Indoor Environmental Quality HVAC Assessment of Centennial High School: December 6th, 2022 (HXXCHS20220000AE)

Assessor
Hummy Khan
Date
Outdoor Temperature
41°F
Relative Humidity
93%
Outdoor Dew Point
40°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 number on one exhaust fan.
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, the OADs appear to be 100% open and on others, 100% closed, while on others partially open. For example, AHU-1 and AHU-2, the OADs are 100% open, while on AHU-4 the are partially open. AHU-3 - The OADs are 100% 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
Not collapsed/not fallen off
Yes
Present (not missing)
Yes
Date and initials written
Yes
Work Order Closed by Building Maintenance
Rooftop Unit - 3 (RTU-3) - Filter dated July 2021. Should be replaced once a year per the HCPSS standard filter replacement schedule. No initials on the filters of the installing technician on any units.
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
Trane RTU-1 and RTU-2 - Condensate drain improperly terminated.
Fans and Motors
Check OK Comments
Condition
Operational
Yes
No unusual odors, noise, or vibration
Yes
Work Order Closed by Building Maintenance
Exhaust fan (no tag number, center of building) - Excessive noise.
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Work Order Closed by Building Maintenance
Chiller not operational - This has been reported to the HVAC Department. HVAC Department confirmed and reported they are working to get it repaired.
Cooling tower operational
Yes
Turned off for the heating season.
Heating Central Plant
Boiler operational
Yes
Portable(s)
Check OK Comments
Thermostat
Thermostat setting acceptable
Yes
Work Order Closed by Building Maintenance
Portable 218 and 219 - The system was set in "Heat" position. Changed to "Auto" position, while on site, which is the correct position.
Thermostat cover
Yes
Work Order Closed by Building Maintenance
Portable 218 - Thermostat lock box loose at the wall mount and needs to properly re-anchored into the wall.
Fan Mode Correct
Yes
Work Order Closed by Building Maintenance
Portable 218 - Fan was set in "On" position. Changed to "Auto" position, while on site, which is the proper position.
Space Temperature Acceptable
Yes
Misc. Comments
Automatic temperature control compressor in the mechanical room making excessive noise.
Work Order Number(s)
266005
Issues found durring this assessment have been assigned to the above work order(s).