12
Installation Instructions
Check Dip Switch
Ensure which switch is correct for your
system. Dip switches are located on the
back of the thermostat.
GAS/EL
HP
OR
GAS/EL
HP
ON
1
2
3
ON
1
2
3
OR
O
B
B
O
ON
1
2
3
ON
1
2
3
GAS
ELEC
OR
GAS
ELEC
ON
1
2
3
ON
1
2
3
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1
GAS
O
GAS/EL
ELEC
B
HP
ON
23
1. When GAS/EL or HP is set for GAS/EL:
This switch (GAS or ELEC) controls how the
thermostat will control the Fan (G) terminal
in heating mode. When GAS is chosen, the
thermostat will not energize the Fan (G) terminal
in heating. When ELEC is chosen the thermostat
will energize the fan in heating.
2. When GAS/EL or HP is set for HP:
This switch (GAS or ELEC) defines the Aux Heat
type. When GAS is chosen, the auxiliary heat
will not be allowed to run during heat pump
operation. When using a Dual Fuel system, set
this switch for GAS. When ELEC is chosen, up to
two stages of auxiliary strip heat will be allowed
to run.
For Heat Pump Only
When the GAS/EL or HP dip switch is configured
for HP, this dip switch (O or B) must be set to
control the appropriate reversing valve. If O is
chosen, the W1/O/B terminal will energize in
cooling. If B is chosen, the W1/O/B terminal will
energize in heating.
This dip switch configures the thermostat to
control a conventional gas/electric system or a
heat pump. If your system is anything other than
a heat pump, leave this switch set for GAS/EL.
