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Number
Description
218
Reversing Valve O/B
Cool Stages / Compressor
220
Stages 200=Conv / 200=HP
Heat Stages / Backup Heat
221
Stages Heat Stages
300
System Changeover
425
Smart Response
Minimum Cool Temperature
430
Setpoint (RTH7500 Only)
Maximum Heat Temperature
431
Setpoint (RTH7500 Only)
Air Filter 1 Replacement
711
Reminder
1415
Daylight saving time
NOTE: Once you have cycled through all of the System Setup numbers, Done is
displayed. Press Select to save and exit.
Options (factory default in bold)
0 = O (O/B in Cool)
1 = B (O/B in Heat)
Note: This option is only displayed if the Heat Pump configured. Select
whether reversing valve O/B should energize in cool or in heat.
0, 1, 2
Note: Select how many Cool or Compressor stages of your equipment
the thermostat will control. Maximum of 2 Cool/Compressor Stages. Set
value to 0 if you do not have Cool Stage/Compressor Stage.
Heat Stages: 1, 2
Backup Heat Stages: 0, 1
Note: Select how many Heat or Aux/E stages of your equipment the
thermostat will control. Maximum of 2 Heat Stages for conventional
systems. Maximum of 1 Aux/E stage for systems with more than 1
heating equipment type. Set value to 0 if you do not have Heat Stage/
Backup Heat Stage.
0 = Manual
1 = Automatic
Note: Thermostat can automatically control both heating and cooling
to maintain the desired indoor temperature. To be able to select
"automatic" system mode on thermostat home screen, turn this feature
ON. Turn OFF if you want to control heating or cooling manually.
0 = No
1 = Yes
Note: Smart Response is a comfort setting. Heat or Cooling equipment
will turn on earlier, ensuring the indoor temperature will match the
setpoint at the scheduled time. See page 15.
50 °F to 99 °F (50 °F)
10.0 °C to 37.0 °C (10.0 °C)
Note: The cool temperature cannot be set below this level.
40 °F to 90 °F (90 °F)
4.5 °C to 32.0 °C (32.0 °C)
Note: The heat temperature cannot be set above this level.
0 = Off
1 = 10 Run Time Days
2 = 20 Run Time Days
3 = 30 Run Time Days
4 = 45 Run Time Days
5 = 60 Run Time Days
6 = 90 Run Time Days
7 = 120 Run Time Days
8 = 150 Run Time Days
9 = 30 Calendar Days
Note: Set a reminder for when to change your air filter. Choose either
calendar or equipment run time-based reminder.
0 = Off
1 = On
Note: Set to Off in areas that do not follow Daylight Saving Time.
9
RTH7400/RTH7500 Series
10 = 45 Calendar Days
11 = 60 Calendar Days
12 = 75 Calendar Days
13 = 3 Calendar Months
14 = 4 Calendar Months
15 = 5 Calendar Months
16 = 6 Calendar Months
17 = 9 Calendar Months
18 = 12 Calendar Months
19 = 15 Calendar Months
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