Honeywell SUITEPRO TB8575 User Manual
Page 11
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
0
Fan 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
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.