Notice:
Replace filters at least every 6 months, as most gas-phase filter media achieve saturation by
adsorbing moisture from ambient air.
Use only original
replacement filters.
5.3.
Safety Interlock
The safety switch is an interlock which turns off the fan when the main
filter is removed and when the fan inlet opening is exposed. The safety
switch also prevents the system from operating without filters in which
case the impurities would contaminate the internal unit.
WARNING!
Do not bypass safety interlock. Bypassing safety interlock could result in
injury to persons.
5.4.
Filter Replacement Procedure:
1. Turn unit off.
2. Disconnect the power cord.
3. Unlatch the filter cover (see illustration on right).
4. Remove filter cover.
5. Replace the filters. (Pre-filter/main filter). Ensure to place main filter inside the alignment pins
so that interlock switch is depressed.
6. Replace filter cover and ensure proper fit on bottom housing. Hook both latches into filter
cover and press down carefully.
Caution!
Do not use force. If latches do not close, check proper seating of filter cover on bottom
housing.
7. Reconnect power cord and turn system on.
8. If unit does not operate, refer to troubleshooting section.
Notice:
Always use new replacement filters!
