Underhill Novo User manual

© 2013 Underhill International Corporation
UNDERHILL INTERNATIONAL
20505 Crescent Bay Drive
Lake Forest, CA 92630 USA
tel: [phone] •fax: [phone]
1-866-863-3744 •www.underhill.us
An industry leader in innovative watering
products all over the world, Underhill brings
33 years of know-how in developing our
inventory of “Products that work...smart.™
Form No. UNM-B13
Novo™
63-Station 2Wire Converter
Products that work...smart.™
OPERATION MANUAL
www.underhill.us • 1-866-863-3744

TABLE OF CONTENTS
Introduction 1
Product Benefits 1
System Overview 2
How does it Work? 2
Mounting and Installation 4
Installing the Novo 4
Wiring the Novo 4
Programming a Decoder 8
Wiring a Decoder to a Valve Solenoid 9
Programming an External Sender 9
Connecting Senders to a Host Controller 10
Key Functions 11
Dial Positions 12
Example Screens & Their Keys 13
View Sender Commands 15
View Decoder Setup 16
2Wire Communication Path & Maximum Wire Distances 18
Electrical Specifications 21
FCC Notice 22
Warranty 23
Index 25

1
INTRODUCTION
Congratulations on the purchase of Underhill International’s Novo™product
offering ease of installation and operation for large estate and light to medium
commercial irrigation applications.
Product Benets
The Novo™ is easy to install and operate offering a number of customer benefits
that also reduces field troubleshooting when needed.
Simple – Compact design for faster and easier mounting to an interior wall or
within a wall mount or pedestal-type enclosure for outdoor applications.
Flexible and Easy to Expand – The Novo is intended to operate up to 32
stations on a 2Wire system using any host conventional multi-wire irrigation
controller. See “System Overview” on next page.
An additional 31 stations in 8-station increments for a total of 63 stations
can also be managed by installing Underhill’s Universal Senders. See Product
Overview on the page 3.
Proven – Install with a high level of trust knowing that Underhill has more than
200,000 station decoders installed worldwide.
Will operate with poorly insulated wire when retrofitting a multi-wire system.
Uses pure AC power to the decoders so no electrolytic destruction of field
wiring occurs.
No additional grounding is required along the 2Wire path, except at the Novo.
No special shielded communication wire is needed for the 2-Wire path which
can simply be 12, 14, or 18 AWG irrigation wire commonly found at most
irrigation suppliers that can save costs compared to other 2Wire systems.
Reliable – Superior resiliency to lightning protection.
Integrated Solution – All of the components necessary to provide up to 32
stations in one package.

2
SYSTEM OVERVIEW
How does it Work?
The following two diagrams represent typical installations of the Novo™
depending on how many stations need to be managed. The Novo allows any
conventional, multi-wire, irrigation controller to manage a 2Wire system with
Underhill decoders. This is accomplished by mounting the Novo to a vertical
surface and connecting the included color-coded wire to a host controller’s station
outputs. The Novo in turn converts signals to the 2Wire communication path to
individual station valves with decoders.
The Novo is powered from an external AC adapter connected to a 120-volt or
220-volt power source. This is the same requirement whether the Novo is wall-
mounted indoors or outdoors in a weather-resistant pedestal-style enclosure.
Note: Underhill external transformers p/n’s TW-35VA-115V
or TW-35VA-220v are compatible with this product only.
Figure 2-1 depicts the Novo with a host controller managing up to 32-stations.
Assumes host controller can manage up to 32 stations.
MANAGING UP TO 32 STATIONS
Figure 2-1