
14
CAUTION
!
Emergency System
EMER bypasses the Heat Pump to use the heat source wired
to terminal E/W1 on the thermostat. EMER is typically used
when compressor operation is not desired, or you prefer
back-up heat only.
1. Press SYSTEM button to select EMER. "EMER" will flash
on the display.
2. Press
to adjust thermostat setting above room
temperature. The Emergency heating system will begin to
operate. The display will show "STG1" flashing "EMER"
and "HEAT" to indicate that the Emergency system is
operating.
3. Press
to adjust the thermostat below room tempera-
ture. The Emergency heating system should stop operat-
ing.
To prevent compressor and/or property damage, if the
outdoor temperature is below 50°F, DO NOT operate
the cooling system.
Cooling System
1. Press SYSTEM button to select COOL.
2. Press to adjust thermostat setting below room
temperature. The blower should come on immediately on
high speed, followed by cold air circulation. The display
should show "STG1". If the setpoint temperature display
is flashing, the compressor lockout feature is operating
(see Configuration menu, item 5).
3. Adjust temperature setting to 3° below room temperature.
The second stage cooling should begin to operate and
the display should show "STG 1+2".
4. Press
to adjust the temperature setting above room
temperature. The cooling system should stop operating.
Remote Temperature Sensor Information
on the Thermostat Display
During normal operation, the upper left of the thermostat
display changes every 6 seconds to show the temperatures
at the sensors that are turned on in the configuration menu.
The sensors are the thermostat (LOCAL), the outdoor
remote sensor (OUTDOOR) and the indoor remote sensor
(REMOTE). Below that, the display alternately shows the
time and temperature average of the sensors that are turned
on.
The word "SIGNAL" is shown along with number of bars (1-
3) indicating the relative signal strength. More bars mean
better reception. The antenna icon also displays for few
seconds when information from the remote sensor is
received.
If the thermostat does not receive an update signal from an
enabled remote sensor (REMOTE or OUTDOOR) for 30
minutes or more, the thermostat will display FAULT and
ANTENNA icons continuously. The REMOTE or OUTDOOR
sensor that has communication with the thermostat inter-
rupted will display a temperature of --. If the active sensor is
the REMOTE, the thermostat will revert back to LOCAL
sense only mode.
OPERATING YOUR THERMOSTAT AND REMOTE SENSOR
Automatic System Changeover
When the thermostat is in the AUTO mode, the thermostat
will call for heat or cool depending on the room temperature.
The setpoint temperature displayed will be the last mode
called. If the last system cycle was heat, the HEAT setpoint
will be displayed. If the room temperature raises above the
HEAT setpoint and the COOL setpoint and a call for cool is
required, the temperature displayed will change to be the
COOL setpoint.
If you manually override the temperature in AUTO and it
does not switch to the mode (HEAT or COOL) that you want,
press the
and keys once, at the same time to switch
modes. At the end of your override time it will revert back to
AUTO.
Second Stage Time Delay
Your thermostat is designed to determine the optimum time
to activate the second stage. Simply raising the temperature
in heating or lowering it in cooling will not always force the
thermostat to bring the second stage on quickly. If the fast
second stage option in the configuration menu (step 12) is
set to "OFF", there is a delay from 0-30 minutes depending
on the performance of the first stage of the system.
EXAMPLE: For the last 2 hours the thermostat is set on 70°
and the room temperature is 70° with the equipment using
only the first stage of heat. Since the equipment is keeping
the temperature within 1 degree of setpoint, the thermostat
will delay second stage for a longer time if you manually
raise the temperature or if the room temperature quickly
changes. Once the second stage comes on, it will come on
sooner the next time there is a difference between the
setpoint and the room temperature. The net effect of the
staging program is that when the first stage is capable of
holding temperature, the second stage will delay longer.
When the thermostat calculates that first stage cannot make
temperature in a reasonable time, the second stage will
come on sooner. This built in function automatically opti-
mizes the use of additional stages of heat or cool.
Learn Mode Option
Your thermostat is configured at the factory to recognize the
wireless remote sensor shipped with it. This sensor is stored
as Sensor A. The Learn Mode Option must be performed on
the thermostat and wireless remote sensor if:
• A wireless remote sensor is added to another channel.
• The wireless remote sensor is replaced.
• The thermostat is replaced.
• The thermostat has been reset using
, , and
SYSTEM keys.
During the Learn Mode, the wireless remote sensor will
transmit identification information every ten seconds for ten
minutes. In this ten-minute period, the display will show
“LEARN” and the antenna icon will show for a short time with
each transmission. The thermostat will be receiving the
transmitted identification information.
To perform the Learn Mode on the thermostat and sensor:
Remove the batteries from all wireless remote sensors in
the same building except the sensor you are going to put
into the Learn Mode. This will prevent interference from
the other sensors.
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