Indoor Environmental Quality HVAC Assessment of West Friendship Elementary School: April 5th, 2023 (HXWFES20230000C9)

Assessor
Hummy Khan
Date
Outdoor Temperature
59°F
Relative Humidity
100%
Outdoor Dew Point
59°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 or Deschamp Rooftop Units (RTUs).
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
Inconsistency on the position of the outside air dampers (OADs) from one unit to the other. On some units, OADs appear to be 100% open, while on others partially open. For example, Air Handling Unit (AHU)-11, the OADs are 100% open, while on AHU-10, they are less open. AHU-6, AHU-7 and AHU-9 - OADs are 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
Correct size
Yes
Free from excessive loading, dampness or odor
Yes
Work Order Closed by Building Maintenance
AHU-8- Filters have water stains on them.
Not collapsed/not fallen off
Yes
Present (not missing)
Yes
Date and initials written
Yes
Work Order Closed by Building Maintenance
Units with only one set of single filters (not pre-filters and final filters arrangement) should be replaced once a year. On many AHUs no date or installing technician initials on the filters, for example AHU-10.
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
Exhaust fan (no tag number) located near a Deschamp AHU - Rattling.
No unusual odors, noise, or vibration
Yes
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Cooling tower operational
Yes
Heating Central Plant
Boiler operational
Yes
Portable(s)
Check OK Comments
Thermostat
Thermostat setting acceptable
Yes
Thermostat cover
Yes
Fan Mode Correct
Yes
Space Temperature Acceptable
Yes
Work Order Number(s)
279485
Issues found durring this assessment have been assigned to the above work order(s).