4
Installation Steps
Step 1 - Cold Water Supply Fitting
Fig. 2
A.
Water supply connection
(using included water supply fitting)
B.
Water supply typical connection
(using compression fitting)
- parts not provided -
cold water shutoff
3/8" compression fitting
insert
ferrule
cold water
pipe
3/8" tubing to
water filter inlet
cold water shutoff
cold water
shutoff
3/8" tubing to
water filter inlet
cold water
line
water supply
fitting
Check and comply with local plumbing codes as you plan, then install a cold water supply fitting. The fit-
ting must provide a leak-tight connection to the water filter 3/8" tubing. A typical connection using the
included water supply fitting is shown in Figure 2A. An optional connection using standard plumbing fit-
tings (not included) is shown in Figure 2B.
Included Water Supply Fitting
1
. Close the cold water shutoff valve (angle stop valve) that the water supply fitting will be installed on,
and open faucet(s) to relieve pressure.
2
. Disconnect the existing cold water line from the water shutoff valve.
3
. Make sure that the water supply fitting’s gasket is inside the female threaded portion of the fitting.
4
. Install the water supply fitting onto the cold water shutoff valve, where the existing cold water line was
removed, and hand tighten. Be careful not to cross thread or overtighten.
5
. Connect the existing cold water line to the male threaded portion of the water supply fitting and hand
tighten. Be careful not to cross thread or overtighten.
Optional Pipe Fittings
(compression type shown)
NOTE:
Be sure to turn off the water supply and open a faucet to drain the pipe.
Complying with plumbing codes, install a fitting on the cold water pipe to adapt 3/8" OD tubing. A typical
connection is shown in Figure 2B. If threaded fittings are used, be sure to use pipe joint compound or
thread sealing tape on outside threads.
gasket
Questions? Call Toll Free 1-866-972-0135
or visit
www.northstarwater.com
When you call, please be prepared to provide the model, date code and serial number,
found on the rating decal, located inside the cover.
