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INSTALLING THERMOSTAT WITH A C WIRE (CONT.)
• If you have more than one R wire (R wires include R, Rc, and Rh):
• Connect the R or Rc wire to the Rc terminal, and connect the Rh wire to the Rh terminal.
• If you only have one R wire (R wires include R, Rc, and Rh):
• Connect the R wire—R, Rc, or Rh—to the Rc terminal.
About R Wires: