Radio Thermostat CT110 Install Manual page 10

HVAC Setup on Screen
IMPORTANT: Make sure the CT110 is powered up and the mode is set to OFF. You must know what your
heat source is at this time: either Gas/oil heat or Electric heat (or AUX type for heat pumps.)
• Press the + and the - buttons at the same time, for 10 seconds.
This will put you in the HVAC SET UP screen.
• Use +/- buttons to select HVAC SET UP code on screen. You must select the correct HEAT type for your
system. In the upper left, the CT110 will display GAS for gas heat and ELEC for Electric heat for each code.
For HEAT PUMP systems CT110 will display GAS for gas auxiliary and ELEC for Electric auxiliary for each
code (if you have AUX heat).
The LCD display will show your selection. During setup, 2nd stage will blink when both heat and cool have
2nd stages.
If you have a Normal HVAC system...
1 stage HEAT, 1 stage COOL select
2 stage HEAT, 1 stage COOL select
1 stage HEAT, 2 stage COOL select
2 stage HEAT, 2 stage COOL select
Now double check that you have to select the
correct HEAT TYPE for your system. GAS is for Gas or Oil heat, ELEC is for electric heat.
If you have a HEAT PUMP HVAC system...
HEAT PUMP with no AUX heat
1
2 stage HEAT PUMP with no AUX
2
HEAT PUMP with AUX heat
3
HEAT PUMP with 2 stage AUX heat
4 2 stage HEAT PUMP with AUX heat
2 stage HEAT PUMP with 2 stage AUX heat select F
10
PG
select A
select b
select C
select d
select E