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6
9 Stage 1 compressor
cycle rate (CPH)
3 Recommended for most compressors
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]
10 Stage 2 compressor
cycle rate (CPH)
3 Recommended for most compressors
[Other cycle rate options: 1, 2, 4, 5 or 6 CPH]
12 Manual/Auto
changeover
0 Manual changeover (Heat/Cool/Off)
1 Auto changeover (Heat/Cool/Auto/Off)
2 Auto changeover only (Auto)
14 Temperature
display
0 Fahrenheit
1 Celsius
15 Compressor
protection
5 Five-minute compressor off time
[Other options: 0, 1, 2, 3 or 4-minute off time]
26 Auxiliary heat control
0 Comfort
1 Economy
27 Heat temperature
range stops
90 Max. heat temperature setting is 90 °F (32 °C)
[Other options: 40 °F to 89 °F (4.5 °C to 31.5 °C)]
28 Cool temperature
range stops
50 Min. cool temperature setting is 50 °F (10 °C)
[Other options: 51 °F to 99 °F (10.5 °C to 37 °C)]
Setup function Settings & options (factory default in bold)
Shaded areas below apply only to TH5320U/TH5220D or as otherwise noted.
Special function
Auxiliary heat control (Setup Function 26):
Comfort Setting: The thermostat will prioritize comfort over economy
depending on heat pump performance, load conditions and whether the
thermostat is calling for the heat pump. Raising the temperature just a few
degrees will often activate the auxiliary heat.
Economy Setting: The thermostat will attempt to reach the temperature setting
without activating the auxiliary heat. The thermostat will wait to activate the
auxiliary heat depending on heat pump performance, load conditions and how
many degrees the temperature setting is changed.