35
Setup Backup/
Indoor
Heat
Comp.
Stages
Backup/
Indoor
Heat
Stages
Heat
Stages
1st
Heat
Stage
2nd
Heat
Stage
3rd
Heat
Stage
4th
Heat
Stage
1st
Em
Heat
Stage
2nd
Em
Heat
Stage
Cool
Stages
Y3
Staging
Control
1st
Cool
Stage
2nd
Cool
Stage
3nd Cool
Stage
O/B/Y3
relay
Non
HP
NONE 2
0 2 Y1 Y1+Y2 O/B
Non
HP
GAS/OIL
OR ELEC.
3
1 1 W1 3 Dedicated (Y3) Y1 Y1+Y2 Y1+Y2+Y3 Y3
Non
HP
GAS/OIL
OR ELEC.
3
2 2 W1 W1+W2 3 Dedicated (Y3) Y1 Y1+Y2 Y1+Y2+Y3 Y3
Non
HP
NONE 3
0 3 Dedicated (Y3) Y1 Y1+Y2 Y1+Y2+Y3 Y3
Non
HP
GAS/OIL
OR ELEC.
3
1 1 W1 3 Unit Controller
(Y1+Y2)
Y1 Y2 Y1+Y2 O/B
Non
HP
GAS/OIL
OR ELEC.
3
2 2 W1 W1+W2 3 Unit Controller
(Y1+Y2)
Y1 Y2 Y1+Y2 O/B
Non
HP
NONE 3
0 3 Unit Controller
(Y1+Y2)
Y1 Y2 Y1+Y2 O/B
Installation Checklist
Item
Number
Item Yes No
1 Is the thermostat level where mounted on the wall?
2 Is the thermostat installed in a controlled space when using
dehumidication control with remote sensor?
3 Is the thermostat installed away from direct sunlight or discharge air vents?
4 Has the thermostat been wired correctly based on the type of
equipment installed (air handler, outdoor unit and accessories?
5 Is the thermostat wiring secured tightly to the terminals?
6 Is the common wire (terminal C) connected?
7 Has the System Test Mode located under the installer
settings been used to verify proper operation?