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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;
}

See Also