Pure n Natural Systems MARK 20 User manual

MARK 20 AIR CLEANER USERS MANUAL
READ AND SAVE THESE INSTRUCTIONS
Pure n Natural Systems, Inc. recommends that a licensed electrician or licensed
contractor install units.
WARNINGS:
1. Always unplug or disconnect the air cleaner from power supply before servicing.
2. To reduce the risk of electric shock or injury to persons, do not expose to water or
rain, do not use in a window.
3. Do not use this fan with any solid state speed control device.
FILTER CHANGING:
1. Pre Filter - Replace every 3 to 4 weeks.
2. Carbon Panel Filter - Replace at least every 2 months.
3. H.E.P.A. Filter - Replace at least every 12 months.
Step 1. The Pre Filter is located behind the intake door (service door). The Pre Filter is a
blue and white polyester, pre-tack filter. The intake door is located closest to the
HI/OFF/LO switch on the face of the system. Remove the pins and grill from the air
intake side of unit. The Pre Filter is the first filter behind the intake door. Peel away dirty
Pre Filter and discard. Install the new Pre filter with the white side out. Close door. DO
NOT WASH PRE FILTERS.
Step 2. The carbon filter is located behind the Pre Filter. Follow Pre Filter changing
instructions from Step 1. Remove Carbon Filter, discard and replace with new Carbon
Filter. DO NOT WASH CARBON FILTERS.
Step. 3. The H.E.P.A. filter is the box filter (with a pleated media surface) located
behind the pre-filter and charcoal filter. Slip the H.E.P.A. Filter out of the system,
discard and replace with new H.E.P.A. Filter. DO NOT WASH H.E.P.A. FILTER.
Filter maintenance may vary according to each situation.
For any questions, please contact our customer service department at 1-800-237-9199.

INSTALLATION OF MARK 20 AIR CLEANER
INSTALLATION FOR DROP CEILINGS:
Step 1. Remove tile from ceiling grid.
Step 2. Unit can be secured to beams, rafters or joists above the drop ceiling. Thread the
industrial hanging wire provided through one eye bold and twist wire together. Make sure
the wire is tight. Eye bolts on the systems are sixteen inches square. Next, take the wire
and go up and over a beam, rafter or joist letting the wire hang so it can be twisted to the
opposite eye bolt. Repeat procedure with remaining two eye bolts.
Step 3. In a case where there are no beams, rafters or joists, the unit needs to be secured
to the main structure above the drop ceiling. There are four eye lags provided to screw
into the main structure. Eye bolts on the systems are sixteen inches square. Thread
hanging wire provided through one eye bolt and twist wire together. Make sure wire is
tight. Thread loose end of wire through two parallel eye lags in the main structure. Twist
the loose end of wire to opposite eye bolt. Repeat procedure with remaining eye bolts and
eye lags.
Step 4. Hang so that the top of the system will be flush with the drop ceiling. Therefore,
you will not see any of the hanging apparatus. Fill any gap in the drop ceiling by cutting
down the ceiling tile, removed at the beginning of the installation, to the correct
measurement and inserting back into the grid.
INSTALLATION FOR SOLID CEILINGS:
Step 1. Locate studs in the ceiling. Eye bolts on systems are sixteen inches square.
Screw in the four eye lags provided into the studs. Attach the four S hooks to the eye lags
and close the S hooks around the eye lags to secure. Raise system and attach the four eye
bolts to the open end of the S hooks. Close the S hooks around the eye bolts.
For any questions, please contact our customer service department at 1-800-237-9199.

MARK 20 AIR CLEANER APPLICATION
It is recommended that the Mark 20 Air Cleaner be
installed in areas that have 12 foot ceiling heights or
more. The Mark 20 Air Cleaner is equipped with 4
eye bolts installed 16" on center on top of each
system for easy installation. The installation
hardware also includes: 4 "S" hooks, 4 eye lags and
industrial hanging wire. 1 unit recommended for
every 2000 sq. ft.
• 2000 C.F.M.
• Ceiling or Wall Mount
• 36" L x 25" W x 25" H
• Woodgrain or White Finish
• Shipping Weight - 167 lbs.
• 9.0 amps, 120V, Two speed
• 10 ft. power cord, 3 prong grounded plug
• Three Filter System: HEPA, Charcoal, Pre-Filter
• All systems carry a lifetime motor/blower warranty
• All electrical components and fan motor are UL Listed and CSA Certified.
For any questions, please contact our customer service department at 1-800-237-9199.
Pure n Natural Systems, Inc.
P.O. Box 1137 ●Streamwood, IL 60107
Toll-Free – 1-800-237-9199 ●Fax – 847-470-1686
www.purennatural.com