1130 W MARINE VIEW DR MARITIME INSTITUTE 2024-06-24

NEUD ORFER H -6 ENGINEERS -4 AN Integra COMPANY WW. W NEUDORFERENGI NEERS.COM PROJECT PAC Maritime Institute Change Order LOCATION Everett, WA EXECUTIVE SUMMARY The scope of work for this job was to test and balance new HVAC equipment serving the area of the project: Fan coil units AH-1; AH-2; Exhaust fans EF-1 EF-2. Existing EF-3 was removed. The project has been balanced per plans and specifications using the National Environmental Balancing Bureau (NEBB) standards and procedures. The fans have been checked for fan data, operating amperage, voltage, and operating static pressure. All supply air outlets have been proportioned to ± 10% of the percentage of total airflow of the system unless otherwise noted. Balancing diagrams are attached to this report with outlets numbered for locations. Fan Coil Unit AH-1 AH-1 is a direct drive unit equipped with ECM motor operating at multiple speeds. The supply fan is designed to deliver airflow of 1610 CFM and it is delivering 1810 CFM (112% of design) when electrical motor is operating at Low speed. Fan Coil Unit AH-2 AH-2 is a direct drive unit equipped with ECM motor operating at multiple speeds. The supply fan is designed to deliver airflow of 1850 CFM and it is delivering 1940 CFM (105% of design) when electrical motor is operating at High speed. Exhaust Fan EF-1 EF-1 serves restroom 107. This single speed direct drive unit is designed to provide airflow of 110 CFM and it is providing 75 FCM (68% of design). Exhaust Fan EF-2 EF-1 serves restroom 108. This single speed direct drive unit is designed to provide airflow of 110 CFM and it provides 80 FCM (73% of design). Both fans have flexible ducts connecting the discharge side of the fan to the outside of the building. The static pressure measured on the discharge side of the fans is +0.2 inches WC. See the report for details.