Page 29
8.4 INSTALLATION STEPS
Details on each step of the installation process are presented on the following pages:
1) Mounting the Digital Nano/Nano+
2) Electrical Connections (page 30)
Electrical Connections Overview
AC Input Voltage
Low Voltage Wiring
Connecting the Cell Cable
Connecting the Tri-sensor
Connecting the Retractable Cover Switch (option available with installation of the
#863A Expansion Board)
Bonding
3) Plumbing the System (page 35)
Plumbing the Manifold Assembly
4) Preparing the Water (page 36)
5) Programming at Installation (page 38)
8.5 MOUNTING THE DIGITAL NANO/NANO+
WARNING:
Failure to heed the following may result in injury or death.
All electrical connections should be made by a licensed electrician or certified
electrical contractor.
Ensure electrical power is disconnected before wiring the unit. Follow all state / local
NEC (CEC if applicable) electrical codes. Use copper conductors, only.
The Digital Nano/Nano+ is suitable for indoor or outdoor mounting. When connected to 230 Vac, the
Digital Nano/Nano+ control unit
must be installed at least 5’ (1.5 m) horizontal distance from the pool or
spa wall. When connected to 115 Vac, the Digital Nano/Nano+ control unit
must be installed at least 10’
(3 m) horizontal distance from the pool or spa wall. Greater distances may be required by local codes.
The Digital Nano/Nano+ control unit is designed to mount vertically on a flat surface with the wiring
inputs facing downward. The enclosure is designed to allow heat to dissipate from inside the box. It is
important the top or bottom of the enclosure is not blocked.
Do NOT mount the Digital Nano/Nano+ inside a panel or a tightly enclosed area lacking proper and full
ventilation.
When selecting a location for installing the Digital Nano/Nano+ control unit, please note the Tri-sensor
and c
ell cables are 12’ (3.6 m) long.
ATTENTION: Verify the selected Digital Nano/Nano+ location is close enough to the Manifold
Assembly to allow the Tri-sensor and cell cables sufficient slack to accommodate later service and
maintenance.
To avoid damage to wiring and connectors, read the following section before proceeding:
1) Hold the Digital Nano/Nano+ chassis level in the selected mounting location. Through the
top, narrow portion of the mounting slots, mark the wall for the four (4) mounting holes.
2) Plastic anchors and screws have been provided for concrete or stucco walls; anchors are
not required when mounting to wood or composite materials. Drill and install the plastic
anchors (as applicable). Tighten the screws into the anchors, temporarily
leaving a ¼” (7.0
mm) gap between the wall and the underside of the screw heads.
3) Holding the Digital Nano/Nano+ slotted openings to the screw heads, allow the screw heads
to pass through the larger portion of the mount holes. Hang the power center on the four (4)
mounting screws. Tighten the screws using a long shaft screwdriver.
