Step 7
Check Dip Switch
1) Ensure which switch is correct for your system. Dip switches are
located on the back of the thermostat
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
.
For Heat Pump Only
When the GAS/EL 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.
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 when
heating. When
GAS
is chosen, the thermostat
will not
energize the Fan (G) terminal, the HVAC will take over
the fan control. 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.
10
GAS/EL
HP
OR
GAS/EL
HP
ON
1
2
3
ON
1
2
3
GAS/
ELEC
OR
GAS
/ELEC
ON
1
2
3
ON
1
2
3
OR
O
B
B
O
ON
1
2
3
ON
1
2
3
GAS/EL
HP
OR
GAS/EL
HP
ON
1
2
3
ON
1
2
3
GAS/
ELEC
OR
GAS
/ELEC
ON
1
2
3
ON
1
2
3
OR
O
B
B
O
ON
1
2
3
ON
1
2
3
GAS/EL
HP
OR
GAS/EL
HP
ON
1
2
3
ON
1
2
3
GAS/
ELEC
OR
GAS
/ELEC
ON
1
2
3
ON
1
2
3
OR
O
B
B
O
ON
1
2
3
ON
1
2
3
GAS/EL
GAS
O
ON
1 2 3
HP
ELEC
B
GAS/EL
GAS
O
ON
1 2 3
HP
ELEC
B
