  • Dry operation in winter time
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POLAIRIS
Evaporative condenser

Overview

Extremely reliable

The PolairisTM evaporative condenser’s design incorporates all experience BAC acquired over the last decades with thousands of VXC units installed globally since 1978.

Fan drive systems are located inside the unit, in the dry air, preventing condensation and eliminating corrosion issues and premature failures.

Direct driven fans eliminate potential mechanical failures.

Multiple, individually driven fans guarantee redundancy.

Baltibond hybrid coating for maximum equipment life, with corrosion resistance equivalent to SST 304L.

Dry operation possible.


Energy efficient

Evaporative condensers yield the lowest condensing temperatures and hereby minimize the system energy consumption.

Up to 50% savings with the energy efficient radial fans, compared to standard centrifugal fans.

EC motors have superior efficiency that exceeds the IE4 requirements. Integrated electronics of EC motors allow for variable speed control at a significantly reduced power consumption compared to AC motors with VFD.


Minimal maintenance and easy to inspect

Direct driven fans require no maintenance at all.

The DiamondClearTM Design* offers a continuous self-cleaning operation. The need for maintenance is minimized by using fully sloping surfaces, a constant impact of falling spray water and high water velocities.

Collection basin covers only a fraction of the unit footprint, which makes it subject to higher turbulences. Together with the significantly lower volume (25% reduction versus conventional evaporative condensers), this reduces the chemical usage and need for cleaning.

Unmatched accessibility to the basin, drives and fans in the dry section, via the mansized access door at ground level.

Water distribution system is easily accessible from outside.

Baltibond hybrid coating for a smooth surface finish that facilitates internal cleaning.


Superb hygiene

The DiamondClearTM Design* offers a continuous self-cleaning operation. During standstill the sloping surfaces fully drain, avoiding stagnant water and the risk of sedimenation of impurities.

A completely encased collection basin eliminates any sunlight ingress, preventing biological growth.

Baltibond hybrid coating for a smooth surface finish that reduces biofilm development.

The floor is fully sloped towards the drain – also in the dry section – for easy cleaning.

Water treatment system connections are provided as standard.

The access door is located in the dry area, eliminating any leakage risk.


Optimized for transport and easy installation

Installations costs are reduced since units are shipped in 2 factory-built sections with a rigid base frame that guarantees squareness for easy on-site assembly.

Minimal freight costs with 2,4 m wide units that fit into standard trucks.

Fans are prewired to a terminal box to avoid time-consuming on-site wiring. Integrated electronics of EC motors eliminate the need for external VFD’s, electronic filters and shielded cables.

Single side air intake allows for installation in confined spaces and next to solid walls.

Pressure capability of fans allows indoor installation with ductwork.

Silent radial fans reduce the need for installation of sound attenuation.


Ultra silent

Silent radial fans are standard.

Single side air inlet allows directing the quiet unit rear towards noise sensitive areas.

Sound attenuation is available for the most stringent sound requirements.

Principle of Operation

Refrigerant vapour (1) circulates through an evaporative condensing coil (2), which is continuously wetted by the spray system (3) installed at the top of the condenser. At the same time the direct driven radial fans (4), located at the bottom of the unit, blow ambient air (5) upwards through the condenser.

During operation, heat is transferred from the refrigerant to the water, and then to the atmosphere as a portion of the water that evaporates. The condensed vapour then exits the unit (6). The remaining spray water that falls on the sloping channels (7) continuously flows into the sloping sump (8), where the water is collected. Access louvers (9) prevent water splash-out to the dry section. The spray water pump (10) recirculates the water up to the water spray system. The warm saturated air (11) leaves the condenser through the drift eliminators (12), which remove water droplets from the air.

Key benefits

  • Extremely reliable
  • Energy efficient
  • Minimal maintenance and easy inspection

Typical applications

  • Industrial refrigeration applications with focus on reliability, energy efficiency and minimal maintenance
  • Tight enclosures and sound critical installations
  • Dry operation in winter time
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CXVE
Evaporative condenser

Overview

Star in energy efficiency

Evaporative cooling PLUS unique combined heat transfer system for minimized system-wide energy consumption. This patented combined flow design from BAC ensures unrivalled efficient heat rejection at the lowest possible energy input.

Axial fan uses half the energy of similar centrifugal fan units.

Bacross II fill factory-configured for unrivalled water/air contact and minimal air pressure drop. Guarantees optimal condenser efficiency.

High efficiency fan motors.


Low maintenance and easy inspection

Inspection of water distribution system (spray branches and nozzles) possible outside the unit, during operation. Inspect and maintain safely CXVE condensers with unrivalled comfort, while standing inside.

The CXVE has a spacious plenum (internal area) and easy inspection/maintenance access.

Access via large hinged door to optional internal walkway: no basin draining needed for unit interior inspection.

Easy to inspect the coil during operation from the outside or from the inside via the removable drift eliminator modules.

Easy to inspect the fill from the inside and via the removable combined inlet shields from the outside.

The patented Bacross II fill sheets reduce fouling and are telescopically supported, allowing complete inspection of the fill core without dismantling.

Self-cleaning cold water basin and fill above sloped basin to flush out dirt and debris.

Fans are easily accessible from the in- and outside

Optional clean out port helps remove silt and sludge from the cooling tower basin.

Removable suction strainer anti-vortex hood.

Make-up, drain and overflow easily accessible for inspection and cleaning.


Unmatched hygiene control

Easy-clean and easy-inspect CXVE condensers reduce hygiene risks from bacteria (e.g. Legionella) or biofilm inside.

The patented Bacross II fill sheets reduce fouling and are telescopically supported, allowing complete inspection AND cleaning of the fill core without dismantling.

Combined inlet shields block sunlight to prevent biological growth in the tower, filter the air and stop water splashing outside. 

High efficient drift eliminators certified by Eurovent to prevent droplets escaping into the air.

Optional clean out port helps remove silt and sludge from the cooling tower basin. 

Optional sump sweeper piping prevents sediment collecting in the cold water basin.


Reduced refrigerant charge

There is less coil surface required because of the patented combined heat transfer system. This also means less refrigerant charge.

Using less refrigerant charge decreases the operating charge of the overall system and system costs.


Year-round reliable operation

Unique and patented heat transfer system: featuring combined flow via heat exchange coil and fill pack, for fine temperature applications and thermal challenges.

Multiple fan motor system covers independent fan motor and drive assembly per fan for stand-by in case of fan failure.

Various corrosion-resistant materials, including the unique Baltibond hybrid coating for guaranteed long service life.

Single air inlet and discharge, fits in most enclosures.


Ultra silent design

CXVE units include low noise axial fans for minimal surrounding noise. To reduce noise even further, choose for Whisper Quiet fans.

Factory designed, tested and rated sound attenuation is available on air inlet to cut operation noise even further. Single-side air inlet, and a quieter condenser rear for more noise-sensitive areas.

BACross II fill guides smoothly the water all the way into the basin without water splash noise.


Cheap to install

CXVE condensers are factory-built and shipped in sections for larger models to reduce the overall size and weight, allowing easy on-site section assembly with smaller crane.

Principle of Operation

The CXVE combines the use of an evaporative condensing coil with an intergrated fill pack for cooling down the recirculating spray water.

The vapour (1) circulates through a condensing coil (2), which is wetted by a spray system (3). In parallel with the water spray flow, an axial fan (4) draws air (5) over the coil. The evaporation process condenses the vapour into liquid (6). The spray water falls onto a fill pack (7) where it is cooled before falling into the sloping water basin (8) or sump. The spray pump (9) recirculates the cooled water to the top of the unit. The warm saturated air (10) leaves the tower through the drift eliminators (11) which remove water droplets from the air.

Key benefits

  • Star in energy efficiency
  • Low maintenance and easy inspection
  • Unmatched hygiene control

Typical applications

  • Industrial refrigeration applications with low sound and energy requirements.
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PCE
Evaporative condenser

Overview

Low energy consumption

Evaporative cooling for system-wide energy saving at lower operating temperatures.

Axial fan uses half the energy of similar centrifugal fan units.

Factory tested high efficiency coil.

High efficiency fan motors


Low noise

PFE features low noise axial fans. To reduce noise even further, choose for Whisper Quiet fans.

Factory designed, tested and rated sound attenuation is available on the discharge for further noise reduction.

Water silencers achieve noise levels close to those of crossflow towers. Water silencers come always with Whisper Quiet fans.


Easy to maintain

Easier to maintain than other induced draft counterflow condensers.

BranchLok water distribution – each branch removable for easy cleaning.

Combined inlet shields for easy no-tool removal.

Motor adjusters: externally accessible and locking wrench for easy motor alignment and belt tensioning.

Full cold water basin access when removing the combined inlet shields.

Fans easily accessible via sliding access door.

Optional clean out port helps remove silt and sludge from the basin.

Removable suction strainer anti-vortex hood.


Operational safety

Closed loop, no airborne contaminants enter and foul the system.

Easy-clean and easy-inspect PCE condensers reduce hygiene risks from bacteria or biofilm inside. 

Self-cleaning cold water basin and fill above sloped basin to flush out dirt and debris

Combined inlet shields block sunlight to prevent biological growth in the tower, filter the air and stop water splashing outside.


Ship and install PCE easily

The leak-free InterLok system means swift PCE condenser on-site assembly. Install the basin on the upper section with no sealer tape in between!

Compact footprint – perfect for confined spaces.

Container shipment often possible!

Principle of Operation

The vapour (1) circulates through a condensing coil (2), which is wetted by a spray system (3). An axial fan (4) draws air (5) over the coil. The evaporation process condenses the vapour into liquid (6). The spray water falls into the sloping water basin (7) or sump. The spray pump (8) recirculates the water to the top of the unit. The warm saturated air (9) leaves the condenser through the drift eliminators (10) which remove water droplets from the air.

Key benefits

  • Low energy consumption
  • Low noise
  • Easy to maintain

Typical applications

  • Industrial refrigeration applications
  • Dry operation requirement in winter time
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HXC
Evaporative condenser

Overview

Water-saving

Different operating modes throughout the year. In summer peak periods HXC operates as an evaporative condenser. In other periods modulating air inlet dampers increase the air flow boosting the dry condensing capacity and saving water. In winter time dry operation is possible.


No plume

The combination of sensible, adiabatic and evaporative heat transfer reduces any plume.

In winter time, HXC operates dry.

No plume during wet operation thanks to dry finned coil: it reduces humidity of discharge air from the prime surface coil.


Reduced refrigerant charge

Less coil surface (because of the patented combined heat transfer system) means less refrigerant charge and recuded overall system costs.


Easy to inspect and to maintain

Inspect and maintain safely HXC condensers with unrivalled comfort, while standing inside.

The HXC has a spacious plenum (internal area) and easy inspection/maintenance access.

Access via large hinged door to internal walkway: no basin draining needed for unit interior inspection.

Easy to inspect the coil during operation from the outside or from the inside via the removable drift eliminator modules.

Easy to inspect the fill from the inside and via the removable combined inlet shields from the outside.

The patented Bacross fill sheets reduce fouling, allowing an easy inspection of the fill core without dismantling. Optional BACross fill bundles for quick and easy removal and cleaning of the fill.

Self-cleaning cold water basin and fill above sloped basin to flush out dirt and debris.

Removable suction strainer anti-vortex hood.

Make-up, drain and overflow easily accessible from the outside for inspection and cleaning.


Energy-saving

Evaporative cooling PLUS unique combined heat transfer system for minimized system-wide energy consumption. 

Axial fan – half the consumption of rivals and huge single cell capacity: saving you more!

Less water usage = less water costs = less water treatment expenses


Flexible operation

Unique and patented heat transfer system: featuring combined flow via heat exchange coil and fill pack, for fine temperature applications and thermal challenges.

Various corrosion-resistant materials, including the unique Baltibond hybrid coating for guaranteed long service life.

Single air inlet and discharge, fits in most enclosures.


Maximum operational safety

Easy-clean and easy-inspect HXC units reduce hygiene risks from bacteria or biofilm inside.

Combined inlet shields block sunlight to prevent biological growth in the tower, filter the air and stop water splashing outside.

The patented BACross fill reduces fouling.

Drift eliminators certified by Eurovent, to prevent droplets escaping into the air.

Principle of Operation

Operation 1

The vapour (1) passes first through the dry finned coil (2) and then enters the prime surface coil (3), which is wetted by a spray system (4). When the dampers (5) are closed an axial fan (6) draws air over the prime surface coil in parallel with the water spray flow. The evaporation process condenses the vapour into liquid (7). The spray water falls onto a fill pack (8) where it is cooled before falling into the sloping water basin (9) or sump. The spray pump (10) recirculates the cooled water to the spray system. The warm saturated air (11) leaves the tower through the drift eliminators (12) over the dry finned coil where it picks up additional sensible heat.

Key benefits

  • Maximum water saving
  • No plume
  • Reduced refrigerant charge

Typical applications

  • Industrial refrigeration applications
  • Water saving requirements
  • Plume reduction requirements
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