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Zurn PEX
®
Plumbing Installation Guide
ZURN PEX, INC.
HIGHWAY 11 EAST, COMMERCE, TEXAS, U.S.A. 75428 • PHONE: 855-ONE-ZURN (855-663-9876) • FAX: 903-886-2583 • www.zurn.com
Installation with a Zurn PEX Manifold
QickPort
®
Manifolds efficiently and effectively deliver hot
water faster. The QickPort Manifold distribution system offers
a variety of benefits including:
• Controllable water distribution
• No in-line below floor fittings
• Increased water flow and pressure
• No hidden fittings behind the wall
• Available with or without full flow ball valves
The QickPort Manifold is also available with soft water ports
to maximize resource conservation in applications with water
softeners.
Sizing the QickPort Manifold System
The manifold system allows individual hot or cold lines to be
connected to each fixture inlet from the manifold. To size a
manifold, count the number of cold water locations in the house as
well as outside hose bibbs. Also, include a line for the refrigerator
ice maker, particularly if the refrigerator is not on the same wall as
the kitchen sink. Next, count the number of hot water locations in
the house. Choose your manifold according to the desired number
of hot and cold ports.
Important:
Do not attempt to supply two locations from a single
manifold outlet as it may result in unsatisfactory performance
and may violate local plumbing code. For a double vanity that
has a continuous cabinet, some local codes will allow the
second lavatory faucet to be connected to the first by using a tee
fitting under the vanity. The installer must first verify that this is
acceptable according to local code prior to sizing.
Important:
All unused ports should be capped, even if the valve
is closed.
Locating the QickPort Manifold
The manifold should be installed in an accessible area very near
the water heater, but not closer than 18" from the water heater
outlet.
Note:
In a typical installation, the QickPort should be no closer
than 18” from the water heater outlet.
If the manifold must be more than 8 feet from the water heater,
we recommend installation of a circulatory loop between the water
heater and the manifold. The water temperature in the loop must
be less than 140°F and the chlorine must be less than 2 ppm.
Important:
The QickPort must be located in an area that will not
be covered permanently with sheetrock, plywood, or paneling.
The QickPort must also be protected from freezing temperatures.
Connecting Zurn PEX to a Water Heater
Gas Water Heaters
Zurn PEX must be kept at least 6" away
from the exhaust vent of a gas-fired water heater. This is easily
accomplished by using flexible water heater connectors. When the
inlet and outlet connections are well away from the exhaust vent,
such as most heaters with side connections, Zurn PEX may be
directly connected to the water heater.
When connecting to a power vented gas water heater, Zurn PEX
tubing should be kept at least 6” away from a metal blower
housing. If the blower housing is plastic, the Zurn PEX tube may be
directly connected to the water heater.
Electric Water Heaters
Zurn PEX may be connected directly to
electric water heaters for residential plumbing applications. Zurn
PEX has brass male and female threaded adapters and swivel
adapters that can be used for this application.
Tankless Water Heaters Because of the extremely high temp-
eratures produced by tankless water heaters, most manufac turer’s
require metal piping be connected to the heater’s supply and
discharge.
When installing Zurn PEX near a gas fired tankless heater, keep
Zurn PEX tubing at least 12" away from exhaust piping, which can
reach temperatures of 460°F.
Water Heater Temperature and Pressure Relief Valves
Zurn PEX tubing may be used on the discharge side of a typical
water heater temperature-pressure relief valve.
S6713NB18GX
QCR4X
3/4
"
Zurn PEX
Water Heater
