Indoor Environmental Quality HVAC Assessment of Guilford Elementary School: April 10th, 2022 (HXXGES2022000084)

Assessor
Hummy Khan
Date
Outdoor Temperature
58°F
Relative Humidity
38%
Outdoor Dew Point
32°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
Smaller rooftop unit located near AHU-3 - No tag number.
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
All Rooftop Units - Outside air dampers (OADs) appear to be 100% open (economizer mode) except RTU-8, which were less open comparatively. At the time of the inspection, the outdoor weather conditions appear to be conducive for the use of economizer mode. The OADs for RTU-8 should be 100% open as well.
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
RTU-8- Inside of access door for outside air intake and the relief fan section is dirty.
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
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
AHU-3- Broken condensate drain line. Smaller rooftop unit (no tag number) located near AHU-3-Condensate drain improperly terminated.
Fans and Motors
Check OK Comments
Condition
Operational
Yes
No unusual odors, noise, or vibration
Yes
Central Plant
Check OK Comments
Heating Central Plant
Boiler operational
Yes
Portable(s)
Check OK Comments
Thermostat
Thermostat setting acceptable
Yes
Work Order Closed by Building Maintenance
Portable #243 and #244 - Thermostat display screen says "change air filter" and " Cancel alarm."
Thermostat cover
Yes
Fan Mode Correct
Yes
Space Temperature Acceptable
Yes
Work Order Number(s)
231647
Issues found durring this assessment have been assigned to the above work order(s).