User's Guide

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Changing system setup
System Setup Options (concluded)
Screen Title Settings and Options
Your heating system
type
If you selected Hot Water or Steam on “Your system type,” select the
specific heating system here.
Number of cooling
stages
Select 1 Stage (default) or 2 Stages. If you are unsure, note which wires
you have connected: ‘Y’ wire only (1 stage) or ‘Y’ and ‘Y2’(refer to your
check list in Step 6 on page 12.)
Number of heating
stages
Select 1 Stage (default) or 2 Stages. If you are unsure, note which wires
you have connected: ‘W’ wire only (1 stage) or ‘W’ and ‘W2’ (refer to your
check list in Step 6 on page 12.)
Your fan control Select whether your thermostat (default) or heating system controls the fan.
Type of changeover
valve
If you selected Heat Pump on “Your system type,“ select whether it uses a
cooling changeover valve (default) or heating changeover valve. f you are
unsure, note which wires you have connected: refer to your check list in
Step 6 on page 14.
Number of heat
pump compressor
stages
Select 1 Stage (default) or 2 Stages. If you are unsure, note which wires
you have connected: ‘Y’ wire only (1 stage) or ‘Y’ and ‘Y2’(refer to your
check list in Step 6 on page 14).
Your backup heat
No or Yes (default) you can determine whether you have backup heat by
refering to your check list in Step 6 on page 14.