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Johnson Controls TEC3310 - User Manual

Johnson Controls TEC3310
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TEC3000 Series On/Off or Floating Fan Coil and Individual Zone
Thermostat Controllers with Dehumidification Capability
Installation Instructions
1
Refer to the QuickLIT website for the most up-to-date version of this document.
Applications
The TEC3000 Series On/Off or Floating Fan Coil and Individual Zone Thermostat Controllers are stand-alone and
field-selectable BACnet® MS/TP or N2 networked devices that provide control of the following:
local hydronic reheat valves
pressure-dependent variable air volume (VAV) equipment with or without local reheat
two- or four-pipe fan coils
cabinet unit heaters
other individual zone equipment using an on/off or floating control input
The networked models feature a field-selectable Building Automation System (BAS) BACnet MS/TP or N2
communication capability that enables remote monitoring and programming for efficient space temperature control.
All models include a USB port configuration that reduces installation time by allowing simple backup and restore
features from a USB drive, which enables rapid cloning of configuration between like units.
Some models have occupancy sensing capability built into the device. These thermostat controllers maximize up to
30% energy savings in high-energy usage commercial buildings, such as schools and hotels, during occupied
times by using additional standby setpoints.
All models feature an intuitive onboard touchscreen UI with backlit display that makes setup and operation quick
and easy. Multiple fan configurations are supported for fan coil equipment types:
single-speed
multi-speed (two or three discrete speeds)
variable-speed/EC motors (0 to 10 VDC control)
Some models support dehumidification on two-pipe fan coil units with reheat, and four-pipe fan coil units with or
without reheat. When no heating is required, the thermostat controller monitors space humidity and activates
dehumidification control as necessary. Heat and/or reheat is used as required to maintain the space temperature.
For optimal dehumidification performance, use a fan coil unit that has a multi-speed or variable-speed fan (VSF).
TEC3000 Series On/Off or Floating Fan Coil and Individual
Zone Thermostat Controllers with Dehumidification
Capability
Installation Instructions
TEC3310-xx-xxx, TEC3311-xx-xxx, TEC3312-xx-xxx, TEC3313-xx-xxx,TEC3610-xx-xxx, TEC3611-xx-xxx, TEC3612-xx-xxx, TEC3613-xx-xxx
Part No. 24-10787-6, Rev.
F
Issued July 2018
(barcode for factory use only)
24-10787-6, Rev. F
*24107876F*

Questions and Answers

  • C
    Christopher PaceSep 2, 2025
    Why does the zone temperature change too much in unoccupied mode on my Johnson Controls TEC3310?
    • T
      Tammy TurnerSep 3, 2025
      If the zone space temperature on your Johnson Controls Controller increases or decreases too much when the unit is active in unoccupied mode, it's likely that the heating and cooling equipment are too big for the unoccupied space. To fix this, decrease the Unoccupied Off Delay parameter from 10 minutes to a more suitable time for your equipment configuration.
  • C
    Christina SmallSep 3, 2025
    What does 'Supply Fan Runtime Limit Extended' mean on my Johnson Controls Controller?
    • V
      Veronica HowellSep 3, 2025
      If your Johnson Controls Controller displays 'Supply Fan Runtime Limit Extended', it means the supply fan runtime has exceeded the configured limit. You should service the supply fan and then reset the supply fan runtime.
  • H
    Heather JarvisSep 4, 2025
    Why does my staged equipment shut off early with PID control on my Johnson Controls TEC3310?
    • L
      Lisa ClarkeSep 4, 2025
      If the staged equipment on your Johnson Controls Controller shuts off above the cooling setpoint or below the heating setpoint when the PID is running (but not in On/Off Control mode), it is expected behavior. The PID control algorithm minimizes overshoot and energy usage, which may cause the equipment to cycle before reaching the setpoint.
  • M
    Michelle WhiteSep 5, 2025
    Why does my staged equipment cycle too fast or slow with PID on my Johnson Controls TEC3310 Controller?
    • J
      John FrostSep 5, 2025
      If the staged equipment on your Johnson Controls Controller cycles too rapidly or slowly when the PID is running, the control band around the setpoint is likely set incorrectly for your equipment, zone, or preference. Verify that the equipment's minimum on/off times are set correctly. If the default deadband doesn't provide the desired temperature control, set Temp Control Setup to Deadband Override and adjust the Deadband parameter to your preferred value.
  • R
    Ruben HuntSep 6, 2025
    What to check if the zone temperature is too cold on my Johnson Controls TEC3310 Controller?
    • S
      summersallenSep 6, 2025
      If your Johnson Controls Controller displays 'Zone Temperature Too Cold', it means the zone temperature has dropped below the configured Zone Temp Low Limit. To address this, verify that the TEC and the RTU heating are enabled and functioning correctly.

Summary

Installation Instructions

Applications

Details the standalone and networked applications for TEC3000 series controllers.

Installation Steps

Covers parts, location, and the physical process of installing the thermostat.

Wiring Diagrams and Connections

Setup and Adjustments

USB Port Operations

Instructions for firmware updates and configuration backup/restore using USB.

Fan Configuration

Details on setting fan types, speeds, and modes for fan coil units.

Dehumidification Control Configuration

Configuration details for enabling and adjusting dehumidification on fan coil units.

PID;PRAC+ Automatic Control Tuning

How to reset and manage the controller's PID tuning for optimal performance.

Occupancy Configuration

Methods for setting occupancy schedules and sources for the thermostat.

Commissioning Mode

How to test equipment wiring and functionality during installation.

Troubleshooting and Specifications

Fault List

Lists common faults, probable causes, and solutions for the TEC3000 controller.

Troubleshooting Details

Provides detailed explanations for symptoms and their resolutions.

Johnson Controls TEC3310 Specifications

General IconGeneral
BrandJohnson Controls
ModelTEC3310
CategoryController
LanguageEnglish

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