Heat Pump Recovery Thermostat: Temp Profile Not What I Expected
My understanding is that modern heat pump thermostats anticipate changes in set point and act to ensure that the heat pump does the heating and not the auxiliary electrical coils. In addition I understood this meant that if one wanted the house at a certain temperature at a certain time one need not "second guess" the system by scheduling ramp up time, but instead let the thermostat figure it out.
The graph is a temperature profile shows that the heat pump doesn't start heating until the set point change at 5:30. And while it didn't trigger auxiliary heat it still didn't arrive at the desired temperature at 5:30.
Is this right
BTW: This is an American Standard system with AccuLink™ Platinum ZV Control