Disable/Enable Second Cooling Stage (C Stage)
This parameter reverts the operation of two-stage
thermostats to a single stage when the second cooling
stage is not needed.
To enable or disable the second cooling stage while in
the Installer Configuration Menu:
1. Answer NO to all prompts until the setting cooling
stages prompt appears in the display. Press YES
to enter the Setting Cooling Stages Menu.
2. Using the UP/DOWN arrow keys, select
1.0
or
2.0
stages. Press YES to store the selection.
The display now shows the heating lockout prompt.
See the
Setting the Heating Lockout (H lock)
section
for instructions.
Setting the Heating Lockout (H lock)
This feature disables heating operation based on
auxiliary or outdoor air temperature (requires
temperature sensor to be connected to the
Auxiliary/Outdoor Air Sensor terminal OS for the
function to be enabled [Figure 5]). If the outdoor air
temperature is above the heating lockout temperature,
heating operation is disabled.
The heating lockout temperature parameter is
adjustable from -15 to 123
°
F (-26 to 51
°
C) in
increments of 5 F/C
°
.
Note:
Setting the heating lockout above 122
°
F
(50
°
C) disables the heating lockout feature. The
maximum temperature displayed is 122
°
F (50
°
C).
To change the outdoor air temperature-heating lockout
while in the Installer Configuration Menu:
1. Answer NO to all prompts until the heating lockout
prompt appears in the display. Press YES to enter
the Heating Lockout Menu.
2. Use the UP/DOWN arrow keys to adjust the
lockout temperature. Press YES to store the value.
The display now shows the cooling lockout prompt.
See the
Setting the Cooling Lockout (C lock)
section
for instructions.
Setting the Cooling Lockout (C lock)
This feature disables cooling operation based on
outdoor air temperature (requires outdoor air
temperature sensor to be connected for the function to
be enabled). If the outdoor air temperature is below
the cooling lockout temperature, cooling operation is
disabled.
The cooling lockout temperature parameter is
adjustable from -40 to 95
°
F (-40 to 35
°
C) in increments
of 5 F/C
°
.
To change the outdoor air temperature-cooling lockout
while in the Installer Configuration Menu:
1. Answer NO to all prompts until the cooling lockout
prompt appears in the display. Press YES to enter
the Cooling Lockout Menu.
2. Use the UP/DOWN arrow keys to adjust the
lockout temperature. Press YES to store the value.
The display now shows the Economizer Changeover
Setpoint Menu. See the
Setting the
Economizer
Changeover Temperature (Chngstpt)
section for
instructions.
Setting the Economizer Changeover Temperature
(Chngstpt)
The TEC2104-1 economizer changeover strategy is
based on outdoor air temperature (requires outdoor air
temperature sensor). When the outdoor air
temperature is below the changeover setpoint, free
cooling is used (economizer). When the outdoor air
temperature is above the setpoint, mechanical cooling
is used (compressor).
To adjust the changeover setpoint while in the Installer
Configuration Menu:
1. Answer NO to all prompts until the economizer
changeover setpoint prompt appears in the
display. Press YES to enter the Changeover
Setpoint Menu.
2. Use the UP/DOWN arrow keys to adjust the
economizer changeover temperature. Press YES
to store the value.
The display now shows the Outside Damper Minimum
Position Menu. See the
Setting the Outdoor Air
Damper Minimum Position (Min pos)
section for
instructions.
Setting the Outdoor Air Damper Minimum Position
(Min pos)
The minimum position for the outdoor air dampers on
the economizer can be adjusted as necessary. The
dampers are energized to minimum position when the
fan (G terminal) is energized and the thermostat is in
the occupied mode. When the schedule is in the
unoccupied mode, the minimum position is 0%.
To set the minimum position for the outdoor air
dampers while in the Installer Configuration Menu:
1. Answer NO to all prompts until the minimum
position setpoint prompt appears in the display.
Press YES to enter the Minimum Position Menu.
2. Use the UP/DOWN arrow keys to adjust the
minimum position for the outdoor air damper.
Press YES to store the value.
The display now shows the Mechanical Cooling Mode
Menu. See the
Setting the Mechanical Cooling Mode
(C mech)
section for instructions.
TEC2104-1 Networked Multi-Stage Economizer Thermostat Installation Instructions
13
