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TEC2145-4 N2 Networked Thermostat Controller with Single Proportional Output and One-Speed Fan 
Control Installation Instructions

12

UI3

Configuration of Universal Input 3.
Default: 

None

(None):

 No function is associated with an input.

(COC/NH):

 Changeover Contact/Normally Heat: A dry contact input 

is used to signal seasonal hot/cold water changeover. The contact 
closes when cold water is present. Valid only for two-pipe systems.

(COC/NC):

 Changeover Contact/Normally Cool: A dry contact input 

is used to signal seasonal hot/cold water changeover. The contact 
closes when hot water is present. Valid only for two-pipe systems.

(COS):

 Changeover analog Sensor: Used for hot/cold water 

changeover switching. Valid only for two-pipe systems.

Note:

Choose the selection option 

(0): Cooling Only

 for the 

SeqOpera parameter to allow changeover to occur between 

Cooling Only

 and 

Heating Only

. Choose the selection option 

(2): 

Cooling and Reheat

 to allow changeover to occur between 

Cooling and Reheat

 and 

Heating and Reheat

.

(SS):

 Supply Air Sensor Monitoring

Note:

The temperature readings from these sensors can be 

monitored at the thermostat controller or the supervisory controller.

MenuScro

Gives the option of having the 
display continuously scroll the 
parameters.
Default: 

on

(off):

 The scroll is inactive.

(on):

 The scroll is active.

AutoMode

Enables the Auto function (if 
Cooling with Reheat is chosen in 
the 

SeqOpera

 parameter) to be 

visible within the 

MODE

 key menu. 

(The 

MODE

 key is the key at the far 

left of the thermostat controller 
cover.)
Default: 

off

(on):

 The Auto function is active (Off-Auto-Heat-Cool). Provides 

automatic changeover between heating and cooling.

(off):

 The Auto function is inactive (Off-Heat-Cool).

C or F

Provides temperature scale options 
for display.
Default:

 °F

(°C):

 Celsius scale

(°F):

 Fahrenheit scale

Lockout

Selectable Lockout Levels for 
limiting end user keypad interaction.
Default: 

0

Lockout 
Level

Function

Mode 
Setting

Fan 
Setting

Local 
Override

Occupied 
Temperature 
Setpoints

(0)

Access

Access

Access

Access

(1)

Access

Access

No Access

Access

(2)

No Access

No Access

Access

Access

(3)

No Access

No Access

No Access

Access

(4)

No Access

No Access

Access

No Access

(5)

No Access

No Access

No Access

No Access

SeqOpera

Determines the sequence of 
operation.
Default:

 1

(0):

 Cooling Only (Off-Cool). The default is 

Cool

.

(1):

 Heating Only (Off-Heat). The default is 

Heat

.

(2):

 Cooling and Reheat (Off-Auto*-Heat-Cool). The default is 

Auto

.

(3):

 Heating and Reheat (Off-Heat). The default is 

Heat

.

*   Auto can be disabled with the AutoMode parameter.

Note:

Choose the selection option 

(0): Cooling Only

 when using a 

changeover sensor to allow changeover to occur between 

Cooling 

Only

 and 

Heating Only

.

Table 4:  Installer Configuration Menu  (Part 3 of 6)

Parameter 
Appearing 
on Display

Description and Default

Selection Options

Содержание TEC2145-4

Страница 1: ...the TEC2145 4 Thermostat Controller IMPORTANT The TEC2145 4 Thermostat Controller is intended to provide an input to equipment under normal operating conditions Where failure or malfunction of the the...

Страница 2: ...hermostat controller mounting base so that the arrow on the base points upward to indicate the top of the thermostat controller Note If you need to install the thermostat on an electrical junction box...

Страница 3: ...into the terminals be sure to properly twist the wires together prior to inserting them into the terminal connectors CAUTION Risk of Electric Shock Disconnect power supply before making electrical con...

Страница 4: ...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 REF Supervisory Controller BI2 U...

Страница 5: ...upply Air Temperature Change Over Temp UI3 ADI 9 N2 AI CSAD 40 0 F 40 0 C to 122 0 F 50 0 C Standby Heating SP1 2 ADI 10 N2 AO CSAD 40 0 F 4 5 C to 90 0 F 32 0 C Standby Cooling SP1 2 ADI 11 N2 AO CSA...

Страница 6: ...orresponding cooling heating setpoint to maintain the minimum deadband between the two setpoints 3 The TEC2145 4 does not support an Outdoor Air Temperature sensor The supervisory controller writes th...

Страница 7: ...m the thermostat controller or if the supervisory controller goes offline The thermostat controller does not maintain an internal command priority table The most recent command received by any of the...

Страница 8: ...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...

Страница 9: ...keys to choose the desired selection option 4 Press and release the OVERRIDE key to continue scrolling through the parameters Note Pressing the FAN key during configuration restarts the list of displa...

Страница 10: ...clng_wth_rht Deadband Reheat On Off Floating or Proportional Outputs Heating Output Cooling Output Off Off On On Figure 9 Cooling with Reheat Temperature Increase Increments of 1F 0 5C FIG htg_wth_rh...

Страница 11: ...contact is closed If the fan is set to Auto it is enabled only when the contact is closed If the fan is set to On it is not affected by this setting BI2 Configuration of Binary Input 2 Default None No...

Страница 12: ...The scroll is active AutoMode Enables the Auto function if Cooling with Reheat is chosen in the SeqOpera parameter to be visible within the MODE key menu The MODE key is the key at the far left of th...

Страница 13: ...mperature in 5 0F 5 0C increments St By CL1 Sets Stand by cooling setpoint limit value is between occupied and unoccupied cooling setpoints Default 78 0 F 25 6 C Range 54 0 F 12 0 C to 100 0 F 37 5 C...

Страница 14: ...Setpoint Adjustment The displayed setpoint is the setpoint from the last action taken by the thermostat controller or the setpoint currently in use The heating and cooling setpoints can be separated...

Страница 15: ...and fan On contact closed Unoccupied and fan On or Off contact open The output aligns with occupancy and the fan on command 4 Auxiliary N C Occupied and fan On contact open Unoccupied and fan On or Of...

Страница 16: ...dance with the programmable Binary Input BI2 Window Indicates that an outside window or door is open and has cancelled the thermostat controller heating or cooling action in accordance with the progra...

Страница 17: ...ommended Thermostat Controller Measurement Range 40 0 F 40 0 C to 122 0 F 50 0 C Sensor Type Local 10k ohm Johnson Controls Type II Negative Temperature Coefficient NTC Thermistor Sensor Resolution 0...

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