Indoor Environmental Quality HVAC Assessment of Patuxent Valley Middle School: February 10th, 2021 (HXPVMS2021000033)

School
Patuxent Valley Middle School
Assessor
Hummy Khan
Date
Outdoor Temperature
41°F
Relative Humidity
52%
Outdoor Dew Point
25°F

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

Unit
Check OK Comments
Tag Number
Displayed
Yes
Status
Running
No
RAHU-6 and ICE (MUAU-1) not running. Informed the HVAC department while on site.
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
No
RAHU-7 - Outside air dampers appear to be closed.
Return air damper: no obstructions
Yes
Mixing Plenum
Check OK Comments
Clean
No excess dirt, not used for storage
No
ERU-1- A spare filter laying inside the unit in the outside air intake section.
Insulation
Secure and Clean
Yes
P-Trap (if present)
Charged with liquid
Yes
Filters and Coils
Check OK Comments
Filters
Free of any bypassing
No
RAHU-12 -Filters missing creating bypass. ERU-2 - Air bypass around filters.
Correct size
No
RAHU-2 and 5 - Incorrect size filters installed on multiple racks.
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
Yes
Present (not missing)
No
RAHU-12 - At least one filter missing on each rack from a total of three racks creating openings for bypass. RAHU-11- The entire set of pre-filters and majority of the final filters are missing.
Date and initials written
No
RAHU-6, RHU-8 and 9 - No dates and initials of installing technician on the filters.
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
No
Condensate drain on all rooftop units improperly terminated.
Fans and Motors
Check OK Comments
Condition
Operational
No
Exhaust fan-1, 2, 3, 4, 14, 17, 31, 33, 34 and 37 not running.
No unusual odors, noise, or vibration
Yes
Central Plant
Check OK Comments
Heating Central Plant
Boiler operational
Yes
Misc. Comments
Lot of inconsistency on the filters. Some pre-filters and final filters are MERV 13, some are MERV 10 and some are MERV 8. RAHU-1-pre-filters MERV 10 and Final filters MERV 8. RAHU-3-Final filters MERV 10 and pre-filters not marked. RAHU-4- Final filters MERV 10 on upper rack and MERV 13 on lower rack.

Building Maintenance (HVAC) visited the site on February 23 to further assess and have issues corrected.

Work Order: 180977
Work Order Number(s)
180977
Issues found durring this assessment have been assigned to the above work order(s).