Indoor Environmental Quality HVAC Assessment of Dunloggin Middle School: February 7th, 2024 (HXXDMS20240000F1)

Assessor
Hummy Khan
Date
Outdoor Temperature
33°F
Relative Humidity
63%
Outdoor Dew Point
23°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 most of the exhaust fans.
Status
Running
Yes
Work Order Closed by Building Maintenance
AHU-8, 9, and 11 - Not running at the time of assessment.
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
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-1 - Filter end bracket for pre-filters was not installed and standing on the side leaning against the final filter. While there, the filters were reinstalled and the bracket put back but there was only one screw instead of three that are required for proper filter installation. This was just a temporary solution to prevent filters from getting pushed out again but not sure how long the temporary fix is going to last. The bracket needs to be properly installed with all three screws. Also, no installation date and initials on pre-filters. AHU-2- Similar issue as AHU-1 above except there was no bracket I could find to reinstall it. AHU-4- Incorrect size final filters installed causing air bypass. Also, two different types of final filters installed at the top and bottom. AHU-5- Two different types of final filters installed. Incorrect size pre-filters, causing air bypass. RTU-6- Incorrect size pre-filter and final filters installed. Plus filter end bracket does not appear to be of proper size and also bent and won’t go in the filter track completely causing air bypass.
Correct size
Yes
Work Order Closed by Building Maintenance
AHU-4- Incorrect size final filters installed causing air bypass. AHU-5- Incorrect size pre-filters, causing air bypass. RTU-6- Incorrect size pre-filter and final filters installed.
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
Yes
Present (not missing)
Yes
Date and initials written
Yes
Work Order Closed by Building Maintenance
AHU-5 - No installation date or initials on pre-filters.
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
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
Portable(s)
Check OK Comments
Thermostat
Thermostat setting acceptable
Yes
Thermostat cover
Yes
Work Order Closed by Building Maintenance
Portable # 238- Thermostat guard broken. Portable # 239- Thermostat in alarm "Change Air Filter".
Fan Mode Correct
Yes
Space Temperature Acceptable
Yes
Misc. Comments
A few spare filters laying open on top of a ductwork in the main penthouse collecting dust. New filters should be stored inside box as not to reduce performance.
Work Order Number(s)
12004
Issues found durring this assessment have been assigned to the above work order(s).