Medical Office Building Thrives With Advanced Control Sequences.

The airside economizer control maximizes operation by Post-Retrofi t Period Energy Consumption (kWh/Week) 100,000 80,000 60,000 40,000 20,000 0 Retrofi t Period Baseline Period Savings Start Of Installation Commissioning Complete Cutover Complete Baseline Energy Cooling Degree Days Base - 50°F Business as Usual Measured Energy Total CDD-50 Per Week 250 200 150 100 50 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2018 | 2019 FIGURE 3 Chilled water energy savings. Post-Retrofi t Period Energy Consumption (Therms/Week) 2,500 2,000 1,500 1,000 500 0 Retrofi t Period Baseline Period Savings Start Of Installation Commissioning Complete Cutover Complete Baseline Energy Cooling Degree Days Base - 50°F Business as Usual Measured Energy Total HDD-65 Per Week 250 200 150 100 50 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2018 | 2019 FIGURE 2 Hot water energy savings. Features of the mechanical design and Guideline 36 sequences include: • Airside economizers; • Low velocity plenum return path and variable speed propeller relief fans, which use passive relief as the fi rst stage of building pressure control; Post-Retrofi t Period Energy Consumption (kWh/Week) 50,000 40,000 30,000 20,000 10,000 0 Retrofi t Period Baseline Period Savings Start Of Installation Commissioning Complete Cutover Complete Baseline Energy Cooling Degree Days Base - 50°F Business as Usual Measured Energy Total CDD-50 Per Week 250 200 150 100 50 0 Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2018 | 2019 FIGURE 1 Whole building energy savings. [Extracted from the article]