Indoor Environmental Quality HVAC Assessment of Oakland Mills High School: November 16th, 2022 (HXOMHS20220000A8)

Assessor
Hummy Khan
Date
Outdoor Temperature
48°F
Relative Humidity
58%
Outdoor Dew Point
34°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
RTU-3 - Outside air dampers (OADs), appear to be100% open while the outside temperature is 48 degrees which is too cold for the OADs to 100% open. The OADs on other units are at minimum position or at least not 100% which is were RTU-3 OADs should be also.
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
AHU-5- Air bypass around filters, repeat finding.
Correct size
Yes
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
Yes
Present (not missing)
Yes
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
RTU-3 (McQuay) and RTU-7 (TRANE)- Condensate drain improperly terminated, repeat finding. RTU-2 (TRANE) broken condensate drain line.
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
Turned off due to heating season.
Cooling tower operational
Yes
Turned off due to heating season.
Heating Central Plant
Boiler operational
Yes
Misc. Comments
AHU-1- Opening in the intake air duct causing significant air leakage.
Work Order Number(s)
263153
Issues found durring this assessment have been assigned to the above work order(s).