Troubleshooting; Repair Information - Johnson Controls TEC2604-4 Installation Instructions Manual

Entering Temporary Temperature Setpoints
To temporarily change the setpoint, press the
UP/DOWN arrow keys to change the temporary
setpoint for the current mode of operation.
Note: Whether the thermostat controller is heating or
cooling, the respective setpoint is temporarily adjusted.
To toggle between the temporary heating and cooling
setpoints, press the NO key while changing the
temporary setpoints.
Ending Temporary Temperature Setpoints
The temporary setpoints remain in effect for the
duration set in the TOccTime parameter or until
manually released.
To release the temporary setpoint sooner, while in the
Main User Menu:
1. Press the YES key to the first prompt that appears.
2. If the thermostat controller does not immediately
return to the Status Display Menu, press the MENU
key again and press the YES key to exit the Main
User Menu.
The setpoint reverts to the Permanent Temperature
Setpoint.
Selecting the System Mode
The thermostat controller has four system modes:
• Automatic Mode (auto): Automatic changeover
between heating and cooling. This is the default
setting.
• Cooling Mode (cool): Cooling operation only
• Heating Mode (heat): Heating operation only
• Off Mode (off): The thermostat controller is off;
however, when frost protection (Frost pr
parameter) is enabled, the thermostat controller
still calls for heat (if required).
To set the system mode while in the Main User Menu:
1. Press the NO key to all prompts until the system
mode prompt appears on the display. Press the
YES key to select the desired system mode.
2. Press 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 to the system
mode selection menu.
14 TEC2604-4 and TEC2604-4+PIR BACnet® MS/TP Networked Multi-Stage Economizer Thermostat
Controllers Installation Instructions
Selecting the Fan Mode
The thermostat controller has three fan mode settings:
• On Fan Mode (on): Energizes the fan all the time
for both occupied and unoccupied states, even if
the system mode is set to off.
• Automatic Fan Mode (auto): Energizes the fan
only on a call for heating or cooling, for both
occupied and unoccupied states.
• Smart Fan Mode (smart): Energizes the 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
desired fan mode.
3. Press the YES key to return to the Status Display
Menu or press the NO key to return to the fan
mode selection menu.

Troubleshooting

See Table 4 for display messaging. See Table 5 for
troubleshooting details.
Accessories
All the accessories in Table 3 include mounting
hardware; contact the nearest Johnson Controls®
representative to order any of these parts.
Note: Review the technical specifications of the
optional accessories prior to their use in an application.

Repair Information

If a TEC2604-4 or TEC2604-4+PIR Thermostat
Controller fails to operate within its specifications,
replace the unit. For a replacement thermostat
controller, contact the nearest Johnson Controls
representative.