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Published in U.S.A.

www.johnsoncontrols.com

TEC2102-3 N2 Networked Heat Pump Thermostat Installation Instructions

 17

Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc.

All other marks herein are the marks of their respective owners. © 2009 Johnson Controls, Inc.

Building Efficiency

507 E. Michigan Street, Milwaukee, WI  53202

Technical Specifications     

TEC2102-3 N2 Networked Heat Pump Thermostat

Power Requirements

19 to 30 VAC, 50/60 Hz, 2 VA (Terminals RC and C) at 24 VAC Nominal, Class 2 or 
Safety Extra-Low Voltage (SELV)

Relay Contact Rating

30 VAC, 1.0 A Maximum, 3.0 A In-Rush, Class 2 or SELV

Digital Inputs

Voltage-Free Contacts across Terminal C to Terminals DI1 and DI2

Wire Size

18 AWG (1.0 mm Diameter) Maximum, 22 AWG (0.6 mm Diameter) Recommended

Temperature Sensor Type

Local 10k ohm Type II Negative Temperature Coefficient (NTC) Thermistor

Temperature 
Range

Backlit 
Display

-40.0°F/-40.0°C to 122.0°F/50.0°C in 0.5° Increments

Heating 
Control

40.0°F/4.5°C to 90.0°F/32.0°C

Cooling 
Control

54.0°F/12.0°C  to 100.0°F/38.0°C

Accuracy

Temperature

±0.9F°/±0.5C° at 70.0°F/21.0°C Typical Calibrated

Default Minimum Deadband

2F°/1C° between Heating and Cooling

Ambient 
Conditions

Operating

32 to 122°F (0 to 50°C); 95% RH Maximum, Noncondensing

Storage

-22 to 122°F (-30 to 50°C); 95% RH Maximum, Noncondensing

Compliance

United States

UL Listed, File E27734, CCN XAPX, 
Under UL 873, Temperature Indicating and Regulating Equipment

FCC Compliant to CFR 47, Part 15, Subpart B, Class A

Canada

UL Listed, File E27734, CCN XAPX7, 
Under CAN/CSA C22.2 No. 24, Temperature Indicating and Regulating Equipment

Industry Canada, ICES-003

Europe

CE Mark, EMC Directive 89/336/EEC

Australia and 
New Zealand

C-Tick Mark, Australia/NZ Emissions Compliant

Shipping Weight

0.75 lb (0.34 kg)

The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these 
specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or 
misuse of its products.

Summary of Contents for TEC2102-3

Page 1: ... damage to the controlled equipment or other property additional precautions must be designed into the control system Incorporate and maintain other devices such as supervisory or alarm systems or safety or limit controls intended to warn of or protect against failure or malfunction of the thermostat This equipment has been tested and found to comply with the limits for a Class A digital device pu...

Page 2: ...rmostat mounting base so that the arrow on the base points upward to indicate the top of the thermostat 6 Drill a 3 16 in 5 mm hole at each of the two marked locations and tap nylon anchors included with the thermostat flush to the wall surface 7 Position the thermostat mounting base on the wall and use the two mounting screws included with the thermostat to secure the base to the surface as illus...

Page 3: ...material to prevent drafts from affecting the ambient temperature readings 3 Reinsert the screw terminal blocks onto the PCB 4 Reattach the thermostat cover to the mounting base top side first 5 Use a Phillips head screwdriver to reinstall the security screw on the bottom of the thermostat cover CAUTION Risk of Electric Shock Disconnect the power supply before making electrical connections to avoi...

Page 4: ...ut 1 Configurable Digital Input 2 Remote Room Temperature Sensor Sensor Common Outdoor Air Sensor N2 Bus Mixed Air or Discharge Air Sensor Function Y1 Y2 G RC C RH W1 O B Aux DI1 DI2 RS Scom OS REF MS Terminal DI1 DI2 If using the same power source for the thermostat and heating loads install a jumper across RC and RH Scom OS Outdoor Air Sensor 24 VAC Thermostat Power Y2 Y1 RC C Aux Heat RH W1 Aux...

Page 5: ...cent N2 command received by any of the Object Types listed in Table 1 controls the thermostat Overrides take priority over any local adjustment or command in the thermostat If a setpoint is overridden the thermostat adjusts the other setpoint if necessary to maintain the minimum deadband between the two setpoints The setpoints can be spread farther apart but can never be adjusted closer than 2F 1C...

Page 6: ...del Point Type Override Range Room Temp1 ADI 1 N2 AI CSAD 32 to 122 F 0 to 50 C Aux Temp Outdoor Temp1 ADI 2 N2 AI CSAD 40 to 122 F 40 to 50 C Heating SP1 2 Occupied Heating SP ADI 3 N2 AO CSAD 40 to 90 F 4 5 to 32 C Cooling SP1 2 Occupied Cooling SP ADI 4 N2 AO CSAD 54 to 100 F 12 to 37 5 C Setback Heating SP1 2 Unoccupied Heating SP ADI 5 N2 AO CSAD 40 to 90 F 4 5 to 32 C Setback Cooling SP1 2 U...

Page 7: ...10 read only If a setpoint is overridden the TEC if necessary adjusts the other setpoint to maintain the minimum deadband between the setpoints The setpoints can be spread further apart but can never be adjusted closer than the current minimum deadband value Failure to stay within the limits for a command results in an N2 Negative Acknowledge NAK error from the TEC2102 3 thermostat Overrides take ...

Page 8: ...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 Programming Overview section acce...

Page 9: ... the YES key to choose the desired selection option 4 Press the YES key and then the NO key to continue scrolling through the parameters To exit the Installer Configuration Menu at any time press the MENU key and press the YES key at the exit prompt To pass over a parameter without changing it press the NO key When the thermostat is in the Installer Configuration Menu and left unattended for appro...

Page 10: ...ess Temporary Temperature Setpoints Access Access No Access System Mode Setting Access No Access No Access Fan Mode Setting Access No Access No Access Pwr del1 Sets the delay time period at thermostat powerup or at each time power is removed and reapplied before any operation fan heating or cooling is authorized Also can be used to sequence the startup of multiple units in one location Default 10 ...

Page 11: ...fan operation after a heating or cooling cycle has ended The fan delay is only active when the fan is in the Auto mode Com addr N2 network address at the thermostat coincides with the address assigned at the supervisory controller Default 4 Range 1 to 255 TOccTime Sets the duration of the Temporary Occupancy Time when the thermostat is in the Unoccupied mode when a Schedule Override Function is en...

Page 12: ...pump operation may still be used above the high balance point Lo b p 3 Sets the low balance point the outdoor air temperature at which the heat pump operation terminates when the heat pump is in the heating mode Default 12 0 F 24 0 C Range 40 0 F 40 C to 30 0 F 1 0 C Below the low balance point only the auxiliary heat is used to maintain the heating setpoint Heat pump operation may still be used b...

Page 13: ... 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 unoccupied override state this is the first prompt 2 Press the YES key to resume the programmed schedule The thermostat returns to the Status Display Menu Entering Permanent Temperature Setpoints The first prompt appearing in the Main User ...

Page 14: ... to all prompts until the temperature setpoint prompt appears on the display it may be the first prompt Press the YES key to enter the temperature setting menu Press the YES key to change the occupied cooling setpoint Press the NO key to advance to the occupied heating setpoint menu Press the UP DOWN arrow keys to set the temperature Press the YES key to store the value and advance to the next men...

Page 15: ...he fan all the time for occupied states and only on a call for heating or cooling in unoccupied states This is the default setting To select the fan mode while in the Main User Menu 1 Press the NO key to all prompts until the fan mode prompt appears on the display Press the YES key to set the fan mode 2 Press the UP DOWN arrow keys to locate the desired fan mode Press the YES key to select the des...

Page 16: ...o not exceed the maximum number of devices allowed on the N2 Bus per supervisory controller limitations The thermostat does not have power Apply power to the thermostat The N2 cable runs are broken Locate the break and correct the wiring The thermostat device type is incorrect Change the thermostat device type to VND N2 Bus is Offline The wiring on the N2 Bus is broken Repair the wiring No point m...

Page 17: ...0 C in 0 5 Increments Heating Control 40 0 F 4 5 C to 90 0 F 32 0 C Cooling Control 54 0 F 12 0 C to 100 0 F 38 0 C Accuracy Temperature 0 9F 0 5C at 70 0 F 21 0 C Typical Calibrated Default Minimum Deadband 2F 1C between Heating and Cooling Ambient Conditions Operating 32 to 122 F 0 to 50 C 95 RH Maximum Noncondensing Storage 22 to 122 F 30 to 50 C 95 RH Maximum Noncondensing Compliance United St...

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