Air Conditioning - It IS a COOL Summer at Hive13

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Dave Velzy

Jun 30, 2021, 6:46:26 PM6/30/21

We ask members to Donate what they could to help Make Hive13 a COOL place this Summer. You stepped up, and the air conditioning is installed.

  • The contractor installed two 5 ton 13 seer condensing units on 1st floor roof

  • These are the largest units that the furnaces can handle. 

  • We closed Elevator #4 to keep the cool inside. 

  • Otherwise the cool air will drop straight down the elevator shaft to the basement. 

  • The 2701 building owners have agreed to replace the roll up door with a modern version that we can power and attach to our RFID system. Meanwhile elevator #4 has been down for repair of damage that came when rainwater backed up in the basement.  The elevator door replacement is going slow, but it will happen. Until then #5 elevator still works. 

But there is still more to do - We need a wall along the back to help keep in the cool.

What we have learned about the AC

  • It was advised that 10 tons is enough to reduce humidity and hold temperatures in the high 70’s

    • So far, so good, but we can do better

      • The Hive13 space does not have much sun load compared to most buildings

      • The building has a lot of thermal mass. Wall temp averaged ~ 80F last summer 

  • We were warned that the ductwork could become covered in condensation 

    • Condensation is happening - Solution – Insulation on the duct out to the first vent register

    • We have recycled mylar bubble food delivery bags to wrap the ducts this week

  • The Contractor found the outside condensers were covered with cottonwood lint

    • We need to put condenser cleaning on our schedule for next spring

    • Hosing off with a garden hose should be sufficient

  • The Contractor recommends MERV 8 filters and warns that higher MERV filters reduce efficiency

    • MERV 8 filters are now installed

  • The Contractor recommended that we close off the space with a wall along the back

    • The wall will allow us to stop losing our cool and lower the humidity

  • Exhaust fans for wood dust, hot crafts, welding, laser ... blow cool air out and suck in hot humid air

    • Wherever appropriate we should recycle the air through dust filter boxes

Dave Velzy

Todd Fegelman

Jul 1, 2021, 10:16:23 AM7/1/21

Thanks for the info and leadership!

 - Todd

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