WaterFurnace Premier2 Owner's Manual - Stages.
8
Premier2 Owner’s Manual
Important: Always allow the system at least five minutes to
respond to any changes in settings. The thermostat has been pro-
grammed to start the heating or cooling cycle in
stages.
Note: The electronic thermostat cannot be
set closer than 3
o
between heating and
cooling.
How do I set my
thermostat?
Mode button
Push and release the
MODE
button to select the desired
mode of operation. Each time the
MODE
button is pushed and released, the thermostat will
select a different mode. The different modes are as follows (in sequence):
OFF
System will not operate
COOL
Cooling operation only
HEAT
Heating operation only
AUTO
Heating or cooling operation
E HEAT
Heating with auxiliary heat only
Heat
Push and release the
MODE
button until the display
reads
HEAT
. Your system is now in the heating mode.
To review the heating setpoint, momentarily press either
the
or
button and you will see your current
setpoint displayed along with the words
DESIRED TEMP
illuminated on the display. The display will read
HEAT
and
ENERGY SAVINGS
when
the system is operating in either the first or second stage heating mode. The heating cycle
starts with the fan and compressor on a lower speed. (For single-speed units there is only one
compressor speed.) This lower fan speed reduces the sound level and increases air tempera-
ture. Note: It is normal for the Premier two-speed GeoExchange system to have extended run
times in low speed. The Premier two-speed is the most efficient in low speed operation. Should
the thermostat require maximum heat, the fan and compressor will switch to a higher speed.
(For single-speed units there is only one compressor speed.) During extreme cold weather,
additional heating capacity may be required. At such times, the thermostat will automatically
request auxiliary heating assistance, and display the words
AUX HT
. The
ENERGY
SAVINGS
on the display is not illuminated when auxiliary heat is being used.