Hayward OmniLogic Installation Manual page 26

Remote Terminal
Up to 2 wired HLWALLMOUNT touchscreen remote terminals can be wired to the OmniLogic. Use 24AWG (or better) four conductor cable (typically phone cable)
to connect the wired remote terminal to the OmniLogic's High Speed Bus as shown below. Note that the screw connections on both the OmniLogic main unit
and the wired remote terminal are numbered: Connect 1 to 1, 2 to 2, etc. as shown in the diagram below. Although the High Speed Bus has 5 screw terminals,
screw #5 is not used. Refer to the HLWALLMOUNT manual for maximum distances and complete installation instructions.
HL-CHEM ORP and pH Sensing Kit
Plug in the connector from the HL-CHEM into one of the Low Speed Bus connectors on the main PCB in the OmniLogic Control Center as shown below. Refer
to the HLCHEM manual for complete installation instructions.
Route cable
through
access hole
22
x
4 3 2 1
Route
though
knockout
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Connect screw terminals
"1" to "1", "2" to "2", etc.
OmniLogic
Main Board
Refer to HLWALLMOUNT
manual for max distance
Connect Probe Cell cable here
Remote Terminal
4 3 2 1