Instruction manual

1. Locate the length of 3/8” (0.95 cm) O.D. tubing provided with a
quick disconnect insert on one end and a 3/8” O.D. X 1/4” NPT
tubing adapter on the other.
2. Install the tubing adapter onto your incoming water line (Figure 3-16).
We recommend a customer supplied shut off valve be installed in your
feed water line.
3. The quick disconnect end of the tubing will be inserted into the feed
water inlet on the lower left corner in the rear of the Barnstead TII
(Figure 3-13).
The RO reject and flush water is sent to
drain through this connection.
1. Locate the drain water tubing. This is the
1/4” (0.64 cm) O.D. tubing that is
approximately 6 ft. (1.83 m) long with a
1/4” O.D. x 1/4” N.P.T. tubing adapter
on one end. The atmospheric drain
fitting is located on the lower left corner
in the rear of the Barnstead TII.
2. Install the tubing adapter into an
atmospherically vented drain and route
the tubing to the Barnstead TII drain
connector, ensuring that there are no
kinks.
3. Take the tubing end that has no fitting,
wet the tube end with water and insert
the tube straight into the unit drain
connector until it bottoms out. Refer to
the Push-to-Connect Fitting Tubing
Install section for more explicit details.
3-12 Type II Water System Thermo Scientific
Section 3
Installation
Feed Water
Connections
Atmospheric Drain
Figure 3-13. Feed Water
Inlet and Atmospheric Drain
Feed Water
Inlet
Atmospheric
Drain