TEC2045-4 Wireless Thermostat Controller with Single Proportional Output and One-Speed Fan Control
Installation Instructions
5
Setup and Adjustments
Thermostat Controller User Interface Keys
The user interface consists of keys on the front cover
(Figure 8). The function of each key is as follows:
•
MODE
key toggles among the system modes
available, as defined by selecting the appropriate
operation sequence in the Installer Configuration
Menu (Off, Heat, Cool, Auto).
•
FAN
key toggles between ON and AUTO for fan
control. ON energizes the fan all the time and
AUTO operates the fan only on a call for heating or
cooling, for both occupied and unoccupied periods.
•
OVERRIDE
key overrides the unoccupied mode to
occupied at the local user interface for the
specified TOccTime. (TOccTime is defined by
selecting the appropriate time period in the Installer
Configuration Menu.) If one of the binary inputs is
configured to operate as a remote override contact,
this
OVERRIDE
function is disabled. The
OVERRIDE
key also allows access to the Installer
Configuration Menu. See the
Configuring the
Thermostat Controller
section.
•
UP/DOWN
arrow keys change the configuration
parameters and activate a setpoint adjustment.
Figure 7: TEC2045-4 Thermostat Controller with Same Power Source for Auxiliary Contact
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Same 24 VAC
Power Source for Auxiliary Output
(24 VAC Maximum)
24 VAC
Thermostat Power
Fan
24 V~
Com
0 to 10 VDC
24 VAC
Com
Analog Output
and Valve
24 V~
Hot
AO1
Fan
Power and Fan
BO5
Aux
BO5
Aux
Aux Contact
(Isolated Common)
• Reheat
• Lighting
• On/Off Actuation
• Exhaust Fan
Aux
Load
BI2
UI3
BI1
Scom
- OR -
Remote Inputs
SS (Supply Sensor)
COS (Change Over Sensor)
Voltage-Free
Contact
• COC/NH
Normally Heat
Closed Contact
= Cold Water
• COC/NC
Normally Cool
Closed Contact
= Hot Water
Voltage-Free
Contact
• Door
• Remote
Override
• Filter Alarm
• Service Alarm
Voltage-Free
Contact
• Remote NSB
• Motion
• Window
Figure 8: Front Cover of TEC2045-4 Thermostat Controller
70.0ºF
Room Temp
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Status LED beneath cover
indicates network status.
Five keys on the thermostat controller
make operation easy and intuitive.
Backlit, plain text
Liquid Crystal Display (LCD)
is easy to read in any condition.
Light-Emitting Diodes (LEDs)
indicate system activity.
