Indoor Environmental Quality HVAC Assessment of Laurel Woods Elementary School: January 5th, 2023 (HXLWES20230000B2)

Assessor
Hummy Khan
Date
Outdoor Temperature
54°F
Relative Humidity
74%
Outdoor Dew Point
45°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, repeat finding.
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
Work Order Closed by Building Maintenance
RTU-7- Mixed air section access door handle broken and coming out and was not able to open the door. Tried to tighten the screws while on site but due to rust was not able to do so. Screws rusted and stripped and need to be replaced and handle properly installed. Repeat Finding.
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 only partially open.
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
Work Order Closed by Building Maintenance
OARTU-2 - Air bypass due to fallen filter.
Correct size
Yes
Free from excessive loading, dampness or odor
Yes
Not collapsed/not fallen off
Yes
Work Order Closed by Building Maintenance
OARTU-2- One filter fallen off.
Present (not missing)
Yes
Date and initials written
Yes
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
Work Order Closed by Building Maintenance
Munters RTU (no tag number-located on the highest roof) - Condensate drain line broken.
Proper slope, drain line ok, drainage acceptable, discharge okay
Yes
Work Order Closed by Building Maintenance
Condensate drain on all rooftop units improperly terminated, repeat finding.
Fans and Motors
Check OK Comments
Condition
Operational
Yes
Work Order Closed by Building Maintenance
Exhaust fan near RTU-11 - Not running.
No unusual odors, noise, or vibration
Yes
Work Order Closed by Building Maintenance
One exhaust fan (near Munters RTU on the highest roof) and another exhaust fan near OARTU-3 - Excessive noise.
Central Plant
Check OK Comments
Chilled Water Central Plant
Chiller operational
Yes
Not operational due to heating season.
Cooling tower operational
Yes
Not operational due to 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 133- System was set in "Heat" mode instead of "Auto". Changed it to "Auto" while on site.
Thermostat cover
Yes
Work Order Closed by Building Maintenance
Portable 133 - Thermostat front cover was unlocked and was attached upside down. Properly placed and locked the thermostat cover while on site.
Fan Mode Correct
Yes
Space Temperature Acceptable
Yes
Misc. Comments
One of the exhaust fans' hood is blown off and laying on roof far away from the exhaust fan.
Work Order Number(s)
269264
Issues found durring this assessment have been assigned to the above work order(s).