Home Automation RC-2000 - Manual (Page 20)

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EEC Control
The EEC Settings are used to configure Energy Efficient Control, 2
nd Stage Differential, and Auxiliary Heat
Differential. Not all of these features apply to all thermostat configurations. Only the features that apply to the
current configuration (based on the System Type and Stage Settings) of the thermostat will be available when
this menu is selected.
This thermostat is equipped with Energy Efficient Control (EEC) that continually monitors the performance of
the HVAC system and uses Stage 2 (heat or cool) and Stage 3 (auxiliary heat) only when necessary.
If the thermostat determines that Stage 1 is able to heat or cool at a rate of 5 degrees per hour or better, Stage 2
will not be used. If Stage 1 is unable to heat or cool at this rate, the thermostat will use Stage 2 as needed.
Under these conditions, Stage 1 will run continuously and Stage 2 will cycle on and off as needed. In extremely
cold conditions, the auxiliary heating will be used when Stage 1 and/or Stage 2 is not heating at a sufficient rate.
EEC: This item configures Energy Efficient Control (EEC). EEC continually monitors the performance of the
HVAC system and uses a PID algorithm and auto balance routine to achieve comfort while saving energy. A
setting of 0 will disable EEC. When EEC is disabled, the RC-2000 will attempt to maintain the temperature
within 0.5 degrees F of the setpoint. A lower setting of 2-3 can be used for slow reacting sources (e.g. radiant
heat) and higher setting of 7-8 for fast reacting sources (e.g. forced air). The default setting is 5.
2nd Stage Differential: This determines how far from the setpoint the temperature has to be before the second
stage turns on.
Auxiliary Heat Differential: This determines how far from the setpoint the temperature has to be before the
auxiliary heat turns on. This is only available for heat pump systems.
Start Delay (Minutes): This item sets the minimum amount of time the heating system must run before the
Auxiliary Heat Stage is used. To use this start delay, EEC must be enabled and Hold must be off.
EEC
Settings
Conventional (1 Cool / 1 Heat)
Zone Control (1 Cool / 1 Heat)
Conventional (2 Cool / 2 Heat)
Heat EEC *5 0 - 10 Heat EEC *5 0 - 10
Cool EEC *5 0 - 10 EEC *5 0 - 10
2nd Stage Differential *2 1 - 10
Start Delay (Minutes) *10 0 - 4hr:15min
Heat Pump and Dual Fuel Heat Pump
(1 Cool / 2 Heat)
Geothermal Heat Pump and Geothermal
Dual Fuel Heat Pump (1 Cool / 2 Heat)
Heat EEC *5 0 - 10 Heat EEC *5 0 - 10
Cool EEC *5 0 - 10 Cool EEC *5 0 - 10
Aux Heat Differential *2 1 - 10 Aux Heat Differential *2 1 - 10
Start Delay (Minutes) *5 0 - 4hr:15min Start Delay (Minutes) *45 0 - 4hr:15min
Heat Pump and Dual Fuel Heat Pump
(2 Cool / 3 Heat)
Geothermal Heat Pump and Geothermal
Dual Fuel Heat Pump (2 Cool / 3 Heat)
Heat EEC *5 0 - 10 Heat EEC *5 0 - 10
Cool EEC *5 0 - 10 Cool EEC *5 0 - 10
2nd Stage Differential *1 1 - 10 2nd Stage Differential *1 1 - 10
Start Delay (Minutes) *5 0 - 4hr:15min Start Delay (Minutes) *45 0 - 4hr:15min
Aux Heat Differential *2 1 - 10 Aux Heat Differential *2 1 - 10
Start Delay (Minutes) *10 0 - 4hr:15min Start Delay (Minutes) *3hr 0 - 4hr:15min