TB6575/TB8575 SUITEPRO™ DIGITAL FAN COIL THERMOSTATS
11 62-0278—07
Fig. 24. Installer Setup (IS) mode screen.
M27585
Setup
Table 4. Installer Setup (IS) Codes and Options.
IS
Code Code Description
Option
Value
Option Description (Default value shown in
Bold) Notes
1 Line Voltage
Selection
0 120 Vac power supply (Default)
1 240 Vac power supply
2 System Type 0 Heat only
1 Cool only
2 Two pipes: Heat or Cool; Manual Changeover
3 Two pipes: Heat or Cool; Seasonal Changeover
(requires optional pipe sensor)
4 Four pipes: Manual Changeover TB6575A, TB6575C and
TB8575A only
5 Four pipes: Auto Changeover TB6575A, TB6575C and
TB8575A only
6 Two pipes: Heat or Cool; with Auxiliary Heat
(requires optional pipe sensor).
Allows auxiliary heat to turn
on when pipes have cold
water
(TB6575A, TB6575C and
TB8575A only).
7 Four pipes: Manual and Auto Changeover
(Default)
TB6575A, TB6575C and
TB8575A only
2.5 Fan On/Off
Selection for Aux
Heat On
0Fan ON when Auxiliary Heat is on (Default) Enables or disables the
auto fan operation when
Auxiliary Heat is On
(TB6575A, TB6575C and
TB8575A only).
1 Fan OFF when Auxiliary Heat is on
3 Valve Output Type 0 N.C. (normally closed) - ON/OFF (Default)
1 N.O. (normally open) - ON/OFF
4 Sensor Type 0 Onboard Sensor (Default)
1 Remote Sensor (TR21 or other 20K Ohm sensor)
5 Pipe Sensor 0 Default mode is Heat:
N.O. (normally open) Input.
Only displays when system type 3 or 6 is selected.
The Pipe Sensor code
automatically displays
based on the System Type
(IS code #2) selection. For
example, only when you
select the value 3 or 6 for
the System Type, will the
Pipe Sensor code and its
values display.
•Pipe sensor will flash on
display screen if analog
input (#4) is lost.
•Pipe sensor status and
water temperature can be
checked in test mode (see
“Installer Test (IT) Mode” on
page 13 for details)
1 Default mode is Cool:
N.O. (normally open) Input.
Only displays when system type 3 or 6 is selected.
2 Default mode is Heat:
N.C. (normally closed) Input.
Only displays when system type 3 or 6 is selected.
3 Default mode is Cool:
N.C. (normally closed) Input.
Only displays when system type 3 or 6 is selected.
4 Analog input (Default). NTC20K, whose curve is
the same as TR21.
Only displays when system type 3 or 6 is selected.