Pure Air 600HS, 1200HS, 2000HS PLUS Installation Instructions Manual

INSTALLATION INSTRUCTIONS

MODEL 600HS

L – Housing

S – Housing

ASSEMBLY INSTRUCTIONS

1. Unpack your unit and remove all packing from the blower and motor assembly.

2. Remove both housing access doors.

3. VERY IMPORTANT NOTE! MAKE SURE THE BLOWER WHEEL SPINS FREELY.

4. From the filter section, remove the wire framed pre-filter.

5. Locate the two HEPA filter holding strips that also act as a tray for the carbon filter and pre­filter. Remove the two hex nuts and associated screws on both holding trays and remove
the trays from the housing.

6. Remove the hex head screws that are in the gasket material on the BOTTOM (motor) section
of your unit. The BOTTOM & TOP (filter) sections are symmetrical, so they can be rotated
360 degrees so the discharge can be pointed in four different directions to accommodate
any installation configuration. This allows for best directional location for the TOP section
filter access door. MAKE SURE THE DISCHARGE DIRECTION IS CORRECT FOR YOUR
APPLICATION BEFORE ASSEMBLING. Align the sections as desired. Place the TOP section
on the BOTTOM section, align the holes and tighten the hex head screws.

7. Insert HEPA filter. BE CAREFUL TO NOT PUNCTURE THE HEPA MEDIA. The gasket should
be toward the motor unit. Center the gasket over the knife-edges so that it is even on all
four sides. Replace the two HEPA holding trays.

8. Remove the wrapping from the carbon filter and slide the carbon filter and pre-filter back
into the trays and replace the access door.

Please look at the attached "typical installation" drawings. The inlet duct should be connected to
the main return air duct leading to the heating/cooling system, and the discharge duct should be
connected to the point where the return air duct enters the heating/cooling fan area.

ALWAYS INSTALL THIS SYSTEM IN A BY-PASS CONFIGURATION.

MATERIALS NEEDED FOR COMMON HVAC INSTALLATIONS

1. Section of 12" (14" for 1200/2000 units) diameter sheet metal (recommended) or flex duct. You

will need 3' to 6' for most installations.

2. Section of 10" (14" for 1200/2000 units) diameter sheet metal (recommended) or flex duct. You

will need 6" to 24" for most installations.

3. 12" collar (14" for 1200/2000 units) for connection to return air duct.

4. 10" collar (14" for 1200/2000 units) for connection to fan return side of HVAC unit.

5. 4" by 18" (4" by 24" for 1200/2000 units) piece of sheet metal for Air Scoop. Or a prefabricated

damper. This is recommended to be installed with every unit.

6. Sheet metal screws, duct tape or metal tape. 12 gauge electrical wire for power to unit.

7. Thermostat wire.

INSTALLATION OF THE DUCTING

Select the proper location for the attachment of the inlet and discharge ducts. Try to keep a
minimum of 6 feet between the inlet and discharge openings. This will prevent the Pure Air
Systems’ filtration unit from recycling the same air. Cut the openings in the existing return air
duct. We recommend an air scoop be placed inside of the return air duct so that it directs air into
the inlet duct of your filtration system. You can use a damper as an air scoop. Make sure the
damper is angled to direct the air from the return air duct into the inlet duct of your filtration
system.

Use sheet metal screws, duct tape or aluminum tape to attach the duct sections to the collars on
the inlet of the unit and the air return. Make sure there are no air leaks. Repeat this same
procedure for the discharge duct. Make sure all connections are tight and taped.

ELECTRICAL WIRING

NOTE: ALWAYS FOLLOW ELECTRICAL CODES FOR YOUR AREA. We recommend a dedicated 15
amp service for all of our air filtration systems. The conduit connector is designed for EMT conduit
or Romex cable. Wire the black, white and green (ground) wires through the conduit connector to
the black, white and green wires inside the unit.

The 600HS unit requires 120 volt, single phase service. It uses a 1/3 HP 5 amp, capacitor start,
single speed motor. The system is designed to run 24 hours a day. You can control the 600HS
unit in two ways:

1.) Use a pressure switch or sail switch located in the main return air duct. In this way,
anytime the HVAC fan is running the 600HS unit will run.

2.) Use the lighted on/off switch to control unit. You can run the unit anytime or all the time
using this approach. The 600HS units are designed to run 24/7.

We recommend you run your HVAC fan all of the time. This will enable you to circulate the
air constantly through the house and air filtration system. This will also help maintain a more
constant temperature throughout the living space.

General Commercial

Guidelines for Replacing

Filters

• Prefilter once a month

• Carbon filter every 6

months

• HEPA filter once a year

6115 Guion Rd.

Indianapolis, IN 46254

800.869.8025 or 317.291.4341
Fax [phone]

[e-mail]

General Residential Guidelines

for Replacing Filters

• Prefilter 3 months

• Carbon filter every year

• HEPA filter 2.5 to 3 years

6115 Guion Rd.

Indianapolis, IN 46254

800.869.8025 or 317.291.4341
Fax [phone]

[e-mail]

6115 Guion Rd.

Indianapolis, IN 46254

800.869.8025

317.291.4341

e-mail: [e-mail]

www.pureairsystems.com

FILTER MAINTENANCE

WARNING

(Before changing any filters always turn power off to unit by switching the lighted rocker

switch located on the discharge or motor section of the unit to the off or down position.)

PREFILTER: (change every 3 to 4 months unless used in commercial applications.)

1.) Ring panel prefilter is located on top or next to the carbon filter. Simply slide the prefilter out and replace with new prefilter. Make sure white side is
facing up or toward the airflow. Replace filter door and turn lighted rocker switch back to the on or up position.

CARBON FILTER: (change every 9 to 12 months unless used in commercial applications.)

1.) Carbon filter is located just under the prefilter or between prefilter and HEPA filter. Some housings you’ll have to remove prefilter before you can
remove and replace carbon filter. Replace prefilter on top of carbon filter. Replace filter door and turn lighted rocker switch back to the on or up position.

HEPA FILTER: (change every 2.5 to 3 years unless used in commercial applications.)

1.) Remove prefilter and carbon filter.

2.) Remove nuts and bolts (two on each side) that attach hold down channels. On some housings you’ll need to loosen the set screws (top and bottom)
and remove the bolts to the compression brackets. Remove both channels and or brackets. Lift HEPA filter out of housing.

3.) Carefully place new HEPA filter back in housing. Lift and position HEPA filter with gasket side facing down sitting evenly on metal knife edge on all four
sides.

4.) Replace channels and or brackets with bolts, nuts or set screws to their original locations and tighten them. Replace carbon and prefilter.

5.) Replace filter door and turn lighted rocker switch back to the on or up position.