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Correct thermostat temperatures and modes (HVAC)

See this Asana task for history.

Our AC systems will fight each other if set to different modes - this dramatically increases our power bill and takes away money which could be used to buy consumables and other equipment. 

Read this doc in its entirety before changing anything

Ensuring correct temperatures

  1. Read the rest of this document first for context.
  2. If "Run Schedule" is visible, press it and mention this on #techs - this indicates that the thermostat was in a manual mode.
  3. Select "Set Clock/Day/Schedule", then" Set Schedule"
    1. Ensure "Wake" is set to 10AM, "Leave" and "Return" are unset, and "Sleep" is set to 9:45PM
       
    2. Ensure the set points for Wake and Sleep mode are set correctly for summer / winter weather (see below)
    3. Ensure that the schedule is set exactly the same for both MonTueWedThuFri and for SatSun

If the interface is unclear / confusing, see honeywell_manual.pdf around pg 10:

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Thermostat Locations

Digital thermostats:

  • There are two in the back shop - one by powder coat, one by general woodshop on the poles
  • One in the conference room
  • One in the studio by the woodshop door

Heater thermostats:

  • One in the forge; controls forge heater
  • 2 broken/unused thermostats in back shop - one by wood lathe exit door, other on wall by plastics/class supply room 

"Away" temperatures

Adjust set point by 10 degrees outside of business hours (higher on cool mode, lower on heat mode)

Summer

Only set to cool mode when the internal shop temperature exceeds 76F 

When the internal shop temperature exceeds 76F:

  • All digital thermostats:
    • Mode: Cool
    • Set point: 72F
    • "Sleep": 82F
    • Fan: Auto
  • Heater thermostats:
    • Forge: 55F
    • All others: OFF

Winter

Only set to heat mode when the internal shop temperature drops below 65F (or other cases below)

When the internal shop temperature drops below 65F, OR if >24h of below-freezing outside temperatures forecast, OR if temperatures below 0F forecast overnight:

  • All digital thermostats:
    • Mode: Heat
    • Set point: 65F
    • "Sleep": 55F
    • Fan: Auto
  • Heater thermostats:
    • Forge: 55F
    • All others: OFF
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