Instructions / Assembly

3
Connect the New Wall Plate
Insert all wires vertically from the open socket into the
proper terminal. Ensure that each wire is inserted into the
matching terminal. Use the supplied flathead screwdriver
to fasten each wire. Pull wires gently to ensure wires are
securely fastened.
3
WARNING: Use caution when securing and routing
wires to prevent possible shortage to adjacent terminals.
KEY
Rc Power Cooling W/E
1st Stage Heating
Emergency heat activated at W1
Rh Power Heating W2
2nd Stage Heating
Auxiliary heat activated at W2
C Common O/B Reversing Valve
G Fan H/Dh (De) Humidifier
Y
1st Stage
Compressor
Data
Alarm Input
(Only to be used with Bosch WSHP)
Y2
2nd Stage
Compressor
Jumper
Mount the New Wall Plate
Use the enclosed screws and anchors to
mount the new wall plate. In most cases,
you can utilize the same mounting position of your old
thermostat. Be sure to check the alignment of your wall
plate before installation.
2
Note: the color of your wires may not be the same as what’s shown in this User Guide