Instruction manual

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Three--Minute Minimum on Time
In normal operation, when a stage turns on, it will not turn off for a minimum of 3
minutes. If the setpoint is changed, this timer is canceled, allowing the equipment to
turn off immediately when the demand is removed.
Heat/Cool Setpoints (Desired Temperature)
A minimum difference of 1_ and maximum of 6_ is enforced between heating and
cooling desired temperatures. This is done by allowing 1 setting to “push” the other,
to maintain this difference. This difference is adjustable via Configuration Option
11.
Equipment On Indicators
When cooling equipment is on, a COOL ON icon is displayed. While cooling
equipment operation is delayed by the timeguard or cycle timer, COOL ON will
flash.ThesameistrueforHEATON.
When the W is energized in a heat pump, the auxiliary heat on icon will be
displayed.
Auto Changeover
When auto changeover mode is selected, a change from heat to cool (or vice versa)
will not occur until an opposite mode demand has existed for 20 minutes. If setpoint
is changed, 20--minute requirement is deleted.
Emergency Heat Mode
When AC/HP Control is configured as a heat pump and emergency heat is selected,
all Y signals are locked out, and W becomes energized upon a call for heat.