Hepa Filter And Pre-Filter Removal And Replacement - Nailor MAC-700 Installation Operation & Maintenance

HEPA FILTER AND PRE-FILTER REMOVAL AND REPLACEMENT

The MAC-700 contains a MERV 10 pre-filter and a 6" HEPA filter. Both filters can be replaced without any special tools. It is
recommended to change the pre-filter every 3 months and HEPA filter every 12 months. However, filter life is variable based on
air quality and the speed of blower. Follow steps below to replace the filters.
Notice: Safety precautions must be taken when changing filters. Always wear personal protective equipment including
face mask, gloves, and shoe cover. Once the filter is removed, immediately place the old filter into a plastic bag, twist
or tie the bag and dispose the bag in an outdoor trash can.
Step 1:
Open the unit door using square head door key shipped with unit. (Two keys shipped with unit).
Step 2:
To remove the HEPA filter, rotate all three plastic knobs counterclockwise all the way up and loose the filter clips. Lift the HEPA
filter out of the unit.
Step 3:
Unpack the new filter and inspect shipping damage. If damage is found, do not install in unit; call the manufacturer for
replacement arrangements.
Step 4:
Place the new HEPA filter on the deck, inspect all gaskets and seals for integrity.
Step 5:
Rotate all clips so they are supporting the frame and are at 90° to the frame. Evenly tighten the plastic knobs. Do not over tighten.
Figure 4. HEPA Filter Clips
Figure 5. Pre-filter Replacement
Step 6:
To replace pre-filter, rotate the pre-filter clips and lift the prefilter and pull it out.
Step 7:
Unpack the new pre-filter and put on the pre-filter deck. Inspect all gaskets for integrity.
Step 8:
Rotate all pre-filter clips so they are supporting the frame and are at 90° to the frame.
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