Honeywell RTH9580 Wi-Fi - Installation and Setup; Setting Up Your Thermostat

8
Labels don’t match or have
heat pump system?
SeeUser Guide.
 1.6c Intheimageontheright,check
the box next to each connection.
You will use this checklist in
  Step1.9.
 1.6d Verifywireisfirmlysecuredby
gently pulling on wire.
 1.6e Repeatstepsa–d for all other
wires.
 1.6f Pushany excess wire back into
the wall opening after all wires
are installed.
Note: The L terminal on the lower
right is used only for Heat Pump
systems.
Note: IftheoldthermostatforHeat
PumpSystemhasseparatewires
on Aux and E, use a wire nut to
attach both wires to a separate
wire.Slidethisthirdwireintothe
W2-Aux/E terminal.
Important!
Check the box for each wire
you connect. You will need
thisinformationinStep1.9.
C
K
Rc
R
W-O/B
Y
G
W2-
Aux/E
Y2
L