User’s Manual EM11A017
DCM601A71 intelligent Touch Manager
202
Cautions when Using Simultaneously with Other Control Functions
1. If a setpoint is changed from another function while this function is in control, the setpoint is
once changed by the other function but changed again by this function.
2. When used together with the Auto Changeover function, if the cool setpoint is lowered by this
function, the setpoint when the operation mode is changed to heating by the Auto Changeover
function may be unexpectedly low.
Example: When the lower limit setpoint is 68°F for this function and the Differential for the Auto
Changeover function is 7°F.
1. Heating is started with setpoint at 68°F.
2. When the room temperature becomes 75°F, the Auto Changeover function changes the
operation mode to Cool.
3. When operation mode changes to Cool, this function changes the setpoint according to
the outdoor temperature.
4. If the outdoor temperature decreases, the setpoint is lowered up to 68°F by this function.
5. When the room temperature further decreases and becomes 60°F, the Auto Changeover
function changes the operation mode to Heat. The setpoint at that time becomes 60°F.
3. Pre-Cool and Pre-Heat cannot be used when this function is set up.
4. When used together with the Temperature Limit function, the indoor unit may be repeatedly
started and stopped every 5 minutes (hunting) depending on the setpoint.
Example: When the setpoint for this function calculated from the outdoor temperature is 90°F
and the upper limit for the Temperature Limit function is 90°F.
1. When the room temperature exceeds 90°F, the Temperature Limit function orders
cooling to start.
2. This function sets the cooling setpoint to 90°F.
3. When the room temperature drops below 90°F, since room temperature < cool setpoint,
the Temperature Limit function orders cooling to stop.
4. The room temperature exceeds 90°F, and the Temperature Limit function orders cooling
to start. (Back to 1.)
To Next Page
Loading...
