Indoor Control Wiring; Multi-Wire Terminal Connection; Communicating Indoor Controls - Air Handler - Johnson Controls Hx 3 S1-THXU430W Installation Manual

5407934-UIM-C-1119

Indoor Control Wiring

IMPORTANT: DO NOT place more than one wire under any single
communication terminal screw (there are four communication terminal
screws). If more than one wire must be connected to a terminal screw,
attach only the terminal end of a one-wire pigtail no longer than 6 in.,
and use a wire connector to connect the other end of the pigtail to the
other wires. Failure to do this results in nuisance communication error
faults. See Figure 13.
FIGURE 13: Multi-Wire Terminal Connection
FIGURE 14: Communicating Indoor Controls - Air Handler
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COMMUNICATING TERMINALS
Johnson Controls Ducted Systems
A0615-002