Programming instructions

Designer’s Guide 55
Calsense
Requirements
To connect two or more Calsense hardwire controllers together, the following is required:
• Paige P7171D communication cable installed in conduit. For runs of less than 100 feet, 18-gauge
multi-conductor irrigation wire in conduit may be substituted.
• A maximum length of 5,000 feet for all Paige P7171D communication cable for one
communication chain. If more than 5,000 feet is necessary, multiple 5,000 feet cable runs can be
combined using a controller with two -M options (model -M-M) as an amplifier.
• Communication cable direct pulled installed in conduit
• Expansion loops in accordance with appropriate NEC codes for pulls of more than 100 feet
(Figure 30
). Splices are not recommended.
Figure 30 - Pull Box Detail
• If wire splices are unavoidable, splices must be completely insulated from soil and moisture using
3M™ Scotchcast™ 3570G Connector Sealing Packs (formerly 3M Scotchlok™ 3570 Connector
Sealing Packs) or Spears® DS-100 Dri-Splice Connectors with DS-300 Dri-Splice Sealant (Figure
31).
Figure 31 - Splice Detail
• A maximum of 32 controllers linked together in a single communication chain
Conduit For
Paige Cable
Finish Grade
Pea Gravel
Valve Box (size and
spacing per NEC code)
Paige P7171D
communication cable
3' to 4' loop of cable
with no splices
Conduit For
Paige Cable
Finish Grade
Pea Gravel
Valve Box (size and
spacing per NEC code)
Paige P7171D
communication cable
3' to 4' loop of cable
with no splices
Conduit For
Paige Cable
Finish Grade
Pea Gravel
3M Scotchcast 3570G
Connector Sealing Packs
Valve Box (size and
spacing per NEC code)
Paige P7171D
communication cable