Troubleshooting Guide - A.O. Smith AO-US-RO-4000 Owner's Manual

INSTALLATION GUIDE
8
STEP 6 Connect Tubing
WARNING: While completing step 6, to prevent loud noises/vibrations, ensure that none of the tubing is coming into
contact with anything under the sink.
1 Brass Tee to Manifold "INLET"
Take ¼" white tubing (P) attached to brass tee and insert into manifold port
labeled "INLET".
Manifold to Remineralizer
2
Using ⁄ " red tubing (Q), insert one end into system manifold port labeled
3
8
"FAUCET". Insert other end into Remineralizer port labeled "INLET".
Remineralizer to Faucet
3
Take ⁄ " white tubing already attached to faucet and connect opposite end to
3
8
Remineralizer port labeled "OUTLET". This tubing was previously cut to length while
attaching the faucet.
Manifold to Tank
4
Ensure that the 3/8" white tubing is attached properly to water storage tank and
connected to the system manifold port labeled "TANK" (previously completed in
Step 4).
Air Gap to RO Membrane
5
Insert flow restrictor (O1) into end of 1/4" red tubing
•
attached to faucet (see tubing labeled "5" in
illustration below).
Attach red tubing to 90° elbow (O2).
•
Attach 90° elbow to drain port on membrane
•
filter cartridge (C).
Faucet to Drain Connector
6
Take 3/8" red tubing attached to faucet and connect
opposite end to drain connector.
HOT
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1
6
5
COLD
4
2
3
3
WARNING:
Faucet will leak
1
if restrictor is
not installed.
2
TROUBLESHOOTING
TIPS
Refer to section 3 of the
troubleshooting guide when
experiencing constant noise
from your system.
TROUBLESHOOTING
TIPS
To prevent leaks, refer
to Section 2 on the

troubleshooting guide

(Pg. 11).