MarCraft Provided The Heating And Cooling Solution For The Crystal Bridges Museum Of American Art.  A Story On The Crystal Bridges Museum Was Featured In The July 4th Issue Of Engineering News-Record.  Read the Story at 

http://enr.construction.com/buildings/construction_methods/2011/0704-ArtfulBalancing.asp

TruCustom vs. Custom

Some of the differences between a MarCraft TruCustom HVAC System vs. a “Custom” Air Handling Unit are:

• 4” or Greater Wall Thickness – Great for High or Low Temperature Units
• Typical Casing Leakage  rates of 1 / 2 %   of Design CFM at 12” w.c. of Total Static Pressure  with optional rating at 1/4% of design CFM with our ZERO CASING housing.  
• ZERO CASING & ZERO+ CASING Ultra low leak systems provide much better efficiency while reducing cross contamination.  Key for Energy Recovery Systems and Lab/Clean Room Systems.  
• Special Materials of Construction – Units manufactured entirely out of aluminum can save 30-40% on weight, Saving money on structural costs on the job sites
• TRU No-Thru Metal Casing – Reduces the thermal energy losses radiated through casing.  Another great feature for high or low temp units.   
• Full Electrical and Controls Systems from a variety of manufacturers to match existing campus standards.  Custom programming and integrations packages available. 
• Full Piping Systems DX, Chilled Water, Hot Water, Steam as well as Air and other fluids – Reduce Installation Time of Custom System while reducing jobsite costs and increasing quality. 
• Fully Custom Aspect Ratio – Typically units are designed for the maximum interior airflow speed to be approximately 500 FPM for the filters and cooling coils.  Therefore, a 20,000 CFM air handling unit requires a minimum of 40 sq.ft. of interior casing area.  Thus, 4 ft. high by 10 ft. wide and 4 ft. wide by 10 ft. high both meet the minimum requirements for the air velocity.  However, in one instance the air handling unit may be installed in a room that is only 8 ft. wide but is tall enough to fit an air handling unit with an interior height of 10 ft.  In another instance, the air handler may need to be designed to go through a 7 ft. high door, in which case the 4 ft. interior height is more appealing.
• Unusual Geometry – Assume an air handler may require 30 ft. of length to contain all components; however, the mechanical room where the air handler is going is only 25 ft. wide by 25 ft. long.  MarCraft can provide an “L”-shaped air handling unit to include all of the different components and still fit into the space provided.   Want a round unit, what diameter?  Want it stacked, how high?  Need to fit an elevator and split in all 3 planes, what are the requirements?  Field assembly is always less costly than field built, TRUCustom can help you achieve this. 
• Replacement Units Including Direct Fit of Existing Curbs and Ductwork – This will reduce installation costs during a retrofit project.  
• Fully packaged Mechanical Equipment Rooms, Chiller Plants, Boiler Plants and/or TRUCustom Penthouse units are great options to meet tight schedules, tight spaces, and tight budgets!

Contact MarCraft today to learn more about TruCustom HVAC Systems.