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6. Will the digital valves work with existing
showerheads, hand showers and body sprays?
Yes, the ioDIGITAL system works with all Moen
fixtures.
7. Will the valve fit within a regular 2" x 4"
framed wall?
Yes.
8. Does the valve need to have ventilation?
No. The valve should be mounted in an interior
wall to eliminate extreme temperature conditions.
It should not be installed in locations that exceed
the range of 40°F –104°F.
9. Do I have to plug the valve in, and is an
electrician required for the installation?
Yes, the valve needs to be plugged into a 110v AC
supply on a GFCI circuit. A certified electrician
should install the initial GFCI outlet.
10. Is the valve compatible with PEX, copper and
CPVC?
The push-fit connectors supplied with ioDIGITAL
valves work well with each of these pipes —
seals on the outside diameter.
11. Do you need an access panel for the valve?
•Yes. A minimum of 14-1/2" x 30" access
panel is required.
• Thevalvemustbeinstalledwiththefrontfacing
the access panel.
12. Can the controller be installed outside the shower?
Yes. A 30-foot data cable connects the valve
and controller, which gives you the ability to
mount the controller at a convenient location
within the home.
13. How does the controller mount to the wall?
The controller mounts simply with two screws
in a standard 2" x 4" wall. Refer to instruction
sheets INS1663 and INS1666.
14. What are the inlet sizes?
3/4".
15. What are the outlet sizes?
1/2".
16. Are water hammer arresters required?
Water hammer arresters are highly
recommended, similar to other high-
water-flowing home appliances.
17. Are stops required?
Yes, stops upstream of the water hammer
arresters to allow for servicing.
All manuals and user guides at all-guides.com
Note: Outlets A and B constitute
one valve body. Outlets C and D
constitute another valve body.
High-flow devices (e.g., tub spouts,
multiple body sprays) should be split
up between the A/B and C/D outlet
pairs. For example, if a tub spout is
connected to outlet B, 3 body sprays
should connect to C or D, not A.
ExactTemp
3/4"
®
Thermostatic Control
Moentrol
with Built-In
®
3-Function Transfer Valve
The ExactTemp Thermostatic Control uses a
mechanical system within the valve body to
a utomaticallyadjusthotandcoldwaterdelivery
and maintain consistent water temperature. The
Moentrol valve lets users turn their spa on and off
without changing the temperature position, so they
can easily return to their last temperature setting.
Q: If the hot and cold inlets are mistakenly
reversed, is the ExactTemp 3/4" cartridge
reversible?
A: NO. Hot and cold inlets will have to be
corrected for proper installation.
Q: Does the ExactTemp 3/4" cartridge need to be
removed when soldering the valve?
A: NO. Neither the temperature nor flow cartridge
needs to be removed. The cartridges will not
overheat as a result of normal soldering process.
Q: Can components (body sprays, hand showers,
etc.) be installed on a different wall than the
transfer valve?
A: YES, but it is important to follow two basic
principles to maximize performance: 1) minimize
the distance between components and the
transfer valve; 2) minimize the number of turns
in the plumbing lines from the transfer valve to
the component.
Q: Do I need to use 3/4" tubing between
components?
A: It is recommended that you install 3/4" tubing
between thermostatic and flow valves, and
1/2" pipe everywhere else. If 3/4" inlets are
available, that is preferred. However, 1/2" will
not diminish performance.
A
B
C
D
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