VT2007 and VT2207
2nd Stage Differential Settings
15
Differential Setting 2
nd
Stage ON
Fº (Cº) Differential
from 1
st
Stage
2
nd
Stage OFF
Fº (Cº) Differential
from 1
st
Stage
Comment
2n0 None None 2
nd
Stage is not
activated. Use the
setting on single
stage systems
2n1 0.5º F (.25º C) 0.5º F (.25º C) Takes out 2
nd
Stage before
satisfied
2n2
(Default Setting)
1.0 F (.50º C) 0.5º F (.25º C) Takes out 2
nd
Stage before
satisfied
2n3 1.5 F (.75º C) 0.5º F (.25º C) Takes out 2
nd
Stage before
satisfied
2n4 2.0 F (1.0º C) 0.5º F (.25º C) Takes out 2
nd
Stage before
satisfied
2n5
(for 2 Stage Heat)*
1.0 F (1.0º C) Same as 1
st
Stage 2nd Stg stays
energized until 1
st
Stg satisfied
2n6
(for 2 Stage Heat)*
1.0 F (1.0º C) Same as 1
st
Stage 2nd Stg stays
energized until 1
st
Stg satisfied
2n7
(for Dual Fuel)**
1.0 F (.50º C) Same as 1
st
Stage
VT2007 Only
(locks out 1
st
Stage on call for
2
nd
stage)
2n8
(for Dual Fuel)**
2.0 F (1.0º C) Same as 1
st
Stage
VT2007 Only
(locks out 1
st
Stage on call for
2
nd
stage)
• 2nd Stage Differential is the sum of “Cycle Rate” (See Page 4) and the “2nx”
selected (below)
• When thermostat is running in 2nd Stage, the HEAT and HI icons or (VT2207
only) the COOL and HI icons are displayed
• To reduce the 8 min delay between 1st and 2nd Stage, move the HEAT/
COOL switch to OFF and then press and hold YES & RUN together for 10
seconds.
* 2n5 and 2n6 are for 2 Stage Electric Heat systems and run 1st Stage until
1st Stage is satisfi ed.
** 2n7 and 2n8 are for Dual Fuel / Hybrid systems andlocks out 1st Stage
when 2nd Stage is energized (VT2007 only).
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