ESBD_534095_1783001616448_0007993 Attachment E - Carbon Box and Washable Filter Instructions.pdf

Solicitation No. 0007993 RFP for Air Filter Changing Services

ATTACHMENT E

WASHABLE CARBON BOX AND WASHABLE FILTER INSTRUCTIONS

SECTION 1: CARBON FILTER REMOVAL, DISPOSAL & REPLACEMENT

A. Safety & Preparation HVAC system shut down and isolated LOTO applied (if required) PPE in place:

☐ Safety glasses ☐ Gloves ☐ N95 / respirator

Area ventilated and safe to open housing

B. Carbon Removal ☐ Open carbon filter housing ☐ Remove spent carbon using:

☐ HEPA vacuum ☐ Manual removal (scoop)

☐ Minimize dust generation during removal ☐ Inspect housing for residual carbon and debris

C. Packaging & Disposal ☐ Place spent carbon into approved containers:

☐ Sealed bags ☐ Approved drums

☐ Ensure containers are:

☐ Properly sealed ☐ Free of leaks

☐ Transport to designated waste area ☐ Do NOT dispose in any State facility dumpster

D. Housing Cleaning (Pre-Reload) ☐ Vacuum and clean interior housing ☐ Remove all remaining dust and debris ☐ Inspect and clean:

☐ Screens / grates ☐ Seals and gaskets

☐ Verify housing is clean, dry, and free of contaminants

E. New Carbon Installation ☐ Verify correct carbon type and quantity ☐ Load new carbon evenly into housing ☐ Ensure:

☐ Uniform bed depth ☐ No voids or channeling ☐ No overfilling

☐ Level carbon surface as required

F. Reassembly & Startup ☐ Reinstall screens / retainers ☐ Close and seal housing ☐ Restore system to service ☐ Verify:

☐ Proper airflow ☐ No leaks or bypass ☐ Acceptable pressure drop

SECTION 2: CLEANING WASHABLE HVAC FILTERS

A. Safety & Preparation ☐ Shut down HVAC unit at thermostat or disconnect ☐ Apply LOTO (if required) ☐ PPE in place:

☐ Safety glasses ☐ Gloves ☐ Dust mask (if heavy loading)

☐ Confirm system is OFF before removal

B. Removal & Inspection ☐ Remove filter carefully (do not bend frame) ☐ Inspect for:

☐ Tears, holes, or loose mesh ☐ Bent frames ☐ Heavy grease buildup

☐ If damaged → Replace (do not clean)

C. Pre-Cleaning (Dry) ☐ Remove loose debris using:

☐ Vacuum with soft brush attachment ☐ Light tapping (if needed)

D. Cleaning Location

☐ Clean filters at:

☐ Mop sink / wash area (preferred) ☐ Outdoor area (if needed)

☐ Do NOT wash filters in mechanical room

E. Washing Process

1. Rinse ☐ Rinse with warm (not hot) water ☐ Flush from clean side toward dirty side ☐ Rinse both sides thoroughly

2. Cleaning ☐ Apply mild detergent or approved cleaner ☐ Allow brief soak

3. Scrubbing ☐ Use soft-bristle brush only ☐ Clean:

☐ Mesh openings ☐ Frame and edges

F. Final Rinse & Drying ☐ Rinse thoroughly until water runs clear ☐ Ensure no soap residue remains ☐ Shake off excess water ☐ Air dry completely:

☐ Upright or angled position ☐ Shaded / ventilated area

☐ Do NOT reinstall while wet ☐ Do NOT use heat or direct sunlight

G. Reinstallation & Startup ☐ Verify filter is completely dry ☐ Reinstall with correct airflow direction ☐ Ensure:

☐ Proper seating ☐ No gaps or bypass

☐ Restart system ☐ Verify:

☐ Airflow restored ☐ No vibration or rattling

H. Restrictions & Best Practices ☐ Only clean filters labeled washable/reusable ☐ Do NOT wash:

☐ Fiberglass filters ☐ Pleated disposable filters

☐ Never:

• ☐ Use high-pressure water

• ☐ Use harsh chemicals

• ☐ Reinstall damp filters

☐ If airflow does not improve after cleaning → Replace filter

Notes for Technicians

• Pre-filters should be maintained regularly to protect downstream components

• Carbon filters are not reusable media—replacement is required when saturated

• Maintain housekeeping in all work areas to avoid IAQ issues