KMC Controls STE-1400 Series Application Manual

Applications Guide

Type III Temperature Sensors

STE-1400 and Other Series

Contents

Introduction ...................................................................1

Mounting Considerations ...............................................1

Troubleshooting .............................................................1

Controller Configuration ................................................2

Overview ....................................................................2

BAC-A1616BC BACnet Building Controller ................2

BACstage Software .....................................................2

TotalControl Software ................................................3

WinControl Software..................................................3

Important Notices ..........................................................3

Maintenance ..................................................................3

Introduction

This document gives conguration, troubleshoot­ing, and other related information for temperature
sensors using Type III thermistors. For mounting,

wiring, and specications, see the respective product

installation guide and data sheet (STE-1400 Series

Data Sheet for STE-14xx sensors).

For information about Type II thermistor sensors,
see:

• STE-6010/6011/6013/6015 Application Guide for

room temperature sensors with optional override

buon and LED indicator.

• STE-6014/6017/6018/6019/6020 Application

Guide for room temperature sensors with rotary

setpoint dials and optional override buon and
LED indicator.

• STE-6012/6016 Application Guide for room

temperature transmiers with LCD displays.

The latest support les are always available on the

KMC Controls web site (www.kmccontrols.com).

Mounting Considerations

Depending on the application, space temperature
sensors generally should NOT be:

• Mounted on an exterior wall.

• Mounted on or near a large thermal mass (e.g.,
concrete block wall).

• Blocked from normal air circulation by obstruc­tions.

• Exposed to heat sources (e.g., lights, computers,
copiers, or coee makers) or to sunlight (at any
time of the day).

• Exposed to drafts from windows, diusers, or
returns.

• Exposed to air ow through the conduit (from

leaks in plenum ducts)—put plumber’s puy,
painter’s puy, caulk, or other sealant inside the
conduit to block air ow.

Apply what is relevant to other applications (e.g.,
duct sensor).

Troubleshooting

• Be sure the 10,000 ohm pull-up resistors on the
controller board are selected/turned ON.

• Check wiring. To prevent excessive voltage drop,
use a conductor size that is adequate for the
wiring length!

• Check sensor conguration and tables in the
controller.

• Check voltage from the controller.

• Check that the sensor is mounted correctly. (See
the Mounting Considerations section above.)

Type III Temperature Sensors 1 Applications Guide, AN1013A Rev. B

Controller Configuration

Overview

Ensure that the corresponding 10,000 ohm pull-up
resistors on the controller are selected (switched
On). Consult the controller’s setup instructions for

information on switching on the pull-up resistors.

See the relevant software section for controller

conguration instructions.

BAC-A1616BC BACnet Building Controller

Select the 10K ohm pull-up resistor jumper posi­tion for the corresponding input. (See the Installa-

tion section of the BAC-A1616ABC Building Control­ler Installation and Operation Guide for the correct
jumper position.)

Because the Building Controller has a 0–12 VDC

total input range, dierent tables are required than

in other (0–5 VDC) KMC controllers. If needed,

download the sensor tables (CSV) le from the

KMC Controls Partners web site and import the
needed tables as described in the Tables section of
the BAC-A1616ABC Building Controller Installa­tion and Operation Guide. (You must log into the

Partners site to see the zipped tables le on the

Building Controller product page downloads.)

1. In the desired Analog Input setup screen of the
web page interface, select KMC Type III Degree
Fahrenheit or KMC Type III Degree Celsius.

2. Select the Lookup Table for the Type III
Thermistor. (Having it in Table 3 is good
practice.)

BACstage Software

1. In the BACstage software main menu, select
Objects > Inputs.

2. Click Edit.

3. Type in a name in the appropriate Description

eld (up to 32 characters) and/or Name eld (up

to 16 characters).

NOTE: No two labels or descriptions in a controller

can be identical.

4. Select Object Type: Analog if it is not the default.

5. Select Device Type: KMC10K Type III.

6. Select Units: °F or °C.

7. Optionally, change the Filter Weight (under More)
to the desired number of thermistor readings
averaged before displaying the result.

8. Click End Edit.

9. Click Yes for “Send Update Notication Now?”

10. In the BACstage software main menu, select
Device > Device Tables > KMC10K Type III Table.

11. Click Edit.

12. Click Defaults (values will ll in).

13. Click End Edit.

14. Click Yes for “Send Update Notication Now?”

15. Click OK.

3. For the Fahrenheit scale, the multiplier is 1.8 and

the oset is 32. For Celsius, the multiplier is 1 and
the oset is 0.

4. Click Save.

NOTE: See also TotalControl Software on page

3.

Type III Temperature Sensors 2 Applications Guide, AN1013A Rev. B