Table Of Contents; Two-Wire Layout - Weathermatic SLFSI-T10 Design Manual

Two-Wire Layout........................................ Page 4
Wire Sizing................................................... Page 5
Type of Two-Wire....................................... Page 5
Surge Arrestor............................................. Page 5
Wire Splice................................................... Page 6
Grounding.................................................... Page 8
Grounding Grid........................................... Page 10
Weathermatic SmartWire Controllers..... Page 12
Weather Station / Rain-Freeze Sensor.... Page 12
TWO-WIRE PATH LAYOUT
Two-wire controllers typically have connections for multiple wire paths enabling the system to power
decoders running in multiple directions. The Weathermatic SmartWire™ two-wire controllers have 3
separate wire path connections. These are labeled 1, 2, & 3 for wire path #1, wire path #2 and wire path
#3 respectively.
Although wire paths can be designed to run in multiple directions, attention should be given to the
limitations on distance that each wire can be installed.
The Weathermatic SmartWire™ system allows you to have several options in cable routing to determine
the most efficient two-wire layout for your project. Maximum decoder to valve distance is 100 feet
(30.5m).
Each two-wire run can be laid out in Straight Run, Complete Loop, Star, or Combination configurations
as shown below.
Last Decoder
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SmartWire
Controller
4 | P a g e
WEATHERMATIC SMARTWIRE™ TWO-WIRE DESIGN
SmartWire
Controller
STAR
CONFIGURATION
LOOP
CONFIGURATION
Weathermatic Decoders............................ Page 13
Decoder Programming............................... Page 14
Decoder Errors............................................. Page 14
Master Valves.............................................. Page 15
Flow Sensors................................................ Page 16
Warranty....................................................... Page 17
Weathermatic Solar.................................... Page 18
Weathermatic SmartLink........................... Page 18
Specification Checklist................................ Page 20
Last Decoder
Last Decoder
Last Decoder