Indoor Environmental Quality HVAC Assessment of Lime Kiln Middle School: April 9th, 2024 (HXLKMS20240000FE)

Assessor
Hummy Khan
Date
Outdoor Temperature
48°F
Relative Humidity
83%
Outdoor Dew Point
43°F

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

Unit
Check OK Comments
Tag Number
Displayed
Yes
Status
Running
Yes
Work Order Closed by Building Maintenance
Outside Air Handling Unit (OAAHU-1) - Not running. Building Maintenance (HVAC) informed upon discovery.
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
Air Handling Unit (AHU-4) - outside air dampers (OADs) appeared to be closed.
Return air damper: no obstructions
Yes
Mixing Plenum
Check OK Comments
Clean
No excess dirt, not used for storage
Yes
Work Order Closed by Building Maintenance
AHU-2 - Excessive dirt build up on fan motor assembly.
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
OAHU-2 and AHU-2- Air filters bent and collapsing, causing air bypass.
Correct size
Yes
Free from excessive loading, dampness or odor
Yes
Work Order Closed by Building Maintenance
OAHU-2 - The filters on the dedicated outside air unit appear to have excessive loading because of the large (100%) volume of outside air it brings in and they should be replaced every six months, not one year. Refer to manufacturer's recommendation for filters replacement frequency.
Not collapsed/not fallen off
Yes
Work Order Closed by Building Maintenance
OAHU-2 and AHU-2- Air filters bent and collapsing, causing air bypass.
Present (not missing)
Yes
Work Order Closed by Building Maintenance
The units are designed to have two sets of filters, pre and final filters. Only one set of filters installed.
Date and initials written
Yes
Work Order Closed by Building Maintenance
AHU-1- No installation dates or initials of the installing technician on 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
Work Order Closed by Building Maintenance
Condensate drain improperly terminated on all units, repeat finding.
Fans and Motors
Check OK Comments
Condition
Operational
Yes
No unusual odors, noise, or vibration
Yes
Work Order Closed by Building Maintenance
Exhaust fans (EF-4 and EF-5) - Vibrating.
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Heating Central Plant
Boiler operational
Yes
Work Order Number(s)
18891
Issues found durring this assessment have been assigned to the above work order(s).