Plumbing The System; Plumbing The Manifold Assembly - Autopilot Pool Pilot Digital Nano+ Owner's Manual

8.7 PLUMBING THE SYSTEM

The Manifold Assembly has 2" PVC Slip Socket connections. Metric PVC adapters, 2" spigot x 63 mm
socket, are provided with metric manifold models that have an "M" suffix, such as PPMxM. The
manifold is plumbed into the pool return line after the heater and spa diverter valve, if applicable.
See Figure 10 and Figure 11 on page 27 for typical installations.

8.7.1 Plumbing the Manifold Assembly

Select the location for installing the manifold:

It is recommended the manifold be planned prior to installation of the Digital
Nano/Nano+. The Digital Nano/Nano+ must be installed close enough to the Manifold
Assembly to allow the Tri-sensor and cell cables sufficient slack to enable component
service and maintenance. The cables are 12' (3.6 m) long.

The Bypass Manifold/Cell (model PPMxx) assembly must be installed in a vertical
orientation as illustrated in the diagram on page 27. This orientation prevents hazardous
gas buildup in the system, should the flow switch fail to detect insufficient flow.

The direction of the water flow through the manifold must be as indicated for the system
to operate properly.

For a Pool/Spa combination, the manifold must be located as the last component in the
pool return line to avoid over-sanitization of the spa.
Flow Rates 15 – 70 GPM (57 – 265 L/min)

The manifold can be directly plumbed into the system (as shown in the diagrams on
page 27).

If the flow rate for the system is less than 15 gpm (57 L/min), a larger pump must be
installed (or steps taken to improve flow rate).

For a two-speed or a variable speed pump, ensure the pump can provide sufficient flow
at the low speed.
Flow Rates Exceeding 70 gpm (265 L/min)

A 5 lb. (35 kPa) bypass check valve must be plumbed in parallel with the manifold.

Manifolds are to be installed in a vertical (upright) position ONLY.
Model PPMxx
From
Pump &
Filter
5 lb. (35 kPa) bypass valve
Figure 23
To Pool
Return
Page 35