Indoor Environmental Quality HVAC Assessment of Applications and Research Laboratory: April 21st, 2022 (HXXARL2022000089)

Assessor
Hummy Khan
Date
Outdoor Temperature
63°F
Relative Humidity
45%
Outdoor Dew Point
41°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 several rooftop units. No tag numbers on any exhaust fans except for one (EF-22).
Status
Running
Yes
Work Order Closed by Building Maintenance
Three rooftop units (RTU-4 and two other units with no tag numbers) - Not running.
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
Rooftop unit (RTU) SS #3- Outside air dampers (OADs) appeared to be 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
Rooftop unit (RTU) SS #3 - Outside air dampers very dirty.
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
RTU-1 - Air bypass around filter and between two filters. Another rooftop unit (no tag number) -Filter stored on wrong side of coil.
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
RTU-(Trane unit- No tag number) - No installation date or initials 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
Yes
Work Order Closed by Building Maintenance
Condensate drain on many rooftop units improperly terminated, for example RTU-7 and SS#3. In some cases, the condensate piping is not connected to the units.
Fans and Motors
Check OK Comments
Condition
Operational
Yes
Work Order Closed by Building Maintenance
Exhaust fan (no tag number) located near RTU-9 and EF-22 not running.
No unusual odors, noise, or vibration
Yes
Central Plant
Check OK Comments
Heating Central Plant
Boiler operational
Yes
Work Order Number(s)
233177
Issues found durring this assessment have been assigned to the above work order(s).