Indoor Environmental Quality HVAC Assessment of Hammond Elementary School: April 4th, 2022 (HXXHES2022000081)

Assessor
Hummy Khan
Date
Outdoor Temperature
46°F
Relative Humidity
46%
Outdoor Dew Point
27°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 a few rooftop units (RTUs). For example, the Trane unit closest to the roof access hatch does not have a tag number. No tag number on some exhaust fans.
Status
Running
Yes
Work Order Closed by Building Maintenance
The exhaust fans for the two staff bathrooms near the middle school staff lounge are not working.
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, while on others the OADs are partially open. Example: RTU-14 - the OADs are 100% open while on RTU-13 the OADs are not as open. RTU-20- OADS 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
Trane rooftop unit (no tag number, closest to the roof access hatch and another one (no tag number)) - Mixed air chamber dirty. For many other rooftop units, the mixed air section is very dirty. The Maintenance Department should check all the units mixed air sections and clean as necessary.
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
On some units the filters have both installation date and name initials of the installing technician but other units have just the date.
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
Three rooftop units (no tag numbers) located on a grate platform - 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
RTU-17 and RTU-20- Relief/return fan loud and appears to be unstable. Portable # 256 - Unit making excess noise.
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 #256- Incorrect date and time setting on the thermostat display screen.
Thermostat cover
Yes
Fan Mode Correct
Yes
Space Temperature Acceptable
Yes
Misc. Comments
Hammond Middle School and Hammond Elementary School are within the same building and some components of the HVAC systems are common to both schools. The findings reported here are also reported under Hammond Middle School.
Work Order Number(s)
230951
Issues found durring this assessment have been assigned to the above work order(s).