Indoor Environmental Quality HVAC Assessment of Oakland Mills Middle School: November 16th, 2022 (HXOMMS20220000A9)

Assessor
Hummy Khan
Date
Outdoor Temperature
42°F
Relative Humidity
87%
Outdoor Dew Point
38°F

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

Unit
Check OK Comments
Tag Number
Displayed
Yes
Work Order Closed by Building Maintenance
No tag numbers on any exhaust fans except one (EF-26), repeat finding.
Status
Running
Yes
Work Order Closed by Building Maintenance
Air handling unit (AHU-11) not running. HV-1 (kitchen) not running, repeat finding.
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
AHU-11 - Outside air dampers (OADs) 100% open and return air dampers 100% closed while the unit not running. AHU-2 OADs barely open.
Return air damper: no obstructions
Yes
Work Order Closed by Building Maintenance
AHU-11 - Return air dampers 100% closed while the unit not running
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-1, AHU-2 and AHU-4 - Air bypass around filters.
Correct size
Yes
Work Order Closed by Building Maintenance
AHU-1, AHU-2 and AHU-4 - Incorrect size filters.
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
Yes
Work Order Closed by Building Maintenance
AHU-2 - One filter coming out of the track.
Present (not missing)
Yes
Date and initials written
Yes
Work Order Closed by Building Maintenance
AHU-10 and AHU-12- No date/initials of the installing tech on final filter.
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
Kitchen dishwasher exhaust fan not running even after turning the switch on in the kitchen. Except for EF-26, none of the exhaust fans running.
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
Work Order Closed by Building Maintenance
Heavy algae build up due to lack of cleaning and proper chemical treatment as required. Turned off due to heating season,
Heating Central Plant
Boiler operational
Yes
Misc. Comments
Brand new filters laying open on top of HV-1.
Work Order Number(s)
263231
Issues found durring this assessment have been assigned to the above work order(s).