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TEC22x2-3 L

ON

W

ORKS

® Networked Heat Pump Thermostat Installation Instructions 

5

Setup and Adjustments

Thermostat Operation Overview

Thermostat User Interface Keys

The TEC22x2-3 thermostat user interface consists of 
five keys on the front cover (as illustrated in Figure 9). 
The function of each key is as follows:

Use  the 

YES/SCROLL

 key to:

-

confirm menu selections and to advance to the 
next menu item

-

stop the Status Display Menu from scrolling 
and to manually scroll to the next parameter on 
the menu

Note:

When the thermostat is left unattended for 

45 seconds, the thermostat display resumes scrolling.

Use  the 

NO

 key to decline a parameter change and 

to advance to the next menu item.

Use  the 

MENU

 key to:

-

access the Main User Menu or to exit the menu 
(See the 

Main User Menu

 section.)

-

access the Installer Configuration Menu or to 
exit the menu (See the 

Configuring the 

TEC22x2-3 Thermostat

 section.)

Use  the 

UP/DOWN

 arrow keys to change the 

configuration parameters and to activate a setpoint 
adjustment.

Backlit Liquid Crystal Display (LCD)

The TEC22x2-3 thermostat 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 is left unattended for 
45 seconds.

Light-Emitting Diodes (LEDs)

Three LEDs are included to indicate the fan status, call 
for heat, or call for cooling:

The 

FAN

 LED is on when the fan is on.

The 

AUX HEAT

 LED is on when auxiliary heat is 

on.

The 

HEAT PUMP

 LED is on when the heat pump 

compressor is on.

Programming Overview

There are three menus used to view, program, and 
configure the TEC22x2-3 thermostat.

The 

Status Display Menu

 is displayed during normal 

thermostat operation. This menu continuously scrolls 
through the following parameters:

Room Temperature

Clock (TEC2262-3 only)

System Mode

Occupancy Status – Occupied/Unoccupied/
Override

Outdoor Temperature – An outdoor air temperature 
sensor must be connected.

Applicable Alarms – The backlight lights up as an 
alarm condition is displayed.

Note:

Press the YES/SCROLL key to temporarily stop 

this menu from scrolling.

The 

Main User Menu

 is used to access and change 

the basic operating parameters of the thermostat. 
Access this menu by pressing the 

MENU

 key during 

normal thermostat operation.

The 

Installer Configuration Menu

 is used to set up 

the thermostat for application-specific operation. To 
access this menu, press and hold the 

MENU

 key for 

approximately 8 seconds.

Figure 9: Front Cover of Thermostat

70.0ºF

Room Temp

YES

NO

Backlit, plain text

LCD is easy to read

in any condition.

Five keys on the thermostat
make operation easy and intuitive.

LEDs indicate
system activity.

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Summary of Contents for TEC22 2-3 LonWorks Series

Page 1: ...appareil num rique de la Classe A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada Installation Location Considerations Locate the TEC22x2 3 thermostat on a partitioning...

Page 2: ...into the locking tabs on the thermostat mounting base 9 Pull the pull tabs on each of the connectors and remove the screw terminal blocks as illustrated in Figure 4 Wiring When an existing thermostat...

Page 3: ...Table 1 Terminal Identification See Figure 5 Number Label Function 1 Y2 Energizes second stage compressor on a call for heating or cooling 2 Y1 Energizes first stage compressor on a call for heating o...

Page 4: ...k wiring in the same conduit as line voltage wiring 30 VAC or above or other wiring that switches power to highly inductive loads such as contactors coils motors or generators The LONWORKS network req...

Page 5: ...el when the thermostat is left unattended for 45 seconds Light Emitting Diodes LEDs Three LEDs are included to indicate the fan status call for heat or call for cooling The FAN LED is on when the fan...

Page 6: ...the UP DOWN arrow keys simultaneously for 5 seconds to broadcast the thermostat s Neuron Identification on the LONWORKS network If the cover is removed you can see a green LED under the LON board fla...

Page 7: ...ccess No Access System Mode Setting Access No Access No Access Fan Mode Setting Access No Access No Access Schedules Setting5 Access No Access No Access Clock Setting5 Access Access Access Pwr del2 Se...

Page 8: ...ycle has ended The fan delay is only active when the fan is in the Auto mode TOccTime Sets the duration of the Temporary Occupancy Time when the thermostat is in the Unoccupied mode when a Schedule Ov...

Page 9: ...desired occupied temperature either at the start of the occupied schedule or after the occupied schedule begins Note Progressive recovery is disabled if either DI1 or DI2 is configured as remote NSB D...

Page 10: ...auxiliary heat is energized and the heat pump is shut off This typically applies when the air handler heat pump coil is installed after the auxiliary heat There is a 2 minute delay to restart the heat...

Page 11: ...at is in the unoccupied override mode To resume the schedule while in the Main User Menu 1 Press the NO key to all prompts until the Cancel ovrd Y N prompt appears If the thermostat is in the unoccupi...

Page 12: ...ess the UP DOWN arrow keys to locate the desired system mode Press the YES key to select the desired system mode 3 Press the YES key to return to the Status Display Menu or press the NO key to return...

Page 13: ...e to change the time in 1 minute increments press and hold down the keys to change the time in 30 minute increments Note Programming one of the digital inputs to remote NSB disables the menu Table 4 P...

Page 14: ...ess the UP DOWN arrow keys to set the first unoccupied start time Press the YES key to enter the time RoomTemp 75 0 F Schedule set Y N Monday set Y N Occupied day Y N Occupied 12 00 AM Unoccup 12 00 A...

Page 15: ...ess the YES key to store the day 6 Press the YES key to choose the time format or press the NO key to access the Main User Menu exit prompt 7 Press the UP DOWN arrow keys to select the desired time fo...

Page 16: ...voltage between RC and C to be from 19 30 VAC 2 Check for tripped fuse or circuit breaker Overloaded power transformer Verify that the transformer used is powerful enough enough VAs to supply all con...

Page 17: ...splay Replace the thermostat Auxiliary heat does not operate Wrong mode selected Select Emergency Heat mode Thermostat in Unoccupied mode Select Override to force the thermostat Occupied heating setpo...

Page 18: ...essages Display Function Service Indicates that there is a service alarm in accordance with the programmable Digital Inputs DI1 or DI2 Filter Indicates that the filter s is dirty in accordance with th...

Page 19: ...pliant to CFR 47 Part 15 Subpart B Class A LONMARK Certification 3 4 pending Canada UL Listed File E27734 CCN XAPX7 Under CAN CSA C22 2 No 24 Temperature Indicating and Regulating Equipment Industry C...

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