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Our projects include
commercial retail, office
buildings, schools, hospitals, churches, and recreation centers.
Mechanical HVAC Systems design, layout, and analysis. Modeling of
energy use and air handling efficiency, including BAS building
automation systems.
Typical commercial HVAC and
climate control projects include forced air, VAV, air handling units,
cooling towers, pumps, duct work
, ventilation fans, and exhaust hoods. We design, fabricate and
assemble working HVAC systems and components such as hoods, compressors, condensers, evaporators,
furnaces, heaters, registers, grilles, and diffusers.
Electric
air conditioning can take a big bite out of the energy budget of
commercial and institutional building owners. Predictions are that new
pricing
mechanisms will lower off-peak and overall electric costs while
threatening even higher summer on-peak rates. Since much of a
building's cooling load occurs during on-peak periods, this is bad news
for businesses with significant cooling needs.
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Commercial Kitchen Exhaust Ventilation
Hoods, vent hoods, fume hoods, grease hoods, exhaust fans, hood
balancing, stainless backsplash, grease duct, Type1 and Type 2 hoods.
Request a quote
for new installations, replacements and service. IAQ, indoor air
quality, air filtration, filtration, design build, air conditioning
service, second opinion, chiller service, chilled water, chilled water
piping, hydronic, make up air, energy management systems, load
calculation, heat pump, two stage, variable speed, VFD, humidity
control, HEPA
Affiliations: CaptiveAire, Inc. commercial kitchen ventilation,
Superior Products International II, Inc, (Supertherm, HPC, HSC, Rust
Grip, Omega Fire), Lennox, Carrier , Trane, Goodman, Honeywell.
Insulation manufacturers - Certainteed, Johns Manville, Owens Corning,
Knauf
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New natural gas air conditioning and refrigeration
options are now
available that can help owners and managers of office and apartment
buildings, hospitals and other healthcare facilities, hotels, schools,
retail establishments, and supermarkets manage their energy costs for
commercial HVAC applications. |
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You
may recognize a few of our Houston area clients on
the commercial side:
Cafe Adobe, Los Tios, Skeeter's Mesquite Grill, TGF Haircutters, City
Cuts, Hallmark Greeting Cards, Anthony & Sylvan Pools, Today's
Vision, Post Oak Bank, Compass Bank, Langham Creek Bank, Ritz Camera,
Quizno's, UPS/Maibox Etc., Capital 4 / Infinitel, Albert Luiz Salons,
Wodhouse Day Spas, Massage Envy, 4 Leaf Towers, Villa D’ Este, 3 Men
Movers and numerous recreation centers, shopping mall and retail strip
center tenant
operators. |
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Chilled Water Systems
Chilled water systems work much
the same way as direct expansion systems work except they used chilled
water in the coil rather than refrigerant (Technicially speaking, water
can be classified as a refrigerant). Chilled Water systems can be
rather complex and many chilled water systems are found in commercial
and industrial applications.
A
typical chiller uses the process of refrigeration to chill water in a
chiller barrel. This water is pumped through chilled water piping
throughout the building where it will pass through a coil. Air is
passed over this coil and the heat exchange process takes place. The
heat in the air is absorbed into the coils and then into the water. The
water is pumped back to the chiller to have the heat removed and make
the trip back through the building and the coils all over again.
The chiller basically removes heat from the water so that it may used
as a refrigerant to remove heat from the building. Chillers range in
size from smaller than 5 tons all the way up to several hundred tons.
Many
chillers have cooling towers where the heat removed in the chiller
barrel is transferred to another barrel. It is the condenser barrel
where the refrigerant is condensed and sent back to the evaporator
barrel to remove the heat. The process is in reverse in the condenser
barrel. The water absorbs heat from the refirgerant and allows it to
condense.
The
water is then transferred to a cooling tower where the heat in this
water is removed to the atmosphere. Once the heat is removed from the
water it is pumped back to the chiller barrel to absorb more heat from
the refrigerant. Some chillers do not have a condenser barrel to remove
the heat. The refrigerant is pumped into a condenser coil where a fan
blows across the coil and removes the heat. These chillers are cheaper
to purchase upfront but not as efficient to run as those with the
condenser barrels. The upfront costs are less but the energy costs are
more over the long run. One bonus to an air cooled chiller is that it
does not require a cooling tower and therefore the maintenace costs
associated with maintaining a cooling tower.
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Chilled water systems provide comfort to mainly
commercial buildings and are typically cheaper to operate than DX
systems. While many buildings have DX
(direct expansion) systems in the way of large roof top units, the cost
of installation is
generally cheap for the DX systems because all that is required to
install them is duct work and electrical service to the unit.
With
chilled water systems, chilled water piping must be installed
throughout the building and this can be far more expensive to install
over the plain old DX roof top units which supply conditioned air to a VAV
system that has electric reheat in them. Of course, adding state of
the art controls like direct digital controls can improve any system
and take energy management to a whole new level of control and savings.
So whether your building utilizes chilled water or DX systems it will
save energy dollars by adding a state of the control system like DDC or
direct digital controls to make it work as efficiently as possible.
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