Airmax ProAir 4 User manual

airmaxeco.com | 866-424-7629 | P.O.Box 38 | Romeo, MI 48065
ProAir™ 4 Diuser
For All PondSeries™ and LakeSeries™
Aeration Systems
Item # 510166
INSTALLATION INSTRUCTIONS
Product Contents .........................2
Installation ..............................3
Maintenance .............................4
Troubleshooting ..........................4
Replacement Parts........................4
Warranty ................................4
Table of Contents:

airmaxeco.com | 866-424-7629
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The ProAir™ 4 is the most advanced diuser on the market today and is specically
designed to maximize circulation and oxygen transfer in ponds and lakes. The
ProAir™ 4’s weighted sled design keeps the diuser submerged and prevents it
from sinking into the muck. The exclusive PTFE non-stick membrane sticks provide
the synergy of air stones while being virtually maintenance-free. Each diuser also
includes a check valve to prevent back pressure to the compressor.
PRODUCT CONTENTS
C
E F
A
B
D
A2 – Deep Water Diuser Sleds
B4 – PTFE 6” Membrane Sticks
C1 – Diuser Manifold w/Check Valve
D1 – ⁄” to ¾”, Barb x MPT
Insert Reducer Adapter
E1 – ⁄” to ¾”, Barb x MPT
Insert Reducer Adapter
F1 – 1” Stainless Hose Clamp
What’s Included:

P.O.Box 38 | Romeo, MI 48065 3
INSTALLATION INSTRUCTIONS
Step 2
Hand tighten Membrane Sticks to the
Diuser Manifold ensuring Diuser Sleds
and rubber o-ring are in place.
NOTE: DO NOT over tighten Membrane
Sticks. Once snug, continue 1/4 turn. Over
tightening may cause DAMAGE to the
Diuser Manifold and/or Membrane Sticks.
Do not remove black rubber o-rings from
membrane sticks.
Step 3
Align second Diuser Sled with
Diuser Manifold.
Step 4
Repeat Step 2.
Step 5
Depending on the size of airline, screw
corresponding reducer adaptor into the
check valve. Slide hose clamp onto the airline
and connect airline to the reducer adaptor.
Firmly tighten stainless hose clamp onto
airline to secure into place.
Step 1
Align Diuser Manifold with Diuser Sled as
shown in picture. Ensure the Airmax® logo
on the Diuser Manifold is facing up.
NOTE: DO NOT tighten Membrane Stick to
Diuser Manifold without the Diuser Sled
and rubber o-ring in place.

airmaxeco.com | 866-424-7629 | P.O.Box 38 | Romeo, MI 48065
4
MAINTENANCE
We recommend inspecting and/or cleaning the membrane diuser sticks every
24-36 months, or anytime the pressure gauge reading is signicantly higher than
normal or there is a reduction in bubbles from the diuser. To clean, use Airmax®
D-Scale Cleaner (#530298) and a soft cloth.
TROUBLESHOOTING
If you have loss of airow to one or more diusers:
• Check to ensure airow valves on compressor manifolds
are adjusted correctly.
If large boiling bubbles are present on the water’s surface:
• Check membrane sticks for tears.
• Check for loose connections on diuser manifold.
REPLACEMENT PARTS
REPLACEMENT PARTS ITEM #
Airmax® Diuser Manifold w/Check Valve #490374
Airmax® Deep Water Diuser Sled #490337
Airmax® ProAir™ Diuser Membrane Stick #510168
1”Stainless Hose Clamp #490229
Airmax® ⁄”to ¾”, Barb x MPT #490227
Airmax® 3⁄8”to ¾”, Barb x MPT #490225
Airmax® Check Valve, ¾”FPT #490340
WARRANTY
All ProAir™ 4 diusers carry a 5-year warranty extended exclusively to the original
purchaser. This warranty begins from the date of original purchase receipt.
Any component which proves to be defective in material or workmanship as
determine by Airmax®, Inc. will be repaired or replaced at no charge. The end
user shall assume all responsibility and expense for removal, packaging and
freight to ship to Airmax®, Inc. to determine the warranty claim and for all
reinstallation expenses.
Improper installation, careless handling, misuse, abuse or failure to follow
maintenance or operating instructions as well as any modication or repair by
an unauthorized repair facility will void all warranty. Diuser membranes are
considered wear parts and are not covered under warranty.
#510476 V1.1