Indoor Environmental Quality HVAC Assessment of Clarksville Elementary School: February 4th, 2021 (HXXCES2021000031)

School
Clarksville Elementary School
Assessor
Hummy Khan
Date
Outdoor Temperature
43°F
Relative Humidity
31%
Outdoor Dew Point
16°F

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

Unit
Check OK Comments
Tag Number
Displayed
No
No tag numbers on AAON rooftop units and several exhaust fans.
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
No
RAHU-1 Outside air dampers (OADs) appear to be closed. Two AAON units near OAAHU-2 OADs closed.
Return air damper: no obstructions
Yes
Mixing Plenum
Check OK Comments
Clean
No excess dirt, not used for storage
Yes
Insulation
Secure and Clean
Yes
P-Trap (if present)
Charged with liquid
Yes
Filters and Coils
Check OK Comments
Filters
Free of any bypassing
No
OAAHU-1 and OAAHU-2 - Air bypass due to filters fallen off and/or bent.
Correct size
Yes
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
No
OAAHU-1, OAAHU-2 and OAAHU-3 - Filters fallen off and bent. While on site managed to put two filters back on but unable to do the rest of them due to strong air pressure. The filter clips need to be properly installed for filters to stay in place.
Present (not missing)
No
AHU-2- Final filters missing.
Date and initials written
No
No initials on filters of installing technicians.
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
No
Exhaust fans EF-8 and 9 - Not running may be for kitchen and controlled by a switch. EF near RAHU-1 not running.
No unusual odors, noise, or vibration
Yes
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
No
Not operational due to heating season.
Cooling tower operational
No
Not operational due to heating season.
Heating Central Plant
Boiler operational
Yes
Portable(s)
Check OK Comments
Thermostat
Thermostat setting acceptable
No
Portable # 160 and 259- Maintaining occupied temperature set point while unoccupied.
Thermostat cover
Yes
Fan Mode Correct
Yes
Space Temperature Acceptable
Yes
Misc. Comments
Note: Building Maintenance (HVAC) is currently re-reviewing schools for in-person learning. The findings above may have already been addressed by the HVAC Department.

Work Order: 180520
Work Order Number(s)
180520
Issues found durring this assessment have been assigned to the above work order(s).