DCN: 141-00940-09 11/02/07
6
Remote Sensors
The TS16 Wall Display Unit has a remote sensor terminal block, J2, on the base for connection of a
remote temperature sensor. Without any remote sensor attached, the WDU uses the internal sensor for
the current temperature information. When a remote sensor is attached, the WDU will detect it
automatically
and will use the remote sensor(s) according to its address selection. Modes of operation are
as follows:
Address 1: Use the remote sensor instead of internal sensor. (becomes C1 in the calibration setup).
Address 2: Average remote sensor 2 with internal sensor or remote sensor 1. (C2 in the calibration setup)
Address 3: Not used with the TS16
Table of Remote Sensor Functions and Sensor Addresses
Function
Remote Addr 1
Remote Addr 2
Remote Addr 3
Use internal sensor only
No
No
Not used
Use remote sensor only
Yes
No
with TS16
Average internal and one remote
No
Yes
Average two remotes (only 2)
Yes
Yes
When averaging sensors are used, the
average
temperature is displayed on the WDU and reported to the
HVAC control unit. You cannot view an individual remote averaging sensor temperatures as the main
thermostat display or report individual sensor temperatures on the communication port. However, you can
check the individual sensor temperatures by going to the calibration setup menu and selecting the sensor
address. You can view the outside temperature by pressing both the UP/DOWN buttons simultaneously.
WDU Error Displays
“CF” Error Display
If the WDU is not properly wired or if communications to the Control Unit is interrupted, the LCD display will
display “CF” to denote communications failure. Momentary display of “CF” caused by bad or lost data, will
clear automatically when data communications is restored.
If the “CF” display stays on, check wiring for problems. A continuous “CF” display may indicate a problem
with the Control Unit or the WDU itself.
“SF” Error Display
If the WDU detects that a sensor is not responding, it will display “SF”. In most cases this will clear itself
when communications is restored to the sensor. A continuous “SF” display may indicate a problem with the
wiring or the WDU itself. Check wiring and replace the WDU as needed.
“-- --“ Error Display
This denotes that the temperature is invalid. Can appear if you select outside temperature and no remote
sensor is attached or if an error in temperature is sensed momentarily by the WDU. Clears automatically
when a valid temperature is read.