Indoor Environmental Quality HVAC Assessment of Rockburn Elementary School: June 12th, 2023 (HXXRES20230000E5)

Assessor
Hummy Khan
Date
Outdoor Temperature
76°F
Relative Humidity
69%
Outdoor Dew Point
65°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
Two Mammoth and two AAON rooftop units don't appear to have tag numbers.
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-1, RTU-2 and RTU-3 - Outdoor Air Dampers (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
Yes
Work Order Closed by Building Maintenance
RAHU-7- Air bypass due to ripped and fallen off filter. RTU-3 (AAON) - Air bypass around filter.
Correct size
Yes
Free from excessive loading, dampness or odor
Yes
Work Order Closed by Building Maintenance
RAHU-5 - The pre-filters are dated July 2021, almost approaching two years. Since these are energy recovery units and bring 100% outside air, the filters should be replaced at least once a year. RAHU-9 - Filters have excessive loading and should be replaced more frequently.
Not collapsed/not fallen off
Yes
Work Order Closed by Building Maintenance
RAHU-7- One filter ripped and fallen off.
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
Fans and Motors
Check OK Comments
Condition
Operational
Yes
No unusual odors, noise, or vibration
Yes
Work Order Closed by Building Maintenance
Exhaust fan-14 - Minor vibration.
Central Plant
Check OK Comments
Heating Central Plant
Boiler operational
Yes
Misc. Comments
RAHU-1 and RAHU-5 - Energy wheel activated. RAHU-12 - The energy wheel is not activated. Inconsistency among units.

RAHU-8- Filter pressure gauge not working.
Work Order Number(s)
287127
Issues found durring this assessment have been assigned to the above work order(s).