FlexSys
Thermostat Zone Controller / LCD Touch Screen
TEC - 3620
Model:
©2016 Johnson Controls | The performance specifications are nominal and conform to acceptable industry standards. For applications 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.
© 2016 AirFixture, LLC
16
Installation / Operation Manual
V160919
TEC3000 Series On/Off or Floating Fan Coil and Zoning Thermostat Controllers with Dehumidification
Capability Installation Instructions
2. Press
Equipment Setup.
3. Press
General
.
4. Press
Actuator Stroke Time
and adjust
accordingly.
5. Press
to save and
to return to the
previous screen.
Configuring the Supply Fan - Fan Coil Only
On fan coil units (2-pipe or 4-pipe), three different types
of supply fans are supported. These are single-speed
fan, multi-speed fan (up to three discrete speeds) and
VSF using a 0-10V control signal and an optional
binary on/off command. Note
that fan control is not
available when in VAV mode. To select the fan type:
1. Press the Menu icon.
2. Press
Equipment Setup
.
3. Press
Supply Fan
.
4. Press
Supply Fan Type
and select Single Speed,
Multi-Speed, or Variable Speed.
5. Press
to save and
to return to the
previous screen.
For multi-speed fan control, you can adjust the point
when the medium or high speed turns on. The fan
speed is based on the load on the cooling/heating
device, and is a percentage between 0 and 100. By
default, the Med Speed On Cmd is 33% and the High
Speed On Cmd is 66%. When only two fan speeds are
used, you must set the High Speed On Cmd to 100% to
disable the third speed, and set the Med Speed On
Cmd to 50%. To adjust these values:
1. Press the Menu icon.
2. Press
Equipment Setup.
3. Press
Supply Fan
.
4. Press
Medium Speed On Cmd
and adjust
accordingly.
5. Press
High Speed On Cmd
and adjust
accordingly.
6. Press
to save and
to return to the
previous screen.
For VSF control, the output is configurable for any
range between 0 V and 10 V. The parameters are Start
Voltage, Full Speed Voltage, and Minimum Command.
Start Voltage is the voltage output at which the fan
begins running, and Full Speed Voltage is the voltage
output at which the fan reaches full speed. Minimum
Command is the percentage of the range between the
Start Voltage and the Full Speed Voltage. The fan does
not go below the minimum command when the fan is
turned on. By default, the Start Voltage is 2 V, the Full
Speed Voltage is 10 V, and the Minimum Command is
20%.
When the variable speed fan is off, the FAN binary
output is off and the voltage at the VSF output is 0 V.
When the fan turns on, the FAN binary output turns on
and the voltage at the VSF output begins controlling
the fan. When the VSF is configured for reverse acting
mode (Start Voltage is above Full Speed Voltage), the
VSF output goes to the lesser of 10 V and 1 V above
the Start Voltage when the fan is turned off.
To configure the variable speed parameters:
1. Press the Menu icon.
2. Press
Equipment Setup.
3. Press
Supply Fan
.
4. Press
Start Voltage
and adjust accordingly.
5. Press
Full Speed Voltage
and adjust accordingly.
6. Press
Minimum Command
and adjust
accordingly.
7. Press
to save and
to return to the
previous screen.
Setting the Control Mode
The Control Mode informs the controller to either run in
Cooling only mode, Heating only mode, or Automatic
mode based on the temperature in the zone relative to
the heating and cooling setpoints. Control Mode does
not override equipment lockouts or changeover. To set
the Control Mode:
1. Press the Menu icon.
2. Press
Control Setup
.
3. Press
General
.
4. Press
Control Mode
and select Cooling, Heating
or Auto as desired.
5. Press
to save and
to return to the
previous screen.