Setup And Adjustments - Johnson Controls TEC2045-2 Installation Instructions Manual

Power and Fan
Analog Output AO1
and Valve
0 to 10 VDC
24 VAC
Com
24 VAC
Thermostat Power
Figure 7: TEC2045-2 Thermostat Controller with Same Power Source for Auxiliary Contact

Setup and Adjustments

Overview
Figure 8 shows the front cover, including features used
for setting up and adjusting the thermostat controller.
Status LED
(beneath cover)
Backlit
Plain-Text
LCD
System
Activity
LEDs
Intuitive
Operation
Keys
Figure 8: Front Cover
User Interface Keys
The user interface consists of keys on the front cover
(as illustrated in 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 (for example Off, Heat, Cool, Auto).
TEC2045-2 Wireless Thermostat Controller with Single Proportional Output and One-Speed Fan Control
Installation Instructions
Same 24 VAC
Power Source for Auxiliary Output
(24 VAC Maximum)
24 V~ BO5 BO5
24 V~
Fan
Com
Hot
Aux Aux
Aux
Fan
Load
Room Temp
70.0ºF
MODE FAN
Independent
Contacts
• Reheat
• Lighting
• On/Off Actuation
• Exhaust Fan
Remote Inputs
BI1
Scom
Voltage-Free
Contact
- OR -
• Remote NSB
• Motion
• Window
SS (Supply Sensor)
COS (Change Over Sensor)
• 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.) The OVERRIDE key also
allows access to the Installer Configuration Menu.
See the Configuring the Thermostat Controller
section.
Note: If one of the binary inputs is configured to
operate as a remote override contact, this
OVERRIDE key is disabled.
• UP/DOWN arrow keys change the configuration
parameters and activate a setpoint adjustment.
Light-Emitting Diodes (LEDs)
Three System Activity LEDs are included to indicate
the status and actions of the thermostat controller:
• The FAN LED is on when the fan is on.
• The HEAT LED is on when heating or reheat is on.
• The COOL LED is on when cooling is on.
Voltage-Free
Contact
• Door
• Remote
BI2 UI3
Override
• Filter Alarm
• Service Alarm
Voltage-Free
Contact
• COC/NH
Normally Heat
Closed Contact
= Cold Water
• COC/NC
Normally Cool
Closed Contact
= Hot Water
5