Wiring (Heat Pump System) - Honeywell RTH9590 User Manual

Installing your thermostat

Wiring (Heat Pump System)

6B Wire Wi-Fi thermostat to your heat pump.
a Starting with the C Wire, match the
sticky tag on the wire to the terminal
labels.
You must have a C wire. See page 11.
b Slide wire gently into terminal hole
until it snaps into place. (If you need
to remove a wire, use a pen tip to
press the terminal release and then
pull the wire out.)
Note:
Refer to the wiring picture you took
in Step 2.
Tip:
To make it easier to slide the wire
into place, use a pen tip to hold down the
terminal release.
69-2790ES—05
Note: The wiring for your
application might be different than
the wiring shown below.
Terminal release
Remove jumper loop ONLY if
you have both R and Rc wires.
Labels don't match?
See alternate wiring keys
on pages 18-19.
14
EXAMPLE WIRING
Yours may look different
MCR34566