Indoor Environmental Quality HVAC Assessment of St. John’s Lane Elementary School: May 3rd, 2023 (HSJLES20230000D9)

Assessor
Hummy Khan
Date
Outdoor Temperature
46°F
Relative Humidity
79%
Outdoor Dew Point
40°F

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

Unit
Check OK Comments
Tag Number
Displayed
Yes
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, partially open. For example, RTU-1, the OADs are 100% open, while on RAHU-B, the OADs are partially open comparatively. RAHU-A, ACU-1 and ACU-3 - OADs 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
ACU-1 and ACU-3- Filters dated June 2021, almost two years old. It appears that they were checked in February 2022 but were never replaced. These units have a single set (no pre-filter) of filters and should be replaced at least once a year.
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
No unusual odors, noise, or vibration
Yes
Work Order Closed by Building Maintenance
Exhaust Fan-5 - Rattling.
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Not running probably because the weather is still cold.
Cooling tower operational
Yes
Not running probably because the weather is still cold.
Heating Central Plant
Boiler operational
Yes
Portable(s)
Check OK Comments
Thermostat
Thermostat setting acceptable
Yes
Work Order Closed by Building Maintenance
Portable # 207, 252, and 253-Thermostat set on permanent hold, instead of running per schedule. Changed it to run on schedule while on site. Portable # 207- "Change air filter" is displayed.
Thermostat cover
Yes
Fan Mode Correct
Yes
Work Order Closed by Building Maintenance
Portable # 214- Fan was in "On" mode, instead of "Auto". Changed it to "Auto" while on site.
Space Temperature Acceptable
Yes
Misc. Comments
RAHU-B- The control panel door was open and the controls were exposed to the outdoor weather. Closed the door while on site but it won't latch properly. It is recommended Building Maintenance repair the door latch/lock.
Work Order Number(s)
282454
Issues found durring this assessment have been assigned to the above work order(s).