TEC2045-2 Wireless Thermostat Controller with Single Proportional Output and One-Speed Fan Control
Installation Instructions
6
The Status LED, located beneath the cover, flashes at
5-second intervals to provide indication of the network
status of the thermostat controller. See Table 3.
Backlit Liquid Crystal Display (LCD)
The thermostat controller includes a 2-line, 8-character
backlit display. Low-level backlighting is present during
normal operation, and it brightens when any user
interface key is pressed. The backlight returns to low
level when the thermostat controller is left unattended
for 45 seconds.
Status Display Menu
The Status Display Menu is displayed during normal
operation. This menu continuously scrolls through the
following parameters:
•
Room Temperature
•
System Mode
•
Occupancy Status (Occupied/Unoccupied/
Override)
•
Applicable Alarms – The backlight lights up as an
alarm condition is displayed.
Note:
An option is available within the Installer
Configuration Menu to lock out the scrolling display and
show only the Room Temperature parameter.
Configuring the Thermostat Controller
The thermostat controller comes from the factory with
default settings for all configurable parameters. The
default settings are shown in Table 5. To reconfigure
the parameters using the user interface keys, follow the
steps in this section.
To access the Installer Configuration Menu, press and
hold the center key for approximately 8 seconds. Once
the Installer Configuration Menu begins, release and
press the center key to scroll through the parameters
listed in Table 5. When the desired parameter displays,
use the
UP/DOWN
arrow keys to choose the desired
selection option. Then press and release the center
key to continue scrolling through the parameters.
Note:
Pressing the
FAN
key during configuration
restarts the list of displayed parameters at the first
parameter listed in Table 5.
When the thermostat controller is in the Installer
Configuration Menu and left unattended for
approximately 8 seconds, the thermostat controller
reverts to the Status Display Menu.
Configuring Inputs BI1, BI2, and UI3
When BI1 and BI2 are configured for an alarm
condition, an alarm condition displays locally when the
input closes. An alarm message is included on the
scrolling Status Display Menu and when the message
is displayed, the backlight momentarily lights up.
The UI3 input provides changeover of hot/cold water
switching, or supply air temperature monitoring at the
thermostat controller.
Each input can be configured to the Selection Options
included in Table 4.
Configuring the Sequence of Operation (SeqOpera)
Choose the appropriate sequence of operation. The
modes presented are user-dependent on the sequence
of operation selected. For applications using a
changeover sensor, choose the selection option
(0): Cooling Only
. Changeover occurs between
Cooling Only
and
Heating Only
. See Figure 9 through
Figure 12 for sequence of operation example.
Table 3: Status LED
Flashes per
5-Second
Interval
Condition Indicated
1
Power On
2
Power On, Communicating
3
Power On, Communicating, Found
Wireless Network
4
Power On, Communicating, Found
Wireless Network, Communicating with
TEC20 Coordinator
Table 4: Selection Options for Sequence of Operation
Selection Option
Control Curve
Terminal Numbers Used
(See Figure 5.)
0: Cooling Only
See Figure 9.
10:
Proportional Cooling
1: Heating Only
See Figure 10.
10:
Proportional Heating
2: Cooling and Reheat
See Figure 11.
6 and 7:
Reheat
10:
Proportional Cooling
3: Heating and Reheat
See Figure 12.
6 and 7:
Reheat
10:
Proportional Heating
