Everett School District, Washington

Everett Elementary School #17- Forest View Elementary

Systems Commissioned:  Project included Cx of 2-Pipe AHU's, Dx cooling AHU's, Roof Top Heat Recovery Unites, WH's, Dx Split system AC's, Variable Air Units (VAV's), Fan Terminal Units (FTU's), Hydronic Pumps, and Kitchen Hood Exhaust Fans.  BAS control system included Alerton Automated  Control System.

Our commissioning services focused on mechanical and electrical systems throughout the course of the projects design and during construction.  During the commissioning we brought a positive, collaborative approach to ensuring the Everett Elementary School #17's systems operated accoring to the design team's specifications.  Below is a short list of key issues that were reported professionally and promptly to both the client and the design team in order for the system or installation deficiencies to be addressed in a timely manner.

  • DCP-02 domestic circulation pump has a loud vibration when running.  The noise could be heard even when the door was closed.
  • FTU-206 was slightly resting on a sprinkler line which in the future may transmit noise throughout the room.
  • During the balancing back check, we noticed that a number of classroom VAVs had incorrect permanent labels.  the first floor units and second floor units were swapped.
  • The schedule calls out for speed controls on the direct drive exhaust fans; however, none of the EF's units had these installed. 
  • The main bolier, B-1, had a loud vibration in the exhaust flue when running above 53% capacity. Mufflers may need to be installed if this cannot be eliminated.
  • An intermittent knocking could be heard within the ceiling of room A206 and A207.  It sounded like it may be a heating valve shutting making the hydronic water lines bang.

 

 
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