Johnson Controls TEC3023-14-000 Installation Manual page 24

Proportional fan coil thermostats
Table of Contents

Advertisement

If the fan type is variable speed or multi speed, you can
select the speed at which the fan runs to satisfy the
minimum hourly runtime.
• In case of variable speed fan, select Variable Speed
Fan Circulation Setpoint and set the fan speed for
circulation in the range of 0% to 100%.
• In case of multi speed fan, select Multi-Speed Fan
Circulation Setpoint and set the fan speed for
circulation as Low, Med, or High.
This option is also exposed to the BAS through the points
SCH-CIR-EN, SCH-CIR-ONLYOCC, and MIN-HR-FAN. If
Scheduled Circulation is disabled, the other two objects
show unreliable.
Configurable analog inputs (AIs)
The thermostat controller supports up to three
configurable AIs that can be used to add different
features to the system. The configuration menu can be
accessed through Setup > Input Setup. All AIs can be
configured to support the following options:
• Relative Humidity—Sets up the AI to accept a 0 VDC-10
VDC input when connected to a humidity sensor.
• Remote Zone Temperature—Sets up the AI to accept
a resistive input when connected to one of the six
supported types of temperature sensors.
• Carbon Dioxide—Sets up the AI to accept a 0 VDC-10
VDC input when connected to a CO
• Damper Feedback—Sets up the AI to accept a 0 VDC-10
VDC input when connected.
• Outdoor Air Temperature—Sets up the AI to accept
a resistive input when connected to one of the six
supported types of temperature sensors.
• Supply Air Temperature—Sets up the AI to accept
a resistive input when connected to one of the six
supported types of temperature sensors.
Configuring the AIs
1.
Connect the required sensors to the analog inputs.
2.
Press the Menu icon.
3.
Press Setup.
4.
Press Input Setup.
5.
Press AI1 Input Selection and select the sensor
that is connected to RSEN. If the selected sensor
is a Remote Zone Temperature, Outdoor Air
Temperature, or Supply Air Temperature sensor,
the thermostat restarts.
24
TEC3000 Series Proportional Fan Coil Thermostats Installation Guide
sensor.
2
6.
Do one of the following after the restart based on
the type of sensor you are configuring:
- If the selected sensor is a temperature sensor,
do the following:
a. Press Menu > Setup > Input
-
Setup > AI1 Input Setup and select
the temperature sensor that is
connected to RSEN.
b. Press Menu > Setup > Input
-
Setup > AI1 Offset and select the
temperature offset as needed for
the sensor connected to RSEN. The
options are -5°F to 5°F or -2.8°C to
2.8°C.
- If the selected sensor is a Relative Humidity,
Carbon Dioxide, or Damper feedback sensor,
the Input Setup is automatically set to 0
VDC-10 VDC. Press Menu > Setup > Input
Setup > AI1 Offset and select the offset
needed for the sensor connected to RSEN. The
options are -15% to 15% for Relative Humidity,
-200 ppm to 200 ppm for Carbon Dioxide, and
-15% to 15% for Damper Feedback.
7.
Configure the analog inputs RSEN and COS by
following the same steps to set up AI1 Input
Selection, AI1 Input Setup, AI1 Offset, AI2 Input
Selection, AI2 Setup, and AI2 Offset.
8.
Complete steps 1 -7 to re-configure the respective
AI if you have to change the sensor connected
to any of the AIs. When the setup of AI1 Input
Selection and AI2 Input Selection changes from
resistive type (Remote Zone Temperature and
Outdoor Air Temperature) to 0 VDC-10 VDC type
(Relative Humidity and Carbon Dioxide) or the
other way around, the thermostat restarts.
Networked sensors
The TEC3000 supports sensor values supplied over a
network connection. For the TEC3000 to consider the
value as reliable, the value must be written to the NET-
Override network point at least every 15 minutes. The
following table provides a list of point descriptions and
the suggested write interval ranges.
Table 13: Point descriptions and suggested write
interval ranges
Name Description
NET-
Network Override Outdoor
OAT
Air Temperature
NET-
Network Override Outdoor
OAH
Air Humidity
NET-
Network Override Supply
SAT
Air Temperature
Suggested write
interval range
15 minutes at
maximum
15 minutes at
maximum
30 seconds to 2
minutes

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents