20-80 Ton Self-Contained Air Conditioners - Page 1

New Flexible Design Concept Streamlines Layout and Reduces Installed Cost.

Why Consider Self-Contained Variable Air Volume (VAV) Floor-by-Floor Systems?

Improved Cash Management

• Factory packaging and testing reduces field labor and installation risk and improves system reliability.
• Phased equipment start-up matches building lease-up.
• Short construction cycles maximize cash flow.
• Requires less sophisticated maintenance than built-up systems.

Tenant Satisfaction

• Tenants can control system after hours to increase productivity and minimize expense.
• Complete HVAC system on each floor minimizes tenant inconvenience during routine maintenance.

Low First Cost Compared to a Water Source Heat Pump System

• Installed tonnage can be reduced up to 20 percent by taking advantage of building diversity and VAV flexibility.
• Condenser water piping and condensate piping are centralized.

Low First Cost Compared to a Central System

• Factory packaged controls reduce field labor, installation time and costs.
• Minimizes need and cost for fire dampers and air shafts.
• Large equipment rooms and penthouses not needed.
• Condenser water available on each floor for tenant computer systems.

Economical Operation

• Free cooling year-round with waterside economizer.
• Floor-by-fIoor system results in energy savings since only air conditioners on floors requiring cooling need operate. Especially economical after normal building occupancy hours.
• Annual system energy consumption comparable to central chilled water system but with significant energy consumption reduction during partial occupancy and after-hours.
• Simple heating alternatives include perimeter radiation and fan-powered VAV.

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