Indoor Environmental Quality HVAC Assessment of Clarksville Elementary School: November 11th, 2022 (HXXCES20220000A7)

Assessor
Hummy Khan
Date
Outdoor Temperature
69°F
Relative Humidity
95%
Outdoor Dew Point
67°F

Air Handling Unit (Assess representative sample of RTU/AHU, including Portables)

Unit
Check OK Comments
Tag Number
Displayed
Yes
Status
Running
Yes
Outdoor Air Intake and Outdoor Air Dampers
Check OK Comments
Outdoor Pollution
Free from pollution sources w/i 25 ft. (e.g. dumpster, chimney, etc.)
Yes
Louvers and Access Doors
Operating properly
Yes
Deflectors & Screens
Present
Yes
No debris
Yes
Dampers
Outside air damper: no obstructions
Yes
Work Order Closed by Building Maintenance
ACU-1 and ACU-2- Outside air dampers (OADs) appeared to be 100% closed.
Return air damper: no obstructions
Yes
Mixing Plenum
Check OK Comments
Clean
No excess dirt, not used for storage
Yes
Work Order Closed by Building Maintenance
OAAHU-4 - Standing water in the mixing plenum. Des Champ Unit - Intake hood dirty.
Insulation
Secure and Clean
Yes
P-Trap (if present)
Charged with liquid
Yes
Filters and Coils
Check OK Comments
Filters
Free of any bypassing
Yes
Work Order Closed by Building Maintenance
OAAHU-3- Air bypass between filters due to gap between filters. OAAHU-4-Air bypass around filter because it's coming out from it's place.
Correct size
Yes
Free from excessive loading, dampness or odor
Yes
Work Order Closed by Building Maintenance
OAAHU-1- Filters are wet and dirty and tree leaves are stuck on them. Also, the pressure gauge for the filters' pressure drop appears to be elevated. OAAHU-2 and OAAHU-4 -The filters feel wet to the touch.
Not collapsed/not fallen off
Yes
Work Order Closed by Building Maintenance
OAAHU-3 - Gap between the filters. OAAHU-4 - Filter coming out from it's place due to improper placement and causing air bypass.
Present (not missing)
Yes
Work Order Closed by Building Maintenance
OAAHU-2 - Second set of filters missing.
Date and initials written
Yes
Work Order Closed by Building Maintenance
OAAHU-2, OAAHU-3, OAAHU-4, ACU-1, and ACU-2 - Filters dated July 2021, past due per HCPSS filter change program. OAAHU-1- No installation date and name initials of the installing technician on the filters.
Heating Coils
Clean, no noticeable leaks, or obstructions
Yes
Cooling Coils
Clean, no noticeable leaks, or obstructions
Yes
Access: Free of any obstructions in area that may affect access
Yes
Condensation: No excess condensation problems
Yes
Blowoff: Free of water from coil blowoff
Yes
Condensate Pan and Drain Line
No visible bacterial or fungal growth
Yes
Clean, no residue, no standing water
Yes
No Overflow, leakage, blockage, or damage
Yes
Proper slope, drain line ok, drainage acceptable, discharge okay
Yes
Fans and Motors
Check OK Comments
Condition
Operational
Yes
Work Order Closed by Building Maintenance
Exhaust Fan (EF)-4, EF-6 and EF-7 - Not running.
No unusual odors, noise, or vibration
Yes
Work Order Closed by Building Maintenance
OAAHU-1 making a loud noise, repeat finding.
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Cooling tower operational
Yes
Heating Central Plant
Boiler operational
Yes
Portable(s)
Check OK Comments
Thermostat
Thermostat setting acceptable
Yes
Work Order Closed by Building Maintenance
Portable #260- "Change air filter" alarm on thermostat screen display.
Thermostat cover
Yes
Fan Mode Correct
Yes
Space Temperature Acceptable
Yes
Work Order Number(s)
262281
Issues found durring this assessment have been assigned to the above work order(s).