Indoor Environmental Quality HVAC Assessment of Atholton High School: October 25th, 2022 (HXXAHS20220000A3)

Assessor
Hummy Khan
Date
Outdoor Temperature
58°F
Relative Humidity
96%
Outdoor Dew Point
57°F

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

Unit
Check OK Comments
Tag Number
Displayed
Yes
Status
Running
Yes
Work Order Closed by Building Maintenance
RAHU-11- Not running. It appears that the variable frequency drive (VFD) is in "External Default" with red light on.
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
Inconsistency on the position of the outside air dampers (OADs) from one unit to the other. On some units OADs appear to be 100% open and on other units 100% closed while on some others partially open. For example, RAHU-8, OADs are 100% open and RAHU-6 100% 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
Yes
Work Order Closed by Building Maintenance
RAHU-4 and RAHU-8 - Air bypass due to end cover plate missing and on RAHU-8 second air bypass due to incorrect size filter on upper rack of final filters.
Correct size
Yes
Work Order Closed by Building Maintenance
RAHU-8 - Incorrect size filter on upper rack of final filters.
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
Yes
Present (not missing)
Yes
Work Order Closed by Building Maintenance
RAHU-8 and few other units - Pre-filters missing.
Date and initials written
Yes
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
Work Order Closed by Building Maintenance
RHPU-7 - Condensate drain line broken, repeat finding.
Fans and Motors
Check OK Comments
Condition
Operational
Yes
No unusual odors, noise, or vibration
Yes
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Cooling tower operational
Yes
Heating Central Plant
Boiler operational
Yes
Work Order Number(s)
259951
Issues found durring this assessment have been assigned to the above work order(s).