Honeywell RTH7400 Installation Manual page 20

Installation Guide
System setup
Select system type
Function
Press
0170
Options: 1
2
3
4
5
6
7
8
9
10
to select your system type:
s/t
Heat/cool: Gas, oil or electric heating with central air conditioning.
Heat pump: Single-stage heat pump (no backup or auxiliary heat).
Heat only: Gas, oil or electric heat without central air conditioning.
Heat only with fan: Gas, oil or electric heat without central air conditioning.
Hot water heat (no fan): Gas, oil or hot water heat without central air
conditioning.
Cool only: Central air conditioning only.
Multi-stage heat pump: Heat pump with backup or auxiliary heating.
Conventional multi-stage system: 2 heat stages (wires on W and W2),
2 cooling stages (wires on Y and Y2).
Conventional multi-stage system: 2 heat stages (wires on W and W2),
1 cooling stage (wire on Y).
Conventional multi-stage system: 1 heat stage (wire on W), 2 cooling
stages (wires on Y and Y2).