Auxiliary strategy

auxiliary_strategy – control strategy for auxiliary heat in houses

Synopsis
module residential; class house { set {LOCKOUT=4, TIMER=2, DEADBAND=1, NONE=0} auxiliary_strategy; } object house { auxiliary_strategy DEADBAND|LOCKOUT|TIMER; }

NONE
If auxiliary heat is being used, at least one auxiliary_strategy should be specified.

LOCKOUT
Auxiliary heat will come "on" whenever thermostat calls for heating and outdoor air temperature is below the value set for aux_heat_temperature_lockout. It remains "on" until the thermostat is satisfied.

DEADBAND
(default) Auxiliary heat will come "on" when indoor air temperature drops by more than the value set for aux_heat_deadband below the heating_setpoint. It remains "on" until the thermostat is satisfied.

TIMER
Auxiliary heat will come "on" when heating_system_type has been "on" for longer than the value specified for aux_heat_time_delay. It remains "on" until the thermostat is satisfied.

Default
When auxiliary_system_type is set to ELECTRIC, the default setting for auxiliary_strategy is DEADBAND (with 2 degF).

Example
object house { heating_system_type HEAT_PUMP; cooling_system_type ELECTRIC; auxiliary_system_type ELECTRIC; auxiliary_strategy TIMER|LOCKOUT; aux_heat_time_delay 5 min; aux_heat_temperature_lockout 10 degF; }