Multi-String Cool Cell Enclosures for the Telcom and Utility Industries

Model  CCPSD-803466-6S

This enclosure is fitted with 6 pull-out battery trays. (500 lbs. cap. Ea.)  It will hold 6-48 volt strings of 125 Ah batteries. It's used primarily for stand by power in telecommunication and utility applications where easy access to the tops of the batteries is required.

Model CCPSD-383068-3FS

This economical Cool Cell is fitted with 3 fixed shelves. It will hold up to 12 group 27 or 29 batteries.  It has an optional wiring harness with positive and negative busbars for 3 strings of batteries at 48 volts or 6 strings at 24 volts. Approximately 5” of space is available above the batteries for servicing.  For hydrogen safety it has a 2” Convective Hydrogen Vent.

Model CCPSD-443846

In Yuma, AZ batteries were removed from an unconditioned telcom cabinet.  New, higher capacity batteries where installed in an adjacent Cool Cell Enclosure to protect them from extreme heat and to extend the system back up time.  The Cool Cell holds 2 ea. 48 volt strings of batteries on 2 pull-out battery trays.

Smaller 2 and 4 Battery Cool Cell Enclosures

Model  CCRS-332430-SB 

This 4 battery Cool Cell Enclosure is fitted with a side box for related electrical components which could include charge controllers, circuit breakers, or other electronic equipment.  It's generally not good practice to mix batteries with electronic components especially if a spark or arch is possible.  Batteries produce potentially explosive hydrogen gas when charged.  Even sealed VRLA batteries are a threat.  All battery Cool Cells have a hydrogen vent system.

Model  CCRS-332430

This Cool Cell holds 4 group 27 100Ah batteries configured in a 48 volt string.  It provides back up power in a utility switch yard. During an outage it maintains the communication link with the central office.

Model # CCRT-242028

It will hold 2 ea. group 29 batteries.  It is fitted with uni-strut channel on the back side and is intended for pole mounting. It has a passive 1” Convective Hydrogen Vent to safely vent any hydrogen produced during charging.  Conduit access is through a 2” FPT fitting on both sides of the enclosure. It's insulated with 2” of Styrofoam. (R-10)

Tank Top Cool Cell Enclosures

Model  CCTTWB-211830

This pole mounted mini Wattbox has 2 compartments.  The top section is passively cooled and can hold two 12 volt 100 Ah batteries.  It has a 1” convective hydrogen vent.  The ventilated bottom compartment is accessed through a drop down panel and has removable mounting panel which can hold charge controllers, circuit breakers or other wiring devices.

Model CCTT-522828

This Cool Cell  has a large capacity and is economically priced. It's intended for hot climates without harsh winters.  It’s not freeze proof and should not be used if total freeze up is possible.  The usable interior space is 46” w x 23” d x 13” h and will hold four 8G8D size batteries.  It’s fitted with a 2” Convective Hydrogen vent and has a 2” FPT  conduit fitting on both ends.

Mono Lake Air Monitoring Project

System Integrator: Carmanah Technologies

Cool Cell Model CCPSD-784064

Each enclosure houses 3 stacks of GNB 100A39 batteries.  The batteries are used to store the electrical power produced by the solar array.  The enclosures are fitted with the patented passive Convective Hydrogen Vent which eliminates any explosive hydrogen gas produced when the batteries are charged.  The system was designed to provide several days of autonomy without any sun.

Model CCHF-544456-4T4R

This High Flux Cool Cell enclosure contains the air monitoring pump and associated electronic equipment used to monitor air quality at Mono Lake in California.  It has four 12 sq. ft. radiators and 4 internal cooling reservoirs to maximize surface area and cooling effectiveness. The enclosure was mounted on a pressure treated wood skid so it can be moved and relocated with a minimal environmental footprint.

We have a variety of Cool Cell Enclosures for electronic equipment but one size does not fit all applications.  The factors affecting the enclosure design are heat dissipation of the equipment, it's upper temperature, physical size, and location of the installation.  We balance the radiator area, water thermal mass and tank surface area to the load.  More heat requires a larger cooling system.  Heat dissipation can be difficult to determine and is often overstated.  This can result in over design and increased costs.  More heat requires a larger cooling system.

“Sombrero Lid” Model

CCPSD-483660-4S

The radiator lid of the enclosure overhangs the shadow of the box below to increase surface area and cooling. The sides and back of the enclosure are also radiators.  The radiators are plumbed to multiple internal  reservoirs which absorb heat from the electronics which moderates the enclosure temperature.  Equipment racks can be incorporated into the design as needed.  When batteries are part of the package a hydrogen vent is included.

Model  CCPSD-483660-P4S

Model  CCPSD-483692-P4S

High Flux Vertical Fin Cool Cell Enclosures

When we have more heat than the “Sombrero Lid” Cool Cell can manage, we use a design of multiple vertical radiator fins with symmetrical internal tanks below inside the enclosure.  The increased radiator area along with greater tank surface area absorbs more heat.  Each tank and radiator can absorb about 20 watts of dissipated heat and maintain the enclosure temperature below the daily ambient high when there is a 20 degree F diurnal swing.  An advantage of this modular design is if a single radiator or tank should fail, the balance system will still cool.   If more cooling is needed, radiators and tanks can be added as needed.  We have constructed High Flux Cool Cells with as many as 12 radiators and tanks to cool 250 watts.

Model CCHF-544896-7T7R

This Cool Cell has 7 vertical fin radiators mounted above the enclosure.  Each radiator is plumbed to a 20 gal. reservoir suspended below inside.  The individual reservoirs maximize surface area to absorb heat.  The radiators on top are  plumbed to a common expansion tank  which makes filling easy.   The equipment was placed on the floor of the enclosure under the reservoirs.  Heated air convects up between the reservoirs, is cooled and returns to the floor to cool the electronics.  This Cool Cell and Air monitoring System was trailer mounted and moved around the Joshua Tree National Park.   The enclosure and electronics stayed at least 5 degrees C below the ambient temperature even when the daily high was 40 C. The internal heat load was a continuous 150 watts.

CCHF-544896-7T7R on the trailer

Interior view of

CCHF-544896-7T7R

Showing the reservoirs and equipment below

OEM and Contract Manufacturing

Passively Heated & Cooled Shelter

The shelter is 10’x 8’.  The exterior walls are 14 ga. galvannealed steel.  The walls, roof, and ceiling are insulated with 4” foam insulation. (R-28).  The interior is finished with a smooth beige color paneling.  Passive cooling reservoirs are overhead and out of the way.  The cooling radiator is roof mounted and protected by an ice shield.  Minimal winter freeze protection is provided by a south wall hydronic convective heating system.  The shelter can house communication equipment, and or solar, and battery systems.