HVAC Inspection Checklist

Use the HVAC Inspection Checklist to ensure optimal HVAC performance by inspecting air dampers, spray humidifiers, etc. for efficient heating and cooling.

HVAC Inspection Checklist



Cooling Coil

1. Is there inspection access?


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2. Is it clean?


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3. What is the supply water temperature?


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4. Is there any water carryover?


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5. Are there any indications of condensation problems?


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Return Air Plenum

1. Are tiles in place?


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2. Are there no unintentional openings?


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3. Are there return grilles?


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4. Is there balancing capability?


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5. Is there a noticeable flow of air?


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6. Are transfer grilles present?


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7. Are fire dampers open?


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Condensate Drip Pans

1. Are they accessible to inspect and clean?


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2. Are they clean with no residue?


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3. Is there no standing water or leaks?


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4. Is there any noticeable odor?


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5. Is there visible growth (e.g., slime)?


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6. Are drains and traps clear and working?


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7. Are they trapped in an air gap?


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8. Is there any water overflow?


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Ducted Returns

1. Have they been balanced within 3-5 years?


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2. Are grilles unobstructed?


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3. Is the return air path unobstructed?


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Mist Eliminators

1. Are they clean, straight, with no carryover?


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Return Fan Chambers

1. Are they clean with no trash or storage?


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2. Is there no standing water?


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3. Are floor drain traps wet or sealed?


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4. Are there no air leaks?


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5. Do doors close tightly and are they kept closed?


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Supply Fan Chambers

1. Are they clean?


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2. Is there no trash or storage?


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3. Are floor drain traps wet or sealed?


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4. Are there no air leaks?


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5. Do the doors close tightly?


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Return Fans

1. What is their location?


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2. Are fan blades clean?


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3. Are belt guards installed?


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4. Is there proper belt tension?


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5. Is there excess vibration?


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6. Are there corrosion problems?


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7. Are controls working and calibrated?


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8. Does the control sequence conform to design/specifications?


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Supply Fans

1. What is the location?


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2. Are fan blades clean?


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3. Are belt guards installed?


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4. Is there proper belt tension?


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5. Is there excess vibration?


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6. Are there corrosion problems?


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7. Are controls operational and calibrated?


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8. Does the control sequence conform to design/specifications?


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9. Are there no pneumatic leaks?


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Exhaust Fans

1. Are they central?


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2. If distributed, what are their locations?


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3. Are they operational?


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4. Are controls operational?


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5. Are they for toilet exhaust only?


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6. Is there gravity relief?


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7. What is the total powered exhaust in cubic feet per minute (cfm)?


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8. Is make-up air sufficient?


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Heating Coil

1. Is there inspection access?


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2. Is it clean?


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3. Does the control sequence conform to design/specifications? (Please describe any changes.)


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4. What is the supply water temperature?


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5. What is the discharge thermostat temperature setting?


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Toilet Exhausts

1. Are fans working during occupied hours?


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2. Are registers open and clear?


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3. Is the make-up air path adequate?


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4. Is the volume according to code?


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5. Are floor drain traps wet or sealable?


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6. Do bathrooms run slightly negative relative to the building?


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Reheat Coils

1. Are they clean?


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2. Are they not obstructed?


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3. Are they operational?


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Smoking Lounge Exhaust

1. Does the room run negative relative to the building?


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Steam Humidifier

1. What type of humidifier is it?


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2. Is treated boiler water used?


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3. Is there any standing water?


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4. Is there visible growth?


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5. Are there mineral deposits?


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6. What is the control setpoint?


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7. What is the high limit setpoint?


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8. Is there a duct liner within 12 feet? (If so, check for dirt, mold growth.)


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Print Room Exhaust

1. Does the room run negative relative to the building?


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Outside Air Intake

1. Where is it located?


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2. Is it open during occupied hours?


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3. Is it unobstructed?


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4. Is there standing water, bird droppings in the vicinity?


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5. Are there odors from outdoors? (Please describe.)


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6. Is there carryover of exhaust heat?


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7. Is the cooling tower within 25 feet?


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8. Is the exhaust outlet within 25 feet?


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9. Is the trash compactor within 25 feet?


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10. Is it near a parking facility, busy road, or loading dock?


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Supply Ductwork

1. Is it clean?


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2. Is it sealed and are there no leaks and tight connections?


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3. Are fire dampers open?


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4. Are access doors closed?


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5. Are there lined ducts?


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6. Is the flex duct connected with no tears?


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7. Is there a light troffer supply?


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8. Has it been balanced within 3-5 years?


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9. Was it balanced after recent renovations?


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10. Are there any short circuiting or other air distribution problems?


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Garage Ventilation

1. Does it operate according to codes?


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2. Do fans, controls, and dampers all operate?


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3. Is the garage slightly negative relative to the building?


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4. Do doors to the building close tightly?


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5. Is there a vestibule entrance to the building from the garage?


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Bird Screen

1. Is it unobstructed?


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2. What is the general condition?


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3. Is the size of the mesh at least 1 ⁄2" minimum?


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Pressurized Ceiling Supply Plenum

1. Are there no unintentional openings?


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2. Are all ceiling tiles in place?


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3. Is barrier paper correctly placed and in good condition?


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4. Is there a proper layout for air distribution?


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5. Are supply diffusers open?


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6. Are supply diffusers balanced?


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7. Is there a noticeable flow of air?


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8. Are there any short circuiting or other air distribution problems?


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Mechanical Rooms

1. What is the general condition?


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2. Are controls operational?


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3. Is the compressor operational and Is the air dryer operational for pneumatic controls?


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4. Are the electric controls operational?


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5. For EMS (Energy Management System) or DDC (Direct Digital Control), are the following checked: Is the operator on site?


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6. For EMS (Energy Management System) or DDC (Direct Digital Control), are the following checked: Is it controlled off-site?


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7. For EMS (Energy Management System) or DDC (Direct Digital Control), are the following checked: Are fans cycled "off" while the building is occupied?


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8. For EMS (Energy Management System) or DDC (Direct Digital Control), are the following checked: Is the chiller reset to shed load?


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Outside Air Dampers

1. Is the operation acceptable?


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2. Do they seal when closed?


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3. Are the actuators operational?


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Terminal Equipment (supply)

1. Are housing interiors clean and unobstructed?


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2. Are controls working?


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3. Are they delivering the rated volume?


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4. Have they been balanced within 3-5 years?


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5. Are filters in place?


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6. Are condensate pans clean and draining freely?


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Preventive Maintenance

1. Are spare parts inventoried?


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2. Are spare air filters available?


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3. Is the control drawing posted?


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4. Is the preventive maintenance (PM) schedule available?


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5. Is the PM followed?


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Outdoor Air (O.A.) Quantity (Check Against Applicable Codes And ASHRAE 62-1989)

1. What is the minimum % O.A.?


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2. What is the measured % O.A.?


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3. What is the maximum % O.A.?


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4. Is the minimum O.A. a separate damper?


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5. For VAV systems: is O.A. increased as total system airflow is reduced?


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VAV Box

1. What is the minimum stop %?


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2. What is the minimum outside air % (from page 2 of this form)?


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3. What is the minimum airflow in cubic feet per minute (cfm)?


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4. What is the minimum outside air cfm?


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5. What is the supply setpoint in degrees Fahrenheit (summer)? In degrees Fahrenheit (winter)?


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Boilers

1. Are flues and breeches tight?


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2. Is the purge cycle working?


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3. Are door gaskets tight?


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4. Is the fuel system tight with no leaks?


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5. Is there sufficient combustion air (at least 1 square inch free area per 2000 Btu input)?


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Mixing Plenum

1. Is it clean?


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2. Is the floor drain trapped?


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3. What is the airtightness of outside air dampers?


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4. What is the airtightness of return air dampers?


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5. What is the airtightness of exhaust air dampers?


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6. Are all damper motors connected?


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7. Are all damper motors operational?


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8. Are air mixers or opposed blades used?


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9. What is the mixed air temperature control setting in degrees Fahrenheit?


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10. What is the freeze stat setting in degrees Fahrenheit?


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11. Is the mixing plenum under negative pressure?


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Thermostats

1. What type are they?


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2. Are they properly located? 


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3. Are they working?


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4. What are the setpoints in summer and in winter?


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5. What is the space temperature?


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Cooling Tower

1. Is the sump clean?


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2. Are there no leaks or overflow?


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3. Are eliminators working with no carryover?


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4. Is there no slime or algae?


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5. Is the biocide treatment working?


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6. Is the dirt separator working?


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Filters

1. What type of filter is used?


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2. Is there complete coverage (i.e., no bypassing)?


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3. What is the correct pressure drop? (Compare to the manufacturer's recommendations)


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4. Are contaminants visible?


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5. Is any odor noticeable?


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Humidity Sensor

1. What are the humidistat setpoints in percentage relative humidity (% RH)?


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2. What are the dehumidistat setpoints in percentage relative humidity (% RH)?


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3. What is the actual relative humidity in percentage (% RH)?


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Chillers

1. Are there no refrigerant leaks?


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2. Is the purge cycle normal?


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3. Are waste oil and refrigerant properly disposed of and spare refrigerant properly stored?


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4. Are there any condensation problems?


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Spray Humidifiers Or Air Washers

1. What type of humidifier is used?


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2. Are all nozzles working?


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3. Is there complete coil coverage?


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4. Are the pans clean with no overflow?


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5. Are the drains trapped?


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6. Is the biocide treatment working?


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7. Is there a spill contaminant system in place?


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Room Partitions

1. Is there a gap allowing airflow at the top?


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2. Is there a gap allowing airflow at the bottom?


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3. Are there supply and return vents in each room?


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Face And Bypass Dampers

1. Is the damper operation correct?


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2. Are the damper motors operational?


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Stairwells

1. Do doors close and latch properly?


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2. Are there no openings allowing uncontrolled airflow?


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3. Are they clean and dry?


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4. Are there no noticeable odors?


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Checklist by GoAudits.com – Please note that this checklist is intended as an example. We do not guarantee compliance with the laws applicable to your territory or industry. You should seek professional advice to determine how this checklist should be adapted to your workplace or jurisdiction.

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