Indoor Environmental Quality HVAC Assessment of Oakland Mills Middle School: December 1st, 2020 (HXOMMS2020000021)

Assessor
Hummy Khan
Date
Outdoor Temperature
43°F
Relative Humidity
62%
Outdoor Dew Point
30°F

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

Unit
Check OK Comments
Tag Number
Displayed
No
No tag numbers on most of the exhaust fans.
Status
Running
No
HV-1 - Not operational.
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
AHU-1 - Outside air dampers are open, but not as much as AHU-2.
Return air damper: no obstructions
No
AHU-2 - Return air dampers less open, compared to AHU-1.
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
AHU-1, 2, 3, 4 - Incorrect size filters or blank plate missing causing air bypass.
Correct size
No
AHU-1, 2, 3, 4 - Incorrect size filters or blank plate missing.
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
Yes
Present (not missing)
No
AHU-5- Cover plate installed in lieu of one final filter.
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
Fans and Motors
Check OK Comments
Condition
Operational
No
Many exhaust fans not working.
No unusual odors, noise, or vibration
Yes
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Not operational due to heating season.
Cooling tower operational
No
Not operational due to heating season. Basin and fins very dirty and rusting. Needs proper chemical treatment and thorough cleaning.
Heating Central Plant
Boiler operational
Yes
Misc. Comments
Temperature gauges on all air handling units not working. AHU-12- Fan pulley cover laying on floor of the unit.

Work Order: 175009
Work Order Number(s)
175009
Issues found durring this assessment have been assigned to the above work order(s).