RTH7400/RTH7500
19 69-2104ES—01
System setup
Setup functions Settings & Options
0170 Select System
Type Press s/t to select your system type:
1 Heat/cool: Gas, oil or electric heating with central air conditioning.
2 Heat pump: Heat pump without backup or auxiliary heat.
3 Heat only: Gas, oil or electric heat without central air conditioning.
4 Heat only with fan: Gas, oil or electric heat without central air con-
ditioning.
5 Hot water heat only (no fan): Gas, oil or hot water heat without
central air conditioning.
6 Cool only: Central air conditioning only.
7 Heat pump: Heat pump with backup or auxiliary heating.
8 Heat/Cool Multiple stages: 2 heat stages (wires on W and W2),
2 cooling stages (wires on Y and Y2).
9 Heat/Cool Multiple stages: 2 heat stages (wires on W and W2),
1 cooling stage (wire on Y).
10 Heat/Cool Multiple stages: 1 heat stage (wire on W), 2 cooling
stages (wires on Y and Y2).